Created
June 20, 2012 09:31
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The performance impact of LVM snapshot
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| rainux@kerrigan ~ | |
| % YUKI.N> bonnie++ | |
| Writing with putc()...done | |
| Writing intelligently...done | |
| Rewriting...done | |
| Reading with getc()...done | |
| Reading intelligently...done | |
| start 'em...done...done...done... | |
| Create files in sequential order...done. | |
| Stat files in sequential order...done. | |
| Delete files in sequential order...done. | |
| Create files in random order...done. | |
| Stat files in random order...done. | |
| Delete files in random order...done. | |
| Version 1.03e ------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 | |
| kerrigan 16G 92853 92 95206 22 36664 11 87646 84 75233 10 219.1 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 +++++ +++ +++++ +++ +++++ +++ +++++ +++ +++++ +++ +++++ +++ | |
| kerrigan,16G,92853,92,95206,22,36664,11,87646,84,75233,10,219.1,1,16,+++++,+++,+++++,+++,+++++,+++,+++++,+++,+++++,+++,+++++,+++ | |
| rainux@kerrigan ~ | |
| # YUKI.N> sudo lvcreate -C y -L 120G -s -n home_snapshot /dev/swarm/home | |
| Logical volume "home_snapshot" created | |
| rainux@kerrigan ~ | |
| % YUKI.N> bonnie++ | |
| Writing with putc()...done | |
| Writing intelligently...done | |
| Rewriting...done | |
| Reading with getc()...done | |
| Reading intelligently...done | |
| start 'em...done...done...done... | |
| Create files in sequential order...done. | |
| Stat files in sequential order...done. | |
| Delete files in sequential order...done. | |
| Create files in random order...done. | |
| Stat files in random order...done. | |
| Delete files in random order...done. | |
| Version 1.03e ------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 | |
| kerrigan 16G 23901 36 23508 4 37656 15 89257 86 121028 30 278.2 2 | |
| ------Sequential Create------ --------Random Create-------- | |
| -Create-- --Read--- -Delete-- -Create-- --Read--- -Delete-- | |
| files /sec %CP /sec %CP /sec %CP /sec %CP /sec %CP /sec %CP | |
| 16 +++++ +++ +++++ +++ +++++ +++ +++++ +++ +++++ +++ +++++ +++ | |
| kerrigan,16G,23901,36,23508,4,37656,15,89257,86,121028,30,278.2,2,16,+++++,+++,+++++,+++,+++++,+++,+++++,+++,+++++,+++,+++++,+++ |
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