Mike Galbraith wrote:
>
> On Tue, 28 Aug 2001, Dieter N|tzel wrote:
>
> > * readahead do not show dramatic differences
> > * killall -STOP kupdated DO
> >
> > Yes, I know it is dangerous to stop kupdated but my disk show heavy thrashing
> > (seeks like mad) since 2.4.7ac4. killall -STOP kupdated make it smooth and
> > fast, again.
>
> Interesting.
>
> A while back, I twiddled the flush logic in buffer.c a little and made
> kupdated only handle light flushing.. stay out of the way when bdflush
> is running. This and some dynamic adjustment of bdflush flushsize and
> not stopping flushing right _at_ (biggie) the trigger level produced
> very interesting improvements. (very marked reduction in system time
> for heavy IO jobs, and large improvement in file rewrite throughput)
>
> -Mike
Can you send us the patch, and Elena will run some tests on it?
Hans
-
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/
This archive was generated by hypermail 2b29 : Fri Aug 31 2001 - 21:00:28 EST