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* perf stat: Fix up resource release orderArnaldo Carvalho de Melo2011-02-011-2/+2
| | | | | | | | | | | | | | | | That was causing a SEGV on selected old distros. Problem introduced in 7e2ed09. Reported-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Stephane Eranian <eranian@google.com> Cc: Tom Zanussi <tzanussi@gmail.com> LKML-Reference: <new-submission> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf tools: Fix up 'make clean' targetArnaldo Carvalho de Melo2011-02-011-3/+1Star
| | | | | | | | | | | | | | | It wasn't using $(OUTPUT) to rm *.o and there were some funny looking automake files that never get created but were being deleted anyway. Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Tom Zanussi <tzanussi@gmail.com> LKML-Reference: <new-submission> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf tools: Remove verbose build messages for the python bindingArnaldo Carvalho de Melo2011-02-011-4/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Also now it builds it in a well known location: [acme@felicio linux]$ rm -rf ../build/perf/ [acme@felicio linux]$ mkdir ../build/perf [acme@felicio linux]$ make -j2 O=~acme/git/build/perf -C tools/perf/ <SNIP> [acme@felicio linux]$ ls -la ../build/perf/python/ total 152 -rwxrwxr-x 1 acme acme 147957 Feb 1 14:56 perf.so drwxrwxr-x 3 acme acme 17 Feb 1 14:56 temp [acme@felicio linux]$ [root@felicio ~]# strip ~acme/git/build/perf/python/perf.so [root@felicio ~]# ls -la ~acme/git/build/perf/python/perf.so -rwxrwxr-x 1 acme acme 46264 Feb 1 14:58 /home/acme/git/build/perf/python/perf.so [root@felicio ~]# export PYTHONPATH=~acme/git/build/perf/python/ [root@felicio ~]# ~acme/git/linux/tools/perf/python/twatch.py cpu: 0, pid: 7751, tid: 7751 { type: exit, pid: 7751, ppid: 7751, tid: 7751, ptid: 7751, time: 54562393512356} cpu: 0, pid: 13700, tid: 13700 { type: fork, pid: 7756, ppid: 13700, tid: 7756, ptid: 13700, time: 54562393746739} cpu: 1, pid: 7756, tid: 7756 { type: fork, pid: 7757, ppid: 7756, tid: 7757, ptid: 7756, time: 54562394246152} cpu: 1, pid: 7757, tid: 7757 { type: comm, pid: 7757, tid: 7757, comm: awk } cpu: 1, pid: 7757, tid: 7757 { type: exit, pid: 7757, ppid: 7757, tid: 7757, ptid: 7757, time: 54562395456813} Reported-by: Ingo Molnar <mingo@elte.hu> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Tom Zanussi <tzanussi@gmail.com> LKML-Reference: <new-submission> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf python: Fix build on 32-bitArnaldo Carvalho de Melo2011-01-312-27/+28
| | | | | | | | | | | | | | | | | Where there are lots of errors related to python methods receiving 'char *' for things like file open mode, which break the build, also disable strict aliasing and fixup some other warnings. Now builds on both 32-bit and 64-bit fedora systems. Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Tom Zanussi <tzanussi@gmail.com> LKML-Reference: <new-submission> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf probe: Use %td for pointer arithmetic resultArnaldo Carvalho de Melo2011-01-311-1/+1
| | | | | | | | | | | | | | | | | | | | %td is for ptrdiff_t, avoiding this warning on 32-bit: cc1: warnings being treated as errors builtin-probe.c: In function ‘opt_set_filter’: builtin-probe.c:176:4: error: format ‘%ld’ expects type ‘long int’, but argument 3 has type ‘int’ Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.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> Cc: Tom Zanussi <tzanussi@gmail.com> LKML-Reference: <new-submission> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf top: Introduce slang based TUIArnaldo Carvalho de Melo2011-01-315-8/+189
| | | | | | | | | | | | | | | | | | | | | | | Disabled by default as there are features found in the stdio based one that aren't implemented, like live annotation, filtering knobs data entry. Annotation hopefully will get somehow merged with the 'perf annotate' code. To use it: perf top --tui Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Tom Zanussi <tzanussi@gmail.com> LKML-Reference: <new-submission> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf tools: Don't fallback to setup_pager unconditionallyArnaldo Carvalho de Melo2011-01-314-7/+9
| | | | | | | | | | | | | | Because in tools like 'top' we don't want the pager. Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Tom Zanussi <tzanussi@gmail.com> LKML-Reference: <new-submission> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf top: Move display agnostic routines to util/top.[ch]Arnaldo Carvalho de Melo2011-01-314-345/+418
