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Re: [Qemu-devel] [F.A.Q.] perf ABI backwards and forwards compatibility
From: |
Ingo Molnar |
Subject: |
Re: [Qemu-devel] [F.A.Q.] perf ABI backwards and forwards compatibility |
Date: |
Tue, 8 Nov 2011 13:59:32 +0100 |
User-agent: |
Mutt/1.5.21 (2010-09-15) |
* Peter Zijlstra <address@hidden> wrote:
> On Tue, 2011-11-08 at 13:15 +0100, Ingo Molnar wrote:
> >
> > The one notable thing that isnt being tested in a natural way is
> > the 'group of events' abstraction - which, ironically, has been
> > added on the perfmon guys' insistence. No app beyond the PAPI
> > self-test makes actual use of it though, which results in an
> > obvious lack of testing.
>
> Also the self monitor stuff, perf-tool doesn't use that for obvious
> reasons.
Indeed, and that's PAPI's strong point.
We could try to utilize it via some clever LD_PRELOAD trickery?
Adding a testcase for every bug that can be triggered via tooling
would definitely be an improvement as well - those kinds of testcases
generally tend to map out the really important bits faster than an
attempt at exhaustive testing.
Thanks,
Ingo
- Re: [Qemu-devel] [F.A.Q.] perf ABI backwards and forwards compatibility, (continued)
- Re: [Qemu-devel] [F.A.Q.] perf ABI backwards and forwards compatibility, Theodore Tso, 2011/11/08
- Re: [Qemu-devel] [F.A.Q.] perf ABI backwards and forwards compatibility, Pekka Enberg, 2011/11/08
- Re: [Qemu-devel] [F.A.Q.] perf ABI backwards and forwards compatibility, Theodore Tso, 2011/11/08
- Re: [Qemu-devel] [F.A.Q.] perf ABI backwards and forwards compatibility, Pekka Enberg, 2011/11/08
- Re: [Qemu-devel] [F.A.Q.] perf ABI backwards and forwards compatibility, Frank Ch. Eigler, 2011/11/08
- Re: [Qemu-devel] [F.A.Q.] perf ABI backwards and forwards compatibility, Pekka Enberg, 2011/11/08
- Re: [Qemu-devel] [F.A.Q.] perf ABI backwards and forwards compatibility, Ingo Molnar, 2011/11/08
- Re: [Qemu-devel] [F.A.Q.] perf ABI backwards and forwards compatibility, Peter Zijlstra, 2011/11/08
- Re: [Qemu-devel] [F.A.Q.] perf ABI backwards and forwards compatibility,
Ingo Molnar <=
- Re: [Qemu-devel] [F.A.Q.] perf ABI backwards and forwards compatibility, Peter Zijlstra, 2011/11/09
- Re: [Qemu-devel] [PATCH] KVM: Add wrapper script around QEMU to test kernels, Vince Weaver, 2011/11/08
- Re: [Qemu-devel] [PATCH] KVM: Add wrapper script around QEMU to test kernels, Ingo Molnar, 2011/11/08
- Re: [Qemu-devel] [PATCH] KVM: Add wrapper script around QEMU to test kernels, Arnaldo Carvalho de Melo, 2011/11/08
- Re: [Qemu-devel] [PATCH] KVM: Add wrapper script around QEMU to test kernels, Vince Weaver, 2011/11/09
- Re: [Qemu-devel] [PATCH] KVM: Add wrapper script around QEMU to test kernels, Pekka Enberg, 2011/11/07
- Re: [Qemu-devel] [PATCH] KVM: Add wrapper script around QEMU to test kernels, Ted Ts'o, 2011/11/07
- Re: [Qemu-devel] [PATCH] KVM: Add wrapper script around QEMU to test kernels, Pekka Enberg, 2011/11/07
- Re: [Qemu-devel] [PATCH] KVM: Add wrapper script around QEMU to test kernels, Anthony Liguori, 2011/11/07
- Re: [Qemu-devel] [PATCH] KVM: Add wrapper script around QEMU to test kernels, Theodore Tso, 2011/11/07