On Wed, 26 Sep 2007, Ralf Gross wrote:
Justin Piszcz schrieb:
What was the command line you used for that output?
tiobench.. ?
tiobench --numruns 3 --threads 1 --threads 2 --block 4096 --size 20000
--size 20000 because the server has 16 GB RAM.
Ralf
Here is my output on my SW RAID5 keep in mind it is currently being used so the numbers are a little slower than they probably should be:
My machine only has 8 GiB of memory but I used the same command you did:
This is with the 2.6.22.6 kernel, the 2.6.23-rcX/final when released is supposed to have the SW RAID5 accelerator code, correct?
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
---------------------------- ------ ----- --- ------ ------ --------- ----------- -------- -------- -----
2.6.22.6 20000 4096 1 523.01 45.79% 0.022 510.77 0.00000 0.00000 1142
2.6.22.6 20000 4096 2 501.29 85.84% 0.046 855.59 0.00000 0.00000 584
Random Reads
File Blk Num Avg Maximum Lat% Lat% CPU
Identifier Size Size Thr Rate (CPU%) Latency Latency >2s >10s Eff
---------------------------- ------ ----- --- ------ ------ --------- ----------- -------- -------- -----
2.6.22.6 20000 4096 1 0.90 0.276% 13.003 74.41 0.00000 0.00000 326
2.6.22.6 20000 4096 2 1.61 1.167% 14.443 126.43 0.00000 0.00000 137
Sequential Writes
File Blk Num Avg Maximum Lat% Lat% CPU
Identifier Size Size Thr Rate (CPU%) Latency Latency >2s >10s Eff
---------------------------- ------ ----- --- ------ ------ --------- ----------- -------- -------- -----
2.6.22.6 20000 4096 1 363.46 75.72% 0.030 2757.45 0.00000 0.00000 480
2.6.22.6 20000 4096 2 394.45 287.9% 0.056 2798.92 0.00000 0.00000 137
Random Writes
File Blk Num Avg Maximum Lat% Lat% CPU
Identifier Size Size Thr Rate (CPU%) Latency Latency >2s >10s Eff
---------------------------- ------ ----- --- ------ ------ --------- ----------- -------- -------- -----
2.6.22.6 20000 4096 1 3.16 1.752% 0.011 1.02 0.00000 0.00000 180
2.6.22.6 20000 4096 2 3.07 3.769% 0.013 0.10 0.00000 0.00000 82
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