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* perf report: Update documentation for sort keysNamhyung Kim2013-01-242-5/+37
| | | | | | | | | | | | | | | | Add description of sort keys to the perf-report document and also add missing cpu and srcline keys to the command line help string. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Acked-by: Jiri Olsa <jolsa@redhat.com> Cc: David Ahern <dsahern@gmail.com> 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> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1356599507-14226-11-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf sort: Separate out branch stack specific sort keysNamhyung Kim2013-01-242-14/+58
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Current perf report gets segmentation fault when a branch stack specific sort key is provided by --sort option to a perf.data file which contains no branch infomation. It's because those sort keys reference branch info of a hist entry unconditionally. Maybe we can change it checks whether such branch info is valid or not. But if the branch stacks are not recorded, it'd be nop. Thus it'd be better to make those keys are unselectable. This patch separates those keys to a different dimension array, so that if user passes such a key to a file which has no branch stack will get following message rather than a segfault. Error: Invalid --sort key: `symbol_from' Signed-off-by: Namhyung Kim <namhyung@kernel.org> Reported-by: Stefan Beller <stefanbeller@googlemail.com> Acked-by: Jiri Olsa <jolsa@redhat.com> Cc: David Ahern <dsahern@gmail.com> 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> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1356599507-14226-10-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf sort: Clean up sort__first_dimension settingNamhyung Kim2013-01-241-24/+2Star
| | | | | | | | | | | | | | | | It doesn't need to compare to every sort key names since the index already has the required information. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Acked-by: Jiri Olsa <jolsa@redhat.com> Cc: David Ahern <dsahern@gmail.com> 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> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1356599507-14226-9-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf sort: Calculate parent column width tooNamhyung Kim2013-01-241-0/+3
| | | | | | | | | | | | | | | | | | When hists__calc_col_len() called, most of column length are refreshed but it missed parent column. So if the parent sort key was used along with other keys rests will be misalinged since parent has no proper column width. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Acked-by: Jiri Olsa <jolsa@redhat.com> Cc: David Ahern <dsahern@gmail.com> 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> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1356599507-14226-6-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf sort: Align cpu column to rightNamhyung Kim2013-01-241-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Since cpu number is a natural number, it'd be more appropriate aligning it to right. Before: # Overhead CPU Command: Pid Shared Object # ........ ... ................. ..................... # 8.91% 8 gnome-shell: 1497 perf-1497.map 8.90% 7 gnome-shell: 1497 perf-1497.map 8.86% 9 gnome-shell: 1497 perf-1497.map 8.83% 6 gnome-shell: 1497 perf-1497.map 8.81% 10 gnome-shell: 1497 perf-1497.map 7.44% 5 gnome-shell: 1497 perf-1497.map 6.20% 3 gnome-shell: 1497 perf-1497.map 5.10% 0 gnome-shell: 1497 perf-1497.map After: # Overhead CPU Command: Pid Shared Object # ........ ... ................. ..................... # 8.91% 8 gnome-shell: 1497 perf-1497.map 8.90% 7 gnome-shell: 1497 perf-1497.map 8.86% 9 gnome-shell: 1497 perf-1497.map 8.83% 6 gnome-shell: 1497 perf-1497.map 8.81% 10 gnome-shell: 1497 perf-1497.map 7.44% 5 gnome-shell: 1497 perf-1497.map 6.20% 3 gnome-shell: 1497 perf-1497.map 5.10% 0 gnome-shell: 1497 perf-1497.map Signed-off-by: Namhyung Kim <namhyung@kernel.org> Acked-by: Jiri Olsa <jolsa@redhat.com> Cc: David Ahern <dsahern@gmail.com> 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> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1356599507-14226-5-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf sort: Fix --sort pid outputNamhyung Kim2013-01-241-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | The "pid" sort key prints "Command: Pid" output but it's misaligned. It's because of the offset of 6 was added to the column length during the calculation in order to reserve an space for Pid part but it isn't honored when printed. The output before this patch was like this: # Overhead Command: Pid Shared Object # ........ ............. ................. # 99.70% noploop:17814 noploop 0.29% noploop:17814 [kernel.kallsyms] 0.01% noploop:17814 ld-2.15.so Fix it by subtracting 6 for printing comm part. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Acked-by: Jiri Olsa <jolsa@redhat.com> Cc: David Ahern <dsahern@gmail.com> 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> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1356599507-14226-4-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf sort: Get rid of unnecessary __maybe_unusedNamhyung Kim2013-01-241-7/+4Star
