Hi Marcelo,
> > I do, people I know do also, numbers of those people only _I_ know are
> > about ~30. I've reported this problem over a year ago while 2.4.19-pre
> > time.
> Can you please try to reproduce it with -aa?
not again ;)
I've tried almost all known kernel tree's around, every kernel has the same
effect. I even tried SuSE and Redhat Kernels.
I've 'wasted' tons of time just find a solution for it.
Andrea introduced, to address _exact_ this problem (pauses, stops, mouse is
dead etc.), his lowlatency elevator. Side effect: decreases i/o throughput,
and the "pauses/stops" are still there. Much less but not gone.
The _only_ workaround yet (known to the public) is to change nr_requests in
drivers/block/ll_rw_blk.c from 128 to 4 which gives a performance hit of
about 40% (not acceptable in any way).
.oO( I am quite sure I've mailed you all this stuff privately in response to
your private mail to me ;) )Oo.
ciao, Marc
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