| From | Con Kolivas <> | Subject | Re: [REPORT] cfs-v4 vs sd-0.44 | Date | Sun, 22 Apr 2007 11:51:37 +1000 |
| |
On Saturday 21 April 2007 22:12, Willy Tarreau wrote: > 2) SD-0.44 > > Feels good, but becomes jerky at moderately high loads. I've started > 64 ocbench with a 250 ms busy loop and 750 ms sleep time. The system > always responds correctly but under X, mouse jumps quite a bit and > typing in xterm or even text console feels slightly jerky. The CPU is > not completely used, and the load varies a lot (see below). However, > the load is shared equally between all 64 ocbench, and they do not > deviate even after 4000 iterations. X uses less than 1% CPU during > those tests.
Found it. I broke SMP balancing again so there is serious scope for improvement on SMP hardware. That explains the huge load variations. Expect yet another fix soon, which should improve behaviour further :)
-- -ck - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
|