On Fri, 16 Nov 2007, Andi Kleen wrote: > I didn't see a clear list.
- cross platform extensible API for configuring perf counters - support for multiplexed counters - support for virtualized 64-bit counters - support for PC and call graph sampling at specific intervals - support for reading counters not necessarily with sampling - taskswitch support for counters - API available from userland - ability to self-monitor: need select/poll/etc interface - support for PEBS, IBS and whatever other new perf monitoring infrastructure the vendors through at us in the future - low overhead: must minimize the "probe effect" of monitoring - low noise in measurements: cannot achieve this in userland permon2 has all of this and more i've probably neglected... -dean - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
