Performance degrades on tomcat7 for the same runs of a sample performance 60 user test

2015-11-02 Thread dimple ranka
Hi all, I am doing some performance data collection on tomcat7 on a 8 processor high end machine with CentOS release 6.7 (Final) operating system and i am observing slowness with subsequent runs of the same jmeter test. Here are the version and specfication details followed by the endpoint source

Newbie tomcat 8.0.28 question

2015-11-02 Thread Linux Support
greetings all, Running CentOS 6.4. Configured the /opt/tomcat-latest to be owned by a system user(tomcat8) other than root. Planning of keeping the tomcat instance running as a non-root owned process. How can i get another non-privileged linux user deploy apps to the environment ? I can allow m

Re: Monitoring Connections

2015-11-02 Thread Aurélien Terrestris
Either my reply was not read, or I'm surprised nobody is answering here. "1. Java doesn't directly support SNMP;" It does, officially : http://docs.oracle.com/javase/7/docs/technotes/guides/ management/snmp.html and it's working pretty well with Tomcat besides being easy to set up. "2. If the

Re: [OT] RE: 80ms delay switching between worker threads

2015-11-02 Thread David kerber
On 11/2/2015 3:09 PM, Farzad Panahi wrote: Quoting from David Holme's blog: The nanoTime method uses the highest resolution clock available on the platform, and while its return value is in nanoseconds, the update resolution is typically only microseconds. https://blogs.oracle.com/dholmes/en

Re: [OT] RE: 80ms delay switching between worker threads

2015-11-02 Thread Farzad Panahi
Quoting from David Holme's blog: > The nanoTime method uses the highest resolution clock available on the > platform, and while its return value is in nanoseconds, the update resolution > is typically only microseconds. https://blogs.oracle.com/dholmes/entry/inside_the_hotspot_vm_clocks I think

Re: 80ms delay switching between worker threads

2015-11-02 Thread Christopher Schultz
Farzad, On 10/31/15 2:11 AM, Farzad Panahi wrote: > Hi Chris - I am using a linux instance on amazon cloud. You may be seeing either of the following: 1. Loss of real-time clock resolution due to virtualization (or support from the host OS) 2. Delays imposed on your instance by the hypervisor

Re: [OT] RE: 80ms delay switching between worker threads

2015-11-02 Thread David kerber
On 10/31/2015 10:51 AM, David Balažic wrote: Just a note: When most of you say "resolution" what you think about is actually called "accuracy". (also see "precision" , here is a good roundup: http://www.tutelman.com/golf/measure/precision.php ) I'm not sure about the others, but as an Electri