From: dean gaudet <[EMAIL PROTECTED]> Date: Fri, 16 Nov 2007 09:51:08 -0800 (PST)
> 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... I want to state that even though I've been a stickler on the system call stuff, in general I want to see perfmon2 go into tree and I agree with how most of the infrastructure is implemented and the features it provides. - 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/
