IBM Power
Disable HW prefetch
Melting
2011. 11. 16. 13:35
> dscrctl -n -s 1
> This can be tried on the fly to see the performance impact. The command is "dscrctl -n -s 1". To get it to stick after a reboot, the command is "dscrctl -b -s 1". Substituting "-s 0" instead of "-s 1" sets the value back to the default. When evaluating the performance impact, consider both the change in application throughput and CPU utilization. This is useful to try on all servers, but will probably benefit those with higher CPU utilization the most
> This can be tried on the fly to see the performance impact. The command is "dscrctl -n -s 1". To get it to stick after a reboot, the command is "dscrctl -b -s 1". Substituting "-s 0" instead of "-s 1" sets the value back to the default. When evaluating the performance impact, consider both the change in application throughput and CPU utilization. This is useful to try on all servers, but will probably benefit those with higher CPU utilization the most
> 운영환경이 아니라, BMT와 같이 performace가 중요한 환경에서만 권장