[rt-users] RT response time

[Matthew Seaman]

Matthew Seaman wrote:
> Raed El-Hames wrote:
> 
>> Versions 3.6.4 and 3.8.5
>> apache2,mod_perl2 and mysql5
>>
>> Have anyone done any kind of monitoring / profiling of RT response 
>> time, ie measure the time it takes to display a ticket / (or create a 
>> ticket but possibly doing this every 5/10 minutes wont be desirable)
>> Can anyone recommend any software (preferably open source) that can do 
>> that?
> 
> If you modify the apache log format, you can get it to include the amount
> of time it spends to serve each page.  Something like this:
> 
> LogFormat "%h %l %u %t \"%r\" %>s %b \"%{Referer}i\" \"%{User-Agent}i\" %D"
> 
> (See http://httpd.apache.org/docs/2.2/mod/mod_log_config.html)
> 
> %D is the time in microseconds it takes to serve the request.  There's also
> %T, but that's measured in integer numbers of seconds, so it's almost 
> always
> 0 for any reasonably good web-server.  %D is to some extent determined by
> how fast the web clients can receive the data, but this should not be 
> rate limiting unless you have particularly old and slow client machines 
> or people accessing the site through dial-up connections.
> 
> AFAIK most weblog analysis software doesn't deal with the time taken to 
> serve
> a request, because that data isn't included in the standard log file 
> formats.
> However, writing a small perl script to calculate statistics for each of 
> the different queries (%r in the format) should be fairly trivial to do.
> 

Another approach is to use the Firebug extension to Firefox -- this
gives you a detailed breakdown of the time it takes to display a web
page (including all of the sub-requests for images etc.)

 http://getfirebug.com/

Only shows you timings for one page at a time though, and needs to be
run interactively.

	Cheers,

	Matthew

-- 
Dr Matthew Seaman                     The Bunker, Ash Radar Station
PGP: 0x60AE908C on servers            Marshborough Rd
Tel: +44 1304 814890                  Sandwich
Fax: +44 1304 814899                  Kent, CT13 0PL, UK

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