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On 18:36 Sun 16 Dec , Mick wrote: |
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> On Saturday 15 December 2007, forgottenwizard wrote: |
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> > On 15:27 Thu 13 Dec , Jason Carson wrote: |
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> > > Greetings, |
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> > > |
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> > > Where in the kernel config (make menuconfig) do I find the choice for |
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> > > schedulers. The one I am currently using is "Anticipatory". What is the |
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> > > newest and latest scheduler for 2.6.23? |
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> > > |
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> > > Regards, |
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> > > |
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> > > Jason Carson |
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> > > |
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> > > -- |
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> > > gentoo-user@g.o mailing list |
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> > |
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> > Like someone else mentioned, you can switch the sched on the fly, and |
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> > quite easily. From what I have seen myself: |
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> > |
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> > Anticipatory seems to be, at times, faster than deadline, but not by |
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> > much. It tries to predict what will be needed next, where as deadline |
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> > makes reads/writes based on which will be the fastest (recomended for |
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> > databases and such iirc). |
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> > |
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> > In my experiance, CFQ has always been the slowest. It gives everything |
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> > even time, and seems to cause alot more head movement than the other |
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> > two, which is a pain. |
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> > |
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> > Best bet is to compile them all in, and switch them out to see what |
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> > works best. For me that seems to be deadline (btw, I am running a |
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> > desktop), but testing would be the best thing. |
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> |
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> Is testing a matter of how 'it feels' to use the desktop type-of-thing, or is |
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> it a matter of trying to start/run multiple apps against a stop-watch? |
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> |
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> I have used anticipatory and CFQ on my laptop and I am not sure that I can |
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> tell the difference . . . |
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> -- |
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> Regards, |
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> Mick |
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I go by how things feel. I know about how long most programs take to |
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start up, and how everything feels. |
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Of course, you can also figure into all this I have mpd running, fetchmail |
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running every few minutes, plus other various programs running that are |
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going to take up more disk I/O than what might be expected from a |
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laptop. |
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>From what I've been able to tell, deadline has always worked best for |
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me, since not many of the reads I have take very long to start off with |
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(outside of the occasional movie). |
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Course, there is also how much you have loaded into RAM and cache that |
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would affect all this (which I bet you have more RAM than I do), so... |
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-- |
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