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Wang Nan 3c1cb7e372 perf record: Split output into multiple files via '--switch-output' 
Allow 'perf record' to split its output into multiple files.

For example:

  # ~/perf record -a --timestamp-filename --switch-output &
  [1] 10763
  # kill -s SIGUSR2 10763
  [ perf record: dump data: Woken up 1 times ]
  # [ perf record: Dump perf.data.2015122622314468 ]

  # kill -s SIGUSR2 10763
  [ perf record: dump data: Woken up 1 times ]
  # [ perf record: Dump perf.data.2015122622314762 ]

  # kill -s SIGUSR2 10763
  [ perf record: dump data: Woken up 1 times ]
  #[ perf record: Dump perf.data.2015122622315171 ]

  # fg
  perf record -a --timestamp-filename --switch-output
  ^C[ perf record: Woken up 1 times to write data ]
  [ perf record: Dump perf.data.2015122622315513 ]
  [ perf record: Captured and wrote 0.014 MB perf.data.<timestamp> (296 samples) ]

  # ls -l
  total 920
  -rw------- 1 root root 797692 Dec 26 22:31 perf.data.2015122622314468
  -rw------- 1 root root  59960 Dec 26 22:31 perf.data.2015122622314762
  -rw------- 1 root root  59912 Dec 26 22:31 perf.data.2015122622315171
  -rw------- 1 root root  19220 Dec 26 22:31 perf.data.2015122622315513

