Here is another article to help make that decision: http://www.sumoc.com/blog/index.cfm?mode=entry&entry=CDCDBF8B-5004-2066-B7460CDEAB79328F
Sumit Verma Partner / Vice President | ten24, LLC office: 877.886.5806 x 103 | mobile: 617.290.8214 www.ten24web.com | www.linkedin.com/in/sverma On Wed, May 5, 2010 at 3:37 PM, <[email protected]> wrote: > Our Max Heap size is 1024 mb, we don't have a minimum setting specified. > I know how to change that in Administrator. > > Would it help if I set a minimum of maybe 768 mb heap size? > > > > > Bill Peddy > Web Developer > ECS Team - ITS-EPA II - > Contractor > voice: (919) 541-1329 > fax: (919) 541-3700 > > > > > > > |------------> > | From: | > |------------> > > > >---------------------------------------------------------------------------------------------------------------------------------------| > |"Hayes, Joseph D. (JSC-IS)[TESSADA & ASSOC INC]" < > [email protected]> > | > > >---------------------------------------------------------------------------------------------------------------------------------------| > |------------> > | To: | > |------------> > > > >---------------------------------------------------------------------------------------------------------------------------------------| > |"[email protected]" < > [email protected]> > | > > > >---------------------------------------------------------------------------------------------------------------------------------------| > |------------> > | Date: | > |------------> > > > >---------------------------------------------------------------------------------------------------------------------------------------| > |05/05/2010 03:29 PM > | > > >---------------------------------------------------------------------------------------------------------------------------------------| > |------------> > | Subject: | > |------------> > > > >---------------------------------------------------------------------------------------------------------------------------------------| > |RE: [Mach-II] Slow server > | > > > >---------------------------------------------------------------------------------------------------------------------------------------| > > > > > > You can do this through the Coldfusion Administrator; see the livedocs > for your particular version (or run a search on "ColdFusion JVM heap > size"). The livedocs also have tips on how to best adjust this value > (under-allocating and over-allocating can both create issues). > > -----Original Message----- > From: [email protected] [ > mailto:[email protected]] On Behalf Of > [email protected] > Sent: Wednesday, May 05, 2010 2:21 PM > To: [email protected] > Subject: Re: [Mach-II] Slow server > > I did look at our memory usage. > we have a total memory of 475 to 510 mb. This number seems to rise and > fall for reasons I don't understand. > I have seen our memory usage get up to the high 400's (above 480). > How do we increase our total memory. Our system administrator says we > have 4 gig of memory on our server. > > > > > Bill Peddy > Web Developer > ECS Team - ITS-EPA II - > Contractor > voice: (919) 541-1329 > fax: (919) 541-3700 > > > > > > > |------------> > | From: | > |------------> > > > >---------------------------------------------------------------------------------------------------------------------------------------| > > |"Peter J. Farrell" <[email protected]> > | > > > >---------------------------------------------------------------------------------------------------------------------------------------| > > |------------> > | To: | > |------------> > > > >---------------------------------------------------------------------------------------------------------------------------------------| > > |[email protected] > | > > > >---------------------------------------------------------------------------------------------------------------------------------------| > > |------------> > | Date: | > |------------> > > > >---------------------------------------------------------------------------------------------------------------------------------------| > > |05/05/2010 03:06 PM > | > > > >---------------------------------------------------------------------------------------------------------------------------------------| > > |------------> > | Subject: | > |------------> > > > >---------------------------------------------------------------------------------------------------------------------------------------| > > |Re: [Mach-II] Slow server > | > > > >---------------------------------------------------------------------------------------------------------------------------------------| > > > > > > > Have you checked your memory usage? Adding load / apps to a server can > cause subtle changes over time... > > Big grand pauses at the CFML engine at random are a signal that JVM is > having to run excessive garbage collections. Full GCs are a "stop the > world" event and therefore request will just pile up or pause until the > GC is complete. I wouldn't be surprised if this is the case. > > If you are running out of perm-gen space or even heap space, this could > be issue. I'd look at your CFML memory usage at the JVM level. You can > > see JVM memory details in Mach-II Dashboard or can write some ad-hoc > CFML code using Java to do that (look at the dashboard code if you need > examples). > > Bst, > .Peter > > [email protected] said the following on 05/05/10 13:50: > >>> So you're saying everything ran fine for years and the ONLY thing > you > >>> > > changed was the timeout requests setting? No, we've added many apps > > recently and of course changed some code in existing apps. We've > gotten > > application errors of course, but it's fairly rare for us to get time > > out errors. That's kind of the point. There have been many, many > > changes and we need something, some tool to point us in the right > > direction. Yes, we did enable the setting after the server slowed > down, > > because I read that Adobe recommends it (I've since unchecked this > > option). I'm going to check out all the things that Peter mentioned > > (thanks Peter) to see if I can narrow down the problem. Will keep > your > > suggestion in mind while researching the problem (I'd make sure > nothing > > else changed as far as server configuration, networking, databases,) > > > > > > Thanks Matt. > > > > ed > > > > ______________________________________________________________________ > > Ed Szwedo > > Web Development Team Lead > > ECS Team - ITS-EPA II Contractor > > > > 109 TW Alexander Drive, Building NCC, Mail Drop N176-05, Research > > Triangle Park, NC 27711 > > Information Technology Infrastructure Solutions | Office: > (919)541-3955 > > | Fax: (919)541-3641 | [email protected] | www.ecs-federal.com > > > > > > |------------> > > | From: | > > |------------> > > > > >----------------------------------------------------------------------------------------------------------------------------------| > > > > |Matthew Woodward<[email protected]> > | > > > > >----------------------------------------------------------------------------------------------------------------------------------| > > > > |------------> > > | To: | > > |------------> > > > > >----------------------------------------------------------------------------------------------------------------------------------| > > > > |[email protected] > | > > > > >----------------------------------------------------------------------------------------------------------------------------------| > > > > |------------> > > | Date: | > > |------------> > > > > >----------------------------------------------------------------------------------------------------------------------------------| > > > > |05/05/2010 02:38 PM > | > > > > >----------------------------------------------------------------------------------------------------------------------------------| > > > > |------------> > > | Subject: | > > |------------> > > > > >----------------------------------------------------------------------------------------------------------------------------------| > > > > |Re: [Mach-II] Slow server > | > > > > >----------------------------------------------------------------------------------------------------------------------------------| > > > > |------------> > > | Sent by: | > > |------------> > > > > >----------------------------------------------------------------------------------------------------------------------------------| > > > > |[email protected] > | > > > > >----------------------------------------------------------------------------------------------------------------------------------| > > > > > > > > > > > > > > On Wed, May 5, 2010 at 11:12 AM,<[email protected]> wrote: > > > > These are all apps that have been running successfully for years. > > > > > > So you're saying everything ran fine for years and the ONLY thing you > > changed was the timeout requests setting? And did you do that *after* > > you saw things running slowly? > > > > My rule of thumb, basic as it is, is if things were running fine and > now > > aren't, something changed. So before you burn too much time trying to > > figure out what's up with your app, I'd make sure nothing else changed > > as far as server configuration, networking, databases, etc. etc. goes. > > -- > > Matthew Woodward > > [email protected] > > http://blog.mattwoodward.com > > identi.ca/Twitter: @mpwoodward > > > > Please do not send me proprietary file formats such as Word, > PowerPoint, > > etc. as attachments. > > http://www.gnu.org/philosophy/no-word-attachments.html > > > > > > -- > > You received this message because you are subscribed to Mach-II for > CFML > > list. > > To post to this group, send email to > > [email protected] > > To unsubscribe from this group, send email to > > [email protected] > > For more options, visit this group at > > http://groups.google.com/group/mach-ii-for-coldfusion?hl=en > > > > ***New URLs as of April 29th, 2010*** > > SVN: http://svn.mach-ii.com/machii/ > > Wiki / Documentation / Tickets: http://trac.mach-ii.com/machii/ > > > > > > > > > > -- > You received this message because you are subscribed to Mach-II for CFML > list. > To post to this group, send email to > [email protected] > To unsubscribe from this group, send email to > [email protected] > For more options, visit this group at > http://groups.google.com/group/mach-ii-for-coldfusion?hl=en > > ***New URLs as of April 29th, 2010*** > SVN: http://svn.mach-ii.com/machii/ > Wiki / Documentation / Tickets: http://trac.mach-ii.com/machii/ > > > > -- > You received this message because you are subscribed to Mach-II for CFML > list. > To post to this group, send email to > [email protected] > To unsubscribe from this group, send email to > [email protected] > For more options, visit this group at > http://groups.google.com/group/mach-ii-for-coldfusion?hl=en > > ***New URLs as of April 29th, 2010*** > SVN: http://svn.mach-ii.com/machii/ > Wiki / Documentation / Tickets: http://trac.mach-ii.com/machii/ > > -- > You received this message because you are subscribed to Mach-II for CFML > list. > To post to this group, send email to > [email protected] > To unsubscribe from this group, send email to > [email protected] > For more options, visit this group at > http://groups.google.com/group/mach-ii-for-coldfusion?hl=en > > ***New URLs as of April 29th, 2010*** > SVN: http://svn.mach-ii.com/machii/ > Wiki / Documentation / Tickets: http://trac.mach-ii.com/machii/ > > > > -- > You received this message because you are subscribed to Mach-II for CFML > list. > To post to this group, send email to > [email protected] > To unsubscribe from this group, send email to > [email protected] > For more options, visit this group at > http://groups.google.com/group/mach-ii-for-coldfusion?hl=en > > ***New URLs as of April 29th, 2010*** > SVN: http://svn.mach-ii.com/machii/ > Wiki / Documentation / Tickets: http://trac.mach-ii.com/machii/ > -- You received this message because you are subscribed to Mach-II for CFML list. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/mach-ii-for-coldfusion?hl=en ***New URLs as of April 29th, 2010*** SVN: http://svn.mach-ii.com/machii/ Wiki / Documentation / Tickets: http://trac.mach-ii.com/machii/