| | | | | | | | | | | | | | | | Some functions have set __maybe_unused on its arguments that are used actually. Remove them. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Acked-by: Jiri Olsa <jolsa@redhat.com> Cc: David Ahern <dsahern@gmail.com> 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> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1356599507-14226-3-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf sort: Move misplaced sort entry functionsNamhyung Kim2013-01-241-59/+60
| | | | | | | | | | | | | | | | | | Some functions are misplaced along with other entries. Move them to a right place so that it can be found together with related functions. No functional change intended. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Acked-by: Jiri Olsa <jolsa@redhat.com> Cc: David Ahern <dsahern@gmail.com> 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> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1356599507-14226-2-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf probe: Allow of casting an array of char to stringHyeoncheol Lee2013-01-241-5/+5
| | | | | | | | | | | | | | | | | Before casting a type of a variable to string, convert_variable_type() confirms that the type is a pointer or an array. then if it is a pointer to char, it is casted to string. but in case of an array of char, it isn't Signed-off-by: H.C. Lee <hyc.lee@gmail.com> Acked-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com> Link: http://lkml.kernel.org/r/CANFS6bb75e8a_UtyAD9yF73hfXDy0N8tSjDz=a+Vna=Y8ORMHg@mail.gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf tools: Add anonymous huge page recognitionJoshua Zhu2013-01-241-1/+2
| | | | | | | | | | | | | | | | | | | | | | | Judging anonymous memory's vm_area_struct, perf_mmap_event's filename will be set to "//anon" indicating this vma belongs to anonymous memory. Once hugepage is used, vma's vm_file points to hugetlbfs. In this way, this vma will not be regarded as anonymous memory by is_anon_memory() in perf user space utility. Signed-off-by: Joshua Zhu <zhu.wen-jie@hp.com> Cc: Akihiro Nagai <akihiro.nagai.hw@hitachi.com> Cc: Andi Kleen <andi@firstfloor.org> Cc: David Ahern <dsahern@gmail.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Joshua Zhu <zhu.wen-jie@hp.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1357363797-3550-1-git-send-email-zhu.wen-jie@hp.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf bench: Flush stdout before starting bench suiteNamhyung Kim2013-01-241-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | perf bench prints header message for bench suite before starting the benchmark. However if the stdout is redirected to a file and bench suite forks child processes this (and possibly other debugging messages too) will be repeated multiple times. $ perf bench sched messaging # Running sched/messaging benchmark... # 20 sender and receiver processes per group # 10 groups == 400 processes run Total time: 0.100 [sec] $ perf bench sched messaging > result.txt $ wc -l result.txt 391 In this file, there were so many "Running sched/messaging benchmark..." lines. This was because stdout is converted to fully-buffered due to the redirection and inherited child processes. Other lines are printed after reaping all those tasks. So fix it by flushing stdout before starting bench suites. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Acked-by: Hitoshi Mitake <h.mitake@gmail.com> Cc: Hitoshi Mitake <mitake@dcl.info.waseda.ac.jp> 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/1357637966-8216-1-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf symbols: Include elf.h header regardless LIBELF_SUPPORTNamhyung Kim2013-01-243-5/+1Star
| | | | | | | | | | | | | | | | | | | | The elf.h header file is used for NO_LIBELF build too so it should be included anyway. Also remove duplicated include of the header file in symbol-*.c. This patch fixes following build error on NO_LIBELF build: CC tests/hists_link.o tests/hists_link.c: In function ‘setup_fake_machine’: tests/hists_link.c:132:8: error: ‘STB_GLOBAL’ undeclared (first use in this function) tests/hists_link.c:132:8: note: each undeclared identifier is reported only once for each function it appears in Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: David Ahern <dsahern@gmail.com> 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/1356679009-32122-1-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf tools: Fix possible (unlikely) buffer overflowThomas Jarosch2013-01-241-1/+1
