Performance 使用SystemTap计算CPU利用率
我想使用SystemTap获得CPU利用率(Performance 使用SystemTap计算CPU利用率,performance,profiling,cpu,systemtap,utilization,Performance,Profiling,Cpu,Systemtap,Utilization,我想使用SystemTap获得CPU利用率(%us,%sy,%id,%wa)。我编写了一个脚本,它使用timer.profile探测并计算处理器时钟: #! /usr/bin/env stap probe timer.profile { # probe perf.sw.cpu_clock { if (!user_mode()) { if (pid() == 0) { iticks <<< 1 } else { kticks <
%us
,%sy
,%id
,%wa
)。我编写了一个脚本,它使用timer.profile
探测并计算处理器时钟:
#! /usr/bin/env stap
probe timer.profile {
# probe perf.sw.cpu_clock {
if (!user_mode()) {
if (pid() == 0) {
iticks <<< 1
} else {
kticks <<< 1
}
} else {
uticks <<< 1
}
ticks <<< 1
}
global uticks, kticks, ticks, iticks
probe timer.s(1), end {
allticks = @count(ticks)
# printf("us: %d, sy: %d, id: %d, tot: %d\n",
# @count(uticks), @count(kticks), @count(iticks), allticks);
printf("us: %d, sy: %d, id: %d\n",
@count(uticks)*100/allticks,
@count(kticks)*100/allticks,
@count(iticks)*100/allticks);
delete uticks
delete kticks
delete iticks
delete ticks
}
#/usr/bin/env stap
探针定时器配置文件{
#探测器性能软件cpu\U时钟{
如果(!user_mode()){
如果(pid()==0){
它