| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Message-ID: <1405835183.6512.37.camel@marge.simpson.net> Date: Sun, 20 Jul 2014 07:46:23 +0200 From: Mike Galbraith <umgwanakikbuti@...il.com> To: Yuyang Du <yuyang.du@...el.com> Cc: mingo@...hat.com, peterz@...radead.org, linux-kernel@...r.kernel.org, pjt@...gle.com, bsegall@...gle.com, arjan.van.de.ven@...el.com, len.brown@...el.com, rafael.j.wysocki@...el.com, alan.cox@...el.com, mark.gross@...el.com, fengguang.wu@...el.com Subject: Re: [PATCH 0/2 v4] sched: Rewrite per entity runnable load average tracking On Fri, 2014-07-18 at 07:26 +0800, Yuyang Du wrote: > Thanks to Morten, Ben, and Fengguang. > > v4 changes: > > - Insert memory barrier before writing cfs_rq->load_last_update_copy. > - Fix typos. My little desktop box says lovely minus signs have had their usual effect on the general case (cgroups enabled but not in use). pipe-test scheduling cross core - full fastpath 3.0.101-default 3.753363 usecs/loop -- avg 3.770737 530.4 KHz 1.000 3.1.10-default 3.723843 usecs/loop -- avg 3.716058 538.2 KHz 1.014 3.2.51-default 3.728060 usecs/loop -- avg 3.710372 539.0 KHz 1.016 3.3.8-default 3.906174 usecs/loop -- avg 3.900399 512.8 KHz .966 3.4.97-default 3.864158 usecs/loop -- avg 3.865281 517.4 KHz .975 3.5.7-default 3.967481 usecs/loop -- avg 3.962757 504.7 KHz .951 3.6.11-default 3.851186 usecs/loop -- avg 3.845321 520.1 KHz .980 3.7.10-default 3.777869 usecs/loop -- avg 3.776913 529.5 KHz .998 3.8.13-default 4.049927 usecs/loop -- avg 4.041905 494.8 KHz .932 3.9.11-default 3.973046 usecs/loop -- avg 3.974208 503.2 KHz .948 3.10.27-default 4.189598 usecs/loop -- avg 4.189298 477.4 KHz .900 3.11.10-default 4.293870 usecs/loop -- avg 4.297979 465.3 KHz .877 3.12.24-default 4.321570 usecs/loop -- avg 4.321961 462.8 KHz .872 3.13.11-default 4.137845 usecs/loop -- avg 4.134863 483.7 KHz .911 3.14.10-default 4.145348 usecs/loop -- avg 4.139987 483.1 KHz .910 3.15.4-default 4.355594 usecs/loop -- avg 4.351961 459.6 KHz .866 3.16.0-default 4.537279 usecs/loop -- avg 4.543532 440.2 KHz .829 1.000 3.16.0-default+v4 4.343542 usecs/loop -- avg 4.318803 463.1 KHz .873 1.052 Extending max depth to 5, cost of depth++ seemingly did not change despite repeatable dip at depth = 3 (gremlins at play). mount -t cgroup o cpu none /cgroups mkdir -p /cgroups/a/b/c/d/e cgexec -g cpu:a pipe-test 1 3.16.0-default 5.016373 usecs/loop -- avg 5.021115 398.3 KHz 1.000 3.16.0-default+v4 4.978625 usecs/loop -- avg 4.977381 401.8 KHz 1.008 cgexec -g cpu:a/b pipe-test 1 3.16.0-default 5.543566 usecs/loop -- avg 5.565475 359.4 KHz 1.000 3.16.0-default+v4 5.597399 usecs/loop -- avg 5.570444 359.0 KHz .998 cgexec -g cpu:a/b/c pipe-test 1 3.16.0-default 6.092256 usecs/loop -- avg 6.094186 328.2 KHz 1.000 3.16.0-default+v4 6.294858 usecs/loop -- avg 6.338453 315.5 KHz .961 cgexec -g cpu:a/b/c/d pipe-test 1 3.16.0-default 6.719044 usecs/loop -- avg 6.717118 297.7 KHz 1.000 3.16.0-default+v4 6.788559 usecs/loop -- avg 6.710102 298.1 KHz 1.001 cgexec -g cpu:a/b/c/d/e pipe-test 1 3.16.0-default 7.186431 usecs/loop -- avg 7.194884 278.0 KHz 1.000 3.16.0-default+v4 7.368443 usecs/loop -- avg 7.250371 275.8 KHz .992 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Powered by blists - more mailing lists