gmirror performance patch
Michael Monashev
softsearch at gmail.com
Sat Sep 20 09:53:26 UTC 2008
Hi.
MM> Patch for improve gmirror performance:
MM> http://www.freebsd.org/cgi/query-pr.cgi?pr=113885
before:
>gstat -I5s
dT: 5.384s w: 5.000s
L(q) ops/s r/s kBps ms/r w/s kBps ms/w %busy Name
12 118 117 1372 349.0 1 12 383.6 100.0| ad4
4 117 116 1349 297.5 1 12 30.7 99.8| ad6
38 131 130 1323 459.9 1 9 415.0 100.0| ad8
62 126 125 1418 534.5 1 9 291.9 98.9| ad10
34 131 129 1403 639.0 2 128 783.4 100.1| ad12
47 131 129 1525 747.4 2 128 1044.4 100.1| ad14
after patch:
>gstat -I5s
dT: 5.001s w: 5.000s
L(q) ops/s r/s kBps ms/r w/s kBps ms/w %busy Name
40 93 92 1072 101.4 1 54 20.7 79.3| ad4
8 114 113 1645 285.0 1 54 87.7 95.8| ad6
6 52 45 451 23.8 7 312 19.0 44.3| ad8
85 143 136 1753 1428.8 7 312 556.6 100.2| ad10
28 91 91 707 217.0 0 0 0.1 79.1| ad12
100 129 128 1488 894.8 0 0 956.9 100.0| ad14
>gstat -I5s
dT: 5.001s w: 5.000s
L(q) ops/s r/s kBps ms/r w/s kBps ms/w %busy Name
10 84 83 1239 86.1 1 10 123.1 65.6| ad4
34 121 120 1698 254.2 1 10 215.8 97.3| ad6
50 132 132 1841 481.3 0 0 0.0 99.9| ad8
0 63 63 685 46.3 0 0 0.0 57.0| ad10
70 131 131 2124 532.5 0 0 166.7 100.0| ad12
0 92 91 893 69.1 1 0 49.6 80.4| ad14
--
Michael
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