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Date: Thu, 30 Aug 2018 15:50:27 -0300 From: Arnaldo Carvalho de Melo <acme@...nel.org> To: Steven Rostedt <rostedt@...dmis.org> Cc: Ravi Bangoria <ravi.bangoria@...ux.ibm.com>, srikar@...ux.vnet.ibm.com, oleg@...hat.com, mhiramat@...nel.org, liu.song.a23@...il.com, peterz@...radead.org, mingo@...hat.com, alexander.shishkin@...ux.intel.com, jolsa@...hat.com, namhyung@...nel.org, linux-kernel@...r.kernel.org, ananth@...ux.vnet.ibm.com, alexis.berlemont@...il.com, naveen.n.rao@...ux.vnet.ibm.com, linux-arm-kernel@...ts.infradead.org, linux-mips@...ux-mips.org, linux@...linux.org.uk, ralf@...ux-mips.org, paul.burton@...s.com Subject: Re: [PATCH v9 4/4] perf probe: Support SDT markers having reference counter (semaphore) Em Thu, Aug 30, 2018 at 02:45:31PM -0400, Steven Rostedt escreveu: > > Arnaldo, > > I'm going to be playing with some of the probe code which may conflict > with these patches, so I would like to pull these in my tree. But this > patch requires an Acked-by from you before I can pull it in. > > You OK with this? Acked-by: Arnaldo Carvalho de Melo <acme@...hat.com> > Thanks! > > -- Steve > > > On Mon, 20 Aug 2018 10:12:50 +0530 > Ravi Bangoria <ravi.bangoria@...ux.ibm.com> wrote: > > > With this, perf buildid-cache will save SDT markers with reference > > counter in probe cache. Perf probe will be able to probe markers > > having reference counter. Ex, > > > > # readelf -n /tmp/tick | grep -A1 loop2 > > Name: loop2 > > ... Semaphore: 0x0000000010020036 > > > > # ./perf buildid-cache --add /tmp/tick > > # ./perf probe sdt_tick:loop2 > > # ./perf stat -e sdt_tick:loop2 /tmp/tick > > hi: 0 > > hi: 1 > > hi: 2 > > ^C > > Performance counter stats for '/tmp/tick': > > 3 sdt_tick:loop2 > > 2.561851452 seconds time elapsed > > > > Signed-off-by: Ravi Bangoria <ravi.bangoria@...ux.ibm.com> > > Acked-by: Masami Hiramatsu <mhiramat@...nel.org> > > Acked-by: Srikar Dronamraju <srikar@...ux.vnet.ibm.com>
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