前後のベンチマーク結果。
# yum install dbench
$ dbench 8 --timelimit 60
Before Throughput 25.9628 MB/sec
Operation Count AvgLat MaxLat ---------------------------------------- NTCreateX 49828 0.041 128.998 Close 36650 0.003 3.863 Rename 2115 0.091 5.419 Unlink 9999 0.130 139.110 Qpathinfo 44985 0.014 8.839 Qfileinfo 7863 0.002 0.059 Qfsinfo 8250 0.006 4.144 Sfileinfo 4122 0.196 202.409 Find 17409 0.044 5.301 WriteX 24607 0.404 1416.807 ReadX 77953 0.009 4.474 LockX 160 0.006 0.023 UnlockX 160 0.011 1.075 Flush 3534 131.012 3301.656 Throughput 25.9628 MB/sec 8 clients 8 procs max_latency=3301.664 ms
After Throughput 133.639 MB/sec
Operation Count AvgLat MaxLat ---------------------------------------- NTCreateX 257756 0.040 14.650 Close 189285 0.005 10.031 Rename 10922 0.133 294.111 Unlink 52087 0.089 20.012 Qpathinfo 233746 0.017 14.083 Qfileinfo 40751 0.002 0.764 Qfsinfo 42844 0.006 6.097 Sfileinfo 21004 0.102 10.199 Find 90318 0.046 13.483 WriteX 127333 0.069 286.054 ReadX 404360 0.011 294.078 LockX 840 0.006 0.054 UnlockX 840 0.004 0.037 Flush 18078 23.925 771.931 Throughput 133.639 MB/sec 8 clients 8 procs max_latency=771.939 ms約５倍早くなったので満足。
物理交換した時の流れは以下。
