> On 29 Aug 2017, at 14:24, Mark Thomas <ma...@apache.org> wrote:
> On 29/08/17 13:09, Ing. Andrea Vettori wrote:
>>> On 29 Aug 2017, at 12:29, Suvendu Sekhar Mondal <suv3...@gmail.com> wrote:
>>> On Tue, Aug 29, 2017 at 2:54 PM, Ing. Andrea Vettori
>>> <a.vett...@b2bires.com> wrote:
>>>> - with a fresh started tomcat instance, the time it takes is around 0,8 
>>>> seconds. Most of the time is spent on the two RMI calls the task does.
>>>> - with an instance that is running from some time, the time can reach 2/3 
>>>> seconds; occasionally 5/6 seconds. Most time is still spent on RMI calls. 
>>>> I.e. what slows down are the RMI calls.
>>> Sill question, do you mean RMI calls generating from Tomcat is getting
>>> slower with time? or, JBoss is taking time to return the response?
>> Thanks for your help.
>> What I see is that the http requests are slower. Looking at the details of 
>> that specific request (putting a product in the cart) using System.nanotime 
>> I can see that most of the time is spent during the RMI calls. I’m pretty 
>> sure it’s not jboss that is slower because doing other calls at the same 
>> time with fresh tomcats or with a java client they're not slow.
> I'd try profiling the problematic code. Given the magnitude of the
> times, sampling should be sufficient which means you could do this on
> production when the problem happens. You'll probably need to configure
> it to log JVM internal calls.
> I use YourKit (because they give me a free license to use to develop
> Tomcat). Other profilers are available.
> Mark

Thank you, I’m going to try this soon and report back what I find.
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