From: Alexey Budankov <alexey.budankov@linux.intel.com>
To: Peter Zijlstra <peterz@infradead.org>
Cc: Ingo Molnar <mingo@redhat.com>,
Arnaldo Carvalho de Melo <acme@kernel.org>,
Alexander Shishkin <alexander.shishkin@linux.intel.com>,
Andi Kleen <ak@linux.intel.com>, Kan Liang <kan.liang@intel.com>,
Dmitri Prokhorov <Dmitry.Prohorov@intel.com>,
Valery Cherepennikov <valery.cherepennikov@intel.com>,
Mark Rutland <mark.rutland@arm.com>,
Stephane Eranian <eranian@google.com>,
David Carrillo-Cisneros <davidcc@google.com>,
linux-kernel <linux-kernel@vger.kernel.org>,
Vince Weaver <vince@deater.net>,
Thomas Gleixner <tglx@linutronix.de>
Subject: Re: [RFC][PATCH] perf: Rewrite enabled/running timekeeping
Date: Mon, 11 Sep 2017 09:55:39 +0300 [thread overview]
Message-ID: <4afceb5f-91ba-12fc-415f-0be142f2a3d2@linux.intel.com> (raw)
In-Reply-To: <20170905111943.v2twm3jgu3mct3ib@hirez.programming.kicks-ass.net>
Hi,
On 05.09.2017 14:19, Peter Zijlstra wrote:
> On Tue, Sep 05, 2017 at 01:17:39PM +0300, Alexey Budankov wrote:
>> However we can't completely get rid of whole tree iterations because of
>> inheritance code on forks in perf_event_init_context() here:
>
> Right, fork() / inherit needs to iterate the full thing, nothing to be
> done about that.
>
> I'll go make proper patches for that timekeeping rewrite and then have a
> look at your patches.
>
Is there any progress so far? The latest patch version is here:
https://lkml.org/lkml/2017/9/8/118
next prev parent reply other threads:[~2017-09-11 6:55 UTC|newest]
Thread overview: 76+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-08-02 8:11 [PATCH v6 0/3] perf/core: addressing 4x slowdown during per-process profiling of STREAM benchmark on Intel Xeon Phi Alexey Budankov
2017-08-02 8:13 ` [PATCH v6 1/3] perf/core: use rb trees for pinned/flexible groups Alexey Budankov
2017-08-03 13:00 ` Peter Zijlstra
2017-08-03 20:30 ` Alexey Budankov
2017-08-04 14:36 ` Peter Zijlstra
2017-08-07 7:17 ` Alexey Budankov
2017-08-07 8:39 ` Peter Zijlstra
2017-08-07 9:13 ` Peter Zijlstra
2017-08-07 15:32 ` Alexey Budankov
2017-08-07 15:55 ` Peter Zijlstra
2017-08-07 16:27 ` Alexey Budankov
2017-08-07 16:57 ` Peter Zijlstra
2017-08-07 17:39 ` Andi Kleen
2017-08-07 18:12 ` Peter Zijlstra
2017-08-07 18:13 ` Alexey Budankov
2017-08-15 17:28 ` Alexey Budankov
2017-08-23 13:39 ` Alexander Shishkin
2017-08-23 14:18 ` Alexey Budankov
2017-08-29 13:51 ` Alexander Shishkin
2017-08-30 8:30 ` Alexey Budankov
2017-08-30 10:18 ` Alexander Shishkin
2017-08-30 10:30 ` Alexey Budankov
2017-08-30 11:13 ` Alexander Shishkin
2017-08-30 11:16 ` Alexey Budankov
2017-08-31 10:12 ` Alexey Budankov
2017-08-31 10:12 ` Alexey Budankov
2017-08-04 14:53 ` Peter Zijlstra
2017-08-07 15:22 ` Alexey Budankov
2017-08-02 8:15 ` [PATCH v6 2/3]: perf/core: use context tstamp_data for skipped events on mux interrupt Alexey Budankov
2017-08-03 13:04 ` Peter Zijlstra
2017-08-03 14:00 ` Peter Zijlstra
2017-08-03 15:58 ` Alexey Budankov
2017-08-04 12:36 ` Peter Zijlstra
2017-08-03 15:00 ` Peter Zijlstra
2017-08-03 18:47 ` Alexey Budankov
2017-08-04 12:35 ` Peter Zijlstra
2017-08-04 12:51 ` Peter Zijlstra
2017-08-04 14:25 ` Alexey Budankov
2017-08-04 14:23 ` Alexey Budankov
2017-08-10 15:57 ` Alexey Budankov
2017-08-22 20:47 ` Peter Zijlstra
2017-08-23 8:54 ` Alexey Budankov
2017-08-31 17:18 ` [RFC][PATCH] perf: Rewrite enabled/running timekeeping Peter Zijlstra
2017-08-31 19:51 ` Stephane Eranian
2017-09-05 7:51 ` Stephane Eranian
2017-09-05 9:44 ` Peter Zijlstra
2017-09-01 10:45 ` Alexey Budankov
2017-09-01 12:31 ` Peter Zijlstra
2017-09-01 11:17 ` Alexey Budankov
2017-09-01 12:42 ` Peter Zijlstra
2017-09-01 21:03 ` Vince Weaver
2017-09-04 10:46 ` Alexey Budankov
2017-09-04 12:08 ` Peter Zijlstra
2017-09-04 14:56 ` Alexey Budankov
2017-09-04 15:41 ` Peter Zijlstra
2017-09-04 15:58 ` Peter Zijlstra
2017-09-05 10:17 ` Alexey Budankov
2017-09-05 11:19 ` Peter Zijlstra
2017-09-11 6:55 ` Alexey Budankov [this message]
2017-09-05 12:06 ` Alexey Budankov
2017-09-05 12:59 ` Peter Zijlstra
2017-09-05 16:03 ` Peter Zijlstra
2017-09-06 13:48 ` Alexey Budankov
2017-09-08 8:47 ` Alexey Budankov
2018-03-12 17:43 ` [tip:perf/core] perf/cor: Use RB trees for pinned/flexible groups tip-bot for Alexey Budankov
2017-08-02 8:16 ` [PATCH v6 3/3]: perf/core: add mux switch to skip to the current CPU's events list on mux interrupt Alexey Budankov
2017-08-18 5:17 ` [PATCH v7 0/2] perf/core: addressing 4x slowdown during per-process profiling of STREAM benchmark on Intel Xeon Phi Alexey Budankov
2017-08-18 5:21 ` [PATCH v7 1/2] perf/core: use rb trees for pinned/flexible groups Alexey Budankov
2017-08-23 11:17 ` Alexander Shishkin
2017-08-23 17:23 ` Alexey Budankov
2017-08-18 5:22 ` [PATCH v7 2/2] perf/core: add mux switch to skip to the current CPU's events list on mux interrupt Alexey Budankov
2017-08-23 11:54 ` Alexander Shishkin
2017-08-23 18:12 ` Alexey Budankov
2017-08-22 20:21 ` [PATCH v7 0/2] perf/core: addressing 4x slowdown during per-process profiling of STREAM benchmark on Intel Xeon Phi Peter Zijlstra
2017-08-23 8:54 ` Alexey Budankov
2017-08-31 10:12 ` Alexey Budankov
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=4afceb5f-91ba-12fc-415f-0be142f2a3d2@linux.intel.com \
--to=alexey.budankov@linux.intel.com \
--cc=Dmitry.Prohorov@intel.com \
--cc=acme@kernel.org \
--cc=ak@linux.intel.com \
--cc=alexander.shishkin@linux.intel.com \
--cc=davidcc@google.com \
--cc=eranian@google.com \
--cc=kan.liang@intel.com \
--cc=linux-kernel@vger.kernel.org \
--cc=mark.rutland@arm.com \
--cc=mingo@redhat.com \
--cc=peterz@infradead.org \
--cc=tglx@linutronix.de \
--cc=valery.cherepennikov@intel.com \
--cc=vince@deater.net \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox