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2016-01-08perf hists: Export a couple of hist functionsNamhyung Kim2-7/+17
These are necessary for multi threaded sample processing: - hists__get__get_rotate_entries_in() - hists__collapse_insert_entry() - __hists__init() Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Noel Grandin <noelgrandin@gmail.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1452158050-28061-14-git-send-email-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-01-08perf diff: Use perf_hpp__register_sort_field interfaceJiri Olsa1-1/+1
Using perf_hpp__register_sort_field interface instead of directly adding the entry. Signed-off-by: Jiri Olsa <jolsa@kernel.org> Acked-by: Namhyung Kim <namhyung@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Noel Grandin <noelgrandin@gmail.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1452158050-28061-13-git-send-email-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-01-08perf tools: Add overhead/overhead_children keys defaults via stringJiri Olsa2-12/+39
We currently set 'overhead' and 'overhead_children' as default sort keys within perf_hpp__init function by directly adding into the sort list. This patch adds 'overhead' and 'overhead_children' in text form into sort_keys and let them be added by standard sort dimension interface. We need to eliminate dirrect sort_list additions to be able to add support for hists specific sort keys. Signed-off-by: Jiri Olsa <jolsa@kernel.org> Acked-by: Namhyung Kim <namhyung@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Noel Grandin <noelgrandin@gmail.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1452158050-28061-12-git-send-email-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-01-08perf tools: Remove list entry from struct sort_entryJiri Olsa1-2/+0
It's no longer needed. Signed-off-by: Jiri Olsa <jolsa@kernel.org> Acked-by: Namhyung Kim <namhyung@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Noel Grandin <noelgrandin@gmail.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1452158050-28061-11-git-send-email-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-01-08perf tools: Include all tools/lib directory for tags/cscope/TAGS targetsJiri Olsa1-1/+1
Besides lockdep we use all the 'tools/lib' code in perf, so include it completely in tags. Signed-off-by: Jiri Olsa <jolsa@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Noel Grandin <noelgrandin@gmail.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1452158050-28061-10-git-send-email-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-01-08perf script: Align event name properlyJiri Olsa1-2/+22
Adding code to align event names, so we get aligned output in case of multiple events with different names. Before: $ perf script :13757 13757 163918.230829: cpu/mem-snp-none/P: ffff88085f20d010 :13757 13757 163918.230832: cpu/mem-loads,ldlat=30/P: 7f5a5f719f00 :13757 13757 163918.230835: cpu/mem-loads,ldlat=30/P: 7f5a5f719f00 :13758 13758 163918.230838: cpu/mem-snp-none/P: ffff88085f4ad810 :13758 13758 163918.154093: cpu/mem-stores/P: ffff88085bb53f28 :13757 13757 163918.155264: cpu/mem-snp-hitm/P: 601080 ... After: $ perf script :13757 13757 163918.228831: cpu/mem-snp-none/P: ffffffff81a841c0 :13757 13757 163918.228834: cpu/mem-loads,ldlat=30/P: 7f5a5f719f08 :13757 13757 163918.228837: cpu/mem-loads,ldlat=30/P: 7f5a5f719f08 :13758 13758 163918.228837: cpu/mem-snp-none/P: ffff88085f4ad800 :13758 13758 163918.154093: cpu/mem-stores/P: ffff88085bb53f28 :13757 13757 163918.155264: cpu/mem-snp-hitm/P: 601080 ... Signed-off-by: Jiri Olsa <jolsa@kernel.org> Acked-by: David Ahern <dsahern@gmail.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Noel Grandin <noelgrandin@gmail.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1452158050-28061-9-git-send-email-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-01-08perf tools: Add missing headers in perf's MANIFESTWang Nan1-0/+2
These lost headers are found in arm64 cross buildings, failing to build perf using tarballs generated using: $ make perf-targz-src-pkg Signed-off-by: Wang Nan <wangnan0@huawei.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Zefan Li <lizefan@huawei.com> Cc: pi3orama@163.com Link: http://lkml.kernel.org/r/1452263041-225488-3-git-send-email-wangnan0@huawei.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-01-08perf tools: Do not show trace command if it's not compiled inJiri Olsa2-1/+16
