Centos IOWAIT Issues Discussion

As many of you know theres problems with the recent kernel and many people are compiling new kernels and such.

However by default 2.6 kernel uses the AS io scheduler. Ive been doing some testing, and using the cfq scheduler increases performence in most cases.

What i would like is, if people are willing to test it out and see how it works out.

You must have cfq compiled into the kernel which you probably do. a the end of your kernel line add the following:

elevator=cfq

example:

kernel /vmlinuz-2.6.14.2 ro root=/dev/hdb2 elevator=cfq

 

 

 

 

Top