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From: Namhyung Kim <namhyung@kernel.org>
To: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>,
	Ingo Molnar <mingo@kernel.org>,
	Peter Zijlstra <a.p.zijlstra@chello.nl>,
	Jiri Olsa <jolsa@redhat.com>, LKML <linux-kernel@vger.kernel.org>,
	Adrian Hunter <adrian.hunter@intel.com>,
	Stephane Eranian <eranian@google.com>,
	Andi Kleen <andi@firstfloor.org>, David Ahern <dsahern@gmail.com>
Subject: Re: [PATCH 12/38] perf tools: Introduce thread__comm_time() helpers
Date: Tue, 10 Mar 2015 15:55:28 +0900	[thread overview]
Message-ID: <20150310065528.GE943@sejong> (raw)
In-Reply-To: <20150306124805.GZ5187@kernel.org>

Hi Arnaldo,

On Fri, Mar 06, 2015 at 09:48:05AM -0300, Arnaldo Carvalho de Melo wrote:
> Em Fri, Mar 06, 2015 at 01:38:06PM +0900, Namhyung Kim escreveu:
> > On Thu, Mar 05, 2015 at 05:08:56PM +0100, Frederic Weisbecker wrote:
> > > On Wed, Mar 04, 2015 at 09:02:55AM +0900, Namhyung Kim wrote:
> > > > On Tue, Mar 03, 2015 at 05:28:40PM +0100, Frederic Weisbecker wrote:
> > > > > On Tue, Mar 03, 2015 at 12:07:24PM +0900, Namhyung Kim wrote:
> > > > > > When data file indexing is enabled, it processes all task, comm and mmap
> > > > > > events first and then goes to the sample events.  So all it sees is the
> > > > > > last comm of a thread although it has information at the time of sample.
> 
> > > > > > Sort thread's comm by time so that it can find appropriate comm at the
> > > > > > sample time.  The thread__comm_time() will mostly work even if
> > > > > > PERF_SAMPLE_TIME bit is off since in that case, sample->time will be
> > > > > > -1 so it'll take the last comm anyway.
> 
> > > > > > +++ b/tools/perf/util/thread.c
> > > > > > @@ -103,6 +103,21 @@ struct comm *thread__exec_comm(const struct thread *thread)
> > > > > >  	return last;
> > > > > > +struct comm *thread__comm_time(const struct thread *thread, u64 timestamp)
> 
> > > > > Usually thread__comm_foo() would suggest that we return the "foo" from a thread comm.
> > > > > For example thread__comm_len() returns the len of the last thread comm.
> > > > > thread__comm_str() returns the string of the last thread comm.
> 
> > > > Ah, okay.
> 
> > > I mean, that's just an impression, others may have a different one :o)
> > 
> > Right.  Although I agree with your idea of function naming, I'm not
> > sure it's worth changing every function call site for this - and for
> > similar machine__find(new)_thread()_time.
> 
> So you need to find a thread using a new search key, namely (pid, tid,
> time), is that right?

Right.

> 
> I.e. you process all the meta events so that you can have the lifetime
> events for the whole session, right?

Exactly. :)


> 
> If that is the case, then I think we should keep the existing functions
> as is, for tools not yet converted to this new way of processing
> samples, be it just because there was no time yet to do it or because we
> may find that it is not adequate for some tools, and introduce the new
> API, that takes the time as part of the key, so, in addition to:
> 
> 
> 	machine__find_thread
> 	machine__findnew_thread
> 
> namely:
> 
> 	machine__find_thread_by_time
> 	machine__findnew_thread_by_time
> 
> But thread__comm_time() for me is to get the time of most recent comm
> for that thread. I.e. I agree with Frédéric, if what you want is to
> _find_ the comm for a specific key, i.e. time, then I think it should
> be:
> 
>         thread__find_comm_by_time(thread, tstamp)

I'm okay with it, will change!


