Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754554Ab3ICPM4 (ORCPT ); Tue, 3 Sep 2013 11:12:56 -0400 Received: from mx1.redhat.com ([209.132.183.28]:15454 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753030Ab3ICPMz (ORCPT ); Tue, 3 Sep 2013 11:12:55 -0400 Subject: Re: [RFC PATCH 0/2] Perf support to SDT markers From: Mark Wielaard To: Ingo Molnar Cc: Hemant , Masami Hiramatsu , linux-kernel@vger.kernel.org, srikar@linux.vnet.ibm.com, peterz@infradead.org, oleg@redhat.com, mingo@redhat.com, anton@redhat.com, systemtap@sourceware.org In-Reply-To: <20130903142159.GA27740@gmail.com> References: <20130903072944.4793.93584.stgit@hemant-fedora> <20130903082503.GA20732@gmail.com> <5225A937.2050507@hitachi.com> <5225E2C5.3080001@linux.vnet.ibm.com> <20130903142159.GA27740@gmail.com> Content-Type: text/plain; charset="UTF-8" Date: Tue, 03 Sep 2013 17:11:02 +0200 Message-ID: <1378221062.3948.86.camel@bordewijk.wildebeest.org> Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2545 Lines: 74 On Tue, 2013-09-03 at 16:21 +0200, Ingo Molnar wrote: > * Hemant wrote: > > > Here is an overview and a high-level-description: > > Thanks, looks like a pretty useful feature - especially if SDT probes are > already widely present in various server binaries on a typical Linux > distro (are they?). They are becoming fairly common, especially now that glibc has adopted them. And they were designed to be source compatible with DTRACE markers [*]. So any program that has probes for dtrace can just be recompiled on with sys/sdt.h to get them. My Fedora 19 box already has a couple of applications and libraries installed that support them: $ stap -l 'process("/usr/*/*").mark("*")' | cut -f2 -d\" | uniq -c 9 /usr/bin/Xorg 9 /usr/bin/Xvfb 4 /usr/bin/c++ 4 /usr/bin/cpp 4 /usr/bin/g++ 4 /usr/bin/gcc 1 /usr/bin/gcov 4 /usr/bin/gfortran 3 /usr/bin/qemu-ga 75 /usr/bin/qemu-img 75 /usr/bin/qemu-io 75 /usr/bin/qemu-nbd 575 /usr/bin/qemu-system-i386 575 /usr/bin/qemu-system-x86_64 29 /usr/bin/stap 3 /usr/bin/stapdyn 3 /usr/bin/virtfs-proxy-helper 4 /usr/bin/x86_64-redhat-linux-c++ 4 /usr/bin/x86_64-redhat-linux-g++ 4 /usr/bin/x86_64-redhat-linux-gcc 13 /usr/lib/ld-2.17.so 1 /usr/lib/libanl-2.17.so 5 /usr/lib/libc-2.17.so 1 /usr/lib/libgcc_s-4.8.1-20130603.so.1 22 /usr/lib/libpthread-2.17.so 1 /usr/lib/librt-2.17.so 3 /usr/lib/libstdc++.so.6.0.18 13 /usr/lib64/ld-2.17.so 1 /usr/lib64/libanl-2.17.so 5 /usr/lib64/libc-2.17.so 3 /usr/lib64/libcacard.so.0.0.0 1 /usr/lib64/libgcc_s-4.8.1-20130603.so.1 6 /usr/lib64/libglib-2.0.so.0.3600.3 11 /usr/lib64/libgobject-2.0.so.0.3600.3 4 /usr/lib64/libm-2.17.so 23 /usr/lib64/libpthread-2.17.so 2 /usr/lib64/libpython2.7.so.1.0 2 /usr/lib64/libpython3.3m.so.1.0 1 /usr/lib64/librt-2.17.so 3 /usr/lib64/libstdc++.so.6.0.18 15 /usr/lib64/libtcl8.5.so 41 /usr/lib64/libvirt.so.0.1000.5 37 /usr/libexec/libvirt_lxc 12 /usr/sbin/ldconfig 3 /usr/sbin/libvirtd 34 /usr/sbin/prelink 12 /usr/sbin/sln 37 /usr/sbin/virtlockd [*] http://tromey.com/blog/?p=687 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/