summaryrefslogtreecommitdiffstats
path: root/tools
Commit message (Collapse)AuthorAgeFilesLines
* Merge branch 'perf-urgent-for-linus' of ↵Linus Torvalds2013-12-023-11/+31
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull perf fixes from Ingo Molnar: "Misc kernel and tooling fixes" * 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: tools lib traceevent: Fix conversion of pointer to integer of different size perf/trace: Properly use u64 to hold event_id perf: Remove fragile swevent hlist optimization ftrace, perf: Avoid infinite event generation loop tools lib traceevent: Fix use of multiple options in processing field perf header: Fix possible memory leaks in process_group_desc() perf header: Fix bogus group name perf tools: Tag thread comm as overriden
| * tools lib traceevent: Fix conversion of pointer to integer of different sizeArnaldo Carvalho de Melo2013-11-191-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | gcc complaint on 32-bit system: /home/acme/git/linux/tools/lib/traceevent/event-parse.c: In function ‘eval_num_arg’: /home/acme/git/linux/tools/lib/traceevent/event-parse.c:3468:9: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] This is because the eval_num_arg returns everything as an 'unsigned long long', so it converts a void pointer to a wider integer, fix it by converting the void pointer to an integer of the same size, 'unsigned long', before casting it to 'unsigned long long'. Acked-by: Steven Rostedt <rostedt@goodmis.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-yllx4aqcg06v5n4vjpwiiuld@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
| * tools lib traceevent: Fix use of multiple options in processing fieldSteven Rostedt2013-11-191-2/+21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Jiri Olsa reported that the scsi_dispatch_cmd_done event failed to parse with: Error: expected type 5 but read 4 Error: expected type 5 but read 4 The problem is with this part of the print_fmt: __print_symbolic(((REC->result) >> 24) & 0xff, ... The __print_symbolic() helper function's first parameter is the field to use to determine what symbol to print based on the value of the result. The parser can handle one operation, but it can not handle multiple operations ('>>' and '&'). Add code to process all operations for the field argument for __print_symbolic() as well as __print_flags(). Reported-by: Jiri Olsa <jolsa@redhat.com> Signed-off-by: Steven Rostedt <rostedt@goodmis.org> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Link: http://lkml.kernel.org/r/20131118142314.27ca334b@gandalf.local.home Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
| * perf header: Fix possible memory leaks in process_group_desc()Namhyung Kim2013-11-191-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | After processing all group descriptors or encountering an error, it frees all descriptors. However, current logic can leak memory since it might not traverse all descriptors. Note that the 'i' can have different value than nr_groups when an error occurred and it's safe to call free(desc[i].name) for every desc since we already make it NULL when it's reused for group names. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1384741244-7271-2-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
| * perf header: Fix bogus group nameNamhyung Kim2013-11-191-1/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | When processing event group descriptor in perf file header, we reuse an allocated group name but forgot to prevent it from freeing. Reported-by: Stephane Eranian <eranian@google.com> Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1384741244-7271-1-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
| * perf tools: Tag thread comm as overridenFrederic Weisbecker2013-11-191-6/+5Star
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The problem is that when a thread overrides its default ":%pid" comm, we forget to tag the thread comm as overriden. Hence, this overriden comm is not inherited on future forks. Fix it. Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com> Tested-by: David Ahern <dsahern@gmail.com> Acked-by: Namhyung Kim <namhyung@kernel.org> Cc: David Ahern <dsahern@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Link: http://lkml.kernel.org/r/20131116010207.GA18855@localhost.localdomain Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* | tools: cpupower: fix wrong err msg not supported vs not availableThomas Renninger2013-11-251-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | idlestates in sysfs are counted from 0. This fixes a wrong error message. Current behavior on a machine with 4 sleep states is: cpupower idle-set -e 4 Idlestate 4 enabled on CPU 0 -----Wrong--------------------- cpupower idle-set -e 5 Idlestate enabling not supported by kernel -----Must and now will be ----- cpupower idle-set -e 5 Idlestate 6 not available on CPU 0 ------------------------------- cpupower idle-set -e 6 Idlestate 6 not available on CPU 0 Signed-off-by: Thomas Renninger <trenn@suse.de> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
