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Tuning CFQ - What Station is That?

Article Source Linux Magazine
October 14, 2009, 8:11 am

The previous article was an overview of the four standard IO schedulers in the Linux kernel. These IO schedulers are very crucial in determining the IO performance of your hand-held, laptop, desktop, server (of various flavors), or supercomputer nodes. It’s possible to tune the IO scheduler for, possibly, better performance.

This article presents an example of one possible tuning option for the default IO scheduler, CFQ. It adjust just one parameter but the point is to show you that it’s possible and, more importantly, remind you to measure the performance both before and after the changes to determine the effect of the parameter change...

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