Messages in this thread | | | Date | Tue, 3 Sep 2013 21:24:11 +0200 | From | Ingo Molnar <> | Subject | Re: [RFC PATCH 0/2] Perf support to SDT markers |
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* Mark Wielaard <mjw@redhat.com> wrote:
> On Tue, 2013-09-03 at 16:21 +0200, Ingo Molnar wrote: > > * Hemant <hkshaw@linux.vnet.ibm.com> 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
Nice!
Thanks,
Ingo
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