* | tools: cpupower: Add cpupower-idle-set(1) manpageThomas Renninger2013-11-252-1/+73
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The cpupower idle-set subcommand was introduce recently. This patch provides the missing manpage. If cpupower is properly installed it will show up automatically (similar to git), when invoking: cpupower help idle-set or cpupower idle-set --help Some parts have been taken over and adjusted from git commit 62d6ae880e3e76098 documentation submitted by Carsten Emde. Signed-off-by: Thomas Renninger <trenn@suse.de> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
* | Merge tag 'pm+acpi-2-3.13-rc1' of ↵Linus Torvalds2013-11-201-56/+141
|\ \ | |/ |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull more ACPI and power management updates from Rafael Wysocki: - ACPI-based device hotplug fixes for issues introduced recently and a fix for an older error code path bug in the ACPI PCI host bridge driver - Fix for recently broken OMAP cpufreq build from Viresh Kumar - Fix for a recent hibernation regression related to s2disk - Fix for a locking-related regression in the ACPI EC driver from Puneet Kumar - System suspend error code path fix related to runtime PM and runtime PM documentation update from Ulf Hansson - cpufreq's conservative governor fix from Xiaoguang Chen - New processor IDs for intel_idle and turbostat and removal of an obsolete Kconfig option from Len Brown - New device IDs for the ACPI LPSS (Low-Power Subsystem) driver and ACPI-based PCI hotplug (ACPIPHP) cleanup from Mika Westerberg - Removal of several ACPI video DMI blacklist entries that are not necessary any more from Aaron Lu - Rework of the ACPI companion representation in struct device and code cleanup related to that change from Rafael J Wysocki, Lan Tianyu and Jarkko Nikula - Fixes for assigning names to ACPI-enumerated I2C and SPI devices from Jarkko Nikula * tag 'pm+acpi-2-3.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (24 commits) PCI / hotplug / ACPI: Drop unused acpiphp_debug declaration ACPI / scan: Set flags.match_driver in acpi_bus_scan_fixed() ACPI / PCI root: Clear driver_data before failing enumeration ACPI / hotplug: Fix PCI host bridge hot removal ACPI / hotplug: Fix acpi_bus_get_device() return value check cpufreq: governor: Remove fossil comment in the cpufreq_governor_dbs() ACPI / video: clean up DMI table for initial black screen problem ACPI / EC: Ensure lock is acquired before accessing ec struct members PM / Hibernate: Do not crash kernel in free_basic_memory_bitmaps() ACPI / AC: Remove struct acpi_device pointer from struct acpi_ac spi: Use stable dev_name for ACPI enumerated SPI slaves i2c: Use stable dev_name for ACPI enumerated I2C slaves ACPI: Provide acpi_dev_name accessor for struct acpi_device device name ACPI / bind: Use (put|get)_device() on ACPI device objects too ACPI: Eliminate the DEVICE_ACPI_HANDLE() macro ACPI / driver core: Store an ACPI device pointer in struct acpi_dev_node cpufreq: OMAP: Fix compilation error 'r & ret undeclared' PM / Runtime: Fix error path for prepare PM / Runtime: Update documentation around probe|remove|suspend cpufreq: conservative: set requested_freq to policy max when it is over policy max ...
| * Merge branch 'pm-tools'Rafael J. Wysocki2013-11-191-56/+141
| |\ | | | | | | | | | | | | * pm-tools: tools / power turbostat: Support Silvermont
| | * tools / power turbostat: Support SilvermontLen Brown2013-11-121-56/+141
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Support the next generation Intel Atom processor mirco-architecture, formerly called Silvermont. The server version, formerly called "Avoton", is named the "Intel(R) Atom(TM) Processor C2000 Product Family". The client version, formerly called "Bay Trail", is named the "Intel Atom Processor Z3000 Series", as well as various "Intel Pentium Processor" and "Intel Celeron Processor" brands, depending on form-factor. Silvermont has a set of MSRs not far off from NHM, but the RAPL register set is a sub-set of those previously supported. Signed-off-by: Len Brown <len.brown@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
* | | Merge branch 'perf-urgent-for-linus' of ↵Linus Torvalds2013-11-1619-38/+63
