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
| ||
|
Date: Sun, 20 May 2007 09:44:35 -0700 From: "Ray Lee" <ray-lk@...rabbit.org> To: "Miguel Figueiredo" <elmig@...ianpt.org> Cc: "Bill Davidsen" <davidsen@....com>, "Linux Kernel M/L" <linux-kernel@...r.kernel.org> Subject: Re: Sched - graphic smoothness under load - cfs-v13 sd-0.48 On 5/20/07, Miguel Figueiredo <elmig@...ianpt.org> wrote: > As I tryied myself kernels 2.6.21, 2.6.21-cfs-v13, and 2.6.21-ck2 on the > same machine i found *very* odd those numbers you posted, so i tested > myself those kernels to see the numbers I get instead of talking about > the usage of kernel xpto feels like. > > I did run glxgears with kernels 2.6.21, 2.6.21-cfs-v13 and 2.6.21-ck2 > inside Debian's GNOME environment. The hardware is an AMD Sempron64 3.0 > GHz, 1 GB RAM, Nvidia 6800XT. > Average and standard deviation from the gathered data: > > * 2.6.21: average = 11251.1; stdev = 0.172 > * 2.6.21-cfs-v13: average = 11242.8; stdev = 0.033 > * 2.6.21-ck2: average = 11257.8; stdev = 0.067 > > Keep in mind those numbers don't mean anything we all know glxgears is > not a benchmark, their purpose is only to be used as comparison under > the same conditions. Uhm, then why are you trying to use them to compare against Bill's numbers? You two have completely different hardware setups, and this is a test that is dependent upon hardware. Stated differently, this is a worthless comparison between your results and his as you are changing multiple variables at the same time. (At minimum: the scheduler, cpu, and video card.) > One odd thing i noticed, with 2.6.21-cfs-v13 the gnome's time applet in > the bar skipped some minutes (e.g. 16:23 -> 16:25) several times. > > The data is available on: > http://www.debianPT.org/~elmig/pool/kernel/20070520/ > > > How did you get your data? I am affraid your data it's wrong, there's no > such big difference between the schedulers... It doesn't look like you were running his glitch1 script which starts several in glxgears parallel. Were you, or were you just running one? - 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