IOZONE tests run locally on single GPFS NSD server
fermi-gpfs02 2@md3460 12 NSD 1 MB block system pool 180 disks
128 GB test file (2 x pagepool)
/u/sf/jonl/bin/iozone.64bit.linux -i 0 -i 1 -t1 -s 128g -r 1024k
Children see throughput for 1 initial writers = 2252747.50 KB/sec
Children see throughput for 1 rewriters = 2882751.25 KB/sec
Children see throughput for 1 readers = 5792810.50 KB/sec
Children see throughput for 1 re-readers = 6415035.00 KB/sec
/u/sf/jonl/bin/iozone.64bit.linux -i 0 -i 1 -t16 -s 8g -r 1024k
Children see throughput for 16 initial writers = 4105424.03 KB/sec
Children see throughput for 16 rewriters = 4373855.06 KB/sec
Children see throughput for 16 readers = 3360698.11 KB/sec
Children see throughput for 16 re-readers = 3645976.38 KB/sec
/u/sf/jonl/bin/iozone.64bit.linux -i 0 -i 1 -t64 -s 2g -r 1024k
Children see throughput for 64 initial writers = 4355696.19 KB/sec
Children see throughput for 64 rewriters = 4543685.04 KB/sec
Children see throughput for 64 readers = 4547132.21 KB/sec
Children see throughput for 64 re-readers = 4899993.23 KB/sec
/u/sf/jonl/bin/iozone.64bit.linux -i 0 -i 1 -t128 -s 1g -r 1024k
Children see throughput for 128 initial writers = 4389975.53 KB/sec
Children see throughput for 128 rewriters = 4471355.97 KB/sec
Children see throughput for 128 readers = 4157457.52 KB/sec
Children see throughput for 128 re-readers = 4448983.88 KB/sec
/u/sf/jonl/bin/iozone.64bit.linux -i 0 -i 1 -t256 -s 500m -r 1024k
Children see throughput for 256 initial writers = 4199890.35 KB/sec
Children see throughput for 256 rewriters = 4322276.21 KB/sec
Children see throughput for 256 readers = 4153519.73 KB/sec
Children see throughput for 256 re-readers = 4731652.91 KB/sec