| | | | | | | | | | | | | | Paving the way for a slang browser a la 'perf report --tui'. Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Tom Zanussi <tzanussi@gmail.com> LKML-Reference: <new-submission> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf evlist: Store pointer to the cpu and thread mapsArnaldo Carvalho de Melo2011-01-318-119/+148
| | | | | | | | | | | | | | | | | | | | | | | | | | | | So that we don't have to pass it around to the several methods that needs it, simplifying usage. There is one case where we don't have the thread/cpu map in advance, which is in the parsing routines used by top, stat, record, that we have to wait till all options are parsed to know if a cpu or thread list was passed to then create those maps. For that case consolidate the cpu and thread map creation via perf_evlist__create_maps() out of the code in top and record, while also providing a perf_evlist__set_maps() for cases where multiple evlists share maps or for when maps that represent CPU sockets, for instance, get crafted out of topology information or subsets of threads in a particular application are to be monitored, providing more granularity in specifying which cpus and threads to monitor. Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Tom Zanussi <tzanussi@gmail.com> LKML-Reference: <new-submission> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf evlist: Move evlist methods to evlist.cArnaldo Carvalho de Melo2011-01-304-139/+158
| | | | | | | | | | | | | | | | They were on evsel.c because they came from refactoring existing evsel methods, so, to make reviewing the changes easier, I kept it there, now its a plain move. Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Tom Zanussi <tzanussi@gmail.com> LKML-Reference: <new-submission> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf tools: Initial python bindingArnaldo Carvalho de Melo2011-01-304-1/+966
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | First clarifying that this kind of binding is not a replacement or an equivalent to the 'perf script' way of using python with perf. The 'perf script' way is to process events and look at a given script for some python function that matches the events to pass each event for processing. This is a python module, i.e. everything is driven from the python script, that merely uses "import perf" or "from perf import". perf script is focused on tracepoints, this binding is focused on profiling as an initial target. More work is needed to make available tracepoint specific variables as event variables accessible via this binding. There is one example of such usage model, in tools/perf/python/twatch.py, a tool to watch "cycles" events together with task (fork, exit) and comm perf events. For now, due to me not being able to grok how python distutils cope with building C extensions outside the sources dir the install target just builds it, I'm using it as: [root@emilia linux]# export PYTHONPATH=~acme/git/build/perf/lib.linux-x86_64-2.6/ [root@emilia linux]# tools/perf/python/twatch.py cpu: 4, pid: 30126, tid: 30126 { type: mmap, pid: 30126, tid: 30126, start: 0x4, length: 0x82e9ca03, offset: 0, filename: } cpu: 6, pid: 47, tid: 47 { type: mmap, pid: 47, tid: 47, start: 0x6, length: 0xbef87c36, offset: 0, filename: } cpu: 1, pid: 0, tid: 0 { type: mmap, pid: 0, tid: 0, start: 0x1, length: 0x775d1904, offset: 0, filename: } cpu: 7, pid: 0, tid: 0 { type: mmap, pid: 0, tid: 0, start: 0x7, length: 0xc750aeb6, offset: 0, filename: } cpu: 5, pid: 2255, tid: 2255 { type: mmap, pid: 2255, tid: 2255, start: 0x5, length: 0x76669635, offset: 0, filename: } cpu: 0, pid: 0, tid: 0 { type: mmap, pid: 0, tid: 0, start: 0, length: 0x6422ef6b, offset: 0, filename: } cpu: 2, pid: 2255, tid: 2255 { type: mmap, pid: 2255, tid: 2255, start: 0x2, length: 0xe078757a, offset: 0, filename: } cpu: 1, pid: 5769, tid: 5769 { type: fork, pid: 30127, ppid: 5769, tid: 30127, ptid: 5769, time: 103893991270534} cpu: 6, pid: 30127, tid: 30127 { type: comm, pid: 30127, tid: 30127, comm: ls } cpu: 6, pid: 30127, tid: 30127 { type: exit, pid: 30127, ppid: 30127, tid: 30127, ptid: 30127, time: 103893993273024} The first 8 mmap events in this 8 way machine are a mistery that is still being investigated. More of the tools/perf/util/ APIs will be exposed via this python binding as the need arises. For now the focus is on creating events and processing them, symbol resolution is an obvious next step, with tracepoint variables as a close second step. Cc: Clark Williams <williams@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Tom Zanussi <tzanussi@gmail.com> LKML-Reference: <new-submission> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf tools: Kill event_t typedef, use 'union perf_event' insteadArnaldo Carvalho de Melo2011-01-2927-439/+475
