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96a44bbccd
linux/tools/perf
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Hari Bathini 96a44bbccd perf script: Add script print support for namespace events 
Introduce a new option to display events of type PERF_RECORD_NAMESPACES
and update perf-script documentation accordingly.

Shown below is output (trimmed) of perf script command with the newly
introduced option, on perf.data generated with perf record command using
--namespaces option.

  $ perf script --show-namespace-events
      swapper   0 [000]     0.000000: PERF_RECORD_NAMESPACES 1/1 - nr_namespaces: 7
                [0/net: 3/0xf000001c, 1/uts: 3/0xeffffffe, 2/ipc: 3/0xefffffff, 3/pid: 3/0xeffffffc,
                 4/user: 3/0xeffffffd, 5/mnt: 3/0xf0000000, 6/cgroup: 3/0xeffffffb]
      swapper   0 [000]     0.000000: PERF_RECORD_NAMESPACES 2/2 - nr_namespaces: 7
                [0/net: 3/0xf000001c, 1/uts: 3/0xeffffffe, 2/ipc: 3/0xefffffff, 3/pid: 3/0xeffffffc,
                 4/user: 3/0xeffffffd, 5/mnt: 3/0xf0000000, 6/cgroup: 3/0xeffffffb]

Commiter notes:

Testing it:

Investigating that double PERF_RECORD_NAMESPACES for the 19155
pid/tid... Its more than that, there are two PERF_RECORD_COMM as well,
and with zeroed timestamps, so probably a synthesizing artifact...

  # perf script --show-task --show-namespace
  <SNIP>
      perf     0 [000]     0.000000: PERF_RECORD_COMM: perf:19154/19154
      perf     0 [000]     0.000000: PERF_RECORD_FORK(19155:19155):(19154:19154)
      perf     0 [000]     0.000000: PERF_RECORD_NAMESPACES 19155/19155 - nr_namespaces: 7
          [0/net: 3/0xf0000081, 1/uts: 3/0xeffffffe, 2/ipc: 3/0xefffffff, 3/pid: 3/0xeffffffc,
           4/user: 3/0xeffffffd, 5/mnt: 3/0xf0000000, 6/cgroup: 3/0xeffffffb]
      perf     0 [000]     0.000000: PERF_RECORD_COMM: perf:19155/19155
      perf     0 [000]     0.000000: PERF_RECORD_COMM: perf:19155/19155
      perf     0 [000]     0.000000: PERF_RECORD_NAMESPACES 19155/19155 - nr_namespaces: 7
          [0/net: 3/0xf0000081, 1/uts: 3/0xeffffffe, 2/ipc: 3/0xefffffff, 3/pid: 3/0xeffffffc,
           4/user: 3/0xeffffffd, 5/mnt: 3/0xf0000000, 6/cgroup: 3/0xeffffffb]
   swapper     0 [000]  3110.881834:          1 cycles:  ffffffffa7060bf6 native_write_msr (/lib/modules/4.11.0-rc1+/build/vmlinux)

  <SNIP>

Signed-off-by: Hari Bathini <hbathini@linux.vnet.ibm.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Alexei Starovoitov <ast@fb.com>
Cc: Ananth N Mavinakayanahalli <ananth@linux.vnet.ibm.com>
Cc: Aravinda Prasad <aravinda@linux.vnet.ibm.com>
Cc: Brendan Gregg <brendan.d.gregg@gmail.com>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Cc: Eric Biederman <ebiederm@xmission.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Sargun Dhillon <sargun@sargun.me>
Cc: Steven Rostedt <rostedt@goodmis.org>
Link: http://lkml.kernel.org/r/148891932627.25309.1941587059154176221.stgit@hbathini.in.ibm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-03-14 15:17:36 -03:00
..
arch perf tools arm64: Add support for generating bpf prologue 2017-02-08 08:55:01 -03:00
bench perf bench numa: Add more comment for -c option 2017-03-06 12:39:30 -03:00
Documentation perf script: Add script print support for namespace events 2017-03-14 15:17:36 -03:00
jvmti perf kvmti: Remove unused Makefile file 2016-11-14 12:42:56 -03:00
pmu-events perf vendor events: Add mapping for KnightsMill PMU events 2017-03-03 19:07:13 -03:00
python perf python: Add tracepoint example 2016-07-12 16:23:35 -03:00
scripts perf/core improvements and fixes: 2016-08-04 11:02:38 +02:00
tests perf thread_map: Convert thread_map.refcnt from atomic_t to refcount_t 2017-03-03 19:07:16 -03:00
trace perf trace: Check if MAP_32BIT is defined (again) 2016-12-20 09:37:40 -03:00
ui perf hists browser: Fix typo in function switch_data_file 2017-03-13 11:58:57 -03:00
util perf record: Synthesize namespace events for current processes 2017-03-14 15:16:09 -03:00
.gitignore perf tools: Ignore generated files pmu-events/{jevents,pmu-events.c} for git 2017-03-13 10:59:36 -03:00
Build perf ftrace: Introduce new 'ftrace' tool 2017-01-26 11:43:01 -03:00
builtin-annotate.c perf tools: Add PERF_RECORD_NAMESPACES to include namespaces related info 2017-03-14 11:38:23 -03:00
builtin-bench.c
builtin-buildid-cache.c tools: Introduce str_error_r() 2016-07-12 15:19:47 -03:00
builtin-buildid-list.c
builtin-c2c.c perf c2c: Fix display bug when using pipe 2017-03-07 12:48:46 -03:00
builtin-config.c perf config: Mark where are config items from (user or system) 2016-11-14 13:10:37 -03:00
builtin-data.c perf data ctf: Add '--all' option for 'perf data convert' 2016-06-28 10:54:57 -03:00
builtin-diff.c perf tools: Add PERF_RECORD_NAMESPACES to include namespaces related info 2017-03-14 11:38:23 -03:00
builtin-evlist.c perf evlist: Rename for_each() macros to for_each_entry() 2016-06-23 11:26:15 -03:00
builtin-ftrace.c perf ftrace: Use pager for displaying result 2017-03-03 19:07:17 -03:00
builtin-help.c perf tools: Propagate perf_config() errors 2017-01-27 12:23:33 -03:00
builtin-inject.c perf tools: Add PERF_RECORD_NAMESPACES to include namespaces related info 2017-03-14 11:38:23 -03:00
builtin-kallsyms.c perf kallsyms: Introduce tool to look for extended symbol information on the running kernel 2017-01-11 16:48:01 -03:00
builtin-kmem.c perf tools: Add PERF_RECORD_NAMESPACES to include namespaces related info 2017-03-14 11:38:23 -03:00
builtin-kvm.c perf tools: Add PERF_RECORD_NAMESPACES to include namespaces related info 2017-03-14 11:38:23 -03:00
builtin-list.c perf list: Add debug support for outputing alias string 2017-02-08 08:55:04 -03:00
builtin-lock.c perf tools: Add PERF_RECORD_NAMESPACES to include namespaces related info 2017-03-14 11:38:23 -03:00
builtin-mem.c perf tools: Add PERF_RECORD_NAMESPACES to include namespaces related info 2017-03-14 11:38:23 -03:00
builtin-probe.c perf probe: Add option --symfs 2017-02-08 09:41:10 -03:00
builtin-record.c perf record: Synthesize namespace events for current processes 2017-03-14 15:16:09 -03:00
builtin-report.c perf tools: Add PERF_RECORD_NAMESPACES to include namespaces related info 2017-03-14 11:38:23 -03:00
builtin-sched.c perf tools: Add PERF_RECORD_NAMESPACES to include namespaces related info 2017-03-14 11:38:23 -03:00
builtin-script.c perf script: Add script print support for namespace events 2017-03-14 15:17:36 -03:00
builtin-stat.c perf tools: Force uncore events to system wide monitoring 2017-03-03 19:07:19 -03:00
builtin-timechart.c perf timechart: Use NSEC_PER_U?SEC 2016-08-23 15:37:33 -03:00
builtin-top.c perf utils: Check verbose flag properly 2017-02-20 11:35:54 -03:00
builtin-trace.c perf tools: Add PERF_RECORD_NAMESPACES to include namespaces related info 2017-03-14 11:38:23 -03:00
builtin-version.c
builtin.h perf ftrace: Introduce new 'ftrace' tool 2017-01-26 11:43:01 -03:00
check-headers.sh perf tools: Move headers check into bash script 2016-12-15 16:25:44 -03:00
command-list.txt perf tools: Missing c2c command in command-list 2017-03-13 10:59:31 -03:00
CREDITS
design.txt
Makefile
Makefile.config tools build: Add test for sched_getcpu() 2017-03-03 19:07:19 -03:00
Makefile.perf perf build: Add special fixdep cleaning rule 2017-02-17 16:04:38 -03:00
MANIFEST tools include: Adopt kernel's refcount.h 2017-03-03 19:07:14 -03:00
perf-archive.sh
perf-completion.sh
perf-read-vdso.c
perf-sys.h perf powerpc: Fix build-test failure 2016-09-08 13:44:07 -03:00
perf-with-kcore.sh
perf.c perf tools: Propagate perf_config() errors 2017-01-27 12:23:33 -03:00
perf.h perf tools: Add PERF_RECORD_NAMESPACES to include namespaces related info 2017-03-14 11:38:23 -03:00