| | | | | | | | | | | | | | cppcheck reported: [tools/perf/util/sysfs.c:50]: (error) Width 4096 given in format string (no. 1) is larger than destination buffer 'sysfs_mountpoint[4096]', use %4095s to prevent overflowing it -> All other places in the kernel that use STR(PATH_MAX) have a buffer size of PATH_MAX + 1. Signed-off-by: Thomas Jarosch <thomas.jarosch@intra2net.com> Link: http://lkml.kernel.org/r/50D9D30B.8090002@intra2net.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf tools: Fix GNU make v3.80 compatibility issueAl Cooper2013-01-241-3/+3
| | | | | | | | | | | | | | | | | | | According to Documentation/Changes, the kernel should be buildable with GNU make 3.80+. tools/perf/config/utilities.mak contains the "$(or" construct, which requires make 3.81. This causes "make" to fail on systems with GNU make 3.80. Replace "$(or" with an equivalent "$(if" expression, to restore backward compatibility. Also fix an issue where _get_attempt was called with only one argument. This prevented the error message from printing the name of the variable that can be used to fix the problem. Signed-off-by: Al Cooper <alcooperx@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/1357680156-15520-1-git-send-email-alcooperx@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* tools lib traceevent: Add copyright headerJon Stanley2013-01-241-0/+19
| | | | | | | | | | | Adding a missing copyright header to parse-utils.c. Assuminng that the license is LGPL like the rest of the trace-cmd library code. Signed-off-by: Jon Stanley <jonstanley@gmail.com> Acked-by: Steven Rostedt <rostedt@goodmis.org> Cc: Steven Rostedt <rostedt@goodmis.org> Link: http://lkml.kernel.org/r/1347127251-4695-1-git-send-email-jonstanley@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* tools lib traceevent: Update FSF postal address to be URL's.Jon Stanley2013-01-245-10/+5Star
| | | | | | | | | | | | The FSF now prefers to use URL's in copyright headers rather than their postal address. This change updates the address to be <http://www.gnu.org/licenses> per http://www.gnu.org/licenses/gpl-howto.html Signed-off-by: Jon Stanley <jonstanley@gmail.com> Acked-by: Steven Rostedt <rostedt@goodmis.org> Cc: Steven Rostedt <rostedt@goodmis.org> Link: http://lkml.kernel.org/r/1347049967-3143-1-git-send-email-jonstanley@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* tools lib traceevent: test correct variable after allocationSasha Levin2013-01-241-1/+1
| | | | | | | | | | | | we've tested the wrong variable for allocation failure, fix it to test the right one. Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Steven Rostedt <rostedt@goodmis.org> Link: http://lkml.kernel.org/r/1356120062-2648-1-git-send-email-sasha.levin@oracle.com Signed-off-by: Sasha Levin <sasha.levin@oracle.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf ui/gtk: Setup browser window earlyNamhyung Kim2013-01-241-11/+11
| | | | | | | | | | | | | | | | | | The ui__error/warning functions use gtk infobar or statusbar and pr_* functions use statusbar too. But after perf gtk context created but those infobar and/or statusbar not yet set up, calling one of those functions will get a segment fault. Although current code has no problem, move these setting as early as possible so that it can prevent the segfault from future change. Signed-off-by: Namhyung Kim <namhyung@kernel.org> 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/1356078018-31905-3-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf ui/gtk: Factor out common browser routinesNamhyung Kim2013-01-244-223/+240
| | | | | | | | | | | | | | Separate out common codes for setting up a browser, and move report/hist browser codes into hists.c. The common codes can be used for annotation browser. Signed-off-by: Namhyung Kim <namhyung@kernel.org> 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/1356078018-31905-2-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf script: use ARRAY_SIZE instead of reinventing itSasha Levin2013-01-241-1/+1
| | | | | | | | | Signed-off-by: Sasha Levin <sasha.levin@oracle.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/1356030701-16284-11-git-send-email-sasha.levin@oracle.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf kmem: use ARRAY_SIZE instead of reinventing itSasha Levin2013-01-241-2/+1Star
| | | | | | | | | Signed-off-by: Sasha Levin <sasha.levin@oracle.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/1356030701-16284-8-git-send-email-sasha.levin@oracle.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf tools: remove redundant checks from _sort__sym_cmpSasha Levin2013-01-241-4/+2Star
| | | | | | | | | | | | | | | We already check that sym_l and sum_r are non-NULLs, no need to do it twice. Signed-off-by: Sasha Levin <sasha.levin@oracle.com> Acked-by: Namhyung Kim <namhyung@kernel.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> 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/1356030701-16284-12-git-send-email-sasha.levin@oracle.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf tests: Don't fail if a matching vmlinux isn't found, skip that testArnaldo Carvalho de Melo2013-01-241-1/+2