> 
> Ah, how do you manage the thread rbtree? First a search by pid/tid and
> then another by time? Or put it all together and then
> machine__find_thread becomes just a:
> 
> struct thread *machine__find_thread(machine, pid, tid)
> {
> 	return machine__find_thread_by_time(machine, pid, tid, -1);
> }
> 
> And it returns the most recent thread for that pid/tid?

Yeah, but there's an issue with multi-thread access.  The find_thread
API is good but findnew_thread API is a problem since we need to
protect creation of new thread from multiple concurrent accesses.  So
basically it needs a lock but since it's in a hotpath it'd hurt the
performance IMHO.

So I separate the API - existing functions should be called in a
serial execution only.  The new APIs allow concurrent accesses in that
it searches (current) thread tree first and then searches dead thread
tree if not found.  Almost all of thread search should success at this
stage.  Since these operations don't change anything, they don't
require locking.

For occasional search failure, it introduced a new tree (called
'missing tree') protected with a lock.  Threads are added only if
they're not found in the normal (current + dead) tree.


> 
> I.e.  machine__remove_thread() becomes a noop for such use cases and we
> never delete a struct thread instance?

Right.  I just converted to keep removed threads in a rbtree as
they can be quite large in a long session.

Thanks,
Namhyung


> 
> - Arnaldo
> --
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  reply	other threads:[~2015-03-10  7:01 UTC|newest]

