2011/3/17 陳韋任 <che...@iis.sinica.edu.tw>: > The "better match" just means better than usual sampling mechanisms, > right? Arun mentioned that "PEBS is known to be precise, but not > accurate". So we still cannot get the exact IP which causes the event. > Am I right?
Appendix B.2.3.3 Precise Execution Events in this doc: http://www.intel.com/Assets/PDF/manual/248966.pdf explains what Intel calls the "Shadowing effect" in some detail. So yes, hardware can see the precise IP, but it doesn't let software record it :( -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