| | | | | | | | | | | | | | | | | Now that Jiri introduced TEST_SKIP, don't fail on the first test, just skip it. Requested-by: Ingo Molnar <mingo@kernel.org> 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@gmail.com> 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-wtgs8rd7fjwfhx72pv4la127@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf tests: Add return states enum for testsJiri Olsa2013-01-242-3/+18
| | | | | | | | | | | | | | | | | | | | Test can currently return one of 3 states: ok, fail, skip. The ok and fail states are self-explanatory. The skip state means that some of the conditions for running the test was not met, making it impossible to even run the test. For instance, if the hardware doesn't support the 'precise' level required by a test, it will be skipped. Signed-off-by: Jiri Olsa <jolsa@redhat.com> Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Link: http://lkml.kernel.org/n/tip-04vnsdndarctfb1eii5c9hcy@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf kvm: Initialize file_name var to fix segfaultArnaldo Carvalho de Melo2013-01-241-2/+1Star
| | | | | | | | | | | | | | | | | | | | | | | | | | | The 3786063 commit: perf kvm: Rename perf_kvm to perf_kvm_stat Moved the file_name from inside a local struct var that initialized some of its members, thus zero initializing the not explicitely initialized variables, one of which was 'file_name', to a standalone local variable, but forgot to initialize it explicitely to NULL, so it then got some undefined value, causing a segfault in strdup when it wasn't, by luck, zero. Fix it by explicitely initializing it to NULL. 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@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Xiao Guangrong <xiaoguangrong@linux.vnet.ibm.com> Link: http://lkml.kernel.org/n/tip-qo2jevp1bdcnh8khzdazs17s@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf machine: Simplify accessing the host machineArnaldo Carvalho de Melo2013-01-245-21/+5Star
| | | | | | | | | | | | | | | | | | | It is always there, no sense in calling a function named "perf_session__find_host_machine". Also no sense in checking if that function return is NULL, so ditch needless error handling. 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@gmail.com> 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-a6a3zx3afbrxo8p2zqm5mxo8@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf tests: Fix PYTHONPATH for python-use test tracepointsJiri Olsa2013-01-241-1/+1
| | | | | | | | | If there's not OUTPUT variable defined the PYTHONPATH ends up with /python. We need to remove the extra '/'. Signed-off-by: Jiri Olsa <jolsa@redhat.com> Link: http://lkml.kernel.org/n/tip-h1hzfyfcdxjnuq9fin2cjwlr@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf machine: Introduce struct machinesArnaldo Carvalho de Melo2013-01-249-81/+95
| | | | | | | | | | | | | | | | | | That consolidates the grouping of host + guests, isolating a bit more of functionality now centered on 'perf_session' that can be used independently in tools that don't need a 'perf_session' instance, but needs to have all the thread/map/symbol machinery. 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@gmail.com> 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-c700rsiphpmzv8klogojpfut@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf session: There is no need for a per session hists instanceArnaldo Carvalho de Melo2013-01-246-33/+34
| | | | | | | | | | | | | | | | | | | | It was being used just for its stats member, so ditch session->hists and use just what is needed, session->stats. This completes the move support multiple events in the hists layer, the last user of session->hists was 'perf diff' but Jiri Olsa has fixed that some time ago. 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@gmail.com> 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-pimk92kek8kcp4dmb1jakoro@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf hists: Rename hists__fprintf_nr_events to events_stats__fprintfArnaldo Carvalho de Melo2013-01-243-6/+6
| | | | | | | | | | | | | | | | | | As this function deals exclusively with hists->stats. Preparatory patch for removing the by now needless session->hists, that should be just session->stats. 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@gmail.com> 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-be0o8si9f1z40cwoa534f7me@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf record: Don't pass host machine to guest synthesizerArnaldo Carvalho de Melo2013-01-242-16/+4Star
| | | | | | | | | | | | | | | | | | | | | We were calling perf_session__process_machines(), that would first pass the struct machine associated with the host to the provided callback, perf_event__synthesize_guest_os() that would test if it was the host and if so wouldn't do anything. Ditch this contraption, just call directly machines__process with the list of guests. 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@gmail.com> 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-x65vsxgzg4dvo3zqohtrrb9o@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf header: Ensure read/write finished successfullyNamhyung Kim2013-01-241-27/+36
