Messages in this thread | | | Date | Wed, 21 Mar 2007 18:48:27 -0500 | From | Jeffrey Hundstad <> | Subject | Re: [PATCH] sched: rsdl improvements |
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Artur Skawina wrote: > Con Kolivas wrote: > >> Note no interactive boost idea here. >> >> Patch is for 2.6.21-rc4-mm1. I have not spent the time trying to bring other >> bases in sync. >> > > I've tried RSDLv.31+this on 2.6.20.3 as i'm not tracking -mm. > > >> Further improve the deterministic nature of the RSDL cpu scheduler and make >> the rr_interval tunable. >> >> By only giving out priority slots to tasks at the current runqueue's >> prio_level or below we can make the cpu allocation not altered by accounting >> issues across major_rotation periods. This makes the cpu allocation and >> latencies more deterministic, and decreases maximum latencies substantially. >> This change removes the possibility that tasks can get bursts of cpu activity >> which can favour towards interactive tasks but also favour towards cpu bound >> tasks which happen to wait on other activity (such as I/O) and is a net >> gain. >> > > I'm not sure this is going in the right direction... I'm writing > this while compiling a kernel w/ "nice -20 make -j2" and X is almost > Did you mean "nice -20"? If so, that should have slowed X quite a bit. Try "nice 19" instead.
nice(1): Run COMMAND with an adjusted niceness, which affects process scheduling. With no COMMAND, print the current niceness. Nicenesses range from -20 (most favorable scheduling) to 19 (least favorable).
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