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull perf fixes from Ingo Molnar: "Tooling changes only: it includes the ARM tooling fixlets, various other fixes, smaller updates, minor cleanups" * 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: perf record: Add an option to force per-cpu mmaps perf probe: Add '--demangle'/'--no-demangle' perf ui browser: Fix segfault caused by off by one handling END key perf symbols: Limit max callchain using max_stack on DWARF unwinding too perf evsel: Introduce perf_evsel__prev() method perf tools: Use perf_evlist__{first,last}, perf_evsel__next perf tools: Synthesize anon MMAP records again perf top: Add missing newline if the 'uid' is invalid perf tools: Remove trivial extra semincolon perf trace: Tweak summary output tools/perf/build: Fix feature-libunwind-debug-frame handling tools/perf/build: Fix timerfd feature check
| * | | perf record: Add an option to force per-cpu mmapsAdrian Hunter2013-11-145-3/+14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | By default, when tasks are specified (i.e. -p, -t or -u options) per-thread mmaps are created. Add an option to override that and force per-cpu mmaps. Further comments by peterz: So this option allows -t/-p/-u to create one buffer per cpu and attach all the various thread/process/user tasks' their counters to that one buffer? As opposed to the current state where each such counter would have its own buffer. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Tested-by: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com> Acked-by: Peter Zijlstra <peterz@infradead.org> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1383313899-15987-7-git-send-email-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
| * | | perf probe: Add '--demangle'/'--no-demangle'Azat Khuzhin2013-11-141-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | You can't pass demangled name into "perf probe", because of special chars: ./perf probe -f -x /tmp/a.out 'foo(int)' Semantic error :There is non-digit char in line number. And you can't even pass without demangling (because it search symbol in DSO with demangle=true): ./perf probe -f -x /tmp/a.out _Z3fooi no symbols found in /tmp/a.out, maybe install a debug package? However: nm /tmp/a.out | grep foo 000000000040056d T _Z3fooi After this patch, using the next command: ./perf probe -f --no-demangle -x /tmp/a.out _Z3fooi probe will be successfully added. Signed-off-by: Azat Khuzhin <a3at.mail@gmail.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1382947464-31266-1-git-send-email-a3at.mail@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
| * | | perf ui browser: Fix segfault caused by off by one handling END keyArnaldo Carvalho de Melo2013-11-141-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | $ perf record ls $ perf report Press 'down enter end' Result: Program received signal SIGSEGV, Segmentation fault. The UI browser, used on a argv array would access past the end of the array on SEEK_END because it wasn't using 'nr_entries - 1', fix it. Reported-by: v.karpov@samsung.com Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=59291 Link: http://lkml.kernel.org/n/tip-3g83ipasqi219ktv764xzzjs@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
| * | | perf symbols: Limit max callchain using max_stack on DWARF unwinding tooArnaldo Carvalho de Melo2013-11-143-7/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | It was affecting only frame-pointer (fp) based callchain processing. Usage example: perf top --call-graph dwarf,1024 --max-stack 2 Works for any tool that does callchain resolving and provides a --max-stack option. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Waiman Long <Waiman.Long@hp.com> Link: http://lkml.kernel.org/n/tip-eu45v8s3tq9ruay8tpfyon79@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
| * | | perf evsel: Introduce perf_evsel__prev() methodArnaldo Carvalho de Melo2013-11-142-1/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Just one use so far, on the hists browser, for completeness since there we use perf_evlist__{first,last} and perf_evsel__next() for handling the TAB and UNTAB keys. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-d09l4lejp5427enuf3igpckw@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
| * | | perf tools: Use perf_evlist__{first,last}, perf_evsel__nextArnaldo Carvalho de Melo2013-11-142-7/+5Star
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In a few remaining places where the equivalent open coded variant was still being used. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-4vjnloi5fisilykwxalb5nel@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
| * | | perf tools: Synthesize anon MMAP records againDon Zickus2013-11-141-2/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When introducing the PERF_RECORD_MMAP2 in: 5c5e854bc760 perf tools: Add attr->mmap2 support A check for the number of entries parsed by sscanf was introduced that assumed all of the 8 fields needed to be correctly parsed so that particular /proc/pid/maps line would be considered synthesizable. That broke anon records synthesizing, as it doesn't have the 'execname' field. Fix it by keeping the sscanf return check, changing it to not require that the 'execname' variable be parsed, so that the preexisting logic can kick in and set it to '//anon'. This should get things like JIT profiling working again. Signed-off-by: Don Zickus <dzickus@redhat.com> Cc: Bill Gray <bgray@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Joe Mario <jmario@redhat.com> Cc: Richard Fowles <rfowles@redhat.com> Cc: Stephane Eranian <eranian@google.com> Cc: stable@vger.kernel.org Link: http://lkml.kernel.org/n/tip-bo4akalno7579shpz29u867j@git.kernel.org [ commit log message is mine, dzickus reported the problem with a patch ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
