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SubjectRe: I/O issues, iowait problems, 2.4 v 2.6
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On Mon, 2003-11-10 at 23:54, Andrew Morton wrote:

> OK, the IO rates are obviously very poor, and the context switch rate is
> suspicious as well. Certainly, testing with the single disk would help.

I pulled the secondary, reconfigured to single drives and rebooted. All
is now well, performance is right where it should be.


0 0 0 1475924 7052 42384 0 0 0 0 1015 6
0 0 0 1475284 7076 42360 0 0 0 156 1041 311
0 0 0 1475284 7076 42360 0 0 0 0 1016 12
0 0 0 1475284 7076 42360 0 0 0 0 1026 30
2 0 0 1252628 7300 258852 0 0 8 37240 1157 119
0 3 0 1027284 7524 478064 0 0 8 66016 1441 317
1 3 0 818132 7728 682948 0 0 4 70752 1439 202
1 3 0 593236 7944 901760 0 0 4 64576 1452 92
0 4 0 531412 8008 961876 0 0 4 63680 1434 97
1 3 0 455604 8084 1035648 0 0 4 69312 1464 103
0 4 0 388148 8148 1101272 0 0 0 66328 1442 141
0 4 0 308172 8228 1179120 0 0 4 69964 1446 100
0 5 0 257548 8280 1228436 0 0 4 67548 1460 148
1 2 0 195340 8356 1288948 0 0 0 63444 1452 291
0 5 0 115532 8436 1367884 0 0 4 73896 1448 319


-Paul



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