The trace command still appears in help message when you run simple 'perf' command. It's because the generate-cmdlist.sh does not care about the HAVE_LIBAUDIT_SUPPORT dependency of trace command and puts it into generated common_cmds array. Wrapping trace command under HAVE_LIBAUDIT_SUPPORT dependency, which will exclude it from common_cmds array if HAVE_LIBAUDIT_SUPPORT is not set. Signed-off-by: Jiri Olsa <jolsa@kernel.org> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Noel Grandin <noelgrandin@gmail.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1452158050-28061-8-git-send-email-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-01-08perf report: Change default to use event group viewNamhyung Kim1-0/+1
The event group view feature is to see related events together. To use the group view, events should be recorded as a group with a dedicated syntax of surrounding events by braces (-e '{ evt1, evt2, ... }'). Also 'perf report' also requires the --group option to enable it. However it's almost always beneficial to use the group view to see the group events as it's more expressive. And I think it's more natural to see events together if they are recorded as a group. Thus this patch changes the default value to enable it. If users don't want to see like it and keep the original behavior, they can set the report.group config variable to false and/or use --no-group option in the 'perf report' command line. Requested-by: Ingo Molnar <mingo@kernel.org> Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Stephane Eranian <eranian@google.com> Cc: Taeung Song <treeze.taeung@gmail.com> Link: http://lkml.kernel.org/r/1448807057-3506-1-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-01-08perf top: Decay periods in callchainsNamhyung Kim3-0/+30
It missed to decay periods in callchains when decaying hist entries. This resulted in more than 100 percent overhead in callchains in the fractal style output. Reported-by: Arnaldo Carvalho de Melo <acme@kernel.org> Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: Andi Kleen <andi@firstfloor.org> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1451963160-17196-1-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-01-08tools lib: Move bitmap.[ch] from tools/perf/ to tools/{lib,include}/Arnaldo Carvalho de Melo4-1/+6
So that lib/find_bit.c doesn't requires anything inside tools/perf/ Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: George Spelvin <linux@horizon.com Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Rasmus Villemoes <linux@rasmusvillemoes.dk> Cc: Wang Nan <wangnan0@huawei.com> Cc: Yury Norov <yury.norov@gmail.com> Link: http://lkml.kernel.org/n/tip-7lxe7jgohaac5faodndhdmvk@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-01-08tools lib: Sync tools/lib/find_bit.c with the kernelArnaldo Carvalho de Melo2-54/+51
Need to move the bitmap.[ch] things from tools/perf/ to tools/lib, will be done in the next patches. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: George Spelvin <linux@horizon.com Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Rasmus Villemoes <linux@rasmusvillemoes.dk> Cc: Wang Nan <wangnan0@huawei.com> Cc: Yury Norov <yury.norov@gmail.com> Link: http://lkml.kernel.org/n/tip-5fys65wkd7gu8j7a7xgukc5t@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-01-08tools lib: Move find_next_bit.c to tools/lib/Arnaldo Carvalho de Melo4-6/+6
The commit that introduced it should've moved it to the same place, plus the 'tools/' prefix, but instead moved it to a bogus tools/lib/util/ directory, being the only file there. Move it to tools/lib/find_bit.c, picking the name for the file where these routines live since: 8f6f19dd5143 ("lib: move find_last_bit to lib/find_next_bit.c") Next step is to make tools/lib/find_bit.c to differ from lib/find_bit.c just in removing what is not used by tools/. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: George Spelvin <linux@horizon.com Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Rasmus Villemoes <linux@rasmusvillemoes.dk> Cc: Wang Nan <wangnan0@huawei.com> Cc: Yury Norov <yury.norov@gmail.com> Link: http://lkml.kernel.org/n/tip-p391cex5mqvahp4pwrton87n@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-01-07perf tests: Give a bit more information on the CQM test failure pathArnaldo Carvalho de Melo1-1/+1
Before: $ perf test -v cqm 48: Test intel cqm nmi context read : --- start --- test child forked, pid 1681 parse_events failed test child finished with -2 ---- end ---- Test intel cqm nmi context read: Skip $ After: $ perf test -v cqm 48: Test intel cqm nmi context read : --- start --- test child forked, pid 1681 parse_events failed, is "intel_cqm/llc_occupancy/" available? test child finished with -2 ---- end ---- Test intel cqm nmi context read: Skip $ Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Matt Fleming <matt.fleming@intel.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/n/tip-eidpiv5x4nkbsx37xwikbnir@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-01-07perf tests: No need to set attr.sample_freq for tracking !PERF_RECORD_SAMPLEArnaldo Carvalho de Melo1-1/+0
