怎么可以简单测试一下VPS的CPU性能？

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UnixBench有点太耽误时间，出的数据也不够直观

想要一个简单的脚本，例如循环计算PI，这样的，能简单测试一下CPU性能，最好执行个3,5秒给我个数就完了，有没有这样现成的脚本可用？

CPU

简单

测试

4 replies • 2020-06-09 12:52:59 +08:00

RisingV

Feb 5, 2013

#!/bin/bash

CONCURRENCY=8
TIME_START=`date`
for ((idx = 0; idx < $CONCURRENCY; idx++))
do
time echo "scale=5000; a(1)*4" | bc -l > /dev/null &
done

echo "$TIME_START Start"

RUNNING_PROCESS_NUM=1
while [ $RUNNING_PROCESS_NUM -gt 0 ]
do
printf ".";
sleep 1
RUNNING_PROCESS_NUM=$(ps ax | grep ' bc -l' | grep -v 'grep' | wc -l)
done

TIME_STOP=`date`

echo "$TIME_STOP Stop"

RisingV

Feb 5, 2013

本地输出：
2013年02月05日星期二 10:15:58 Start
.................................................................................................................................................
real 2m43.940s
user 0m37.825s
sys 0m0.241s

real 2m44.163s
user 0m37.903s
sys 0m0.229s

real 2m44.282s
user 0m37.896s
sys 0m0.209s

real 2m44.291s
user 0m37.831s
sys 0m0.241s

real 2m44.291s
user 0m37.919s
sys 0m0.212s

real 2m44.303s
user 0m37.895s
sys 0m0.216s

real 2m44.325s
user 0m37.946s
sys 0m0.188s

real 2m44.386s
user 0m37.901s
sys 0m0.240s
2013年02月05日星期二 10:18:42 Stop

RisingV

Feb 5, 2013

CONCURRENCY=8 是并发进程数，最好有个基准作测试，两台机子比较一下才能从数据上看出意义

zeruns

Jun 9, 2020

看这篇文章，整理了一些测试 VPS 性能的脚本： https://blog.zeruns.tech/archives/533.html