linux/tools/perf/builtin-script.c, branch v4.5

perf script: Align event name properly

2016-01-08T15:57:26Z

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 Acked-by: David Ahern Cc: Adrian Hunter Cc: Namhyung Kim Cc: Noel Grandin Cc: Peter Zijlstra Link: http://lkml.kernel.org/r/1452158050-28061-9-git-send-email-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo

perf script: Display stat events by default

2016-01-06T23:11:16Z

If no script is specified for stat data, display stat events in raw form. $ perf stat record ls SNIP Performance counter stats for 'ls': 0.851585 task-clock (msec) # 0.717 CPUs utilized 0 context-switches # 0.000 K/sec 0 cpu-migrations # 0.000 K/sec 114 page-faults # 0.134 M/sec 2,620,918 cycles # 3.078 GHz stalled-cycles-frontend stalled-cycles-backend 2,714,111 instructions # 1.04 insns per cycle 542,434 branches # 636.970 M/sec 15,946 branch-misses # 2.94% of all branches 0.001186954 seconds time elapsed $ perf script CPU THREAD VAL ENA RUN TIME EVENT -1 26185 851585 851585 851585 1186954 task-clock -1 26185 0 851585 851585 1186954 context-switches -1 26185 0 851585 851585 1186954 cpu-migrations -1 26185 114 851585 851585 1186954 page-faults -1 26185 2620918 853340 853340 1186954 cycles -1 26185 0 0 0 1186954 stalled-cycles-frontend -1 26185 0 0 0 1186954 stalled-cycles-backend -1 26185 2714111 853340 853340 1186954 instructions -1 26185 542434 853340 853340 1186954 branches -1 26185 15946 853340 853340 1186954 branch-misses Signed-off-by: Jiri Olsa Tested-by: Arnaldo Carvalho de Melo Tested-by: Kan Liang Cc: David Ahern Cc: Namhyung Kim Cc: Peter Zijlstra Link: http://lkml.kernel.org/r/1452077397-31958-3-git-send-email-jolsa@kernel.org [ Rename 'time' parameter to 'tstamp' to fix build on older distros ] Signed-off-by: Arnaldo Carvalho de Melo

perf script: Add stat default handlers

2016-01-06T23:11:15Z

Implement struct scripting_ops::(process_stat|process_stat_interval) handlers - calling scripting handlers from stat events handlers. Signed-off-by: Jiri Olsa Tested-by: Kan Liang Cc: David Ahern Cc: Namhyung Kim Cc: Peter Zijlstra Link: http://lkml.kernel.org/r/1452028152-26762-6-git-send-email-jolsa@kernel.org [ Rename 'time' parameters to 'tstamp', to fix the build in older distros ] Signed-off-by: Arnaldo Carvalho de Melo

perf script: Process stat config event

2016-01-06T23:11:15Z

Adding processing of stat config event and initialize stat_config object. Signed-off-by: Jiri Olsa Tested-by: Kan Liang Cc: David Ahern Cc: Namhyung Kim Cc: Peter Zijlstra Link: http://lkml.kernel.org/r/1452028152-26762-4-git-send-email-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo

perf script: Process cpu/threads maps

2016-01-06T23:11:15Z

Adding processing of cpu/threads maps. Configuring session's evlist with these maps. Signed-off-by: Jiri Olsa Tested-by: Kan Liang Cc: David Ahern Cc: Namhyung Kim Cc: Peter Zijlstra Link: http://lkml.kernel.org/r/1452028152-26762-3-git-send-email-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo

perf subcmd: Create subcmd library

2015-12-17T17:27:14Z

Move the subcommand-related files from perf to a new library named libsubcmd.a. Since we're moving files anyway, go ahead and rename 'exec_cmd.*' to 'exec-cmd.*' to be consistent with the naming of all the other files. Signed-off-by: Josh Poimboeuf Cc: Jiri Olsa Cc: Namhyung Kim Cc: Peter Zijlstra Link: http://lkml.kernel.org/r/c0a838d4c878ab17fee50998811612b2281355c1.1450193761.git.jpoimboe@redhat.com Signed-off-by: Arnaldo Carvalho de Melo

perf tools: Remove 'perf' from subcmd function and variable names

2015-12-17T00:34:28Z

In preparation for moving exec_cmd.c and run-command.c out of perf and into a library, remove 'perf' from all the symbol names. Signed-off-by: Josh Poimboeuf Cc: Jiri Olsa Cc: Namhyung Kim Cc: Peter Zijlstra Link: http://lkml.kernel.org/r/bc3ee82b40b8f396b644fa49e0f7260ce442635b.1450193761.git.jpoimboe@redhat.com Signed-off-by: Arnaldo Carvalho de Melo

