> . Considerable poking at the NFS MAP_SHARED OOM lockup. It is limping
> along now, but writeout bandwidth is poor and it is still struggling.
> Needs work.
>
> . There's a one-liner which removes an O(n^2) search in the NFS writeback
> path. It increases writeout bandwidth by 4x and decreases CPU load from
> 100% to 3%. Needs work.
I'm puzzled that you've had NFS stable enough to test these.
How much testing has this stuff had? Here 2.5.60+bk clients fall over under
moderate NFS load. (And go splat quickly under high load).
Trying to run things like dbench causes lockups, fsx/fstress made it
reboot, plus the odd 'cheating' errors reported yesterday.
Dave
-- | Dave Jones. http://www.codemonkey.org.uk | SuSE Labs - 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/