----- Original Message ---- From: Ingo Molnar <[EMAIL PROTECTED]> To: Con Kolivas <[EMAIL PROTECTED]> Cc: linux list <linux-kernel@vger.kernel.org>; Andrew Morton <[EMAIL PROTECTED]>; Mike Galbraith <[EMAIL PROTECTED]> Sent: Thursday, March 29, 2007 9:22:49 PM Subject: [test] hackbench.c interactivity results: vanilla versus SD/RSDL
* Ingo Molnar <[EMAIL PROTECTED]> wrote: > * Con Kolivas <[EMAIL PROTECTED]> wrote: > > > I'm cautiously optimistic that we're at the thin edge of the bugfix > > wedge now. [...] > and the numbers he posted: > > http://marc.info/?l=linux-kernel&m=117448900626028&w=2 We been staring at these numbers for while now and we come to the conclusion they wrong. The test is f is 3 tasks, two on different and one on same cpu as sh here: virgin 2.6.21-rc3-rsdl-smp top - 13:52:50 up 7 min, 12 users, load average: 3.45, 2.89, 1.51 PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ P COMMAND 6560 root 31 0 2892 1236 1032 R 82 0.1 1:50.24 1 sh 6558 root 28 0 1428 276 228 S 42 0.0 1:00.09 1 f 6557 root 30 0 1424 280 228 R 35 0.0 1:00.25 0 f 6559 root 39 0 1424 276 228 R 33 0.0 0:58.36 0 f 6560 sh is asking for 100% cpu on cpu number 1 6558 f is asking for 50% cpu on cpu number 1 6557 f is asking for 50% cpu on cpu number 0 6559 f is asking for 50% cpu on cpu number 0 So if 6560 and 6558 are asking for cpu from cpu number 1: 6560 wants 100% and 6558 wants 50%. 6560 should get 2/3 cpu 6558 should get 1/3 cpu 2.6.21-rc3-rsdl-smp gives 65% sh and 35% f patched 2.6.21-rc3-rsdl-smp gives 60% sh and 40% f 2.6.20.3-smp gives 51% sh and 49% f We think cpu correctness is 2.6.21-rc3-rsdl-smp in that test. Xant ____________________________________________________________________________________ Food fight? Enjoy some healthy debate in the Yahoo! Answers Food & Drink Q&A. http://answers.yahoo.com/dir/?link=list&sid=396545367 - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
