Performance measurements

[Tara Hernandez]

Note that there's the standard problem with performance testing which is 
the act of measuring can affect the results.   If you want to do some 
really good benchmarking, measure from a different machine on the same 
subnet (to reduce network lag issues).

My $0.02

-Tara

Bradley Baetz wrote:

>On Wed, 23 Oct 2002, Gervase Markham wrote:
>
>  
>
>>Can people please share with the list the tools they use to measure 
>>Bugzilla performance? For example, does MySQL have a way to time a 
>>query? 
>>    
>>
>
>When you run teh query from mysql it shows the time taken at the end :)
>
>I have a script to generate n bugs; I'll tidy it up and attach it this 
>evening.
>
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>>How do you time the execution of a CGI script in a webserver? 
>>    
>>
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>The best way is to  time it from teh cmd line, redirecting to /dev/null, 
>so:
>
>time REQUEST_METHOD=GET QUERY_STRING="foo=bar&bar=1" perl -wT foo.cgi > /dev/null
>
>  
>
>>What's the Perl profiler called, if there is one, and where can I find 
>>out about it?
>>    
>>
>
>perldoc DProf.
>
>dprofpp -S is often useful
>
>Note that occasionally running with -d:DProf segfaults on me; running it
>again fixes it. Thats a perl bug which I haven't managed to track 
>down/report/etc.
>
>  
>
>>That sort of stuff... :-)
>>
>>Gerv
>>    
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>
>Bradley
>
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