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Thu, 13 Mar 2025 18:49:43 -0700 (PDT) From: zihan zhou <15645113830zzh@gmail.com> To: kprateek.nayak@amd.com Cc: 15645113830zzh@gmail.com, bsegall@google.com, dietmar.eggemann@arm.com, gautham.shenoy@amd.com, juri.lelli@redhat.com, linux-kernel@vger.kernel.org, mgorman@suse.de, mingo@redhat.com, peterz@infradead.org, rostedt@goodmis.org, vincent.guittot@linaro.org, vschneid@redhat.com Subject: Re: [PATCH V3 1/2] sched: Reduce the default slice to avoid tasks getting an extra tick Date: Fri, 14 Mar 2025 09:49:03 +0800 Message-Id: <20250314014902.56810-1-15645113830zzh@gmail.com> X-Mailer: git-send-email 2.39.3 (Apple Git-146) In-Reply-To: <3d0f9c2b-8498-4405-b178-9f6c8615f73b@amd.com> References: <3d0f9c2b-8498-4405-b178-9f6c8615f73b@amd.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Thank you for your reply! I don't mind at all, and I'm also sorry for the slow response due to too many things lately. > Hello Zhou, > > Sorry this slipped past me. Thank you very much for your guidance! I realize that without a good benchmark, it is impossible to truly do a good job in scheduling. I will try my best to make time to do this well. > We use selective benchmarks from LKP: https://github.com/intel/lkp-tests > > Then there are some larger benchmarks we run based on previous regression > reports and debugs. some of them are: > > YCSB: https://github.com/brianfrankcooper/YCSB > netperf: https://github.com/HewlettPackard/netperf > DeathStarBench: https://github.com/delimitrou/DeathStarBench > HammerDB: https://github.com/TPC-Council/HammerDB.git > tbench (part of dbench): https://dbench.samba.org/web/download.html > schbench: https://git.kernel.org/pub/scm/linux/kernel/git/mason/schbench.git > sched-messaging: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/tools/perf/bench/sched-messaging.c?h=v6.14-rc4 > > Some of them are hard to setup the first time; we internally have some > tools that have made it easy to run these benchmarks in a way that > stresses the system but we keep an eye out for regression reports to > understand what benchmarks folks are running in the field. > > Sorry again for the delay and thank you. Thank you for your support! Wishing you all the best.