quarta-feira, 25 de junho de 2014

Why %util number from iostat is meaningless for MySQL capacity planning

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Earlier this month I wrote about vmstat iowait cpu numbers and some of the comments I got were advertising the use of util% as reported by the iostat tool instead. I find this number even more useless for MySQL performance tuning and capacity planning. Now let me start by saying this is a really tricky and deceptive number. Many […]

The post Why %util number from iostat is meaningless for MySQL capacity planning appeared first on MySQL Performance Blog.



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