| | | | | | | | | | | | | | | Use readn instead of read and check return value of do_write. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Suggested-by: Arnaldo Carvalho de Melo <acme@ghostprotocols.net> Acked-by: Jiri Olsa <jolsa@redhat.com> 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> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1355726345-29553-4-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf tests: Check python path on attr and binding testNamhyung Kim2013-01-243-5/+8
| | | | | | | | | | | | | | | | | | | | | | | | | Current perf test code tries to execute python version 2 in order to test attributes on perf_event_open syscall. However it's not default python version anymore a system can have python v3 only or v2 with a different name (e.g. python2). So if there's no such python interpreter with the name 'python', the test would fail like this (yes, it's happened on my new archlinux laptop :). 13: struct perf_event_attr setup :sh: python: command not found FAILED! As we can pass name of the python interpreter on make, use it for the attr test also. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Acked-by: Jiri Olsa <jolsa@redhat.com> 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/1355729101-31317-1-git-send-email-namhyung@kernel.org [ committer note: Added the same mechanism to the python binding test ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf tests: Add event parsing test for '*:*' tracepointsJiri Olsa2013-01-241-0/+62
| | | | | | | | | | | | | | | | | | | | Adding event parsing test for '*:*' tracepoints. Checking the count matches all the tracepoints available plus current standard tracepoint perf_event_attr check. This test exposes warnings from traceevent lib about not being able to parse some tracepoints' format data. Exposing these messages in the automated test suite will probably speed up the fix ;-) Signed-off-by: Jiri Olsa <jolsa@redhat.com> Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1355749718-4355-4-git-send-email-jolsa@redhat.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf tools: Add support for wildcard in tracepoint system nameJiri Olsa2013-01-241-5/+46
| | | | | | | | | | | | | | | | | | | | | | | | | | Adding support for wildcards '*?" in the tracepoint system part. It's now possible to open all available tracepoints like: # perf stat -e '*:*' ls You might need to increase limit for open files via ulimit. If ftrace events tracepoints are configured in, the record command fails on above event selection because of them. The stat command disables counters that fails to open, the record command fails completely. We probably want to be smarter here. Signed-off-by: Jiri Olsa <jolsa@redhat.com> Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1355749718-4355-3-git-send-email-jolsa@redhat.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf tools: Add missing closedir in multi tracepoint processingJiri Olsa2013-01-241-0/+1
| | | | | | | | | | | | | | | We don't close 'events' directory when reading multiple tracepoint events. Adding missing closedir. Signed-off-by: Jiri Olsa <jolsa@redhat.com> Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1355749718-4355-2-git-send-email-jolsa@redhat.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf python: Fix breakage introduced by the test_attr infrastructureArnaldo Carvalho de Melo2013-01-243-2/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The test_attr infrastructure hooks on the sys_perf_event_open call, checking if a variable is set and if so calling a function to intercept calls and do the checking. But both the variable and the function aren't on objects that are linked on the python binding, breaking it: # perf test -v 15 15: Try 'use perf' in python, checking link problems : --- start --- Traceback (most recent call last): File "<stdin>", line 1, in <module> ImportError: /home/acme/git/build/perf//python/perf.so: undefined symbol: test_attr__enabled ---- end ---- Try 'use perf' in python, checking link problems: FAILED! # Fix it by moving the variable to one of the linked object files and providing a stub for the function in the python.o object, that is only linked in the python binding. Now 'perf test' is happy again: # perf test 15 15: Try 'use perf' in python, checking link problems : Ok # 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@gmail.com> 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-0rsca2kn44b38rgdpr3tz6n5@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf test: Check for linking problems in the python bindingArnaldo Carvalho de Melo2013-01-244-0/+32
