Messages in this thread | | | Date | Wed, 1 Oct 2003 01:18:27 -0400 | From | "Murray J. Root" <> | Subject | Re: 2.6.0-test6 scheduling(?) oddness |
| |
On Wed, Oct 01, 2003 at 03:04:15PM +1000, Nick Piggin wrote: > > > Andrew Morton wrote: > > >"Murray J. Root" <murrayr@brain.org> wrote: > > > >>The render finishes in the same 30 minutes, then oowriter starts. > >>oowriter takes about 3 seconds to load if no rendering is going on. > >> > > > >OpenOffice uses sched_yield() in strange ways which causes it to > >get hopelessly starved on 2.6 kernels. I think RH have a fixed version, > >but I don't know if that has propagated into the upstream yet. > > > > > > OK. Aside from the OpenOffice issue, you still have povray taking 50% > longer to complete, which is quite remarkable if its single threaded and > nothing else is running. Maybe its not the scheduler change? Anyway, > Con will want to know exactly which version of his scheduler you used in > test5 to check for possibilities. >
patch-test5-O20int
Not sure what caused the increase from 2.6.0-test5 to 2.6.0-test6. One noticeable thing - I get a noticeable speed increase if I turn off rendering to the screen, so that it only goes to a file. I don't get that speed improvement in 2.5.65 - only in 2.6.0-test5 and 2.6.0-test6 test5 goes from 20 mins to about 15 mins (the same speed as 2.5.65 with or without screen rendering) test6 goes from 30 mins to 24 mins - still worse than test5 by a lot.
-- Murray J. Root
- 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/
| |