Linux上的基准测试程序 [英] Benchmarking programs on Linux

问题描述

对于一项分配，我们需要使用不同的优化和参数来对我们的实现进行基准测试.有没有一种可行的方法可以用不同的参数对Linux命令行(我知道时间)上的小程序进行基准测试，从而为我提供时间数据为CSV或类似的数据?输出可能是这样的:

for an assignment we need to benchmark our implementations with different optimizations and parameters. Is there a feasible way of benchmarking little programs on the linux command line (I know of time) with different parameters which gives me the time data as CSV or something similiar? Output could be something like:

Implementation      Time     
A                    23s
B with -O3 2Threads  15s 
B with -O3 4Threads  10s 

我很确定我已经在一些教授的幻灯片上看到过类似的东西，但是我不记得是谁或什么时候...

I'm pretty sure that I've seen something like that on some professors slides but I cant remember who or when it was...

推荐答案

为什么不在bash脚本中使用time命令，例如:

Why not using time command inside a bash script, something like :

#!/bin/bash

NPROG=`cat proglist | wc -l`
for i in `seq 1 ${NPROG}`
do
    PROG=`sed -n "${i}p" proglist`
    ARG=`sed -n "${i}p" arglist`
    TIME=`{ time ${PROG} ${ARG}; } 2>&1 | grep real | awk '{print $2}'`
    echo "${TIME} ${PROG} ${ARG}"
done

其中proglist是一个文本文件，其中包含要执行的程序

where proglist is a text file containing the programs to execute

A
B
B

和arglist是一个包含参数的文本文件，例如:

and arglist is a text file containing the arguments, something like :

-a 1 -b 2
-f "foo"
-f "bar"

脚本的输出将类似于:

 0m32.000s A -a 1 -b 2
 1m12.000s B -f "foo"
 5m38.000s B -f "bar"

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