| | | | | | | | | | | | | | | | And move the event_t methods to the perf_event__ too. No code changes, just namespace consistency. Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Tom Zanussi <tzanussi@gmail.com> LKML-Reference: <new-submission> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf tools: Rename 'struct sample_data' to 'struct perf_sample'Arnaldo Carvalho de Melo2011-01-2918-72/+72
| | | | | | | | | | | | | | Making the namespace more uniform. Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Tom Zanussi <tzanussi@gmail.com> LKML-Reference: <new-submission> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf top: Switch to non overwrite modeArnaldo Carvalho de Melo2011-01-291-4/+9
| | | | | | | | | | | | | | | Just like 'perf record'. Warn the user when PERF_RECORD_LOST events happen. Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Tom Zanussi <tzanussi@gmail.com> LKML-Reference: <new-submission> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf evlist: Support non overwrite mode in perf_evlist__read_on_cpuArnaldo Carvalho de Melo2011-01-293-15/+22
| | | | | | | | | | | | | | | | I.e. stash the overwrite mode in struct perf_evlist and act accordingly in perf_evlist__read_on_cpu, not checking for overwrites and touching the tail after consuming one event, like perf record does, for instance. Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Tom Zanussi <tzanussi@gmail.com> LKML-Reference: <new-submission> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf events: Account PERF_RECORD_LOST events in event__processArnaldo Carvalho de Melo2011-01-291-0/+2
| | | | | | | | | | | | | | | | | | | | | | | Right now this function is only used by perf top, that uses PROT_READ only, i.e. overwrite mode, so no PERF_RECORD_LOST events are generated, but don't forget those events. The patch that moved this out of perf top was made so that this routine could be used by 'perf probe' in the uprobes patchset, so perhaps there they need to check for LOST events and warn the user, as will be done in the following patches that will switch 'perf top' to non overwrite mode (mmap with PROT_READ|PROT_WRITE). Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com> Cc: Stephane Eranian <eranian@google.com> Cc: Tom Zanussi <tzanussi@gmail.com> LKML-Reference: <new-submission> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf record: No need to check for overwritesArnaldo Carvalho de Melo2011-01-291-19/+3Star
| | | | | | | | | | | | | | | | | As we open the mmap with (PROT_READ | PROT_WRITE), signalling the kernel with perf_mmap__write_tail() when consuming data, so the kernel will not overwrite. Suggested-by: Peter Zijlstra <peterz@infradead.org> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Tom Zanussi <tzanussi@gmail.com> LKML-Reference: <new-submission> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf test: Fix return values checkingHan Pingtian2011-01-281-3/+3
| | | | | | | | | Fixing some cut'n'paste mistakes. LKML-Reference: <20110124233900.GA3443@epc900.nay.redhat.com> Signed-off-by: Han Pingtian <phan@redhat.com> [ committer note: I had already removed the CPU_ALLOC calls ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf probe: Add filters support for available functionsMasami Hiramatsu2011-01-284-21/+32
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add filters support for available function list. Default filter is "!_*" for filtering out local-purpose symbols. e.g.: # perf probe --filter="add*" -F add_disk add_disk_randomness add_input_randomness add_interrupt_randomness add_memory add_page_to_unevictable_list add_page_wait_queue ... Cc: 2nddept-manager@sdl.hitachi.co.jp Cc: Chase Douglas <chase.douglas@canonical.com> Cc: Franck Bui-Huu <fbuihuu@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com> Cc: Steven Rostedt <rostedt@goodmis.org> LKML-Reference: <20110120141545.25915.85930.stgit@ltc236.sdl.hitachi.co.jp> Signed-off-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf probe: Add variable filter supportMasami Hiramatsu2011-01-284-27/+90
