On 05/19/2011 03:35 PM, Tomas Ögren wrote: > On 19 May, 2011 - Sa??o Kiselkov sent me these 0,6K bytes: > >> Hi all, >> >> I'd like to ask whether there is a way to monitor disk seeks. I have an >> application where many concurrent readers (>50) sequentially read a >> large dataset (>10T) at a fairly low speed (8-10 Mbit/s). I can monitor >> read/write ops using iostat, but that doesn't tell me how contiguous the >> data is, i.e. when iostat reports "500" read ops, does that translate to >> 500 seeks + 1 read per seek, or 50 seeks + 10 reads, etc? Thanks! > > Get DTraceToolkit and check out the various things under Disk and FS, > might help. > > /Tomas
Thank you all for the tips, I'll try to poke around using the DTrackToolkit. Regards, -- Saso _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
