Messages in this thread | | | Date | Tue, 16 Mar 2004 10:03:39 -0500 | From | Timothy Miller <> | Subject | Re: dynamic sched timeslices |
| |
Kurt Garloff wrote: > Hi, > > attached patch allows userspace to tune the scheduling timeslices. > It can be used for a couple of things: > * Tune a workload for batch processing: > You'd probably wnat to use long timeslices in order to not reschedule > as often to make good use of your CPU caches > * Tune a workload for interactive use: > Under load, you may want to reduce the scedulilng latencies by using > shorter timeslices (and there are situations where the interactiviy > tweak -- even if they were perfect -- can't save you). > * Tune the ration betweeen maximum and minimum timeslices to make > nice much nicer e.g. > > The patch exports /proc/sys/kernel/max_timeslice and min_timeslice, > unites are us. It also exports HZ (readonly). > The patch implementes the desktop boot parameter which introduces > shorter timeslices. > > Patch is from andrea and is in our 2.4 tree; 2.6 port was done by me and > straightforward. > > Regards,
If this doesn't change the total amount of CPU a process can get but lets a process tweak how its CPU time is divided up, then it sounds wonderful.
- 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/
| |