From: Chen Yu <yu.c.chen@intel.com>
To: Peter Zijlstra <peterz@infradead.org>,
Mike Galbraith <umgwanakikbuti@gmail.com>
Cc: kernel test robot <oliver.sang@intel.com>,
<oe-lkp@lists.linux.dev>, <lkp@intel.com>,
<linux-kernel@vger.kernel.org>, <x86@kernel.org>,
"Ingo Molnar" <mingo@kernel.org>,
K Prateek Nayak <kprateek.nayak@amd.com>,
"Feng Tang" <feng.tang@intel.com>
Subject: Re: [tip:sched/eevdf] [sched/fair] e0c2ff903c: phoronix-test-suite.blogbench.Write.final_score -34.8% regression
Date: Tue, 22 Aug 2023 15:07:48 +0800 [thread overview]
Message-ID: <ZORexC0xTjm1LlWA@chenyu5-mobl2> (raw)
In-Reply-To: <ZORaUsd+So+tnyMV@chenyu5-mobl2>
On 2023-08-22 at 14:48:50 +0800, Chen Yu wrote:
> Hi Peter, Mike,
>
> On 2023-08-18 at 09:09:29 +0800, Chen Yu wrote:
> > On 2023-08-16 at 15:40:59 +0200, Peter Zijlstra wrote:
> > > On Wed, Aug 16, 2023 at 02:37:16PM +0200, Peter Zijlstra wrote:
> > > > On Mon, Aug 14, 2023 at 08:32:55PM +0200, Mike Galbraith wrote:
[snip...]
> Reducing the spinlock contention could help improve the situation.
> Feng Tang told me that there is a discussion on the LKML related to high
> slub spinlock contention[2]. And Feng provides a hack patch which
The discussion is at
https://lore.kernel.org/all/ZL+R5kJpnHMUgGY2@feng-clx/
thanks,
Chenyu
next prev parent reply other threads:[~2023-08-22 7:08 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-08-10 13:24 [tip:sched/eevdf] [sched/fair] e0c2ff903c: phoronix-test-suite.blogbench.Write.final_score -34.8% regression kernel test robot
2023-08-11 1:11 ` Chen Yu
2023-08-11 2:42 ` Chen Yu
2023-08-14 13:29 ` Peter Zijlstra
2023-08-14 18:32 ` Mike Galbraith
2023-08-15 23:52 ` Peter Zijlstra
2023-08-16 3:54 ` Mike Galbraith
2023-08-16 12:37 ` Peter Zijlstra
2023-08-16 13:40 ` Peter Zijlstra
2023-08-16 15:38 ` Mike Galbraith
2023-08-16 20:04 ` Peter Zijlstra
2023-08-17 1:25 ` Mike Galbraith
2023-08-17 15:10 ` [tip: sched/core] sched/eevdf: Curb wakeup-preemption tip-bot2 for Peter Zijlstra
2023-08-21 10:39 ` K Prateek Nayak
2023-08-21 15:30 ` Mike Galbraith
2023-08-22 3:03 ` K Prateek Nayak
2023-08-22 6:09 ` Mike Galbraith
2023-08-25 6:41 ` K Prateek Nayak
2023-09-19 9:02 ` [PATCH] sched/fair: Do not wakeup-preempt same-prio SCHED_OTHER tasks Ingo Molnar
2023-09-19 9:48 ` Mike Galbraith
2023-09-22 10:00 ` kernel test robot
2023-09-25 11:07 ` Ingo Molnar
2023-09-25 16:45 ` Chen Yu
2023-08-18 1:09 ` [tip:sched/eevdf] [sched/fair] e0c2ff903c: phoronix-test-suite.blogbench.Write.final_score -34.8% regression Chen Yu
2023-08-22 6:48 ` Chen Yu
2023-08-22 7:07 ` Chen Yu [this message]
2023-08-16 3:40 ` Chen Yu
2023-08-16 9:20 ` Peter Zijlstra
2023-08-14 12:49 ` Peter Zijlstra
2023-08-18 1:54 ` Chen Yu
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