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Re: MySQL became too slowly when using O_DIRECT
Posted by: Jerry Lin
Date: June 07, 2018 08:55PM

Hi ,
That's my mistake.
The OS is ubuntu 16.04 and MySQL is 5.7.22.
I don't think used the O_DIRECT will be too much slow than used fsync.
This performace has big gap ,I don't know why reason to cause this big gap ?

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