From: Michal Hocko <mhocko@suse.com>
To: Hyeonggon Yoo <42.hyeyoo@gmail.com>
Cc: Vlastimil Babka <vbabka@suse.cz>,
Andrew Morton <akpm@linux-foundation.org>,
Christoph Lameter <cl@linux.com>,
Pekka Enberg <penberg@kernel.org>,
David Rientjes <rientjes@google.com>,
Joonsoo Kim <iamjoonsoo.kim@lge.com>,
Roman Gushchin <roman.gushchin@linux.dev>,
Ingo Molnar <mingo@redhat.com>,
Johannes Weiner <hannes@cmpxchg.org>,
Shakeel Butt <shakeelb@google.com>,
Muchun Song <muchun.song@linux.dev>,
Matthew Wilcox <willy@infradead.org>,
linux-mm@kvack.org, linux-kernel@vger.kernel.org,
Peter Zijlstra <peterz@infradead.org>,
Juri Lelli <juri.lelli@redhat.com>,
Vincent Guittot <vincent.guittot@linaro.org>,
Dietmar Eggemann <dietmar.eggemann@arm.com>,
Steven Rostedt <rostedt@goodmis.org>,
Ben Segall <bsegall@google.com>,
Mel Gorman <mgorman@techsingularity.net>,
Daniel Bristot de Oliveira <bristot@redhat.com>,
Valentin Schneider <vschneid@redhat.com>,
Dennis Zhou <dennis@kernel.org>, Tejun Heo <tj@kernel.org>
Subject: Re: [PATCH mm-unstable] lib/Kconfig.debug: do not enable DEBUG_PREEMPT by default
Date: Wed, 25 Jan 2023 10:51:05 +0100 [thread overview]
Message-ID: <Y9D7iXUuLsOURfFv@dhcp22.suse.cz> (raw)
In-Reply-To: <Y9FNm50H+w1B26yR@hyeyoo>
On Thu 26-01-23 00:41:15, Hyeonggon Yoo wrote:
[...]
> > Do you happen to have any perf data collected during those runs? I
> > would be interested in the memcg side of things. Maybe we can do
> > something better there.
>
> Yes, below is performance data I've collected.
>
> 6.1.8-debug-preempt-dirty
> =========================
> Overhead Command Shared Object Symbol
> + 9.14% hackbench [kernel.vmlinux] [k] check_preemption_disabled
Thanks! Could you just add callers that are showing in the profile for
this call please?
--
Michal Hocko
SUSE Labs
next prev parent reply other threads:[~2023-01-25 9:51 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-01-21 3:39 Hyeonggon Yoo
2023-01-21 11:29 ` Vlastimil Babka
2023-01-21 11:54 ` Hyeonggon Yoo
2023-01-23 8:58 ` Michal Hocko
2023-01-25 15:41 ` Hyeonggon Yoo
2023-01-25 9:51 ` Michal Hocko [this message]
2023-01-27 11:43 ` Hyeonggon Yoo
2023-01-27 12:33 ` Michal Hocko
2023-01-23 11:05 ` Christoph Lameter
2023-01-24 16:34 ` Hyeonggon Yoo
2023-01-23 14:01 ` Mel Gorman
2023-01-26 2:02 ` Roman Gushchin
2023-01-27 11:45 ` Hyeonggon Yoo
2023-02-02 3:09 ` Davidlohr Bueso
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