From mboxrd@z Thu Jan 1 00:00:00 1970 From: Peter Zijlstra Subject: Re: [F.A.Q.] perf ABI backwards and forwards compatibility Date: Wed, 09 Nov 2011 11:05:29 +0100 Message-ID: <1320833129.13360.9.camel@twins> References: <20111107175942.GA9395@elte.hu> <20111107203514.GG24234@thunk.org> <20111108102235.GA1241@elte.hu> <20111108113150.GA13195@redhat.com> <20111108121501.GA1022@elte.hu> <1320754825.11519.0.camel@twins> <20111108125932.GC1022@elte.hu> Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Cc: Alexander Graf , Ted Ts'o , Arnaldo Carvalho de Melo , "kvm@vger.kernel.org list" , qemu-devel Developers , Vince Weaver , "linux-kernel@vger.kernel.org List" , Pekka Enberg , Blue Swirl , "Frank Ch. Eigler" , Pekka Enberg , Avi Kivity , =?ISO-8859-1?Q?Am=E9rico?= Wang , Linus Torvalds To: Ingo Molnar Return-path: In-Reply-To: <20111108125932.GC1022@elte.hu> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+gceq-qemu-devel=gmane.org@nongnu.org Sender: qemu-devel-bounces+gceq-qemu-devel=gmane.org@nongnu.org List-Id: kvm.vger.kernel.org On Tue, 2011-11-08 at 13:59 +0100, Ingo Molnar wrote: >=20 > > Also the self monitor stuff, perf-tool doesn't use that for obvious=20 > > reasons. >=20 > Indeed, and that's PAPI's strong point. >=20 > We could try to utilize it via some clever LD_PRELOAD trickery? Wouldn't be really meaningful, a perf-test case that covers it would be much saner.