lkml.org 
[lkml]   [2016]   [Jan]   [6]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    /
    Date
    From
    SubjectRe: [PATCHv9 0/3] perf stat: Add scripting support
    On Wed, Jan 06, 2016 at 11:18:02AM -0300, Arnaldo Carvalho de Melo wrote:
    > Em Wed, Jan 06, 2016 at 11:49:54AM +0100, Jiri Olsa escreveu:
    > > hi,
    > > sending another version of stat scripting.
    >
    > > v9 changes:
    > > - rebased on top of accepted patches
    > > - desribed CPI metric in changelog [Arnaldo]
    > > - fixed cpu conversion [Arnaldo]
    >
    > Thanks, applied. Testing the cpi script with an endless:
    >
    > perf stat record -I 1000 -a | perf script -s ~acme/git/linux/tools/perf/scripts/python/stat-cpi.py
    > 187.151796: cpu -1, thread -1 -> cpi 0.797917 (2568467461/3218963700)
    > 188.151979: cpu -1, thread -1 -> cpi 0.734628 (2714373371/3694892981)
    > 189.152212: cpu -1, thread -1 -> cpi 0.753332 (2958819204/3927644236)
    > 190.152975: cpu -1, thread -1 -> cpi 1.587754 (202360895/127451009)
    > 191.153486: cpu -1, thread -1 -> cpi 1.558219 (290557309/186467579)
    >
    > in one monitor while trying various workloads in another, to see how it reacts,
    > and after a while those raw numbers at the end of each line become just noise,
    > I think they should be shown only under 'stat-cpy -v' (I think we can pass args
    > to the 'perf script' scripts, right?
    >
    > Also the 'cpu', 'thread' and '-> cpi' could be turned into headers, like 'perf
    > stat' does?
    >
    > Anyway, you called it 'example script' and we can improve it on top of what I
    > pushed to perf/core, i.e. this patchkit, unchanged, thanks!

    yep, it's just noise and it's just an example to show
    how the stat scripting works.. we can tune it up with
    more ratios ;-)

    jirka


    \
     
     \ /
      Last update: 2016-01-06 16:01    [W:3.605 / U:0.532 seconds]
    ©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site