| * | | perf top: Add missing newline if the 'uid' is invalidIngo Molnar2013-11-141-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add missing newline if the 'uid' is invalid: hubble:~> perf top --stdio -u help Error: Invalid User: helphubble:~> Fixed by this patch: comet:~/tip/tools/perf> perf top --stdio -u help Error: Invalid User: help comet:~/tip/tools/perf> Signed-off-by: Ingo Molnar <mingo@kernel.org> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Link: http://lkml.kernel.org/r/20131112232609.GA31474@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
| * | | perf tools: Remove trivial extra semincolonDavidlohr Bueso2013-11-142-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Accidentally ran into these, get rid of them. Signed-off-by: Davidlohr Bueso <davidlohr@hp.com> Link: http://lkml.kernel.org/r/1384323864.2527.8.camel@buesod1.americas.hpqcorp.net Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
| * | | perf trace: Tweak summary outputPekka Enberg2013-11-141-5/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Tweak the summary output as suggested by Ingo Molnar: [penberg@localhost ~]$ perf trace -a --duration 10000 --summary -- sleep 1 ^C Summary of events: Xorg (817), 148 events, 0.0%, 0.000 msec syscall calls min avg max stddev (msec) (msec) (msec) (%) --------------- -------- --------- --------- --------- ------ read 7 0.002 0.004 0.011 32.00% rt_sigprocmask 40 0.001 0.001 0.002 1.31% ioctl 6 0.002 0.003 0.005 19.45% writev 7 0.004 0.018 0.059 43.76% select 9 0.000 74.513 507.869 74.61% setitimer 4 0.001 0.002 0.002 10.08% Suggested-by: Ingo Molnar <mingo@kernel.org> Signed-off-by: Pekka Enberg <penberg@kernel.org> Acked-by: Ingo Molnar <mingo@kernel.org> Cc: David Ahern <dsahern@gmail.com> Cc: Ingo Molnar <mingo@redhat.com> Link: http://lkml.kernel.org/r/1384345308-24404-1-git-send-email-penberg@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
| * | | tools/perf/build: Fix feature-libunwind-debug-frame handlingIngo Molnar2013-11-143-6/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Set feature-libunwind-debug-frame. We don't want it in CORE_FEATURE_TESTS because it's not the generic case, but we need to set it in the !feature-libunwind case. Also, because x86 distributions typically don't have dwarf_find_debug_frame() unwinding method: test-libunwind-debug-frame.c:(.text+0x31): undefined reference to `_Ux86_64_dwarf_find_debug_frame' Restrict this new API to ARM for the time being. With this patch test-all.c works again, so repeat perf builds are fast again: comet:~/tip> perf stat --null --repeat 5 make -C tools/perf/ [...] 0,452899660 seconds time elapsed ( +- 0,11% ) While with before it was: comet:~/tip> perf stat --null --repeat 5 make -C tools/perf/ [...] 1,674001829 seconds time elapsed ( +- 0,16% ) [ Includes fix to config/feature-checks/Makefile from Will Deacon. ] Tested-by: Will Deacon <will.deacon@arm.com> Tested-by: Jean Pihet <jean.pihet@linaro.org> Cc: Russell King <rmk@arm.linux.org.uk> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Arnaldo Carvalho de Melo <acme@infradead.org> Cc: Jiri Olsa <jolsa@redhat.com> Link: http://lkml.kernel.org/n/tip-scsoctqzmou3rpkixCHezy9e@git.kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
| * | | tools/perf/build: Fix timerfd feature checkIngo Molnar2013-11-141-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 'feature_timerfd' is checked all the time and calculated explicitly, in a serial fashion. Add it to CORE_FEATURE_TESTS which causes it to be built in parallel, using the newfangled parallel build autodetection code. This shaves 137 msecs off the perf build time on my system, which speeds up the common case cached build by 43%: Before: comet:~/tip> perf stat --null --repeat 5 make -C tools/perf/ [...] 0,453771441 seconds time elapsed ( +- 0,09% ) After: comet:~/tip> perf stat --null --repeat 5 make -C tools/perf/ [...] 0,316290185 seconds time elapsed ( +- 0,24% ) Cc: David Ahern <dsahern@gmail.com> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Link: http://lkml.kernel.org/n/tip-bb92CmexihopoSyqnkqepvsy@git.kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
| * | | Merge branch 'linus' into perf/urgentIngo Molnar2013-11-1419-39/+2389
