From: Peter Zijlstra <peterz@infradead.org>
To: Chen Yu <yu.chen.surf@foxmail.com>
Cc: zihan zhou <15645113830zzh@gmail.com>,
oe-lkp@lists.linux.dev, kernel test robot <oliver.sang@intel.com>,
lkp@intel.com, linux-kernel@vger.kernel.org, x86@kernel.org,
Vincent Guittot <vincent.guittot@linaro.org>,
aubrey.li@linux.intel.com, yu.c.chen@intel.com
Subject: Re: [tip:sched/core] [sched] 2ae891b826: hackbench.throughput 6.2% regression
Date: Tue, 25 Feb 2025 13:27:05 +0100 [thread overview]
Message-ID: <20250225122705.GD34233@noisy.programming.kicks-ass.net> (raw)
In-Reply-To: <tencent_6D9B516AFF16965A3BB652A049D6CA847706@qq.com>
On Tue, Feb 25, 2025 at 05:31:34PM +0800, Chen Yu wrote:
>
> But consider that the 6% regression is not that high, and the user might customize
> base_slice via debugfs on-demand, we can keep an eye on this and revist it in the
> future(we have encountered some SPECjbb regression due to over-preemption).
You can specify a per-task slice using sched_attr::sched_runtime. Also
see commit 857b158dc5e8 ("sched/eevdf: Use sched_attr::sched_runtime to
set request/slice suggestion")
next prev parent reply other threads:[~2025-02-25 12:27 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-02-25 2:32 [tip:sched/core] [sched] 2ae891b826: hackbench.throughput 6.2% regression kernel test robot
2025-02-25 9:31 ` Chen Yu
2025-02-25 9:45 ` Vincent Guittot
2025-02-25 10:15 ` Chen Yu
2025-02-25 12:27 ` Peter Zijlstra [this message]
2025-02-25 13:15 ` Chen Yu
2025-02-25 13:42 ` Qais Yousef
2025-02-25 15:35 ` Chen Yu
2025-02-25 23:10 ` Qais Yousef
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