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add filters support for available variable list. Default filter is "!__k???tab_*&!__crc_*" for filtering out automatically generated symbols. The format of filter rule is "[!]GLOBPATTERN", so you can use wild cards. If the filter rule starts with '!', matched variables are filter out. e.g.: # perf probe -V schedule --externs --filter=cpu* Available variables at schedule @<schedule+0> cpumask_var_t cpu_callout_mask cpumask_var_t cpu_core_map cpumask_var_t cpu_isolated_map cpumask_var_t cpu_sibling_map int cpu_number long unsigned int* cpu_bit_bitmap ... Cc: 2nddept-manager@sdl.hitachi.co.jp Cc: Chase Douglas <chase.douglas@canonical.com> Cc: Franck Bui-Huu <fbuihuu@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com> Cc: Steven Rostedt <rostedt@goodmis.org> LKML-Reference: <20110120141539.25915.43401.stgit@ltc236.sdl.hitachi.co.jp> Signed-off-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> [ committer note: Removed the elf.h include as it was fixed up in e80711c] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf tools: Add strfilter for general purpose string filterMasami Hiramatsu2011-01-283-0/+250
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add strfilter for general purpose string filter. Every filter rules are descrived by glob matching pattern and '!' prefix which means Logical NOT. A strfilter consists of those filter rules connected with '&' and '|'. A set of rules can be folded by using '(' and ')'. It also accepts spaces around rules and those operators. Format: <rule> ::= <glob-exp> | "!" <rule> | <rule> <op> <rule> | "(" <rule> ")" <op> ::= "&" | "|" e.g.: "(add* | del*) & *timer" filter rules pass strings which start with add or del and end with timer. This will be used by perf probe --filter. Changes in V2: - Fix to check result of strdup() and strfilter__alloc(). - Encapsulate and simplify interfaces as like regex(3). Cc: 2nddept-manager@sdl.hitachi.co.jp Cc: Franck Bui-Huu <fbuihuu@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com> Cc: Steven Rostedt <rostedt@goodmis.org> LKML-Reference: <20110120141530.25915.12673.stgit@ltc236.sdl.hitachi.co.jp> Signed-off-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf evsel: Introduce perf_evsel__{in,ex}itArnaldo Carvalho de Melo2011-01-244-15/+41
| | | | | | | | | | | | | | | | | Out of the {con,des}structor, as in interpreted language bindings we will need to go back from the wrapper object to the real thing. In that case using container_of will save us to have an extra pointer in the perf_evsel struct. Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Tom Zanussi <tzanussi@gmail.com> LKML-Reference: <new-submission> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf tools: Move event__parse_sample to evsel.cArnaldo Carvalho de Melo2011-01-247-140/+134Star
| | | | | | | | | | | | | | | | | To avoid linking more stuff in the python binding I'm working on, future csets will make the sample type be taken from the evsel itself, but for that we need to first have one file per cpu and per sample_type, not a single perf.data file. Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Tom Zanussi <tzanussi@gmail.com> LKML-Reference: <new-submission> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf threads: Move thread_map to separate fileArnaldo Carvalho de Melo2011-01-2410-71/+86
| | | | | | | | | | | | | | | | | To untangle it from struct thread handling, that is tied to symbols, etc. Right now in the python bindings I'm working on I need just a subset of the util/ files, untangling it allows me to do that. Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Tom Zanussi <tzanussi@gmail.com> LKML-Reference: <new-submission> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf tools: Pass the struct opt to the wildcard parsing routineArnaldo Carvalho de Melo2011-01-241-9/+11
| | | | | | | | | | | | | | | | | | | It is needed because it will call parse_event for each tracepoint name that matches, and we pass the perf_evlist via opt->value. Problem introduced in 4503fdd where my assumption about opt being always non NULL made me not look at callers of parse_events outside builtin-*.c. Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Tom Zanussi <tzanussi@gmail.com> LKML-Reference: <new-submission> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf record: auto detect when stdout is a pipeFranck Bui-Huu2011-01-241-12/+20
| | | | | | | | | | | | | | This patch gives the ability to 'perf record' to detect when its stdout has been redirected to a pipe. There's now no more need to add '-o -' switch in this case. However '-o <path>' option has always precedence, that is if specified and stdout has been connected via a pipe then the output will go into the specified output. LKML-Reference: <m3ipxo966i.fsf@gmail.com> Signed-off-by: Franck Bui-Huu <fbuihuu@gmail.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf probe: Add --funcs to show available functions in symtabMasami Hiramatsu2011-01-244-3/+99
