[CentOS] LVM appears to be very expensive on CentOS 7
Gordon Messmer
gordon.messmer at gmail.comTue Dec 20 00:12:21 UTC 2016
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After running a long series of benchmarks, it looks like there is a very significant performance difference between systems using LVM and systems not using LVM under CentOS 7. I'd appreciate it if anyone else can confirm these results. There are a couple of other surprising aspects of the results, especially that the default storage configuration (LVM and 512k blocks) appears to be the worst configuration possible, when using RAID5 (and probably RAID6). https://plus.google.com/+GordonMessmer/posts/H5DuyP1LHPU?sfc=true
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