Ben's

AMD PowerNow! must be disabled on all systems. The following steps must be followed to disable AMD PowerNow!: •chkconfig --level 12345 cpuspeed off •Reboot the server ======================================================================= [root@nhkotest-001 ~]# echo 0 > /sys/devices/system/cpu/cpu32/online

http://www.absolutelytech.com/2011/08/01/how-to-disable-cpu-cores-in-linux/

* 아래의 방법으로 인위적으로 megasas 장치의 CPU별 인터럽트 분배를 조작함. - CPU0 번만 쓰게 하기 [root@nhkotest ~]# echo '0000001' > /proc/irq/78/smp_affinity; cat /proc/irq/78/smp_affinity 00000001 - 전체 CPU 갯수 만큼 분산시켜 쓰게 하기 [root@nhkotest ~]# echo 'ffffffff' > /proc/irq/78/smp_affinity; cat /proc/irq/78/smp_affinity ffffffff * 테스트 결과: 위와 같이 조작한후 iotest 해봄. [irqbalance 끄고, CPU 1개만 처리하게 했을때] Version 1.03 ------Sequential Output-..