Results are not varying much since last 6 kernel releases. There is a very marginal increase in CPU efficiency.
Latencies have also risen but not by more than 5%.
No size specified, using 252 MB
Unit information
================
File size = megabytes
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
---------------------------- ------ ----- --- ------ ------ --------- ----------- -------- -------- -----
2.5.68 252 4096 10 6.76 3.458% 15.704 2658.86 0.00000 0.00000 196
Random Reads
File Blk Num Avg Maximum Lat% Lat% CPU
Identifier Size Size Thr Rate (CPU%) Latency Latency >2s >10s Eff
---------------------------- ------ ----- --- ------ ------ --------- ----------- -------- -------- -----
2.5.68 252 4096 10 0.47 0.441% 221.819 1993.16 0.00000 0.00000 106
Sequential Writes
File Blk Num Avg Maximum Lat% Lat% CPU
Identifier Size Size Thr Rate (CPU%) Latency Latency >2s >10s Eff
---------------------------- ------ ----- --- ------ ------ --------- ----------- -------- -------- -----
2.5.68 252 4096 10 10.80 16.35% 6.656 32552.30 0.10938 0.00469 66
Random Writes
File Blk Num Avg Maximum Lat% Lat% CPU
Identifier Size Size Thr Rate (CPU%) Latency Latency >2s >10s Eff
---------------------------- ------ ----- --- ------ ------ --------- ----------- -------- -------- -----
2.5.68 252 4096 10 0.66 0.773% 1.524 1265.13 0.00000 0.00000 85
-Aniruddha
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This archive was generated by hypermail 2b29 : Wed Apr 30 2003 - 22:00:20 EST