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add --funcs to show available functions in symtab. Originally this feature came from Srikar's uprobes patches ( http://lkml.org/lkml/2010/8/27/244 ) e.g. ... __ablkcipher_walk_complete __absent_pages_in_range __account_scheduler_latency __add_pages __alloc_pages_nodemask __alloc_percpu __alloc_reserved_percpu __alloc_skb __alloc_workqueue_key __any_online_cpu __ata_ehi_push_desc ... This also supports symbols in module, e.g. ... cleanup_module cpuid_maxphyaddr emulate_clts emulate_instruction emulate_int_real emulate_invlpg emulator_get_dr emulator_set_dr emulator_task_switch emulator_write_emulated emulator_write_phys fx_init ... Original-patch-from: Srikar Dronamraju <srikar@linux.vnet.ibm.com> Cc: 2nddept-manager@sdl.hitachi.co.jp Cc: Franck Bui-Huu <fbuihuu@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com> Cc: Steven Rostedt <rostedt@goodmis.org> LKML-Reference: <20110113124611.22426.10835.stgit@ltc236.sdl.hitachi.co.jp> Signed-off-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> [ committer note: Add missing elf.h for STB_GLOBAL that broke a RHEL4 build ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf probe: Enable to put probe inline function call siteMasami Hiramatsu2011-01-241-8/+48
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Enable to put probe inline function call site. This will increase line-based probe-ability. <Without this patch> $ ./perf probe -L schedule:48 <schedule:48> pre_schedule(rq, prev); 50 if (unlikely(!rq->nr_running)) idle_balance(cpu, rq); put_prev_task(rq, prev); next = pick_next_task(rq); 56 if (likely(prev != next)) { sched_info_switch(prev, next); trace_sched_switch_out(prev, next); perf_event_task_sched_out(prev, next); <With this patch> $ ./perf probe -L schedule:48 <schedule:48> 48 pre_schedule(rq, prev); 50 if (unlikely(!rq->nr_running)) 51 idle_balance(cpu, rq); 53 put_prev_task(rq, prev); 54 next = pick_next_task(rq); 56 if (likely(prev != next)) { 57 sched_info_switch(prev, next); 58 trace_sched_switch_out(prev, next); 59 perf_event_task_sched_out(prev, next); Cc: 2nddept-manager@sdl.hitachi.co.jp Cc: Franck Bui-Huu <fbuihuu@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com> Cc: Steven Rostedt <rostedt@goodmis.org> LKML-Reference: <20110113124604.22426.48873.stgit@ltc236.sdl.hitachi.co.jp> Signed-off-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf probe: Introduce lines walker interfaceMasami Hiramatsu2011-01-241-154/+167
| | | | | | | | | | | | | | | | | Introduce die_walk_lines() for walking on the line list of given die, and use it in line_range finder and probe point finder. Cc: 2nddept-manager@sdl.hitachi.co.jp Cc: Franck Bui-Huu <fbuihuu@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com> Cc: Steven Rostedt <rostedt@goodmis.org> LKML-Reference: <20110113124558.22426.48170.stgit@ltc236.sdl.hitachi.co.jp> Signed-off-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> [ committer note: s/%ld/%zd/ for a size_t nlines var that broke f14 x86 build] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf top: Add native_safe_halt to skip symbolsArnaldo Carvalho de Melo2011-01-221-0/+1
| | | | | | | | | | | | Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Tom Zanussi <tzanussi@gmail.com> LKML-Reference: <new-submission> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf callchain: Don't give arbitrary gender to callchain tree nodesFrederic Weisbecker2011-01-222-6/+6
| | | | | | | | | | | | | | Some little callchain tree nodes shyly asked me if they can have sisters. How cute! Cc: Ingo Molnar <mingo@elte.hu> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> LKML-Reference: <1294977121-5700-5-git-send-email-fweisbec@gmail.com> Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf callchain: Rename register_callchain_param into callchain_register_paramFrederic Weisbecker2011-01-223-4/+4
| | | | | | | | | | | To make the callchain API naming more consistent. Cc: Ingo Molnar <mingo@elte.hu> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> LKML-Reference: <1294977121-5700-4-git-send-email-fweisbec@gmail.com> Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf callchain: Rename cumul_hits into callchain_cumul_hitsFrederic Weisbecker2011-01-224-8/+8
| | | | | | | | | | | | That makes the callchain API naming more consistent and reduce potential naming clashes. Cc: Ingo Molnar <mingo@elte.hu> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> LKML-Reference: <1294977121-5700-3-git-send-email-fweisbec@gmail.com> Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf callchain: Feed callchains into a cursorFrederic Weisbecker2011-01-227-139/+204