Thread overview: 221+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-03-03  3:07 [RFC/PATCHSET 00/38] perf tools: Speed-up perf report by using multi thread (v3) Namhyung Kim
2015-03-03  3:07 ` [PATCH 01/38] perf tools: Use a software dummy event to track task/mmap events Namhyung Kim
2015-03-03  3:07 ` [PATCH 02/38] perf tools: Add rm_rf() utility function Namhyung Kim
2015-03-03  3:07 ` [PATCH 03/38] perf tools: Introduce copyfile_offset() function Namhyung Kim
2015-03-04 14:58   ` Jiri Olsa
2015-03-03  3:07 ` [PATCH 04/38] perf tools: Create separate mmap for dummy tracking event Namhyung Kim
2015-03-03  3:07 ` [PATCH 05/38] perf tools: Introduce perf_evlist__mmap_track() Namhyung Kim
2015-03-03  3:07 ` [PATCH 06/38] perf tools: Add HEADER_DATA_INDEX feature Namhyung Kim
2015-03-03  3:07 ` [PATCH 07/38] perf tools: Handle indexed data file properly Namhyung Kim
2015-03-04 16:19   ` Jiri Olsa
2015-03-06  4:17     ` Namhyung Kim
2015-03-03  3:07 ` [PATCH 08/38] perf record: Add --index option for building index table Namhyung Kim
2015-03-05  7:56   ` Jiri Olsa
2015-03-06  4:19     ` Namhyung Kim
2015-03-03  3:07 ` [PATCH 09/38] perf report: Skip dummy tracking event Namhyung Kim
2015-03-03  3:07 ` [PATCH 10/38] perf tools: Pass session arg to perf_event__preprocess_sample() Namhyung Kim
2015-03-03 13:59   ` Arnaldo Carvalho de Melo
2015-03-03 14:18     ` Namhyung Kim
2015-03-03  3:07 ` [PATCH 11/38] perf script: Pass session arg to ->process_event callback Namhyung Kim
2015-03-03  3:07 ` [PATCH 12/38] perf tools: Introduce thread__comm_time() helpers Namhyung Kim
2015-03-03 16:28   ` Frederic Weisbecker
2015-03-04  0:02     ` Namhyung Kim
2015-03-05 16:08       ` Frederic Weisbecker
2015-03-06  4:38         ` Namhyung Kim
2015-03-06 12:48           ` Arnaldo Carvalho de Melo
2015-03-10  6:55             ` Namhyung Kim [this message]
2015-03-03  3:07 ` [PATCH 13/38] perf tools: Add a test case for thread comm handling Namhyung Kim
2015-03-03  3:07 ` [PATCH 14/38] perf tools: Use thread__comm_time() when adding hist entries Namhyung Kim
2015-03-03  3:07 ` [PATCH 15/38] perf tools: Convert dead thread list into rbtree Namhyung Kim
2015-03-03  3:07 ` [PATCH 16/38] perf tools: Introduce machine__find*_thread_time() Namhyung Kim
2015-03-03  3:07 ` [PATCH 17/38] perf tools: Add a test case for timed thread handling Namhyung Kim
2015-03-03  3:07 ` [PATCH 18/38] perf tools: Reducing arguments of hist_entry_iter__add() Namhyung Kim
2015-03-03  3:07 ` [PATCH 19/38] perf tools: Pass session to hist_entry_iter struct Namhyung Kim
2015-03-03  3:07 ` [PATCH 20/38] perf tools: Maintain map groups list in a leader thread Namhyung Kim
2015-03-03  3:07 ` [PATCH 21/38] perf tools: Introduce session__find_addr_location() and friends Namhyung Kim
2015-03-03  3:07 ` [PATCH 22/38] perf callchain: Use " Namhyung Kim
2015-03-03 14:01   ` Arnaldo Carvalho de Melo
2015-03-03  3:07 ` [PATCH 23/38] perf tools: Add a test case for timed map groups handling Namhyung Kim
2015-03-03  3:07 ` [PATCH 24/38] perf tools: Protect dso symbol loading using a mutex Namhyung Kim
2015-03-03  3:07 ` [PATCH 25/38] perf tools: Protect dso cache tree using dso->lock Namhyung Kim
2015-03-03  3:07 ` [PATCH 26/38] perf tools: Protect dso cache fd with a mutex Namhyung Kim
2015-03-03  3:07 ` [PATCH 27/38] perf callchain: Maintain libunwind's address space in map_groups Namhyung Kim
