On Wed, Mar 16, 2011 at 7:07 PM, 陳韋任 <che...@iis.sinica.edu.tw> wrote:
> You mean PEBS makes the skid disappered? Does `perf` or libpfm4 support this? > The example I showed was ran on a x86 machine, it seems `perf` does not use > PEBS > feature. > It depends on the suffix. Try perf record -e branch-misses:p PEBS is known to be precise, but not accurate. That is, the instruction pointed to by the PMU interrupt is not necessarily the same as the one that triggered the event. But hopefully there is a fixed relationship between the two. For eg: if the skid was constant, the tools can correct them. -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