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The callchains are fed with an array of a fixed size. As a result we iterate over each callchains three times: - 1st to resolve symbols - 2nd to filter out context boundaries - 3rd for the insertion into the tree This also involves some pairs of memory allocation/deallocation everytime we insert a callchain, for the filtered out array of addresses and for the array of symbols that comes along. Instead, feed the callchains through a linked list with persistent allocations. It brings several pros like: - Merge the 1st and 2nd iterations in one. That was possible before but in a way that would involve allocating an array slightly taller than necessary because we don't know in advance the number of context boundaries to filter out. - Much lesser allocations/deallocations. The linked list keeps persistent empty entries for the next usages and is extendable at will. - Makes it easier for multiple sources of callchains to feed a stacktrace together. This is deemed to pave the way for cfi based callchains wherein traditional frame pointer based kernel stacktraces will precede cfi based user ones, producing an overall callchain which size is hardly predictable. This requirement makes the static array obsolete and makes a linked list based iterator a much more flexible fit. Basic testing on a big perf file containing callchains (~ 176 MB) has shown a throughput gain of about 11% with perf report. Cc: Ingo Molnar <mingo@elte.hu> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> LKML-Reference: <1294977121-5700-2-git-send-email-fweisbec@gmail.com> Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf test: Add test for the evlist mmap routinesArnaldo Carvalho de Melo2011-01-221-2/+169
| | | | | | | | | | | | | | | | | | | | | | This test will generate random numbers of calls to some getpid syscalls, then establish an mmap for a group of events that are created to monitor these syscalls. It will receive the events, using mmap, use its PERF_SAMPLE_ID generated sample.id field to map back to its respective perf_evsel instance. Then it checks if the number of syscalls reported as perf events by the kernel corresponds to the number of syscalls made. Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Tom Zanussi <tzanussi@gmail.com> LKML-Reference: <new-submission> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf evlist: Steal mmap reading routine from 'perf top'Arnaldo Carvalho de Melo2011-01-223-53/+69
| | | | | | | | | | | | | | | Will be used in the upcoming 'perf test' entry for the evlist mmap routines. Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Tom Zanussi <tzanussi@gmail.com> LKML-Reference: <new-submission> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf test: check if cpu_map__new() return NULLHan Pingtian2011-01-221-3/+3
| | | | | | | | | | | | It looks like we should check if cpus is NULL after cpus = cpu_map__new(NULL); in test__open_syscall_event_on_all_cpus(). LKML-Reference: <20110114230050.GA7011@localhost> Signed-off-by: Han Pingtian <phan@redhat.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf test: Check counts on all cpus in test__open_syscall_event_on_all_cpusArnaldo Carvalho de Melo2011-01-221-3/+5
| | | | | | | | | | | | | | | We were bailing out after the first count mismatch, do it in all to see if only some CPUs are not getting the expected number of events. Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Tom Zanussi <tzanussi@gmail.com> LKML-Reference: <new-submission> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf tools: Add missing cpu_map__delete()Arnaldo Carvalho de Melo2011-01-222-1/+6
| | | | | | | | | | | | Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Tom Zanussi <tzanussi@gmail.com> LKML-Reference: <new-submission> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf record: Use perf_evlist__mmapArnaldo Carvalho de Melo2011-01-221-48/+11Star
| | | | | | | | | | | | | | | | There is more stuff that can go to the perf_ev{sel,list} layer, like detecting if sample_id_all is available, etc, but lets try using this in 'perf test' first. Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Tom Zanussi <tzanussi@gmail.com> LKML-Reference: <new-submission> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf evlist: Move the mmap array from perf_evselArnaldo Carvalho de Melo2011-01-225-77/+201
