Re: Measuring and improving Forrest build times

[Ross Gardler <rg...@apache.org>]

Ron Blaschke wrote:
> Thursday, August 18, 2005, 5:58:54 PM, David Crossley wrote:
> 
>>Ross Gardler wrote:
>>
>>>David Crossley wrote:
>>>
>>>>Ron Blaschke wrote:
> 
> 
>>>Thought for the future when this is sorted out. Can we create a new test
>>>target that will do this profiling for us?
> 
> 
>>>That way, each time we upgrade a dependency we can see if it impacts 
>>>performance.
> 
> 
>>Yep i wondered that too. We can take it a step further
>>and have it running on our zone and save a set of daily
>>logfiles. Perhaps analyse them with Ron's script.
> 
> 
> The script is written in perl, and currently in no condition to show
> someone else. ;-)  If you think the script is helpful, I'll polish it
> a bit, so we can use it.
> 
> Currently, I guess there are three ways we can get numbers:
> 
> 1) CPU profile with a real profiler
>   Should give the most detailed results, but probably not useful for
>   daily use.  This is what I am currently working on.
> 
> 2) Cocoon profiler block
>   Judging from the demo page, this might be what we look for.

Your idea of creating a plugin to do this profiling is a good one. I've 
not looked at what is involved, but I like the idea.

> 3) "The script"
>   The numbers print by Cocoon, and used by my script, are probably
>   equal to the total times as output by the profiler block.
>   It's simple, and if we average a few runs probably quite effective.

4) Use an Open Source profiler that provides and XML output and create a 
plugin that way.

Ross