Messages in this thread | | | Date | Mon, 10 Sep 2018 12:03:03 +0200 | From | Ingo Molnar <> | Subject | Re: [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
| |