We were asking for a 4kHz sample_freq, making the test fail needlessly when the system reduced /proc/sys/kernel/perf_event_max_sample_rate below that. Before: # perf test -vv dummy 23: Test using a dummy software event to keep tracking : --- start --- test child forked, pid 32421 ------------------------------------------------------------ perf_event_attr: type 1 size 112 config 0x9 { sample_period, sample_freq } 4000 sample_type IP|TID|ID|PERIOD <SNIP> sys_perf_event_open failed, error -22 Unable to open dummy and cycles event test child finished with -2 ---- end ---- Test using a dummy software event to keep tracking: Skip # [root@zoo ~]# cat /proc/sys/kernel/perf_event_max_sample_rate 1000 After: [root@zoo ~]# perf test dummy 23: Test using a dummy software event to keep tracking : Ok 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> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/n/tip-487iquegrs2379e5n0pi0tcp@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-01-07perf python: Add missing files to binding link listArnaldo Carvalho de Melo1-0/+2
Fixing this problem, introduced recently: $ perf test python 16: Try 'import perf' in python, checking link problems : FAILED! In verbose mode we find out what is missing: $ perf test -v python 16: Try 'import perf' in python, checking link problems : --- start --- test child forked, pid 24894 Traceback (most recent call last): File "<stdin>", line 1, in <module> ImportError: /tmp/build/perf/python/perf.so: undefined symbol: find_next_bit test child finished with -1 ---- end ---- Try 'import perf' in python, checking link problems: FAILED! $ 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> Cc: Wang Nan <wangnan0@huawei.com> Fixes: f77b57ad4fc4 ("perf cpu_map: Add cpu_map__new_event function") Link: http://lkml.kernel.org/n/tip-rajx0zkz6czdrnvvwf0jp76p@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-01-07perf test: No need for setting attr.sample_freq on the RECORD testArnaldo Carvalho de Melo1-1/+0
We're not looking at PERF_RECORD_SAMPLE entries and now by default we use PERF_COUNT_SW_DUMMY, so just remove that setting. 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> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/n/tip-cly7cnotktv5rqao13pkorem@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-01-07perf test: Use "dummy" events in the PERF_RECORD_ testArnaldo Carvalho de Melo1-1/+4
As we're test just the !PERF_RECORD_SAMPLE records. 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> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/n/tip-qp8radcz3il4q9wbnseh337d@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-01-07perf evlist: Introduce perf_evlist__new_dummy constructorArnaldo Carvalho de Melo2-0/+31
For case where all we need is an evlist with just an "dummy" evsel, like in some 'perf test' entries. 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> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/n/tip-q52le0pblm2k3ncvyilelr9z@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-01-07perf tests: No need to set attr.sample_freq in the perf time to TSC testArnaldo Carvalho de Melo1-1/+0
We were asking for a 4kHz sample_freq, making the test fail needlessly when the system reduced /proc/sys/kernel/perf_event_max_sample_rate below that. In this test we only look at the PERF_SAMPLE_TIME fields in PERF_RECORD_ meta events, no need to set sample_freq. Thanks to Namhyung for suggesting that max_sample_rate could be the reason for the test failure, seeing the 'perf test -vv' output I sent. Before: # echo 1000 > /proc/sys/kernel/perf_event_max_sample_rate # perf test TSC 45: Test converting perf time to TSC : FAILED! After: # perf test TSC 45: Test converting perf time to TSC : Ok # cat /proc/sys/kernel/perf_event_max_sample_rate 1000 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> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/n/tip-lcob05qhawkuvsyuu9g1fld5@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-01-06perf pmu: fix alias->snapshot missing initialization bugStephane Eranian1-0/+1
This patch fixes a bug in __perf_pmu__new_alias() whereby the alias->snapshot field was not initialized to false. This led to random alias->snapshot value for an alias and was breaking some measurements such as: $ perf stat -a -e uncore_imc/data_reads/ -I 1000 sleep 100 Because the event ended up being treated as snapshot mode, when it is not. Signed-off-by: Stephane Eranian <eranian@google.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Kan Liang <kan.liang@intel.com> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/1452106201-13073-1-git-send-email-eranian@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>