From: Tejun Heo <tj@kernel.org>
To: Steven Rostedt <rostedt@goodmis.org>
Cc: LKML <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>,
Ben Segall <bsegall@google.com>, Mel Gorman <mgorman@suse.de>,
Valentin Schneider <vschneid@redhat.com>,
K Prateek Nayak <kprateek.nayak@amd.com>,
Kyle McMartin <jkkm@meta.com>
Subject: Re: [PATCH v2] sched/rt: Have RT_PUSH_IPI be default off for non PREEMPT_RT
Date: Fri, 15 May 2026 08:47:49 -1000 [thread overview]
Message-ID: <agdqVe128SUc1vCW@slm.duckdns.org> (raw)
In-Reply-To: <20260515143847.543c4b8c@gandalf.local.home>
Hello, Steven.
On Fri, May 15, 2026 at 02:38:47PM -0400, Steven Rostedt wrote:
> Hmm, but I'm guessing that it still was long enough to slow down the
> softirq to trigger it again and prevent scheduling?
Yes, seems that way. I think the load is lower and each softirq invocation
is relatively short (just going through the packets received in the
meantime) but the frequency is higher.
Thanks.
--
tejun
next prev parent reply other threads:[~2026-05-15 18:47 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-05-15 14:37 [PATCH v2] sched/rt: Have RT_PUSH_IPI be default off for non PREEMPT_RT Steven Rostedt
2026-05-15 17:17 ` Tejun Heo
2026-05-15 18:38 ` Steven Rostedt
2026-05-15 18:47 ` Tejun Heo [this message]
2026-05-15 18:56 ` Steven Rostedt
2026-05-15 22:27 ` Tejun Heo
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