| |\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | Merge dependencies to apply a fix. Signed-off-by: Ingo Molnar <mingo@kernel.org>
* | \ \ \ Merge tag 'virtio-next-for-linus' of ↵Linus Torvalds2013-11-152-6/+13
|\ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux Pull virtio updates from Rusty Russell: "Nothing really exciting: some groundwork for changing virtio endian, and some robustness fixes for broken virtio devices, plus minor tweaks" * tag 'virtio-next-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux: virtio_scsi: verify if queue is broken after virtqueue_get_buf() x86, asmlinkage, lguest: Pass in globals into assembler statement virtio: mmio: fix signature checking for BE guests virtio_ring: adapt to notify() returning bool virtio_net: verify if queue is broken after virtqueue_get_buf() virtio_console: verify if queue is broken after virtqueue_get_buf() virtio_blk: verify if queue is broken after virtqueue_get_buf() virtio_ring: add new function virtqueue_is_broken() virtio_test: verify if virtqueue_kick() succeeded virtio_net: verify if virtqueue_kick() succeeded virtio_ring: let virtqueue_{kick()/notify()} return a bool virtio_ring: change host notification API virtio_config: remove virtio_config_val virtio: use size-based config accessors. virtio_config: introduce size-based accessors. virtio_ring: plug kmemleak false positive. virtio: pm: use CONFIG_PM_SLEEP instead of CONFIG_PM
| * | | | | virtio_test: verify if virtqueue_kick() succeededHeinz Graalfs2013-10-291-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Verify if a host kick succeeded by checking return value of virtqueue_kick(). Signed-off-by: Heinz Graalfs <graalfs@linux.vnet.ibm.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
| * | | | | virtio_ring: change host notification APIHeinz Graalfs2013-10-292-5/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently a host kick error is silently ignored and not reflected in the virtqueue of a particular virtio device. Changing the notify API for guest->host notification seems to be one prerequisite in order to be able to handle such errors in the context where the kick is triggered. This patch changes the notify API. The notify function must return a bool return value. It returns false if the host notification failed. Signed-off-by: Heinz Graalfs <graalfs@linux.vnet.ibm.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
* | | | | | Merge branch 'perf-urgent-for-linus' of ↵Linus Torvalds2013-11-1431-264/+363
|\ \ \ \ \ \ | | |/ / / / | |/| / / / | |_|/ / / |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull perf updates from Ingo Molnar: "A number of fixes: - Fix segfault on perf trace -i perf.data, from Namhyung Kim. - Fix segfault with --no-mmap-pages, from David Ahern. - Don't force a refresh during progress update in the TUI, greatly reducing startup costs, fix from Patrick Palka. - Fix sw clock event period test wrt not checking if using > max_sample_freq. - Handle throttle events in 'object code reading' test, fix from Adrian Hunter. - Prevent condition that all sort keys are elided, fix from Namhyung Kim. - Round mmap pages to power 2, from David Ahern. And a number of late arrival changes: - Add summary only option to 'perf trace', suppressing the decoding of events, from David Ahern - 'perf trace --summary' formatting simplifications, from Pekka Enberg. - Beautify fifth argument of mmap() as fd, in 'perf trace', from Namhyung Kim. - Add direct access to dynamic arrays in libtraceevent, from Steven Rostedt. - Synthesize non-exec MMAP records when --data used, allowing the resolution of data addresses to symbols (global variables, etc), by Arnaldo Carvalho de Melo. - Code cleanups by David Ahern and Adrian Hunter" * 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (23 commits) tools lib traceevent: Add direct access to dynamic arrays perf target: Shorten perf_target__ to target__ perf tests: Handle throttle events in 'object code reading' test perf evlist: Refactor mmap_pages parsing perf evlist: Round mmap pages to power 2 - v2 perf record: Fix segfault with --no-mmap-pages perf trace: Add summary only option perf trace: Simplify '--summary' output perf trace: Change syscall summary duration order perf tests: Compensate lower sample freq with longer test loop perf trace: Fix segfault on perf trace -i perf.data perf trace: Separate tp syscall field caching into init routine to be reused perf trace: Beautify fifth argument of mmap() as fd perf tests: Use lower sample_freq in sw clock event period test perf tests: Check return of perf_evlist__open sw clock event period test perf record: Move existing write_output into helper function perf record: Use correct return type for write() perf tools: Prevent condition that all sort keys are elided perf machine: Simplify synthesize_threads method perf machine: Introduce synthesize_threads method out of open coded equivalent ...
