On Tue, May 01, 2012 at 03:21:05AM -0700, Gary Driggs wrote: > On May 1, 2012, at 1:41 AM, Ray Van Dolson wrote: > > > Throughput: > > iozone -m -t 8 -T -r 128k -o -s 36G -R -b bigfile.xls > > > > IOPS: > > iozone -O -i 0 -i 1 -i 2 -e -+n -r 128K -s 288G > iops.txt > > Do you expect to be reading or writing 36 or 288Gb files very often on > this array? The largest file size I've used in my still lengthy > benchmarks was 16Gb. If you use the sizes you've proposed, it could > take several days or weeks to complete. Try a web search for "iozone > examples" if you want more details on the command switches. > > -Gary
The problem is this box has 144GB of memory. If I go with a 16GB file size (which I did), then memory and caching influences the results pretty severely (I get around 3GB/sec for writes!). Obviously, I could yank RAM for purposes of benchmarking..... :) Thanks, Ray _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