2015-03-03  3:07 ` [PATCH 28/38] perf tools: Add dso__data_get/put_fd() Namhyung Kim
2015-03-03  3:07 ` [PATCH 29/38] perf session: Pass struct events stats to event processing functions Namhyung Kim
2015-03-03  3:07 ` [PATCH 30/38] perf hists: Pass hists struct to hist_entry_iter struct Namhyung Kim
2015-03-03  3:07 ` [PATCH 31/38] perf tools: Move BUILD_ID_SIZE definition to perf.h Namhyung Kim
2015-03-03  3:07 ` [PATCH 32/38] perf report: Parallelize perf report using multi-thread Namhyung Kim
2015-03-03  3:07 ` [PATCH 33/38] perf tools: Add missing_threads rb tree Namhyung Kim
2015-03-03  3:07 ` [PATCH 34/38] perf record: Synthesize COMM event for a command line workload Namhyung Kim
2015-03-03  3:07 ` [PATCH 35/38] perf tools: Fix progress ui to support multi thread Namhyung Kim
2015-03-03  3:07 ` [PATCH 36/38] perf report: Add --multi-thread option and config item Namhyung Kim
2015-03-03  3:07 ` [PATCH 37/38] perf session: Handle index files generally Namhyung Kim
2015-03-03  3:07 ` [PATCH 38/38] perf data: Implement 'index' subcommand Namhyung Kim
  -- strict thread matches above, loose matches on Subject: below --
2015-05-18  0:30 [RFC/PATCHSET 00/40] perf tools: Speed-up perf report by using multi thread (v4) Namhyung Kim
2015-05-18  0:30 ` [PATCH 01/40] perf tools: Use a software dummy event to track task/mmap events Namhyung Kim
2015-05-18  0:30 ` [PATCH 02/40] perf tools: Add rm_rf() utility function Namhyung Kim
2015-05-18  0:30 ` [PATCH 03/40] perf tools: Introduce copyfile_offset() function Namhyung Kim
2015-05-18 12:57   ` Arnaldo Carvalho de Melo
2015-05-19  6:20     ` Namhyung Kim
2015-05-20 12:24   ` [tip:perf/core] " tip-bot for Namhyung Kim
2015-05-18  0:30 ` [PATCH 04/40] perf tools: Create separate mmap for dummy tracking event Namhyung Kim
2015-05-18 18:07   ` Jiri Olsa
2015-05-19  6:24     ` Namhyung Kim
2015-05-18  0:30 ` [PATCH 05/40] perf tools: Introduce perf_evlist__mmap_track() Namhyung Kim
2015-05-18 18:09   ` Jiri Olsa
2015-05-19  6:28     ` Namhyung Kim
2015-05-18  0:30 ` [PATCH 06/40] perf tools: Add HEADER_DATA_INDEX feature Namhyung Kim
2015-05-18 18:17   ` Jiri Olsa
2015-05-19  6:34     ` Namhyung Kim
2015-05-18  0:30 ` [PATCH 07/40] perf tools: Handle indexed data file properly Namhyung Kim
2015-05-18 18:37   ` Jiri Olsa
2015-05-19  6:40     ` Namhyung Kim
2015-05-18  0:30 ` [PATCH 08/40] perf record: Add --index option for building index table Namhyung Kim
2015-05-18  0:30 ` [PATCH 09/40] perf report: Skip dummy tracking event Namhyung Kim
2015-05-18  0:30 ` [PATCH 10/40] perf tools: Introduce thread__comm(_str)_by_time() helpers Namhyung Kim
2015-05-18  0:30 ` [PATCH 11/40] perf tools: Add a test case for thread comm handling Namhyung Kim
2015-05-18 19:29   ` Jiri Olsa
2015-05-19  6:42     ` Namhyung Kim
2015-05-18  0:30 ` [PATCH 12/40] perf tools: Use thread__comm_by_time() when adding hist entries Namhyung Kim
2015-05-18  0:30 ` [PATCH 13/40] perf tools: Convert dead thread list into rbtree Namhyung Kim
2015-05-18 19:34   ` Jiri Olsa
2015-05-19  6:45     ` Namhyung Kim
2015-05-18  0:30 ` [PATCH 14/40] perf tools: Introduce machine__find*_thread_by_time() Namhyung Kim
2015-05-18 19:50   ` Jiri Olsa
2015-05-18 19:56     ` Jiri Olsa
2015-05-19  6:57     ` Namhyung Kim
2015-05-18  0:30 ` [PATCH 15/40] perf tools: Add a test case for timed thread handling Namhyung Kim
2015-05-18  0:30 ` [PATCH 16/40] perf tools: Reducing arguments of hist_entry_iter__add() Namhyung Kim
2015-05-18 12:55   ` Arnaldo Carvalho de Melo
2015-05-19  7:01     ` Namhyung Kim
2015-05-19  8:04       ` [PATCH] " Namhyung Kim
2015-05-19 14:03         ` Arnaldo Carvalho de Melo
2015-05-27 16:47         ` [tip:perf/core] perf hists: " tip-bot for Namhyung Kim
2015-05-18  0:30 ` [PATCH 17/40] perf tools: Maintain map groups list in a leader thread Namhyung Kim
2015-05-18  0:30 ` [PATCH 18/40] perf tools: Introduce thread__find_addr_location_by_time() and friends Namhyung Kim
2015-05-18  0:30 ` [PATCH 19/40] perf callchain: Use " Namhyung Kim
2015-05-18  0:30 ` [PATCH 20/40] perf tools: Add a test case for timed map groups handling Namhyung Kim
2015-05-18  0:30 ` [PATCH 21/40] perf tools: Save timestamp of a map creation Namhyung Kim
2015-05-18  0:30 ` [PATCH 22/40] perf tools: Introduce map_groups__{insert,find}_by_time() Namhyung Kim
2015-05-18  0:30 ` [PATCH 23/40] perf tools: Use map_groups__find_addr_by_time() Namhyung Kim
2015-05-18  0:30 ` [PATCH 24/40] perf tools: Add testcase for managing maps with time Namhyung Kim
2015-05-18  0:30 ` [PATCH 25/40] perf tools: Protect dso symbol loading using a mutex Namhyung Kim
2015-05-20 12:25   ` [tip:perf/core] perf symbols: " tip-bot for Namhyung Kim
2015-05-18  0:30 ` [PATCH 26/40] perf tools: Protect dso cache tree using dso->lock Namhyung Kim
2015-05-20 12:25   ` [tip:perf/core] perf symbols: Protect dso cache tree using dso-> lock tip-bot for Namhyung Kim
2015-05-18  0:30 ` [PATCH 27/40] perf tools: Protect dso cache fd with a mutex Namhyung Kim
2015-05-20 12:25   ` [tip:perf/core] " tip-bot for Namhyung Kim
2015-05-18  0:30 ` [PATCH 28/40] perf callchain: Maintain libunwind's address space in map_groups Namhyung Kim
2015-05-18  0:30 ` [PATCH 29/40] perf tools: Add dso__data_get/put_fd() Namhyung Kim
2015-05-18  0:30 ` [PATCH 30/40] perf session: Pass struct events stats to event processing functions Namhyung Kim
2015-05-18  0:30 ` [PATCH 31/40] perf hists: Pass hists struct to hist_entry_iter struct Namhyung Kim
2015-05-18  0:30 ` [PATCH 32/40] perf tools: Move BUILD_ID_SIZE definition to perf.h Namhyung Kim
2015-05-18  0:30 ` [PATCH 33/40] perf session: Separate struct machines from session Namhyung Kim
2015-05-18 12:52   ` Arnaldo Carvalho de Melo
2015-05-19  7:28     ` Namhyung Kim
2015-05-19 22:46       ` Arnaldo Carvalho de Melo
2015-05-19 23:58         ` Namhyung Kim
2015-05-28  2:39           ` [RFC 0/2] " Namhyung Kim
2015-05-28  2:39             ` [PATCH 1/2] perf tools: Introduce machines__new/delete() Namhyung Kim
2015-05-28  2:39             ` [PATCH 2/2] perf session: Separate struct machines from session Namhyung Kim
2015-05-18  0:30 ` [PATCH 34/40] perf report: Parallelize perf report using multi-thread Namhyung Kim
2015-05-19 10:12   ` Jiri Olsa
2015-05-19 14:58     ` Namhyung Kim
2015-05-18  0:30 ` [PATCH 35/40] perf record: Synthesize COMM event for a command line workload Namhyung Kim
2015-05-18 12:45   ` Arnaldo Carvalho de Melo
2015-05-19  7:46     ` Namhyung Kim
2015-05-19 14:02       ` Arnaldo Carvalho de Melo
2015-05-19 15:12         ` Namhyung Kim
2015-05-19 16:30           ` Arnaldo Carvalho de Melo
2015-05-19 19:49           ` Jiri Olsa
2015-05-19 20:18             ` Arnaldo Carvalho de Melo
2015-05-19 23:56               ` Namhyung Kim
2015-05-20  0:22                 ` Arnaldo Carvalho de Melo
2015-05-20  0:56                   ` Namhyung Kim
2015-05-20  1:16                     ` Arnaldo Carvalho de Melo
2015-05-18  0:30 ` [PATCH 36/40] perf tools: Fix progress ui to support multi thread Namhyung Kim
2015-05-18  0:30 ` [PATCH 37/40] perf report: Add --multi-thread option and config item Namhyung Kim
2015-05-18  0:30 ` [PATCH 38/40] perf session: Handle index files generally Namhyung Kim
2015-05-19 22:27   ` David Ahern
2015-05-20  0:05     ` Namhyung Kim
2015-05-20  7:20       ` [PATCH 41/40] perf report: Add --num-thread option to control number of thread Namhyung Kim
2015-05-18  0:30 ` [PATCH 39/40] perf data: Implement 'index' subcommand Namhyung Kim
2015-05-18  0:30 ` [PATCH Not-for-merge 40/40] perf tools: Disable thread refcount due to bug Namhyung Kim
2015-05-18  1:23   ` Arnaldo Carvalho de Melo
2015-05-18 12:21     ` Namhyung Kim
2015-05-18 12:30       ` Arnaldo Carvalho de Melo
2015-01-29  8:06 [RFC/PATCHSET 00/42] perf tools: Speed-up perf report by using multi thread (v2) Namhyung Kim
2015-01-29  8:06 ` [PATCH 01/42] perf tools: Support to read compressed module from build-id cache Namhyung Kim
2015-01-30 14:32   ` Jiri Olsa
2015-02-02 15:03     ` Namhyung Kim
2015-01-30 18:33   ` [tip:perf/core] perf symbols: " tip-bot for Namhyung Kim
2015-01-29  8:06 ` [PATCH 02/42] perf tools: Do not use __perf_session__process_events() directly Namhyung Kim
2015-01-30 18:32   ` [tip:perf/core] " tip-bot for Namhyung Kim
2015-01-29  8:06 ` [PATCH 03/42] perf record: Show precise number of samples Namhyung Kim
2015-01-30 18:32   ` [tip:perf/core] " tip-bot for Namhyung Kim
2015-01-29  8:06 ` [PATCH 04/42] perf header: Set header version correctly Namhyung Kim
2015-01-30 18:33   ` [tip:perf/core] " tip-bot for Namhyung Kim
2015-01-29  8:06 ` [PATCH 05/42] perf tools: Set attr.task bit for a tracking event Namhyung Kim
2015-01-30 18:33   ` [tip:perf/core] perf evsel: " tip-bot for Namhyung Kim
2015-01-29  8:06 ` [PATCH 06/42] perf tools: Use a software dummy event to track task/mmap events Namhyung Kim
2015-01-29  8:06 ` [PATCH 07/42] perf tools: Use perf_data_file__fd() consistently Namhyung Kim
2015-01-30 18:33   ` [tip:perf/core] " tip-bot for Namhyung Kim
2015-01-29  8:06 ` [PATCH 08/42] perf tools: Add rm_rf() utility function Namhyung Kim
2015-01-30 15:02   ` Jiri Olsa
2015-05-20 12:24     ` [tip:perf/core] " tip-bot for Namhyung Kim
2015-01-29  8:06 ` [PATCH 09/42] perf tools: Introduce copyfile_offset() function Namhyung Kim
2015-01-29  8:06 ` [PATCH 10/42] perf tools: Create separate mmap for dummy tracking event Namhyung Kim
2015-01-29  8:06 ` [PATCH 11/42] perf tools: Introduce perf_evlist__mmap_track() Namhyung Kim
2015-01-29  8:06 ` [PATCH 12/42] perf tools: Add HEADER_DATA_INDEX feature Namhyung Kim
2015-01-29  8:06 ` [PATCH 13/42] perf tools: Handle indexed data file properly Namhyung Kim
2015-01-29  8:06 ` [PATCH 14/42] perf record: Add --index option for building index table Namhyung Kim
2015-02-01 18:06   ` Jiri Olsa
2015-02-02  8:34     ` Adrian Hunter
2015-02-02  9:15       ` Jiri Olsa
2015-02-02  9:52         ` Adrian Hunter
2015-02-02 10:05           ` Jiri Olsa
2015-02-02 12:07             ` Adrian Hunter
2015-02-02 12:13               ` Jiri Olsa
2015-02-02 14:56                 ` Namhyung Kim
2015-02-02 17:30                   ` Jiri Olsa
2015-02-03  8:42                     ` Adrian Hunter
2015-01-29  8:06 ` [PATCH 15/42] perf report: Skip dummy tracking event Namhyung Kim
