On Wed, Sep 30, 2009 at 10:05:39PM +0200, Mike Galbraith wrote: > > > > /* > > + * We may have seeky queues, don't throttle up just yet. > > + */ > > + if (time_before(jiffies, cfqd->last_seeker + CIC_SEEK_THR)) > > + return 0; > > + > > bzzzt. Window too large, but the though is to let them overload, but > not instantly. > CIC_SEEK_THR is 8K jiffies so that would be 8seconds on 1000HZ system. Try using one "slice_idle" period of 8 ms. But it might turn out to be too short depending on the disk speed. Thanks Vivek -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel
