Add a comment

 

Re: JVM Lies: The OutOfMemory Myth

Oh yeah sorry forgot, for those running servers on windows ( ?why? ) you can change the split see http://technet.microsoft.com/en-us/library/bb124810.aspx However changing the split is not always a good thing as the kernel has less of its own space to work with. Also on some unix's (linux springs to mind) it is possible to have a configuration known as a 4GB/4GB split (often called hugemem by redhat), however this does come with overheads in memory lookups because technically under the hood some things wind up being bounce buffers and what not ... Another thing that is worthwhile looking into if you have a big heap is to use largepages / hugepages (whatever your OS calls them), these are the large page size option for your CPU (typically 2Mb / 4MB for x86), these massivly reduce the amount of work the OS has to do when dealing with big memory segments ..

Re: JVM Lies: The OutOfMemory Myth


Title
Body
HTML : b, strong, i, em, blockquote, br, p, pre, a href="", ul, ol, li, sub, sup
Name
E-mail address
Website
Remember me Yes  No 

E-mail addresses are not publicly displayed, so please only leave your e-mail address if you would like to be notified when new comments are added to this blog entry (you can opt-out later).