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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