could you describe compressed object pointers and how implementation will reduce allocations from JVM heap?thx, Martin Gainty ______________________________________________ Verzicht und Vertraulichkeitanmerkung/Note de déni et de confidentialité Diese Nachricht ist vertraulich. Sollten Sie nicht der vorgesehene Empfaenger sein, so bitten wir hoeflich um eine Mitteilung. Jede unbefugte Weiterleitung oder Fertigung einer Kopie ist unzulaessig. Diese Nachricht dient lediglich dem Austausch von Informationen und entfaltet keine rechtliche Bindungswirkung. Aufgrund der leichten Manipulierbarkeit von E-Mails koennen wir keine Haftung fuer den Inhalt uebernehmen. Ce message est confidentiel et peut être privilégié. Si vous n'êtes pas le destinataire prévu, nous te demandons avec bonté que pour satisfaire informez l'expéditeur. N'importe quelle diffusion non autorisée ou la copie de ceci est interdite. Ce message sert à l'information seulement et n'aura pas n'importe quel effet légalement obligatoire. Étant donné que les email peuvent facilement être sujets à la manipulation, nous ne pouvons accepter aucune responsabilité pour le contenu fourni.
> From: chuck.caldar...@unisys.com > To: users@tomcat.apache.org > Date: Mon, 17 May 2010 08:17:06 -0500 > Subject: RE: MaxPermSize / Threads > > > From: André Warnier [mailto:a...@ice-sa.com] > > Subject: Re: MaxPermSize / Threads > > > > So, while I am not saying that there are not circumstances where a 2 GB > > Heap is justified, it is still a very high number, and maybe you should > > have a look at which application really needs so much space. > > Having an excessively large heap does not hurt, as long as it's not so large > compared to available RAM that it pushes the environment into paging. GC > times are not affected by the size of the heap, just the number of live > objects present in the heap. Being able to run the apps in a smaller heap > does allow you to deploy on a cost-reduced platform, but that's about all. > If the JVM is the sole application on the box, you might as well give it as > much RAM as you've got (unless you want to run with compressed object > pointers). > > - 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 > _________________________________________________________________ The New Busy is not the too busy. Combine all your e-mail accounts with Hotmail. http://www.windowslive.com/campaign/thenewbusy?tile=multiaccount&ocid=PID28326::T:WLMTAGL:ON:WL:en-US:WM_HMP:042010_4
