Messages in this thread |  | | | Date | Wed, 01 Oct 2003 14:09:43 +1000 | | From | Nick Piggin <> | | Subject | Re: 2.6.0-test6 scheduling(?) oddness |
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Nick Piggin wrote:
> > > Murray J. Root wrote: > >> P4 2G >> 1G PC2700 RAM >> ASUS P4S533 >> Large tasks (like raytrace rendering) take double the amount of time >> they used >> to take, although the system is nicer to the user while they run. In >> 2.6.0-test5 had a little trouble with it and Piggin pointed me to a >> patch that >> fixed it and is now in -test6, however the patch didn't slow the >> rendering as >> much as it does in test6. (Con Koliva's patch, I believe it was). >> For example - rendering an image that took 15 minutes in 2.5.65 takes >> 20 minutes in 2.6.0-test5 (with patch) and 30 minutes in 2.6.0-test6 >> (raw from >> kernel.org). Same config options (everything I use builtin - no >> modules). >> >> A new issue (which also doesn't happen in -test5 with the patch): >> When running cpu intense tasks, new (large) tasks will not start till >> the first >> one finishes. >> For example, using POV-Ray 3.5 to render an image that takes 30 >> minutes when it >> is the only program running, start oowriter. >> The render finishes in the same 30 minutes, then oowriter starts. >> oowriter takes about 3 seconds to load if no rendering is going on. >> I can use apps that are already open but can't start new ones while >> rendering. >> In 2.6.0-test5 (with patch) opening oowriter while rendering takes >> about 1 minute. >> In 2.5.65 opening oowriter while rendering takes about 2 minutes (and >> X gets >> very hard to use till oowriter is completely done opening). >> > > Hi Murray! > Con Kolivas' patch has been included in test6. You might have tried that > or maybe my patch? > > Anyway, lets just clarify your report: > 1 CPU, hyperthreading on or off? > > test5 interactivity under load isn't as good as test6. > > povray takes 150% more time in test6 vs tset5. How many compute threads > does povray use? Is anything else running?
Sorry, 150% _the_ time, 50% more time.
> > > oowriter takes 3 seconds to load when nothing is running > oowriter takes 30(or more) minutes to load when povray is runnnig, takes > 1 minute in test5 plus patch (could you tell us exactly what the patch > is) > >
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