2015-01-29  8:06 ` [PATCH 16/42] perf tools: Pass session arg to perf_event__preprocess_sample() Namhyung Kim
2015-01-29  8:06 ` [PATCH 17/42] perf script: Pass session arg to ->process_event callback Namhyung Kim
2015-01-29  8:06 ` [PATCH 18/42] perf tools: Introduce thread__comm_time() helpers Namhyung Kim
2015-01-29  8:07 ` [PATCH 19/42] perf tools: Add a test case for thread comm handling Namhyung Kim
2015-01-29  8:07 ` [PATCH 20/42] perf tools: Use thread__comm_time() when adding hist entries Namhyung Kim
2015-01-29  8:07 ` [PATCH 21/42] perf tools: Convert dead thread list into rbtree Namhyung Kim
2015-01-29  8:07 ` [PATCH 22/42] perf tools: Introduce machine__find*_thread_time() Namhyung Kim
2015-01-29  8:07 ` [PATCH 23/42] perf tools: Add a test case for timed thread handling Namhyung Kim
2015-01-29  8:07 ` [PATCH 24/42] perf tools: Maintain map groups list in a leader thread Namhyung Kim
2015-01-29  8:07 ` [PATCH 25/42] perf tools: Introduce thread__find_addr_location_time() and friends Namhyung Kim
2015-01-29  8:07 ` [PATCH 26/42] perf tools: Add a test case for timed map groups handling Namhyung Kim
2015-01-29  8:07 ` [PATCH 27/42] perf tools: Protect dso symbol loading using a mutex Namhyung Kim
2015-01-29 12:34   ` Arnaldo Carvalho de Melo
2015-01-29 12:48     ` Namhyung Kim
2015-01-29  8:07 ` [PATCH 28/42] perf tools: Protect dso cache tree using dso->lock Namhyung Kim
2015-01-29  8:07 ` [PATCH 29/42] perf tools: Protect dso cache fd with a mutex Namhyung Kim
2015-01-29 12:31   ` Arnaldo Carvalho de Melo
2015-01-29 13:19     ` Namhyung Kim
2015-01-29 16:23       ` Arnaldo Carvalho de Melo
2015-01-30  0:51         ` Namhyung Kim
2015-01-29  8:07 ` [PATCH 30/42] perf session: Pass struct events stats to event processing functions Namhyung Kim
2015-01-29  8:07 ` [PATCH 31/42] perf hists: Pass hists struct to hist_entry_iter functions Namhyung Kim
2015-01-29  8:07 ` [PATCH 32/42] perf tools: Move BUILD_ID_SIZE definition to perf.h Namhyung Kim
2015-01-29  8:07 ` [PATCH 33/42] perf report: Parallelize perf report using multi-thread Namhyung Kim
2015-01-29  8:07 ` [PATCH 34/42] perf tools: Add missing_threads rb tree Namhyung Kim
2015-01-29  8:07 ` [PATCH 35/42] perf record: Synthesize COMM event for a command line workload Namhyung Kim
2015-01-29  8:07 ` [PATCH 36/42] perf tools: Fix progress ui to support multi thread Namhyung Kim
2015-01-29  8:07 ` [PATCH 37/42] perf report: Add --multi-thread option and config item Namhyung Kim
2015-01-29  8:07 ` [PATCH 38/42] perf session: Handle index files generally Namhyung Kim
2015-01-29  8:07 ` [PATCH 39/42] perf tools: Convert lseek + read to pread Namhyung Kim
2015-01-30 18:34   ` [tip:perf/core] perf symbols: " tip-bot for Namhyung Kim
2015-01-29  8:07 ` [PATCH 40/42] perf callchain: Save eh/debug frame offset for dwarf unwind Namhyung Kim
2015-01-29 12:38   ` Arnaldo Carvalho de Melo
2015-01-29 13:23     ` Namhyung Kim
2015-01-29 19:22   ` Arnaldo Carvalho de Melo
2015-01-30 18:32   ` [tip:perf/core] perf callchain: Cache eh/ debug " tip-bot for Namhyung Kim
2015-01-29  8:07 ` [PATCH 41/42] perf tools: Add new perf data command Namhyung Kim
2015-01-29  8:07 ` [PATCH 42/42] perf data: Implement 'index' subcommand Namhyung Kim
2015-01-29 19:56 ` [RFC/PATCHSET 00/42] perf tools: Speed-up perf report by using multi thread (v2) Arnaldo Carvalho de Melo

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