Comment 6 for bug 709245
Revision history for this message
| mahmoh (mahmoh) wrote Re: panda: USB disk IO slow | #6 |
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0e1f616
(Get the code!)
Ran a quick benchmark with and without ping -f and 20x performance increase with ping vs. without (below); I'd like to see this bumped up to High since this poor performance is impacting testing using these boards. I also came across a similar problem on another board that may help with a fix (or not - https:/
Linux panda-qa1 2.6.38-1309-omap4 #14-Ubuntu SMP PREEMPT Wed Jul 6 09:42:21 UTC 2011 armv7l armv7l armv7l GNU/Linux
Description: Ubuntu oneiric (development branch)
Release: 11.10
<NO PING>
# phoronix-test-suite run pts/tiobench
Phoronix Test Suite v3.2.0
Threaded I/O Tester Test Configuration
Test:
1: Write
2: Random Write
3: Read
4: Random Read
5: Test All Options
Enter Your Choice: 5
Size Per Thread:
1: 32MB
2: 64MB
3: 128MB
4: 256MB
5: Test All Options
Enter Your Choice: 1
Thread Count:
1: 4
2: 8
3: 16
4: 32
5: Test All Options
Enter Your Choice: 1
Would you like to save these test results (Y/n): n
Estimated Run-Time: 2 Hours, 31 Minutes
Threaded I/O Tester:
pts/
Test 1 of 4
Estimated Time Remaining: 2 Hours, 31 Minutes
Estimated Test Run-Time: 38 Minutes
Expected Trial Run Count: 4
Started Run 1 @ 17:28:21
Started Run 2 @ 17:28:45
Started Run 3 @ 17:29:09
Started Run 4 @ 17:29:32 [Std. Dev: 2.16%]
Test Results:
6.273
6.195
6.388
6.508
Average: 6.34 MB/s
Threaded I/O Tester:
pts/
Test 2 of 4
Estimated Time Remaining: 1 Hour, 53 Minutes
Estimated Test Run-Time: 38 Minutes
Expected Trial Run Count: 4
Started Run 1 @ 17:29:59
Started Run 2 @ 17:31:40
Started Run 3 @ 17:33:08
<START PING>
Started Run 4 @ 17:33:26 [Std. Dev: 104.51%]
Started Run 5 @ 17:33:40 [Std. Dev: 84.05%]
Started Run 6 @ 17:33:55 [Std. Dev: 71.87%]
Started Run 7 @ 17:34:09 [Std. Dev: 63.69%]
Started Run 8 @ 17:34:24 [Std. Dev: 61.29%]
Test Results:
0.206
0.241
4.493
4.476
4.623
4.461
4.534
2.534
Average: 3.20 MB/s
^C
# uname -a
Linux panda-qa1 2.6.38-1309-omap4 #14-Ubuntu SMP PREEMPT Wed Jul 6 09:42:21 UTC 2011 armv7l armv7l armv7l GNU/Linux
root@panda-
Phoronix Test Suite v3.2.0
Threaded I/O Tester Test Configuration
Test:
1: Write
2: Random Write
3: Read
4: Random Read
5: Test All Options
Enter Your Choice: 5
Size Per Thread:
1: 32MB
2: 64MB
3: 128MB
4: 256MB
5: Test All Options
Enter Your Choice: 1
Thread Count:
1: 4
2: 8
3: 16
4: 32
5: Test All Options
Enter Your Choice: 1
Would you like to save these test results (Y/n): n
Estimated Run-Time: 2 Hours, 9 Minutes
Threaded I/O Tester:
pts/
Test 1 of 4
Estimated Time Remaining: 2 Hours, 9 Minutes
Estimated Test Run-Time: 33 Minutes
Expected Trial Run Count: 4
Started Run 1 @ 17:46:16
Started Run 2 @ 17:46:26
Started Run 3 @ 17:46:36
Started Run 4 @ 17:46:46 [Std. Dev: 0.58%]
Test Results:
19.276
19.526
19.311
19.323
Average: 19.36 MB/s
Threaded I/O Tester:
pts/
Test 2 of 4
Estimated Time Remaining: 1 Hour, 37 Minutes
Estimated Test Run-Time: 33 Minutes
Expected Trial Run Count: 4
Started Run 1 @ 17:47:00
Started Run 2 @ 17:47:14
Started Run 3 @ 17:47:28
Started Run 4 @ 17:47:42 [Std. Dev: 1.58%]
Test Results:
4.905
4.72
4.815
4.799
Average: 4.81 MB/s