环境:
- Red Hat Enterprise Linux 4
- Red Hat Enterprise Linux 5
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
On RHEL4:
configure the cpu speed to run at MAX speed all the time by adding the following parameter into the file /etc/cpuspeed.conf and restart the cpuspeed service:
vim /etc/cpuspeed.conf
插入或修改:
OPTS="$OPTS -n -C -S \\"0 1\\""
/etc/init.d/cpuspeed restart
On RHEL 5:
add the above parameters to /etc/sysconfig/cpuspeed or use the performance governor by adding the following parameter to the /etc/sysconfig/cpuspeed file and restart the cpuspeed service:
vim /etc/sysconfig/cpuspeed
插入或修改:
GOVERNOR=performance
/etc/init.d/cpuspeed restart
On RHEL 6:
configure the performance cpuspeed governor as above for RHEL 5 and add the following kernel boot options and restart the server. More information available in the Low Latency Performance Tuning for Red Hat Enterprise Linux 6 article.
/etc/init.d/cpuspeed stop # 开启性能模式
processor.max_cstate=1 intel_idle.max_cstate=0 idle=poll