Hi, On Mon, Mar 21, 2011 at 5:08 AM, Arun Sharma <a...@sharma-home.net> wrote: > 2011/3/20 陳韋任 <che...@iis.sinica.edu.tw>: > >> And I am wondering is it possible that libpfm4 exposes LBR to users >> even perf_events doesn't? > > No - the kernel needs to support this functionality by exposing it via > a system call. libpfm4 is a user level convenience library that > converts an event name into a structure expected by the kernel. > Arun is correct. LBR needs to be exposed thru the perf_event_open() system + sampling buffer. That's not the case today.
> -Arun > ------------------------------------------------------------------------------ Colocation vs. Managed Hosting A question and answer guide to determining the best fit for your organization - today and in the future. http://p.sf.net/sfu/internap-sfd2d _______________________________________________ perfmon2-devel mailing list perfmon2-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/perfmon2-devel
