Jens Axboe wrote:
>
> ...
> > Yes, it could be per-queue. That would add complexity to
> > the already-murky fs/fs-writeback.c. It that justifiable?
>
> I dunno, it's up to you. I guess this is mainly IDE specific anyways,
> but you apply the same logic to just one (for instance) of your disks on
> a home desktop system.
Well it's a convenience thing. Not really worth a lot of code.
I expect most of the proposed functionality could be provided
from userspace anyway via the disk IO number in /proc/stat:
old_counts=get_counters()
while 1 {
sleep 5
if (old_counts != get_counters()) {
sync
sleep 10
old_counts = get_counters()
}
}
This doesn't have the "if we flushed for any reason, reset the
timer" optimisation. But it will work in 2.4.
So I think I'll just settle for making the ext3 journal timer
expiries tunable.
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This archive was generated by hypermail 2b29 : Fri Jun 07 2002 - 22:00:25 EST