From: Peter Zijlstra <peterz@infradead.org>
To: Namhyung Kim <namhyung@kernel.org>
Cc: Ingo Molnar <mingo@kernel.org>,
Mark Rutland <mark.rutland@arm.com>,
Alexander Shishkin <alexander.shishkin@linux.intel.com>,
Arnaldo Carvalho de Melo <acme@kernel.org>,
Ian Rogers <irogers@google.com>,
Adrian Hunter <adrian.hunter@intel.com>,
LKML <linux-kernel@vger.kernel.org>,
Eric Dumazet <edumazet@google.com>
Subject: Re: [PATCH] perf/x86: Add cond_resched() when allocate/release DS buffers
Date: Tue, 28 Oct 2025 15:15:18 +0100 [thread overview]
Message-ID: <20251028141518.GA4067720@noisy.programming.kicks-ass.net> (raw)
In-Reply-To: <20251027212724.1759322-1-namhyung@kernel.org>
On Mon, Oct 27, 2025 at 02:27:24PM -0700, Namhyung Kim wrote:
> On large systems, it's possible to trigger sched latency warning during
> the DS buffer allocation or release. Add cond_resched() to avoid it.
We're >.< close to deleting cond_resched(), it makes absolutely no sense
adding more.
next prev parent reply other threads:[~2025-10-28 14:15 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-10-27 21:27 [PATCH] perf/x86: Add cond_resched() when allocate/release DS buffers Namhyung Kim
2025-10-28 14:15 ` Peter Zijlstra [this message]
2025-10-28 15:27 ` Peter Zijlstra
2025-10-28 19:02 ` Namhyung Kim
2025-10-28 19:04 ` Peter Zijlstra
2025-10-28 20:13 ` Sebastian Andrzej Siewior
2025-10-29 9:07 ` Peter Zijlstra
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