Messages in this thread | | | Date | Sat, 5 Jul 2003 02:05:44 +0200 | From | Andrea Arcangeli <> | Subject | Re: Status of the IO scheduler fixes for 2.4 |
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On Fri, Jul 04, 2003 at 05:37:35PM -0400, Chris Mason wrote: > I've also attached a patch I've been working on to solve the latencies a > different way. bdflush-progress.diff changes balance_dirty to wait on > bdflush instead of trying to start io. It helps a lot here (both > throughput and latency) but hasn't yet been tested on a box with tons of > drives.
that's orthogonal, it changes the write throttling, it doesn't touch the blkdev layer like the other patches does. So if it helps it solves a different kind of latencies.
However the implementation in theory can run the box oom, since it won't limit the dirty buffers anymore. To be safe you need to wait 2 generations. I doubt in practice it would be easily reproducible though ;).
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