| * | | | Merge tag 'perf-core-for-mingo' of ↵Ingo Molnar2013-11-1231-264/+363
| |\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/urgent Pull perf/core improvements and fixes from Arnaldo Carvalho de Melo: * Add summary only option to 'perf trace', suppressing the decoding of events, from David Ahern * 'perf trace --summary' formatting simplifications, from Pekka Emberg. * Beautify fifth argument of mmap() as fd, in 'perf trace', from Namhyung Kim. * Fix segfault on perf trace -i perf.data, from Namhyung Kim. * Fix segfault with --no-mmap-pages, from David Ahern. * Round mmap pages to power 2, from David Ahern. * Add direct access to dynamic arrays in libtraceevent, from Steven Rostedt. * Handle throttle events in 'object code reading' test, fix from Adrian Hunter. * Prevent condition that all sort keys are elided, fix from Namhyung Kim. * Synthesize non-exec MMAP records when --data used, allowing the resolution of data addresses to symbols (global variables, etc). * Don't force a refresh during progress update in the TUI, greatly reducing startup costs, fix from Patrick Palka. * Fix sw clock event period test wrt not checking if using > max_sample_freq. * Code cleanups by David Ahern and Adrian Hunter. Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: Ingo Molnar <mingo@kernel.org>
| | * | | | tools lib traceevent: Add direct access to dynamic arraysSteven Rostedt2013-11-121-0/+13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Jiri Olsa was writing a plugin for the cfg80211_tx_mlme_mgmt trace event, and was not able to get the implemented function working. The event's print fmt looks like: "netdev:%s(%d), ftype:0x%.2x", REC->name, REC->ifindex, __le16_to_cpup((__le16 *)__get_dynamic_array(frame)) As there's no helper function for __le16_to_cpup(), Jiri was creating one with a plugin. But unfortunately, it would not work even though he set up the plugin correctly. The problem is that the function parameters do not handle the helper function "__get_dynamic_array()", and that passes in a NULL pointer. Adding PRINT_DYNAMIC_ARRAY direct support to eval_num_arg() allows the use of __get_dynamic_array() in function parameters. Reported-by: Jiri Olsa <jolsa@redhat.com> Signed-off-by: Steven Rostedt <rostedt@goodmis.org> Tested-by: Jiri Olsa <jolsa@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Link: http://lkml.kernel.org/r/20131111160810.0ba9df7d@gandalf.local.home Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
| | * | | | perf target: Shorten perf_target__ to target__Arnaldo Carvalho de Melo2013-11-1216-109/+99Star
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Getting unwieldly long, for this app domain should be descriptive enough and the use of __ to separate the class from the method names should help with avoiding clashes with other code bases. Reported-by: David Ahern <dsahern@gmail.com> Suggested-by: Ingo Molnar <mingo@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/20131112113427.GA4053@ghostprotocols.net Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
| | * | | | perf tests: Handle throttle events in 'object code reading' testAdrian Hunter2013-11-121-2/+13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Unhandled events cause an error that fails the test, fix it. Reported-by: Arnaldo Carvalho de Melo <acme@ghostprotocols.net> Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/5281DFE5.3000909@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
| | * | | | perf evlist: Refactor mmap_pages parsingDavid Ahern2013-11-121-11/+28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Logic will be re-used for the out-pages argument for mmap based writes in perf-record. Signed-off-by: David Ahern <dsahern@gmail.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Link: http://lkml.kernel.org/r/1384267617-3446-4-git-send-email-dsahern@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
| | * | | | perf evlist: Round mmap pages to power 2 - v2David Ahern2013-11-121-12/+6Star
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently perf requires the -m / --mmap_pages option to be a power of 2. To be more user friendly perf should automatically round this up to the next power of 2. Currently: $ perf record -m 3 -a -- sleep 1 --mmap_pages/-m value must be a power of two.sleep: Terminated With patch: $ perf record -m 3 -a -- sleep 1 rounding mmap pages size to 16384 (4 pages) ... v2: Add bytes units to rounding message per Ingo's request. Other suggestions (e.g., prefixing INFO) should be addressed by wrapping pr_info to catch all instances. Suggested-by: Ingo Molnar <mingo@kernel.org> Signed-off-by: David Ahern <dsahern@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Link: http://lkml.kernel.org/r/1384267617-3446-3-git-send-email-dsahern@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
