I'll take a look at thos products. I wasn't aware of your other suggestion. I assume you mean it will improve the performance when debugging is turned off thus preventing the debug statement from being called at all. Is this because there is a lot of overhead with debug(...) calls even with debugging off?
This will be fun, I've got a LOT of debug calls to change. 8(
Thanks, Jim.
Shapira, Yoav wrote:
Howdy, I would use JMeter first, if you're just looking for performance numbers, i.e. time to serve that page. JMeter is ideally suited for that. JProbe and OptimizeIt are great, but they do more than you need in this case and they WILL skew performance significantly.
As an aside, make sure you have all log4j Logger#debug statements enclosed in if(logger.isDebugEnabled()) { ... } clauses -- that's an order of magnitude or so runtime performance improvement.
Yoav Shapira Millennium ChemInformatics
-----Original Message----- From: Justin Brister [mailto:[EMAIL PROTECTED] Sent: Thursday, December 04, 2003 8:44 AM To: 'Tomcat Users List' Subject: RE: How to measue performance? Log4j on/off.
Jim,
if you have any money to spend, it would be worth running a code
profiler
such as JProbe over the code. If you don't have access to such a tool / money, then you could try running JMeter to benchmark the site.
J
-----Original Message----- From: Jim Lynch [mailto:[EMAIL PROTECTED] Sent: Thursday, December 04, 2003 1:40 PM To: Tomcat Users List Subject: How to measue performance? Log4j on/off.
We have a performance issue with a web page being served via Tomcat/Apache. I don't think it has anything to do with Tomcat, but I am being asked to turn debug logging off to help improve it. I'm resisting because the output has been extremely valuable in solving problems that still crop up and to find out what the users are really doing as opposed to what they said they did.
That said, is there a definitive way I can compare the performance of the site before and after turning the logging off? Other than a stopwatch?
Thanks, Jim.
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