From: David Ahern <dsahern@gmail.com>
To: Adrian Hunter <adrian.hunter@intel.com>,
Arnaldo Carvalho de Melo <acme@ghostprotocols.net>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>,
Ingo Molnar <mingo@redhat.com>,
linux-kernel@vger.kernel.org,
Frederic Weisbecker <fweisbec@gmail.com>,
Jiri Olsa <jolsa@redhat.com>, Mike Galbraith <efault@gmx.de>,
Namhyung Kim <namhyung@gmail.com>,
Paul Mackerras <paulus@samba.org>,
Stephane Eranian <eranian@google.com>
Subject: Re: [PATCH 19/19] perf tools: allow non-matching sample types
Date: Fri, 18 Oct 2013 08:25:13 -0600 [thread overview]
Message-ID: <526144C9.4080004@gmail.com> (raw)
In-Reply-To: <1382099356-4918-20-git-send-email-adrian.hunter@intel.com>
On 10/18/13 6:29 AM, Adrian Hunter wrote:
> For kernels that do not support PERF_SAMPLE_IDENTIFIER,
> sample types need not be identical to determine
> the sample id from the event. Only the position
> of the sample id needs to be the same.
>
> Compatible sample types are ones in which the bits
> defined by PERF_COMPAT_MASK are the same.
> 'perf_evlist__config()' forces sample types to be
> compatible on that basis.
Arnaldo and I have discussed adding callchain handling to perf-trace. To
do that we only need stack data (including IP) for one event -- eg,
raw_syscalls:sys_enter. That means raw_syscalls:sys_enter and
raw_syscalls:sys_exit will have different attributes set - including
ones in the MASK.
David
next prev parent reply other threads:[~2013-10-18 14:25 UTC|newest]
Thread overview: 54+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-10-18 12:28 [PATCH 00/19] perf tools: fixes and tweaks Adrian Hunter
2013-10-18 12:28 ` [PATCH 01/19] perf evsel: Add missing 'mmap2' from debug print Adrian Hunter
2013-10-23 7:53 ` [tip:perf/core] " tip-bot for Adrian Hunter
2013-10-18 12:28 ` [PATCH 02/19] perf evsel: Add a debug print if perf_event_open fails Adrian Hunter
2013-10-18 12:29 ` [PATCH 03/19] perf record: Improve write_output error message Adrian Hunter
2013-10-20 20:43 ` Jiri Olsa
2013-10-21 6:07 ` Adrian Hunter
2013-10-21 8:48 ` Jiri Olsa
2013-10-23 7:53 ` [tip:perf/core] " tip-bot for Adrian Hunter
2013-10-18 12:29 ` [PATCH 04/19] perf evsel: Add missing decrement in id sample parsing Adrian Hunter
2013-10-20 20:44 ` Jiri Olsa
2013-10-23 7:53 ` [tip:perf/core] " tip-bot for Adrian Hunter
2013-10-18 12:29 ` [PATCH 05/19] perf session: Add missing sample flush for piped events Adrian Hunter
2013-10-20 20:45 ` Jiri Olsa
2013-10-23 7:53 ` [tip:perf/core] " tip-bot for Adrian Hunter
2013-10-18 12:29 ` [PATCH 06/19] perf session: Add missing members to perf_event__attr_swap() Adrian Hunter
2013-10-20 20:47 ` Jiri Olsa
2013-10-23 7:53 ` [tip:perf/core] " tip-bot for Adrian Hunter
2013-10-18 12:29 ` [PATCH 07/19] perf script: Set up output options for in-stream attributes Adrian Hunter
2013-10-18 13:30 ` David Ahern
2013-10-18 14:32 ` Arnaldo Carvalho de Melo
2013-10-22 7:35 ` Adrian Hunter
2013-10-18 12:29 ` [PATCH 08/19] perf inject: Do not repipe attributes to a perf.data file Adrian Hunter
2013-10-18 12:29 ` [PATCH 09/19] perf tools: Fix 32-bit cross build Adrian Hunter
2013-10-20 20:42 ` Jiri Olsa
2013-10-21 5:53 ` Adrian Hunter
2013-10-21 8:46 ` Jiri Olsa
2013-10-21 9:02 ` Adrian Hunter
2013-10-21 14:12 ` Arnaldo Carvalho de Melo
2013-10-21 18:29 ` Adrian Hunter
2013-10-18 12:29 ` [PATCH 10/19] perf evlist: Fix 32-bit build error Adrian Hunter
2013-10-23 7:53 ` [tip:perf/core] " tip-bot for Adrian Hunter
2013-10-18 12:29 ` [PATCH 11/19] perf tools: Fix test_on_exit for 32-bit build Adrian Hunter
2013-10-23 7:53 ` [tip:perf/core] " tip-bot for Adrian Hunter
2013-10-18 12:29 ` [PATCH 12/19] perf tools: Fix bench/numa.c " Adrian Hunter
2013-10-23 7:54 ` [tip:perf/core] " tip-bot for Adrian Hunter
2013-10-18 12:29 ` [PATCH 13/19] perf tools: Fix libunwind build and feature detection " Adrian Hunter
2013-10-20 20:43 ` Jiri Olsa
2013-10-21 14:14 ` Arnaldo Carvalho de Melo
2013-10-22 7:40 ` Adrian Hunter
2013-10-18 12:29 ` [PATCH 14/19] perf evlist: Add a debug print if event buffer mmap fails Adrian Hunter
2013-10-20 20:43 ` Jiri Olsa
2013-10-18 12:29 ` [PATCH 15/19] perf tools: fix perf_evlist__mmap comments Adrian Hunter
2013-10-23 7:54 ` [tip:perf/core] perf evlist: Fix " tip-bot for Adrian Hunter
2013-10-18 12:29 ` [PATCH 16/19] perf tools: factor out duplicated evlist mmap code Adrian Hunter
2013-10-23 7:54 ` [tip:perf/core] perf evlist: Factor out duplicated " tip-bot for Adrian Hunter
2013-10-18 12:29 ` [PATCH 17/19] perf script: print addr by default for BTS Adrian Hunter
2013-10-18 18:20 ` David Ahern
2013-10-23 7:54 ` [tip:perf/core] perf script: Print " tip-bot for Adrian Hunter
2013-10-18 12:29 ` [PATCH 18/19] perf record: add an option to force per-cpu mmaps Adrian Hunter
2013-10-18 12:29 ` [PATCH 19/19] perf tools: allow non-matching sample types Adrian Hunter
2013-10-18 14:25 ` David Ahern [this message]
2013-10-18 14:50 ` Adrian Hunter
2013-10-18 15:03 ` David Ahern
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