public-mirrors/linux
1
0
Fork 0
mirror of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git synced 2025-08-05 16:54:27 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions
linux/tools
History
Alexey Budankov f92da71280 perf record: Enable arbitrary event names thru name= modifier 
Enable complex event names containing [.:=,] symbols to be encoded into Perf
trace using name= modifier e.g. like this:

  perf record -e cpu/name=\'OFFCORE_RESPONSE:request=DEMAND_RFO:response=L3_HIT.SNOOP_HITM\',\
		  period=0x3567e0,event=0x3c,cmask=0x1/Duk ./futex

Below is how it looks like in the report output. Please note explicit escaped
quoting at cmdline string in the header so that thestring can be directly reused
for another collection in shell:

perf report --header

  # ========
  ...
  # cmdline : /root/abudanko/kernel/tip/tools/perf/perf record -v -e cpu/name=\'OFFCORE_RESPONSE:request=DEMAND_RFO:response=L3_HIT.SNOOP_HITM\',period=0x3567e0,event=0x3c,cmask=0x1/Duk ./futex
  # event : name = OFFCORE_RESPONSE:request=DEMAND_RFO:response=L3_HIT.SNOOP_HITM, , type = 4, size = 112, config = 0x100003c, { sample_period, sample_freq } = 3500000, sample_type = IP|TID|TIME, disabled = 1, inh
  ...
  # ========
  #
  #
  # Total Lost Samples: 0
  #
  # Samples: 24K of event 'OFFCORE_RESPONSE:request=DEMAND_RFO:response=L3_HIT.SNOOP_HITM'
  # Event count (approx.): 86492000000
  #
  # Overhead  Command  Shared Object     Symbol
  # ........  .......  ................  ..............................................
  #
      14.75%  futex    [kernel.vmlinux]  [k] __entry_trampoline_start
...

  perf stat -e cpu/name=\'CPU_CLK_UNHALTED.THREAD:cmask=0x1\',period=0x3567e0,event=0x3c,cmask=0x1/Duk ./futex

  10000000 process context switches in 16678890291ns (1667.9ns/ctxsw)

   Performance counter stats for './futex':

      88,095,770,571      CPU_CLK_UNHALTED.THREAD:cmask=0x1

        16.679542407 seconds time elapsed

Signed-off-by: Alexey Budankov <alexey.budankov@linux.intel.com>
Acked-by: Andi Kleen <ak@linux.intel.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/c194b060-761d-0d50-3b21-bb4ed680002d@linux.intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2018-06-06 12:52:04 -03:00
..
accounting
arch tools headers: Sync x86 cpufeatures.h with the kernel sources 2018-06-01 16:13:16 -03:00
bpf bpf: fix uninitialized variable in bpf tools 2018-04-26 22:23:02 +02:00
build Kbuild: fix # escaping in .cmd files for future Make 2018-04-11 00:03:02 +09:00
cgroup
firewire
gpio
hv
iio
include Merge remote-tracking branch 'tip/perf/urgent' into perf/core 2018-06-04 10:28:20 -03:00
kvm/kvm_stat tools/kvm_stat: Remove unused function 2018-03-28 22:47:06 +02:00
laptop
leds
lib Merge branch 'linus' into perf/core, to pick up fixes 2018-05-25 08:02:43 +02:00
memory-model
nfsd
objtool objtool: Detect RIP-relative switch table references, part 2 2018-05-19 08:10:04 +02:00
pci
pcmcia
perf perf record: Enable arbitrary event names thru name= modifier 2018-06-06 12:52:04 -03:00
power tools: power/acpi, revert to LD = gcc 2018-05-04 11:24:22 +02:00
scripts Kbuild: fix # escaping in .cmd files for future Make 2018-04-11 00:03:02 +09:00
spi
testing Merge branch 'akpm' (patches from Andrew) 2018-05-25 20:24:28 -07:00
thermal/tmon tools/thermal: tmon: fix for segfault 2018-03-27 09:51:23 +02:00
time
usb usbip: tools: usbipd: exclude exported devices from exportable device list 2018-03-22 13:08:20 +01:00
virtio ptr_ring: fix build 2018-03-20 03:17:37 +02:00
vm
wmi
Makefile