From: "Paul E. McKenney" <paulmck@kernel.org>
To: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Cc: Stefan Wahren <stefan.wahren@i2se.com>,
Marcelo Tosatti <mtosatti@redhat.com>,
Andrew Morton <akpm@linux-foundation.org>,
Nicolas Saenz Julienne <nsaenzju@redhat.com>,
Borislav Petkov <bp@alien8.de>, Minchan Kim <minchan@kernel.org>,
Matthew Wilcox <willy@infradead.org>,
Mel Gorman <mgorman@techsingularity.net>,
Juri Lelli <juri.lelli@redhat.com>,
Thomas Gleixner <tglx@linutronix.de>,
linux-kernel@vger.kernel.org, linux-mm@kvack.org,
Linux ARM <linux-arm-kernel@lists.infradead.org>,
Phil Elwell <phil@raspberrypi.com>,
regressions@lists.linux.dev
Subject: Re: vchiq: Performance regression since 5.18-rc1
Date: Wed, 25 May 2022 08:02:33 -0700 [thread overview]
Message-ID: <20220525150233.GX1790663@paulmck-ThinkPad-P17-Gen-1> (raw)
In-Reply-To: <Yo48k4InPmj8lDxZ@linutronix.de>
On Wed, May 25, 2022 at 04:26:27PM +0200, Sebastian Andrzej Siewior wrote:
> On 2022-05-25 16:07:47 [+0200], Stefan Wahren wrote:
> > this was the same as Paul send. I think i need more time for investigation,
> > maybe there is an issue with the application.
>
> I haven't seen Paul referring to *that* patch. He pointed to some fs/
> related changes.
True! Both patches changed from a synchronize_rcu() to a
synchronize_rcu_expedited(), but different instances of synchronize_rcu().
Thanx, Paul
next prev parent reply other threads:[~2022-05-25 15:06 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-05-21 23:22 vchiq: Performance regression since 5.18-rc1 Stefan Wahren
2022-05-21 23:46 ` Paul E. McKenney
2022-05-22 15:11 ` Stefan Wahren
2022-05-23 4:48 ` Paul E. McKenney
2022-05-23 6:19 ` Stefan Wahren
2022-05-23 9:29 ` Phil Elwell
2022-05-23 10:48 ` Stefan Wahren
2022-05-23 11:01 ` Phil Elwell
2022-05-23 11:15 ` Stefan Wahren
2022-05-23 11:22 ` Phil Elwell
2022-05-23 7:09 ` Sebastian Andrzej Siewior
2022-05-25 13:56 ` Marcelo Tosatti
2022-05-25 14:07 ` Stefan Wahren
2022-05-25 14:26 ` Sebastian Andrzej Siewior
2022-05-25 15:02 ` Paul E. McKenney [this message]
2022-05-25 15:37 ` Marcelo Tosatti
2022-05-29 22:47 ` Stefan Wahren
2022-05-30 9:54 ` Stefan Wahren
2022-05-23 9:28 ` Thorsten Leemhuis
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