Signed-off-by: Wang Nan <wangnan0@huawei.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Zefan Li <lizefan@huawei.com>
Cc: pi3orama@163.com
Link: http://lkml.kernel.org/r/1461178794-40467-4-git-send-email-wangnan0@huawei.com
Signed-off-by: He Kuang <hekuang@huawei.com>
[ Added man page entry, used the re-synthesize patch in this series as a fixup ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-04-28 09:58:59 -03:00
..
arch
perf tools: Update x86's syscall_64.tbl, adding preadv2 & pwritev2
2016-04-26 13:15:02 -03:00
bench
perf bench: Remove one more die() call
2016-04-26 13:28:40 -03:00
config
perf tools: Build syscall table .c header from kernel's syscall_64.tbl
2016-04-08 09:58:14 -03:00
Documentation
perf record: Split output into multiple files via '--switch-output'
2016-04-28 09:58:59 -03:00
jvmti
perf jit: Add support for using TSC as a timestamp
2016-04-01 18:42:55 -03:00
python
perf python: Support the PERF_RECORD_SWITCH event
2015-10-07 19:41:50 -03:00
scripts
perf script: Fix postgresql ubuntu install instructions
2016-04-19 12:36:54 -03:00
tests
perf tools: Set the maximum allowed stack from /proc/sys/kernel/perf_event_max_stack
2016-04-27 10:29:07 -03:00
trace
perf trace: Read thread's COMM from /proc when not set
2016-04-26 13:15:00 -03:00
ui
perf hists browser: Fold two consecutive symbol_conf.use_callchain ifs
2016-04-18 12:26:27 -03:00
util
perf tools: Introduce trigger class
2016-04-28 09:58:58 -03:00
.gitignore
perf tools: Add Intel PT instruction decoder
2015-08-17 11:11:36 -03:00
Build
perf tools: Set and pass DOCDIR to builtin-report.c
2016-01-12 12:42:07 -03:00
builtin-annotate.c
perf machine: Rename perf_event__preprocess_sample to machine__resolve
2016-03-23 12:03:08 -03:00
builtin-bench.c
perf subcmd: Create subcmd library
2015-12-17 14:27:14 -03:00
builtin-buildid-cache.c
perf tools: Move timestamp creation to util
2016-01-29 17:30:06 -03:00
builtin-buildid-list.c
perf subcmd: Create subcmd library
2015-12-17 14:27:14 -03:00
builtin-config.c
perf config: Make show_config() use perf_config_set
2016-04-14 09:15:47 -03:00
builtin-data.c
perf subcmd: Create subcmd library
2015-12-17 14:27:14 -03:00
builtin-diff.c
perf machine: Rename perf_event__preprocess_sample to machine__resolve
2016-03-23 12:03:08 -03:00
builtin-evlist.c
perf evlist: Add --trace-fields option to show trace fields
2016-01-08 14:23:02 -03:00
builtin-help.c
perf help: Use asprintf instead of adhoc equivalents
2016-03-23 16:36:07 -03:00
builtin-inject.c
perf tools: Add time conversion event
2016-03-31 10:52:24 -03:00
builtin-kmem.c
perf callchain: Start moving away from global per thread cursors
2016-04-14 14:48:07 -03:00
builtin-kvm.c
perf evsel: Do not use globals in config()
2016-04-11 22:18:20 -03:00
builtin-list.c
perf subcmd: Create subcmd library
2015-12-17 14:27:14 -03:00
builtin-lock.c
perf subcmd: Create subcmd library
2015-12-17 14:27:14 -03:00
builtin-mem.c
perf mem: Add -U/-K (--all-user/--all-kernel) options
2016-03-30 11:14:07 -03:00
builtin-probe.c
perf subcmd: Create subcmd library
2015-12-17 14:27:14 -03:00
builtin-record.c
perf record: Split output into multiple files via '--switch-output'
2016-04-28 09:58:59 -03:00
builtin-report.c
perf tools: Set the maximum allowed stack from /proc/sys/kernel/perf_event_max_stack
2016-04-27 10:29:07 -03:00
builtin-sched.c
perf sched map: Display only given cpus
2016-04-13 10:11:52 -03:00
builtin-script.c
perf tools: Set the maximum allowed stack from /proc/sys/kernel/perf_event_max_stack
2016-04-27 10:29:07 -03:00
builtin-stat.c
perf stat: Add --metric-only support for -A
2016-03-10 16:50:47 -03:00
builtin-timechart.c
perf machine: Rename perf_event__preprocess_sample to machine__resolve
2016-03-23 12:03:08 -03:00
builtin-top.c
perf tools: Set the maximum allowed stack from /proc/sys/kernel/perf_event_max_stack
2016-04-27 10:29:07 -03:00
builtin-trace.c
perf tools: Set the maximum allowed stack from /proc/sys/kernel/perf_event_max_stack
2016-04-27 10:29:07 -03:00
builtin-version.c
perf tools: Move cmd_version() to builtin-version.c
2015-12-09 13:42:03 -03:00
builtin.h
perf tools: Remove needless 'extern' from function prototypes
2016-03-23 15:06:35 -03:00
command-list.txt
perf tools: Do not show trace command if it's not compiled in
2016-01-08 12:46:17 -03:00
CREDITS
…
design.txt
perf tools: Update some code references in design.txt
2014-03-18 18:17:06 -03:00
Makefile
perf build tests: Do parallell builds with 'build-test'
2016-02-04 15:57:00 -03:00
Makefile.perf
perf tools: Build syscall table .c header from kernel's syscall_64.tbl
2016-04-08 09:58:14 -03:00
MANIFEST
perf bench: Fix detached tarball building due to missing 'perf bench memcpy' headers
2016-03-24 12:28:57 -03:00
perf-archive.sh
…
perf-completion.sh
perf tools: Avoid confusion with preloaded bash function for perf bash completion
2015-03-19 13:53:27 -03:00
perf-read-vdso.c
perf tools: Build programs to copy 32-bit compatibility
2014-10-29 10:32:48 -02:00
perf-sys.h
perf tools: Move generic barriers out of perf-sys.h
2015-05-08 16:05:08 -03:00
perf-with-kcore.sh
perf tools: Fix perf-with-kcore handling of arguments containing spaces
2015-08-06 16:48:27 -03:00
perf.c
perf tools: Set the maximum allowed stack from /proc/sys/kernel/perf_event_max_stack
2016-04-27 10:29:07 -03:00
perf.h
perf tools: Ditch record_opts.callgraph_set
2016-04-18 12:26:27 -03:00