| | | | | | | | | | | | | | | | | | | | | | | | | | Adopting the new model used in 'perf record', where we don't have a map per thread per cpu, instead we have an mmap per cpu, established on the first fd for that cpu and ask the kernel using the PERF_EVENT_IOC_SET_OUTPUT ioctl to send events for the other fds on that cpu for the one with the mmap. The methods moved from perf_evsel to perf_evlist, but for easing review they were modified in place, in evsel.c, the next patch will move the migrated methods to evlist.c. With this 'perf top' now uses the same mmap model used by 'perf record' and the next patches will make 'perf record' use these new routines, establishing a common codebase for both tools. Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Tom Zanussi <tzanussi@gmail.com> LKML-Reference: <new-submission> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf record: Move perf_mmap__write_tail to perf.hArnaldo Carvalho de Melo2011-01-222-12/+13
| | | | | | | | | | | | | | | Close to perf_mmap__read_head() and the perf_mmap struct definition. This is useful for any recorder, and we will need it in 'perf test'. Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Tom Zanussi <tzanussi@gmail.com> LKML-Reference: <new-submission> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf record: Use struct perf_mmap and helpersArnaldo Carvalho de Melo2011-01-221-21/+4Star
| | | | | | | | | | | | | | | Paving the way to using perf_evsel->mmap, do this to reduce the patch noise in the next ones. Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Tom Zanussi <tzanussi@gmail.com> LKML-Reference: <new-submission> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf evsel: Introduce mmap supportArnaldo Carvalho de Melo2011-01-226-66/+107
| | | | | | | | | | | | | | Out of the code in 'perf top'. Record is next in line. Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Tom Zanussi <tzanussi@gmail.com> LKML-Reference: <new-submission> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf record: Use perf_evsel__openArnaldo Carvalho de Melo2011-01-221-120/+113Star
| | | | | | | | | | | | | | | Now its time to factor out the mmap handling bits into the perf_evsel class. Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Tom Zanussi <tzanussi@gmail.com> LKML-Reference: <new-submission> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf top: Use perf_evsel__openArnaldo Carvalho de Melo2011-01-221-50/+42Star
| | | | | | | | | | | | | | | | | | | Now that it handles group_fd and inherit we can use it, sharing it with stat. Next step: 'perf record' should use, then move the mmap_array out of ->priv and into perf_evsel, with top and record sharing this, and at the same time, write a 'perf test' stress test. Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Tom Zanussi <tzanussi@gmail.com> LKML-Reference: <new-submission> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf evsel: Allow specifying if the inherit bit should be setArnaldo Carvalho de Melo2011-01-224-14/+16
| | | | | | | | | | | | | | | As this is a per-cpu attribute, we can't set it up in advance and use it for all the calls. Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Tom Zanussi <tzanussi@gmail.com> LKML-Reference: <new-submission> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf evsel: Support event groupsArnaldo Carvalho de Melo2011-01-224-18/+27
| | | | | | | | | | | | | | | | | The perf_evsel__open now have an extra boolean argument specifying if event grouping is desired. The first file descriptor created on a CPU becomes the group leader. Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Tom Zanussi <tzanussi@gmail.com> LKML-Reference: <new-submission> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf evlist: Adopt the pollfd arrayArnaldo Carvalho de Melo2011-01-224-28/+33
| | | | | | | | | | | | | | | Allocating just the space needed for nr_cpus * nr_threads * nr_evsels, not the MAX_NR_CPUS and counters. LKML-Reference: <new-submission> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Tom Zanussi <tzanussi@gmail.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf evsel: Introduce perf_evlistArnaldo Carvalho de Melo2011-01-2211-118/+180
| | | | | | | | | | | | | | | | | | | | Killing two more perf wide global variables: nr_counters and evsel_list as a list_head. There are more operations that will need more fields in perf_evlist, like the pollfd for polling all the fds in a list of evsel instances. Use option->value to pass the evsel_list to parse_{events,filters}. LKML-Reference: <new-submission> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Tom Zanussi <tzanussi@gmail.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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