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Linux IO tuning

mack663mack663 Posts: 1
edited March 2017 in System Management

Hello ,

Redhat Enterprise 7.3 64bit , 8cpu  ,16gb Ram , 250gb HDD or 240gb SDD

The following values are default

 

/sys/block/*/queue/rq_affinity 


/sys/block/*/queue/scheduler 


/sys/block/*/queue/nr_requests 


/sys/block/*/queue/read_ahead_kb


 


linux io tuning best practices


 



/sys/block/*/queue/rq_affinity 2


/sys/block/*/queue/scheduler noop


/sys/block/*/queue/nr_requests 256


/sys/block/*/queue/read_ahead_kb 512


 


How is the performance effects?


 


 


 


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