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([2409:8a28:e63:2e90:498e:2d75:1610:f371]) by smtp.gmail.com with ESMTPSA id x185-20020a6263c2000000b0052dc3796cbfsm10562485pfb.75.2022.08.17.08.19.24 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 17 Aug 2022 08:19:29 -0700 (PDT) Message-ID: <42c6d11d-d68a-e869-375e-550c495be5bb@bytedance.com> Date: Wed, 17 Aug 2022 23:19:18 +0800 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:102.0) Gecko/20100101 Thunderbird/102.1.2 Subject: Re: [PATCH v2 00/10] sched/psi: some optimization and extension Content-Language: en-US From: Chengming Zhou To: =?UTF-8?Q?Michal_Koutn=c3=bd?= Cc: hannes@cmpxchg.org, tj@kernel.org, corbet@lwn.net, surenb@google.com, mingo@redhat.com, peterz@infradead.org, vincent.guittot@linaro.org, dietmar.eggemann@arm.com, rostedt@goodmis.org, bsegall@google.com, cgroups@vger.kernel.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, songmuchun@bytedance.com References: <20220808110341.15799-1-zhouchengming@bytedance.com> <20220815132514.GB22640@blackbody.suse.cz> <08ec9c4f-80b2-f731-aa8b-fb4e852ece25@bytedance.com> In-Reply-To: <08ec9c4f-80b2-f731-aa8b-fb4e852ece25@bytedance.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-doc@vger.kernel.org On 2022/8/16 22:01, Chengming Zhou wrote: > On 2022/8/15 21:25, Michal Koutný wrote: >> On Mon, Aug 08, 2022 at 07:03:31PM +0800, Chengming Zhou wrote: >>> This patch series are some optimization and extension for PSI, >> >> BTW do you have some numbers/example how much these modifications save >> when aggregated together? >> Sorry about delay... Performance test using mmtests/config-scheduler-perfpipe in /user.slice/user-0.slice/session-4.scope next patched patched/only-leaf Min Time 8.82 ( 0.00%) 8.49 ( 3.74%) 8.00 ( 9.32%) 1st-qrtle Time 8.90 ( 0.00%) 8.58 ( 3.63%) 8.05 ( 9.58%) 2nd-qrtle Time 8.94 ( 0.00%) 8.61 ( 3.65%) 8.09 ( 9.50%) 3rd-qrtle Time 8.99 ( 0.00%) 8.65 ( 3.75%) 8.15 ( 9.35%) Max-1 Time 8.82 ( 0.00%) 8.49 ( 3.74%) 8.00 ( 9.32%) Max-5 Time 8.82 ( 0.00%) 8.49 ( 3.74%) 8.00 ( 9.32%) Max-10 Time 8.84 ( 0.00%) 8.55 ( 3.20%) 8.04 ( 9.05%) Max-90 Time 9.04 ( 0.00%) 8.67 ( 4.10%) 8.18 ( 9.51%) Max-95 Time 9.04 ( 0.00%) 8.68 ( 4.03%) 8.20 ( 9.26%) Max-99 Time 9.07 ( 0.00%) 8.73 ( 3.82%) 8.25 ( 9.11%) Max Time 9.12 ( 0.00%) 8.89 ( 2.54%) 8.27 ( 9.29%) Amean Time 8.95 ( 0.00%) 8.62 * 3.67%* 8.11 * 9.43%* Thanks!