Re: Measure time spent in each target of a Makefile

[Eric Melski]

On 08/08/2011 09:29 AM, Matthias Puech wrote:
> Dear Greg,
>
> Thank you for your quick reply. I am sorry, my question was not clear
> enough. I am aware of the SHELL trick but it doesn't quite fit my needs.
> I need to be able to know the time taken by each *target*, not just the
> commands launched. For example if I have:

ElectricMake (emake) can do this for you.  emake is a drop-in 
replacement for gmake (3.80 and 3.81) that can generate an XML annotated 
version of the build output log, including information like time spent 
on each target.  Here's a snippet of such a log:

<job id="J09629460" thread="f56b1b70" type="rule" name="foo.o" 
file="Makefile" line="3" neededby="J09629490">
<command line="4">
<argv>echo foo.o</argv>
<output src="prog">foo.o
</output>
</command>
<command line="5">
<argv>touch foo.o</argv>
</command>
<timing invoked="0.604963" completed="0.651096" node="linbuild2-1"/>
</job>

The target name is given as the name attribute of the <job> tag; the 
timing information is given in the <timing> tag.

You can get a free evaluation copy here:

http://www.electric-cloud.com/products/eval-electricaccelerator-dev.php?s=make-help

And there's more information about the product here:

http://www.electric-cloud.com/products/electricaccelerator-dev.php

br,

Eric Melski
Architect, ElectricAccelerator
Electric Cloud, Inc.