From: Bart Van Assche <bvanassche@acm.org>
To: Peter Zijlstra <peterz@infradead.org>
Cc: linux-kernel@vger.kernel.org, Ingo Molnar <mingo@redhat.com>,
Vincent Guittot <vincent.guittot@linaro.org>,
Dietmar Eggemann <dietmar.eggemann@arm.com>,
Steven Rostedt <rostedt@goodmis.org>,
Juri Lelli <juri.lelli@redhat.com>
Subject: Re: [PATCH v2] sched/cputime: Make IRQ time accounting configurable at boot time
Date: Mon, 26 Jun 2023 10:08:24 -0700 [thread overview]
Message-ID: <6e5c4d84-2f40-72f3-81de-163194bfa0fd@acm.org> (raw)
In-Reply-To: <20230620141002.23914-1-bvanassche@acm.org>
On 6/20/23 07:10, Bart Van Assche wrote:
> IRQ time accounting reduces performance by 40% for some block storage
> workloads on Android. Despite this some producers of Android devices
> want to keep IRQ time accounting enabled.
>
> Android devices share a single kernel binary across device vendors.
> Make IRQ time accounting configurable at boot time such that Android
> vendors can decide individually whether or not to enable IRQ time
> accounting.
Can anyone please help with reviewing this patch?
Thanks,
Bart.
prev parent reply other threads:[~2023-06-26 17:08 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-06-20 14:10 [PATCH v2] sched/cputime: Make IRQ time accounting configurable at boot time Bart Van Assche
2023-06-26 17:08 ` Bart Van Assche [this message]
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=6e5c4d84-2f40-72f3-81de-163194bfa0fd@acm.org \
--to=bvanassche@acm.org \
--cc=dietmar.eggemann@arm.com \
--cc=juri.lelli@redhat.com \
--cc=linux-kernel@vger.kernel.org \
--cc=mingo@redhat.com \
--cc=peterz@infradead.org \
--cc=rostedt@goodmis.org \
--cc=vincent.guittot@linaro.org \
/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;
as well as URLs for NNTP newsgroup(s).