Comment 5 for bug 367098

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Vladimir Kolesnikov (vkolesnikov) wrote :

my earlier tests showed that in some disk-bound workloads smaller pbxt_checkpoint_frequency gives less fsyncs. For example pbxt_checkpoint_frequency=100MB gave 2x fsyncs as pbxt_checkpoint_frequency=1MB. My test case was not exactly like this and data set was smaller but I think at the engine level there could be similarities. Of course this is not the solution of the entire problem but this can improve performance...