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From David Kerber <>
Subject Re: Performance Tuning Tomcat 7...
Date Sat, 12 Feb 2011 18:35:38 GMT
On 2/12/2011 1:27 PM, Tony Anecito wrote:
> Right now for most of my transactions I get less than 5 microseconds and around
> 1.2msec is spent on getting to and out of Tomcat and out of to/out of the client
> call.
> So people were saying look at better parsers or replacing whatever does the
> parsing.
> I am measuring round trip time at the client (before and after the jersey call)
> and getting to 1.47msec. At Tomcat it is less than 5microseconds at the
> beginning of the method the GET goes to the end of the method so the code is
> very fast.
> So I am thinking whatever parses the cmd and puts together the html response
> after the end of the method is where I should focus.
> The network goes over a 1Gb ethernet lan.

When you're looking at low- or sub-millisecond timing, you're going to 
need to look at your network router (if any), switch and wiring latency, 
as well as the raw throughput..


> Regards,
> -Tony
> ----- Original Message ----
> From: Mark Thomas<>
> To: Tomcat Users List<>
> Sent: Sat, February 12, 2011 11:18:18 AM
> Subject: Re: Performance Tuning Tomcat 7...
> On 12/02/2011 18:14, Tony Anecito wrote:
>> Is there any performance tuning that can be done to Tomcat 7 besides just the
>> standard jvm arguments?
> 95%+ of tuning will need to be done in the app rather than Tomcat. My
> recommendation is to get yourself a profiler and go from there.
> Mark

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