lkml.org 
[lkml]   [2018]   [Sep]   [10]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    /
    Date
    From
    SubjectRe: [PATCH v8 0/3]: perf: reduce data loss when profiling highly parallel CPU bound workloads

    * Jiri Olsa <jolsa@redhat.com> wrote:

    > > Per-CPU threading the record session would have so many other advantages as well (scalability,
    > > etc.).
    > >
    > > Jiri did per-CPU recording patches a couple of months ago, not sure how usable they are at the
    > > moment?
    >
    > it's still usable, I can rebase it and post a branch pointer,
    > the problem is I haven't been able to find a case with a real
    > performance benefit yet.. ;-)
    >
    > perhaps because I haven't tried on server with really big cpu
    > numbers

    Maybe Alexey could pick up from there? Your concept looked fairly mature to me
    and I tried it on a big-CPU box back then and there were real improvements.

    Thanks,

    Ingo

    \
     
     \ /
      Last update: 2018-09-10 12:03    [W:2.855 / U:0.396 seconds]
    ©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site