【文件属性】:
文件名称:AIX 系统性能分析及调优
文件大小:123KB
文件格式:DOC
更新时间:2016-05-01 04:16:06
AIX
识别瓶颈
性能分析工具
性能调整工具
Bound Command Description
CPU bound vmstat when %user + %sys greater than 80%
Disk I/O bound vmstat when %iowait greater than 40% (AIX 4.3.3 or later)
Application disk bound iostat when %tm_act greater than 70%
Paging space low lsps –a when used paging space greater than 70% active
Paging bound iostat
vmstat paging logical volumes %tm_act greater than 30% of the I/O (iostat) and paging activity greater than 10 * the number of CPUs (vmstat)
Thrashing vmstat rising page outs, CPU wait and run queue