perf script: Add support for PERF_TYPE_BREAKPOINT

2015-12-11T12:25:16Z

Useful for getting stack traces for hardware breakpoint events. Test result: Before this patch: # ~/perf record -g -e mem:0x600980 ./sample [ perf record: Woken up 1 times to write data ] [ perf record: Captured and wrote 0.011 MB perf.data (12 samples) ] # ~/perf script # ~/perf script -F comm,tid,pid,time,event,ip,sym,dso sample 22520/22520 97457.836294: mem:0x600980: 5a4ad8 __clear_user (/lib/modules/4.3.0-rc4+/build/vmlinux) ... 3f41ba sys_execve (/lib/modules/4.3.0-rc4+/build/vmlinux) 979395 return_from_execve (/lib/modules/4.3.0-rc4+/build/vmlinux) 7f1b59719cf7 [unknown] ([unknown]) sample 22520/22520 97457.836648: mem:0x600980: 532 main (/home/w00229757/DataBreakpoints/sample) 21bd5 __libc_start_main (/tmp/oxygen_root-root/lib64/libc-2.18.so) ... After this patch: # ~/perf script sample 22520 97457.836294: mem:0x600980: 5a4ad8 __clear_user (/lib/modules/4.3.0-rc4+/build/vmlinux) ... 3f41ba sys_execve (/lib/modules/4.3.0-rc4+/build/vmlinux) 979395 return_from_execve (/lib/modules/4.3.0-rc4+/build/vmlinux) 7f1b59719cf7 [unknown] ([unknown]) sample 22520 97457.836648: mem:0x600980: 532 main (/home/w00229757/DataBreakpoints/sample) 21bd5 __libc_start_main (/tmp/oxygen_root-root/lib64/libc-2.18.so) Committer note: So, further testing, lets do it for a kernel global variable, tcp_hashinfo: # grep -w tcp_hashinfo /proc/kallsyms ffffffff8202fc00 B tcp_hashinfo # Note: allow specifying mem:tcp_hashinfo: # perf record -g -e mem:0xffffffff81c65ac0 -a ^C[ perf record: Woken up 1 times to write data ] [ perf record: Captured and wrote 0.790 MB perf.data ] # # perf evlist mem:0xffffffff8202fc00 # perf evlist -v mem:0xffffffff8202fc00: type: 5, size: 112, { sample_period, sample_freq }: 1, sample_type: IP|TID|TIME|CALLCHAIN|CPU, disabled: 1, inherit: 1, mmap: 1, comm: 1, task: 1, sample_id_all: 1, exclude_guest: 1, mmap2: 1, comm_exec: 1, bp_type: 3, { bp_addr, config1 }: 0xffffffff8202fc00, { bp_len, config2 }: 0x4 # Then, after this patch: # perf script swapper 0 [000] 171036.986988: mem:0xffffffff8202fc00: 8a0fb5 __inet_lookup_established (/lib/modules/4.3.0+/build/vmlinux) 8bc09d tcp_v4_early_demux (/lib/modules/4.3.0+/build/vmlinux) 896def ip_rcv_finish (/lib/modules/4.3.0+/build/vmlinux) 8976c2 ip_rcv (/lib/modules/4.3.0+/build/vmlinux) 855eba __netif_receive_skb_core (/lib/modules/4.3.0+/build/vmlinux) 8565d8 __netif_receive_skb (/lib/modules/4.3.0+/build/vmlinux) 8572a8 process_backlog (/lib/modules/4.3.0+/build/vmlinux) 856b11 net_rx_action (/lib/modules/4.3.0+/build/vmlinux) 2a284b __do_softirq (/lib/modules/4.3.0+/build/vmlinux) 2a2ba3 irq_exit (/lib/modules/4.3.0+/build/vmlinux) 96b7a4 do_IRQ (/lib/modules/4.3.0+/build/vmlinux) 969807 ret_from_intr (/lib/modules/4.3.0+/build/vmlinux) 804c27 cpuidle_enter (/lib/modules/4.3.0+/build/vmlinux) 2ded22 call_cpuidle (/lib/modules/4.3.0+/build/vmlinux) 2defb6 cpu_startup_entry (/lib/modules/4.3.0+/build/vmlinux) 95d5bc rest_init (/lib/modules/4.3.0+/build/vmlinux) 1163ffa start_kernel ([kernel.vmlinux].init.text) 11634d7 x86_64_start_reservations ([kernel.vmlinux].init.text) 1163623 x86_64_start_kernel ([kernel.vmlinux].init.text) Signed-off-by: Wang Nan Tested-by: Arnaldo Carvalho de Melo Cc: Adrian Hunter Cc: David S. Miller Cc: Jiri Olsa Cc: Namhyung Kim Cc: Zefan Li Cc: pi3orama@163.com Link: http://lkml.kernel.org/r/1449541544-67621-16-git-send-email-wangnan0@huawei.com Signed-off-by: Arnaldo Carvalho de Melo

perf script: Pass perf_script into process_event

2015-11-26T19:06:16Z

Passing perf_script struct into process_event function, so we could process configuration data for event printing. It will be used in following patch to get event name string width. Signed-off-by: Jiri Olsa Cc: David Ahern Cc: Namhyung Kim Cc: Peter Zijlstra Link: http://lkml.kernel.org/r/20151126175521.GA18979@krava.brq.redhat.com Signed-off-by: Arnaldo Carvalho de Melo

perf script: Remove default_scripting_ops

2015-11-26T16:33:00Z

The default script handler (the one that displays samples on screen) is implemented scripting_ops instance with process_event callback. This way we can't pass any script config into display function, because we don't want perl or python handlers to be depended on perf script internals. Removing the default_scripting_ops and calling process event function directly. This way it's possible to pass perf_script struct and process configuration data in following commit. Signed-off-by: Jiri Olsa Acked-by: David Ahern Cc: Namhyung Kim Cc: Peter Zijlstra Link: http://lkml.kernel.org/r/1448546125-29245-1-git-send-email-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo