?Which performance issue
2011/2/28 Bruce Pease <bpe...@wth.com> > Thanks for the insight. It looks like we are going to go with server 2003 > 32 > bit. I found some references that suggest ajp 1.3 has a performance issue > in > 64 bit server 2008. > > -----Original Message----- > From: Tony Anecito [mailto:adanec...@yahoo.com] > Sent: Monday, February 28, 2011 3:01 PM > To: Tomcat Users List > Subject: Re: IIS7/isapi/tomcat performance > > I forgot to mention new versions of Windows are slower than XP. So that > would > > contribute to your issues. Windows 7 got better but not as fast as 32-bit. > > Also, you might want to measure from tomcat perspective so you have a new > baseline. > > Regards, > -Tony > > > > ----- Original Message ---- > From: Tony Anecito <adanec...@yahoo.com> > To: Tomcat Users List <users@tomcat.apache.org> > Sent: Mon, February 28, 2011 12:57:03 PM > Subject: Re: IIS7/isapi/tomcat performance > > Since the memory pointers are larger you may need to increase your heap > size > but > > you can compress the address pointers. > > Also, if you use JNI and it is 32-bit then you will have unexpected issues > same > thing with any native libs your try to use. > > Generally it will be up to 20% slower due to the pointers. > > Recommend you stick to 32-bit if your app fits within the memory space for > 32-bit. I have heard that 64-bit jvm for version 7 might be faster than > 32-bit. > > Good Luck, > -Tony > > > > ----- Original Message ---- > From: Tony Anecito <adanec...@yahoo.com> > To: Tomcat Users List <users@tomcat.apache.org> > Sent: Mon, February 28, 2011 12:40:43 PM > Subject: Re: IIS7/isapi/tomcat performance > > JVM settings should not be the same. > > Regards, > -Tony > > > > ----- Original Message ---- > From: Bruce Pease <bpe...@wth.com> > To: Tomcat Users List <users@tomcat.apache.org> > Sent: Mon, February 28, 2011 11:46:35 AM > Subject: RE: IIS7/isapi/tomcat performance > > Perhaps my point is being missed here. The issue is moving from 32 bit is > slower in 64 bit (4-500% if you need a number). Components are the same, > setup is the same, database is the same, environment is the same, tests are > the same, network is the same. I'm basically looking to see if anyone is > using a similar setup, and has been able to get it to perform well. > > -----Original Message----- > From: Tony Anecito [mailto:adanec...@yahoo.com] > Sent: Monday, February 28, 2011 1:40 PM > To: Tomcat Users List > Subject: Re: IIS7/isapi/tomcat performance > > I agree with Charles. I run a performance Testing group for a fortune 50 > company > and do alot of performance testing for different designs/implementation for > my > own startup and we can not help you without further info. > > Client side setup (Browser/version?) > Test cases > Network speed > Tomcat Setup (startup command line with jdk options) > Extending logging options such as request time for tomcat > Make sure your logging is set to error and not debug level on your > processes > (IIS, Tomcat, Database?) > > I would use yslow with FF to get page sizes and other info. developers seem > to > forget that the bandwidth is limited and 1MB pages are too big. Sometimes > images > are small but the javascript is quite big especially when calling web > services > directly, > For the middle tier a code profiler like visualvm helps quite a bit. > > The key thing is narrow it down tier by tier then focus on the tier where > you > > see the biggest gains. > If manually you see x seconds then that is the best it will be before you > start > tuning. > Gains in code will always be larger than that by configuration tuning > unless > logging level is set to high especially for jdbc calls. > > Good luck, > Tony Anecito (JavaOne 2010 "I am the future of Java winner") > Founder, > MyUniPortal (JavaOne 2010 "Duke's Award Winner") > http://www.myuniportal.com > > > > > > ----- Original Message ---- > From: "Caldarale, Charles R" <chuck.caldar...@unisys.com> > To: Tomcat Users List <users@tomcat.apache.org> > Sent: Mon, February 28, 2011 11:15:40 AM > Subject: RE: IIS7/isapi/tomcat performance > > > From: Bruce Pease [mailto:bpe...@wth.com] > > Subject: IIS7/isapi/tomcat performance > > > In performance tests I have found the configuration runs > > dramatically slower than it's corresponding server in 32 > > bit Windows on 2000 Server and Tomcat 6. > > Until you quantify "dramatically", better describe your testing scenario > (including configurations of all components), eliminate as many moving > pieces > as > you can (e.g., try Tomcat standalone), and do some basic bottleneck > analysis, > > there's not much anyone can help you with. > > - Chuck > > > THIS COMMUNICATION MAY CONTAIN CONFIDENTIAL AND/OR OTHERWISE PROPRIETARY > MATERIAL and is thus for use only by the intended recipient. If you > received > this in error, please contact the sender and delete the e-mail and its > attachments from all computers. > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org > For additional commands, e-mail: users-h...@tomcat.apache.org > > > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org > For additional commands, e-mail: users-h...@tomcat.apache.org > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org > For additional commands, e-mail: users-h...@tomcat.apache.org > > > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org > For additional commands, e-mail: users-h...@tomcat.apache.org > > > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org > For additional commands, e-mail: users-h...@tomcat.apache.org > > > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org > For additional commands, e-mail: users-h...@tomcat.apache.org > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org > For additional commands, e-mail: users-h...@tomcat.apache.org > >