| | * | | | perf record: Fix segfault with --no-mmap-pagesDavid Ahern2013-11-121-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Adrian reported a segfault when using --no-out-pages: $ tools/perf/perf record -vv --no-out-pages uname Segmentation fault (core dumped) The same occurs with --no-mmap-pages. Fix by checking that str is non-NULL before parsing it. Signed-off-by: David Ahern <dsahern@gmail.com> Reported-by: Adrian Hunter <adrian.hunter@intel.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Link: http://lkml.kernel.org/r/1384267617-3446-2-git-send-email-dsahern@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
| | * | | | perf trace: Add summary only optionDavid Ahern2013-11-122-5/+21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Per request from Pekka make --summary a summary only option meaning do not show the individual system calls. Add another option to see all syscalls along with the summary. In addition use 's' and 'S' as shortcuts for the options. Requested-by: Pekka Enberg <penberg@kernel.org> Signed-off-by: David Ahern <dsahern@gmail.com> Tested-by: Pekka Enberg <penberg@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Pekka Enberg <penberg@kernel.org> Link: http://lkml.kernel.org/r/1384273875-3751-1-git-send-email-dsahern@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
| | * | | | perf trace: Simplify '--summary' outputPekka Enberg2013-11-121-13/+12Star
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The output of 'perf trace --summary' tries to be too cute with formatting and makes it very hard to read. Simplify it in the spirit of "strace -c": [penberg@localhost libtrading]$ perf trace -a --duration 10000 --summary -- sleep 1 ^C Summary of events: dbus-daemon (555), 10 events, 0.0%, 0.000 msec msec/call syscall calls min avg max stddev --------------- -------- -------- -------- -------- ------ sendmsg 2 0.002 0.005 0.008 55.00 recvmsg 2 0.002 0.003 0.005 44.00 epoll_wait 1 0.000 0.000 0.000 0.00 NetworkManager (667), 56 events, 0.0%, 0.000 msec msec/call syscall calls min avg max stddev --------------- -------- -------- -------- -------- ------ poll 2 0.000 0.002 0.003 100.00 sendmsg 10 0.004 0.007 0.016 15.41 recvmsg 16 0.002 0.003 0.005 8.24 zfs-fuse (669), 4 events, 0.0%, 0.000 msec msec/call syscall calls min avg max stddev --------------- -------- -------- -------- -------- ------ futex 2 0.000 0.001 0.002 100.00 Signed-off-by: Pekka Enberg <penberg@kernel.org> Cc: David Ahern <dsahern@gmail.com> Cc: Ingo Molnar <mingo@redhat.com> Link: http://lkml.kernel.org/r/1384267334-18953-1-git-send-email-penberg@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
| | * | | | perf trace: Change syscall summary duration orderPekka Enberg2013-11-121-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Switch duration order to minimum, average, maximum for the '--summary' command line option because it's more natural to read. Signed-off-by: Pekka Enberg <penberg@kernel.org> Acked-by: David Ahern <dsahern@gmail.com> Cc: David Ahern <dsahern@gmail.com> Cc: Ingo Molnar <mingo@redhat.com> Link: http://lkml.kernel.org/r/1384265410-12344-1-git-send-email-penberg@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
| | * | | | perf tests: Compensate lower sample freq with longer test loopAdrian Hunter2013-11-121-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Doesn't work for me: ./perf test -v 19 19: Test software clock events have valid period values : --- start --- mmap size 528384B mmap size 528384B All (0) samples have period value of 1! ---- end ---- Test software clock events have valid period values: FAILED! Compensate the lower freq introduced in 67c1e4a53b17 with a longer loop, Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/5281D3B8.2030104@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
| | * | | | perf trace: Fix segfault on perf trace -i perf.dataNamhyung Kim2013-11-121-16/+21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When replaying a previous record session, it'll get a segfault since it doesn't initialize raw_syscalls enter/exit tracepoint's evsel->priv for caching the format fields. So fix it by properly initializing sys_enter/exit evsels that comes from reading the perf.data file header. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: David Ahern <dsahern@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Pekka Enberg <penberg@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1384237500-22991-2-git-send-email-namhyung@kernel.org [ Split the syscall tp field caching part in the previous patch ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
| | * | | | perf trace: Separate tp syscall field caching into init routine to be reusedNamhyung Kim2013-11-121-8/+20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We need to set this in evsels coming out of a perf.data file header, not just for new ones created for live sessions. So separate the code that caches the syscall entry/exit tracepoint format fields into a new function that will be used in the next changeset. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/20131112115700.GC4053@ghostprotocols.net Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
