> > Ah, this looks great! You added 50% IOPs with the doubling of procs, > and I would bet you could squeeze a little more out by going to 24 or 32 > procs.
Children see throughput for 1 random writers = 44703.30 KB/sec Children see throughput for 2 random writers = 80244.89 KB/sec Children see throughput for 4 random writers = 123348.99 KB/sec Children see throughput for 8 random writers = 202080.27 KB/sec Children see throughput for 16 random writers = 287422.56 KB/sec Children see throughput for 24 random writers = 322134.46 KB/sec Children see throughput for 32 random writers = 307318.69 KB/sec Children see throughput for 64 random writers = 329277.73 KB/sec Children see throughput for 1 random readers = 115058.72 KB/sec Children see throughput for 2 random readers = 197125.98 KB/sec Children see throughput for 4 random readers = 373389.84 KB/sec Children see throughput for 8 random readers = 701358.48 KB/sec Children see throughput for 16 random readers = 1106813.94 KB/sec Children see throughput for 24 random readers = 1323350.00 KB/sec Children see throughput for 32 random readers = 1326093.64 KB/sec Children see throughput for 64 random readers = 1331465.57 KB/sec Somewhat.. I have 16 physical cores on this machine btw. These numbers seem awfully low however. Each process seems to be limited to 7000 or so IOPS. I was trying to test this in the local tempfs but I got an error.... Can not open temp file: iozone.tmp open: Invalid argument Not sure what is going on there. _______________________________________________ Beowulf mailing list, Beowulf@beowulf.org sponsored by Penguin Computing To change your subscription (digest mode or unsubscribe) visit http://www.beowulf.org/mailman/listinfo/beowulf