Hello André Warnier, Thanks for your response.
>That should be much easier and quicker to check this by yourself, as you >obviously already have the 2 Tomcat versions up and running. >Remove your own application, deploy one of the standard Tomcat-examples >applications, and have a look. Yes, we have done the above suggested exercise. And got the below output of top command result. Development environment: =========================== RAM: 25 GB CPU: CPU Intel(R) Xeon(R) CPU X5450 @ 3.00GHz OS: RHEL Linux (5.8) ========================== Tomcat 6(6.0.28) Virtual Memory: 6772 MB Resident Memory: 81 MB Tomcat 7(7.0.54) Virtual Memory: 6778 MB Resident Memory: 148 MB >If there is still a big difference between v6 and v7, then come back here. At >least then there will be a reproducible test case for someone here to have a >closer look. >And if there is not a big difference, then obviously it must have something to >with your application. And then, follow Mark's already-given advice to find >out what. The initial value is also somewhere double of tomcat6. Regards, Rahul Kumar Singh -----Original Message----- From: André Warnier [mailto:a...@ice-sa.com] Sent: Monday, March 23, 2015 2:32 PM To: Tomcat Users List Subject: Re: Tomcat 7 (7.0.54) memory consuption is very high(3 times) than Tomcat 6 (6.0.28) Rahul Kumar Singh wrote: > Dear Thomas, > > Thanks for your quick response, > > > >> Tomcat doesn't use anything like that much memory on its own. I suspect it >> is the application although the difference between Tomcat 6 and Tomcat 7 is >> unexpected. > > > > Ok, I understand, > > But could you please confirm us theoretically that is there any difference in > initial memory requirement of tomcat6 and tomcat 7? > > That should be much easier and quicker to check this by yourself, as you obviously already have the 2 Tomcat versions up and running. Remove your own application, deploy one of the standard Tomcat-examples applications, and have a look. If there is still a big difference between v6 and v7, then come back here. At least then there will be a reproducible test case for someone here to have a closer look. And if there is not a big difference, then obviously it must have something to with your application. And then, follow Mark's already-given advice to find out what. --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org DISCLAIMER: ----------------------------------------------------------------------------------------------------------------------- The contents of this e-mail and any attachment(s) are confidential and intended for the named recipient(s) only. It shall not attach any liability on the originator or NEC or its affiliates. Any views or opinions presented in this email are solely those of the author and may not necessarily reflect the opinions of NEC or its affiliates. Any form of reproduction, dissemination, copying, disclosure, modification, distribution and / or publication of this message without the prior written consent of the author of this e-mail is strictly prohibited. If you have received this email in error please delete it and notify the sender immediately. . ----------------------------------------------------------------------------------------------------------------------- --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
