On Fri, Feb 4, 2011 at 2:12 PM, Peter Zijlstra <pet...@infradead.org> wrote: > On Fri, 2011-02-04 at 14:00 +0200, Stephane Eranian wrote: > >> This series of patches solves this problem by introducing a custom >> encoding for UNHALTED_REFERENCE_CYCLES (0xff3c) and improving >> the constraint infrastructure to handle events which can ONLY be >> measured on fixed counters. > > Right, so the only problem I can see with this is that Intel will at > some point in the future put an actual event there. > I doubt that but I will check with them.
The alternative I thought about would be to use a bit in the upper 32 bit section of attr.config and use the constraint->cmask to catch it. That would be a special cmask. That would probably work because ALL events have to go through get_constraints(). ------------------------------------------------------------------------------ The modern datacenter depends on network connectivity to access resources and provide services. The best practices for maximizing a physical server's connectivity to a physical network are well understood - see how these rules translate into the virtual world? http://p.sf.net/sfu/oracle-sfdevnlfb _______________________________________________ perfmon2-devel mailing list perfmon2-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/perfmon2-devel
