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ssd_bench.txt
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ssd_bench.txt
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On RAID-ed SSDs:
(matt@hiro) ~/workspace/code/tiobench (mattcaron)$ sudo ./tiobench.pl --flushCaches
Unit information
================
File size = megabytes (2^20 bytes, 1,048,576 bytes)
Blk Size = bytes
Rate = megabytes per second
CPU% = percentage of CPU used during the test
Latency = milliseconds
Lat% = percent of requests that took longer than X seconds
CPU Eff = Rate divided by CPU% - throughput per cpu load
Sequential Reads
================
File Blk Num Avg Maximum Lat% Lat% CPU
Identifier Size Size Thr Rate (CPU%) Latency Latency >2s >10s Eff
---------------------------- ------ ------ --- -------- ------ --------- ----------- -------- -------- -----
3.13.0-77-generic 31498 4096 1 407.27 23.64% 0.010 12.58 0.00000 0.00000 1723
3.13.0-77-generic 31498 4096 2 582.40 30.60% 0.013 23.58 0.00000 0.00000 1903
3.13.0-77-generic 31498 4096 4 824.27 39.08% 0.019 14.50 0.00000 0.00000 2109
3.13.0-77-generic 31498 4096 8 928.40 40.33% 0.033 299.67 0.00000 0.00000 2302
Random Reads
============
File Blk Num Avg Maximum Lat% Lat% CPU
Identifier Size Size Thr Rate (CPU%) Latency Latency >2s >10s Eff
---------------------------- ------ ------ --- -------- ------ --------- ----------- -------- -------- -----
3.13.0-77-generic 31498 4096 1 38000.68 6.140% 0.150 1.07 0.00000 0.00000 #####
3.13.0-77-generic 31498 4096 2 57964.67 0% 0.162 4.35 0.00000 0.00000 #####
3.13.0-77-generic 31498 4096 4 61145.41 0% 0.188 9.29 0.00000 0.00000 #####
3.13.0-77-generic 31498 4096 8 69058.06 0% 0.220 13.61 0.00000 0.00000 #####
Sequential Writes
=================
File Blk Num Avg Maximum Lat% Lat% CPU
Identifier Size Size Thr Rate (CPU%) Latency Latency >2s >10s Eff
---------------------------- ------ ------ --- -------- ------ --------- ----------- -------- -------- -----
3.13.0-77-generic 31498 4096 1 383.82 26.44% 0.010 749.71 0.00000 0.00000 1451
3.13.0-77-generic 31498 4096 2 325.99 26.36% 0.024 1841.72 0.00000 0.00000 1236
3.13.0-77-generic 31498 4096 4 292.44 23.65% 0.052 1511.37 0.00000 0.00000 1236
3.13.0-77-generic 31498 4096 8 256.29 20.38% 0.118 1492.93 0.00000 0.00000 1257
Random Writes
=============
File Blk Num Avg Maximum Lat% Lat% CPU
Identifier Size Size Thr Rate (CPU%) Latency Latency >2s >10s Eff
---------------------------- ------ ------ --- -------- ------ --------- ----------- -------- -------- -----
3.13.0-77-generic 31498 4096 1 85483.21 0% 0.002 0.03 0.00000 0.00000 #####
3.13.0-77-generic 31498 4096 2 77623.34 0% 0.003 0.02 0.00000 0.00000 #####
3.13.0-77-generic 31498 4096 4 73434.37 0% 0.004 0.11 0.00000 0.00000 #####
3.13.0-77-generic 31498 4096 8 58647.40 0% 0.016 18.49 0.00000 0.00000 #####