Hans du Plooy said at 09/09/2005 20:39:
Ronny Adsetts wrote:Let me know if you want any non-destructive testing run on it (and what you want run) and I'll see what I can do.If you can, I would appreciate it. If you have any disc other than the raid set, internal or a USB2 maybe - if the raid set can write at a sustained 30MB/s, I'm happy!
Couple of quick benchmarks for you.. bear in mind that it's a live system, but only a lightly loaded devel server. Disk/FS setup is XFS on LVM on HW RAID 5. Kernel is 2.6.8-11-em64t-p4-smp (stock debian) with Areca module compiled out of tree.
Tests were run on a new 20GB LV with XFS created and mounted using defaults.
bonnie++:
Version 1.03 ------Sequential Output------ --Sequential Input- --Random-
-Per Chr- --Block-- -Rewrite- -Per Chr- --Block-- --Seeks--
Machine Size K/sec %CP K/sec %CP K/sec %CP K/sec %CP K/sec %CP /sec %CP
vimes 8G 44145 99 168304 69 56194 30 24595 93 136782 32 476.5 1
------Sequential Create------ --------Random Create--------
-Create-- --Read--- -Delete-- -Create-- --Read--- -Delete--
files /sec %CP /sec %CP /sec %CP /sec %CP /sec %CP /sec %CP
16 16741 96 +++++ +++ 19335 99 14743 95 +++++ +++ 14688 99
vimes,8G,44145,99,168304,69,56194,30,24595,93,136782,32,476.5,1,16,16741,96,+++++,+++,19335,99,14743,95,+++++,+++,14688,99
tiobench:
Run #1: /usr/bin/tiotest -t 8 -f 1000 -r 500 -b 4096 -d . -TT
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
---------------------------- ------ ----- --- ------ ------ --------- ----------- -------- -------- -----
2.6.8-11-em64t-p4-smp 8000 4096 1 110.50 41.15% 0.034 3353.19 0.00010 0.00000 268
2.6.8-11-em64t-p4-smp 8000 4096 2 112.55 41.96% 0.068 6404.92 0.00015 0.00000 268
2.6.8-11-em64t-p4-smp 8000 4096 4 109.70 40.49% 0.139 4222.48 0.00049 0.00000 271
2.6.8-11-em64t-p4-smp 8000 4096 8 95.93 36.14% 0.311 11012.59 0.00059 0.00020 265
Random Reads
File Blk Num Avg Maximum Lat% Lat% CPU
Identifier Size Size Thr Rate (CPU%) Latency Latency >2s >10s Eff
---------------------------- ------ ----- --- ------ ------ --------- ----------- -------- -------- -----
2.6.8-11-em64t-p4-smp 8000 4096 1 0.96 0.774% 4.061 66.43 0.00000 0.00000 124
2.6.8-11-em64t-p4-smp 8000 4096 2 1.17 0.987% 6.575 124.58 0.00000 0.00000 118
2.6.8-11-em64t-p4-smp 8000 4096 4 1.63 1.190% 8.934 157.06 0.00000 0.00000 137
2.6.8-11-em64t-p4-smp 8000 4096 8 2.05 1.443% 12.722 350.17 0.00000 0.00000 142
Sequential Writes
File Blk Num Avg Maximum Lat% Lat% CPU
Identifier Size Size Thr Rate (CPU%) Latency Latency >2s >10s Eff
---------------------------- ------ ----- --- ------ ------ --------- ----------- -------- -------- -----
2.6.8-11-em64t-p4-smp 8000 4096 1 163.98 64.69% 0.022 2108.85 0.00010 0.00000 253
2.6.8-11-em64t-p4-smp 8000 4096 2 150.00 71.24% 0.048 12768.89 0.00010 0.00010 211
2.6.8-11-em64t-p4-smp 8000 4096 4 94.86 49.40% 0.127 20762.83 0.00054 0.00010 192
2.6.8-11-em64t-p4-smp 8000 4096 8 88.63 49.14% 0.260 27648.33 0.00146 0.00029 180
Random Writes
File Blk Num Avg Maximum Lat% Lat% CPU
Identifier Size Size Thr Rate (CPU%) Latency Latency >2s >10s Eff
---------------------------- ------ ----- --- ------ ------ --------- ----------- -------- -------- -----
2.6.8-11-em64t-p4-smp 8000 4096 1 72.64 61.36% 0.007 0.29 0.00000 0.00000 118
2.6.8-11-em64t-p4-smp 8000 4096 2 63.16 58.60% 0.018 2.55 0.00000 0.00000 108
2.6.8-11-em64t-p4-smp 8000 4096 4 44.17 39.28% 0.018 3.64 0.00000 0.00000 112
2.6.8-11-em64t-p4-smp 8000 4096 8 23.46 19.66% 0.017 5.24 0.00000 0.00000 119
Some of the numbers for tiobench look a little wonky, but I'm no expert on this and I don't have time to play around with it.
That said, I'm willing to try other stuff if anyone wants me to.
Ronny
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Amazing Internet Ltd, London
t: +44 20 8607 9535
f: +44 20 8607 9536
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