标题: LR测试Websphere MB消息转换 System mode CPU Utilization 一直100%！ [打印本页] 作者: oceanwell 时间: 2011-12-24 14:12 标题: LR测试Websphere MB消息转换 System mode CPU Utilization 一直100%！ LR测试Websphere MB消息转换,50个并发（单一简单业务，如产品查询），LR监听UNIX, System mode CPU Utilization 一直100！，User mode CPU Utilization不高，只有25.而请求响应时间也达到了5秒多，服务中并未启用其它抢占CPU的进程，只有MB的消息流进程。
前几还挺正常的，跑过一次50个并发的，响应时间也不过只有0.5秒，这两天不知道怎么回事。。
另外监听CPU,主要是监听System mode还是User mode?新手求教，作者: oceanwell 时间: 2011-12-24 16:14
topas
CPU User% Kern% Wait% Idle% Reads 1 Rawin 0
ALL 4.4 25.9 0.0 69.8
LR unix监听
CPU Utilization(Unix Kernel Statics) 100 100 100
nmon监听结果
0----------25-----------50----------75----------100 x
xCPU User% Sys% Wait% Idle%| | | | | x
x 0 8.5 1.5 0.0 90.0|UUUU> | x
x 1 7.0 1.5 0.0 91.5|UUU> | x
x 2 1.0 0.0 0.0 99.0|> | x
x 3 0.0 100.0 0.0 0.0|sssssssssssssssssssssssssssssssssssssssssssssssss> x
xSystem Average +-----------|------------|-----------|------------+ x
xAll 4.1 25.8 0.0 70.1|UUssssssssssss> | x
x +-----------|------------|-----------|------------+作者: oceanwell 时间: 2011-12-24 16:19 回复 2#szyszy2000
topas:
CPU User% Kern% Wait% Idle% Reads 8 Rawin 0
ALL 4.5 25.8 0.0 69.8
LR:
max avg
System mode CPU Utilization (Unix Kernel Statistics) 100 79.495
CPU Utilization (Unix Kernel Statistics) 100 80.954
nomon:
CPU-Utilisation-Small-View qqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqx
x 0----------25-----------50----------75----------100 x
xCPU User% Sys% Wait% Idle%| | | | | x
x 0 0.0 100.0 0.0 0.0|sssssssssssssssssssssssssssssssssssssssssssssssss> x
x 1 0.5 0.0 0.0 99.5|> | x
x 2 10.0 10.5 1.0 78.5|UUUUUsssss> | x
x 3 10.0 1.0 0.0 89.0|UUUUU > | x
xSystem Average +-----------|------------|-----------|------------+ x
xAll 5.1 27.9 0.2 66.8|UUsssssssssssss> | x
x +-----------|------------|-----------|------------+作者: oceanwell 时间: 2011-12-26 16:18
问题已解决，LR 上监听的是某一个CPU内核的CPU使用率，如nmon监听到的结果，当中有四个CPU内核，关注下面的Average即可。真实的平均值只有27.9.
LR的监听挺误导人的。。。不知道可不可以设置。
