From: Steven Rostedt <rostedt@goodmis.org>
To: acme@kernel.org
Cc: Ravi Bangoria <ravi.bangoria@linux.ibm.com>,
srikar@linux.vnet.ibm.com, oleg@redhat.com, mhiramat@kernel.org,
liu.song.a23@gmail.com, peterz@infradead.org, mingo@redhat.com,
alexander.shishkin@linux.intel.com, jolsa@redhat.com,
namhyung@kernel.org, linux-kernel@vger.kernel.org,
ananth@linux.vnet.ibm.com, alexis.berlemont@gmail.com,
naveen.n.rao@linux.vnet.ibm.com,
linux-arm-kernel@lists.infradead.org, linux-mips@linux-mips.org,
linux@armlinux.org.uk, ralf@linux-mips.org, paul.burton@mips.com
Subject: Re: [PATCH v9 4/4] perf probe: Support SDT markers having reference counter (semaphore)
Date: Thu, 30 Aug 2018 14:45:31 -0400 [thread overview]
Message-ID: <20180830144531.3011e185@gandalf.local.home> (raw)
In-Reply-To: <20180820044250.11659-5-ravi.bangoria@linux.ibm.com>
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>
next prev parent reply other threads:[~2018-08-30 18:45 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-08-20 4:42 [PATCH v9 0/4] Uprobes: Support SDT markers having reference count (semaphore) Ravi Bangoria
2018-08-20 4:42 ` [PATCH v9 1/4] " Ravi Bangoria
2018-08-20 5:53 ` Song Liu
2018-08-21 21:35 ` Song Liu
2018-08-22 12:39 ` Srikar Dronamraju
2018-08-28 19:07 ` Song Liu
2018-08-28 19:34 ` Steven Rostedt
2018-08-20 4:42 ` [PATCH v9 2/4] Uprobes/sdt: Prevent multiple reference counter for same uprobe Ravi Bangoria
2018-08-20 5:54 ` Song Liu
2018-08-21 21:35 ` Song Liu
2018-08-20 4:42 ` [PATCH v9 3/4] trace_uprobe/sdt: " Ravi Bangoria
2018-08-21 20:46 ` Song Liu
2018-08-20 4:42 ` [PATCH v9 4/4] perf probe: Support SDT markers having reference counter (semaphore) Ravi Bangoria
2018-08-21 21:33 ` Song Liu
2018-08-30 18:45 ` Steven Rostedt [this message]
2018-08-30 18:50 ` Arnaldo Carvalho de Melo
2018-08-30 19:43 ` Steven Rostedt
2018-08-20 17:38 ` [PATCH v9 0/4] Uprobes: Support SDT markers having reference count (semaphore) Song Liu
2018-08-21 4:42 ` Ravi Bangoria
2018-08-21 4:55 ` Song Liu
2018-08-21 5:23 ` Ravi Bangoria
2018-08-21 6:20 ` Ravi Bangoria
2018-08-21 7:34 ` Naveen N. Rao
2018-08-21 11:58 ` Ravi Bangoria
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