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | It just will add the O= builddir to PYTHONPATH and try to 'use perf', which will, in verbose mode show the python backtrace with the missing symbols, such as in the problem fixed in the patch after this one: # perf test -v 15 15: Try 'use perf' in python, checking link problems : --- start --- Traceback (most recent call last): File "<stdin>", line 1, in <module> ImportError: /home/acme/git/build/perf//python/perf.so: undefined symbol: test_attr__enabled ---- end ---- Try 'use perf' in python, checking link problems: FAILED! # Loooong overdue, done. 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@gmail.com> 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-zmd2oq9gz6t1u145ub7qm2nv@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf evsel: Introduce perf_evsel__open_strerror methodArnaldo Carvalho de Melo2013-01-247-100/+68Star
| | | | | | | | | | | | | | | | | That consolidates the error messages in 'record', 'stat' and 'top', that now get a consistent set of messages and allow other tools to use the new method to report problems using whatever UI toolkit. 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@gmail.com> 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-1cudb7wl996kz7ilz83ctvhr@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf evsel: Introduce event fallback methodArnaldo Carvalho de Melo2013-01-244-37/+37
| | | | | | | | | | | | | | | | The only fallback right now is for HW cpu-cycles -> SW cpu-clock, that was done in the same way in both 'top' and 'record'. 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@gmail.com> 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-58l1mgibh9oa9m0pd3fasxa5@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf evsel: Do missing feature fallbacks in just one placeArnaldo Carvalho de Melo2013-01-246-90/+31Star
| | | | | | | | | | | | | | | | Instead of doing it in stat, top, record or any other tool that opens event descriptors. 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@gmail.com> 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-vr8hzph83d5t2mdlkf565h84@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf tests: Adjust some message log levels to help diagnosing problems in ↵Arnaldo Carvalho de Melo2013-01-241-9/+18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | attr tests Now we'll see the command being run and if it fails, the fields that had unexpected values and the expected values, example testing a problem in the next patch: # perf test -v 13 13: struct perf_event_attr setup : --- start --- SNIP running 'PERF_TEST_ATTR=/tmp/tmpDNIE6M /home/acme/bin/perf record -o /tmp/tmpDNIE6M/perf.data --group -e cycles,instructions kill >/dev/null 2>&1' ret 0 running 'PERF_TEST_ATTR=/tmp/tmpV5lKro /home/acme/bin/perf stat -o /tmp/tmpV5lKro/perf.data -dd kill >/dev/null 2>&1' ret 1 expected config=3, got 65540 expected exclude_guest=1, got 0 FAILED '/home/acme/libexec/perf-core/tests/attr/test-stat-detailed-2' - match failure ---- end ---- struct perf_event_attr setup: FAILED! # While in the past we would see at the '-v' level many more messages for the fields that matched, something we may want to see only in the '-vv' log level. Keeping the 'running' messages so that we can see the tools tests that succeeded so that we can compare it to the one that failed, helping pinpointing the command line switch combo that leads to the problem. 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@gmail.com> 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-9avmwxv5ipxyafwqxbk52ylg@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf test: Remove leftover temp file left by one of the attr testsArnaldo Carvalho de Melo2013-01-241-1/+1
| | | | | | | | | | | | | | | Instead of > /tmp/krava, direct it to /dev/null. 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@gmail.com> 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-oo4yhij2327u8ircz4d0y5p4@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf test: Add a test case for hists__{match,link}Namhyung Kim2013-01-244-0/+508
| | | | | | | | | | | | | | | | | | | | | | | | | As they are used from diff and event group report, add a test case to verify their behaviors. In this test I made a fake machine and two evsel. Each evsel got 10 samples (so hist entries) - 5 are common and the rests are not. So after hists__match() both of them will have 5 entries with pair set. And the second evsel has a collapsed entry so that the total number is 9 - I made it in order to simulate more realistic case. Thus after hists__link the first entry will have 14 entries - 5 are common (w/ pair), 5 are unmatch (w/o pair) and 4 are dummy (w/ pair). And the second entry will have 9 entries all have its pair. 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> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1355128197-18193-5-git-send-email-namhyung@kernel.org [ committer note: fixed up clashes with cset that moved methods to machine.h ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf diff: Use internal rb tree for compute resortNamhyung Kim2013-01-243-11/+23
