On Sat, 2006-02-18 at 00:47 -0800, Kevin Cosgrove wrote: > On 18 February 2006 at 0:15, Lee Revell <rlrevell@xxxxxxxxxxx> wrote: > > > This helps a lot: > > echo 64 > /sys/block/hdc/queue/max_sectors_kb > > (replace hdc with your drive, repeat for all of them) > > Interesting. What does that do? It limits the amount of disk IO that can be "in flight" at once, which limits the amount of work the IDE driver will do in a single interrupt, which improves the worst case disk IO induced latency. It's not going to help with an -rt kernel, only mainline. I'd be interested to see what results people get... Lee
