Andrew Morton wrote:
>
> A patch against kernel 2.4.0 final which provides low-latency
> scheduling is at
>
> http://www.uow.edu.au/~andrewm/linux/schedlat.html#downloads
>
This has been updated for 2.4.1-pre3
- Fixed latency problems with some /proc files and forking
when many files are open.
- Fixed the tcp-minisocks thing.
- The patch now works properly on SMP.
If a wakeup is directed to a SCHED_FIFO or SCHED_RR
task then we request a reschedule on *all* non-idle
CPUs.
This causes any CPU which is holding a long-lived
spinlock to bale out, allowing the target CPU to
acquire the spinlock and then reschedule normally.
Bit of a hack, but it works very well and there
is no impact on the system unless there are
non-SCHED_OTHER tasks running.
Five lines of code :)
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
Please read the FAQ at http://www.tux.org/lkml/
This archive was generated by hypermail 2b29 : Mon Jan 15 2001 - 21:00:38 EST