| | | | | | | | | | | | | | | | There's no reason to run hists_compute_resort() using output tree. Convert it to use internal tree so that it can remove unnecessary _output_resort. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Acked-by: Jiri Olsa <jolsa@redhat.com> 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> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1355128197-18193-4-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf hists: Link hist entries before inserting to an output treeNamhyung Kim2013-01-242-60/+54Star
| | | | | | | | | | | | | | | | | | | | | | | | | | | For matching and/or linking hist entries, they need to be sorted by given sort keys. However current hists__match/link did this on the output trees, so that the entries in the output tree need to be resort before doing it. This looks not so good since we have trees for collecting or collapsing entries before passing them to an output tree and they're already sorted by the given sort keys. Since we don't need to print anything at the time of matching/linking, we can use these internal trees directly instead of bothering with double resort on the output tree. Its only user - at the time of this writing - perf diff can be easily converted to use the internal tree and can save some lines too by getting rid of unnecessary resorting codes. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Acked-by: Jiri Olsa <jolsa@redhat.com> 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> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1355128197-18193-3-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf hists: Exchange order of comparing items when collapsing histsNamhyung Kim2013-01-242-4/+10
| | | | | | | | | | | | | | | | | | When comparing entries for collapsing put the given entry first, and then the iterated entry. This is not the case of hist_entry__cmp() when called if given sort keys don't require collapsing. So change the order for the sake of consistency. It will be required for matching and/or linking multiple hist entries. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Acked-by: Jiri Olsa <jolsa@redhat.com> 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> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1355128197-18193-2-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* Merge tag 'perf-core-for-mingo' of ↵Ingo Molnar2013-01-2457-1519/+1483Star
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core Pull perf/core improvements and fixes from Arnaldo Carvalho de Melo: . perf build-id cache now can show DSOs present in a perf.data file that are not in the cache, to integrate with build-id servers being put in place by organizations such as Fedora. . perf buildid-list -i an-elf-file-instead-of-a-perf.data is back showing its build-id. . No need to do feature checks when doing a 'make tags' . Fix some 'perf test' errors and make them use the tracepoint evsel constructor. . perf top now shares more of the evsel config/creation routines with 'record', paving the way for further integration like 'top' snapshots, etc. . perf top now supports DWARF callchains. . perf evlist decodes sample_type and read_format, helping diagnose problems. . Fix mmap limitations on 32-bit, fix from David Miller. . perf diff fixes from Jiri Olsa. . Ignore ABS symbols when loading data maps, fix from Namhyung Kim . Hists improvements from Namhyung Kim . Don't check configuration on make clean, from Namhyung Kim . Fix dso__fprintf() print statement, from Stephane Eranian. Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: Ingo Molnar <mingo@kernel.org>
| * perf top: Use perf_evlist__config()Arnaldo Carvalho de Melo2012-12-114-157/+79Star
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Using struct perf_record_opts to specify how to configure the evsel perf_event_attrs. This gets top closer to record in the way it sets up evsels, with the aim of sharing more and more to the point that both will be a single utility. In this direction top now uses the same callchain option parsing as record and that brings DWARF callchains to top, something that was already available for record. 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@gmail.com> 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-u03o0bsrqcjgskciso3pvsjr@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
| * perf record: Export the callchain parsing routine and helpArnaldo Carvalho de Melo2012-12-112-5/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Will be used by perf top, that will first setup the symbol system to deal with callchains and then call these routines to ask the kernel for callchains. 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@gmail.com> 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-jg0dh8rmlx7x11e7u7mnasvd@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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