| | * | | | perf trace: Beautify fifth argument of mmap() as fdNamhyung Kim2013-11-121-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The fifth argument of mmap syscall is fd and it often contains -1 as a value for anon mappings. Without this patch it doesn't show the file name as well as it shows -1 as 4294967295. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Acked-by: David Ahern <dsahern@gmail.com> Cc: David Ahern <dsahern@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1384237500-22991-1-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
| | * | | | perf tests: Use lower sample_freq in sw clock event period testArnaldo Carvalho de Melo2013-11-111-2/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We were using it at 10 kHz, which doesn't work in machines where somehow the max freq was auto reduced by the kernel: [root@ssdandy ~]# perf test 19 19: Test software clock events have valid period values : FAILED! [root@ssdandy ~]# perf test -v 19 19: Test software clock events have valid period values : --- start --- Couldn't open evlist: Invalid argument ---- end ---- Test software clock events have valid period values: FAILED! [root@ssdandy ~]# [root@ssdandy ~]# cat /proc/sys/kernel/perf_event_max_sample_rate 7000 Reducing it to 500 Hz should be good enough for this test and also shouldn't affect what it is testing. But warn the user if it fails, informing the knob and the freq tried. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-548rhj1uo6xbwnxa95kw3hqe@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
| | * | | | perf tests: Check return of perf_evlist__open sw clock event period testArnaldo Carvalho de Melo2013-11-111-1/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We were not checking if we successfully opened the counters, i.e. if sys_perf_event_open worked, when it doesn't in this test, we were continuing anyway and then segfaulting when trying to access the file descriptor array, that at that point had been freed in perf_evlist__open error path: [root@ssdandy ~]# perf test -v 19 19: Test software clock events have valid period values : --- start --- Segmentation fault (core dumped) [root@ssdandy ~]# Do the check and bail out instead. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-6qy8ljkn0e9hm7bh7keo5z68@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
| | * | | | perf record: Move existing write_output into helper functionDavid Ahern2013-11-111-1/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Code move only; no logic changes. In preparation for the mmap based output option in the next patch. Signed-off-by: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1383884605-30968-2-git-send-email-dsahern@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
| | * | | | perf record: Use correct return type for write()Adrian Hunter2013-11-111-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | write() returns a 'ssize_t' not an 'int'. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1383906470-21002-1-git-send-email-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
| | * | | | perf tools: Prevent condition that all sort keys are elidedNamhyung Kim2013-11-111-0/+13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If given sort keys are all elided there'll be no output except for the overhead column - actually the TUI shows a noisy output. In this case it'd be better to show up the sort keys rather than elide. Before: $ perf report -s comm -c perf (...) # Overhead # ........ # 100.00% After: $ perf report -s comm -c perf (...) # Overhead Command # ........ ....... # 100.00% perf Signed-off-by: Namhyung Kim <namhyung@kernel.org> Acked-by: Ingo Molnar <mingo@kernel.org> Cc: Ingo Molnar <mingo@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1383900822-14609-1-git-send-email-namhyung@kernel.org [ Us curly braces around multi-line statements, as requested by Ingo Molnar ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
| | * | | | perf machine: Simplify synthesize_threads methodArnaldo Carvalho de Melo2013-11-116-16/+22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Several tools (top, kvm) don't need to be called back to process each of the syntheiszed records, instead relying on the machine__process_event function to change the per machine data structures that represent threads and mmaps, so provide a way to ask for this common idiom. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-pusqibp8n3c4ynegd1frn4zd@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
| | * | | | perf machine: Introduce synthesize_threads method out of open coded equivalentArnaldo Carvalho de Melo2013-11-116-39/+26Star
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Further simplifications to be done on following patch, as most tools don't use the callback, using instead just the canned machine__process_event one. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-r1m0vuuj3cat4bampno9yc8d@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
generated by cgit v1.2.3-55-g7522 (git 2.39.0) at 2024-07-12 11:00:53 +0200