On Fri, 2009-10-02 at 20:26 +0200, Jens Axboe wrote: > On Fri, Oct 02 2009, Mike Galbraith wrote: > > On Fri, 2009-10-02 at 20:04 +0200, Jens Axboe wrote: > > > > > I'm not too crazy about it either. How about just using 'desktop' since > > > this is obviously what we are really targetting? 'latency' isn't fully > > > descriptive either, since it may not necessarily provide the best single > > > IO latency (noop would). > > > > Grin. "Perfect is the enemy of good" :) > > Avg > > 16.24 175.82 154.38 228.97 147.16 144.5 noop > > 43.23 57.39 96.13 148.25 180.09 105.0 deadline > > Yep, that's where it falls down. Noop basically fails here because it > treats all IO as equal, which obviously isn't true for most people. But > even for pure read workloads (is the above the mixed read/write, or just > read?), latency would be excellent with noop but the desktop experience > would not. Yeah, it's the dd vs konsole -e exit. -Mike -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel
