Messages in this thread | | | Date | Thu, 30 Aug 2018 14:45:31 -0400 | From | Steven Rostedt <> | Subject | Re: [PATCH v9 4/4] perf probe: Support SDT markers having reference counter (semaphore) |
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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?
Thanks!
-- Steve
On Mon, 20 Aug 2018 10:12:50 +0530 Ravi Bangoria <ravi.bangoria@linux.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@linux.ibm.com> > Acked-by: Masami Hiramatsu <mhiramat@kernel.org> > Acked-by: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
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