Laurent Laborde <kerdez...@gmail.com> wrote: > BTW, if you have any idea to improve IO performance, i'll happily > read it. We're 100% IO bound. At the risk of stating the obvious, you want to make sure you have high quality RAID adapters with large battery backed cache configured to write-back. If you haven't already done so, you might want to try elevator=deadline. > xfs ? If you use xfs and have the aforementioned BBU cache, be sure to turn write barriers off. -Kevin
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