What's the exact error? If you're on Win32, the JVM might not be able to allocate a large enough continuous memory block due to libraries loaded at specific addresses.
In addition, 1024m is a big high, even for large projects.
Note that IntelliJ uses memory mapping for accessing the large index structures on disk.
Configuring a large heap might actually hurt performance, since full GC sweeps will take longer.
-tt
If you use the analysis features line Analyse->Inspect Code, memory is a problem. IDEA runs out of memory if I try to run too many inspections across my project. I have to limit the scope or limit what inspections I run. The inspections themselves are using some memory, plus the 1000s of items found take up memory.
These are the settings I am currently using for Maia EAP on Ubuntu 9.04. I recommend using the UseCompressedOoops as it helps cut down on memory usage by 30-40%. But you need to use JDK 6 update 16 or newer. I am using JDK 6 update 18 ea 4 (https://jdk6.dev.java.net/6uNea.html)
TarasT wrote: > > In addition, 1024m is a big high, even for large projects. > > Note that IntelliJ uses memory mapping for accessing the large index > structures on disk. > > Configuring a large heap might actually hurt performance, since full GC > sweeps will take longer. > > -tt >
If you use the analysis features line Analyse->Inspect Code, memory is a problem. IDEA runs out of memory if I try to run too many inspections across my project. I have to limit the scope or limit what inspections I run. The inspections themselves are using some memory, plus the 1000s of items found take up memory.
These are the settings I am currently using for Maia EAP on Ubuntu 9.04. I recommend using the UseCompressedOoops as it helps cut down on memory usage by 30-40%. But you need to use JDK 6 update 16 or newer. I am using JDK 6 update 18 ea 4 (https://jdk6.dev.java.net/6uNea.html)
What's the exact error?
If you're on Win32, the JVM might not be able to allocate a large enough continuous memory block due to libraries loaded at specific addresses.
In addition, 1024m is a big high, even for large projects.
Note that IntelliJ uses memory mapping for accessing the large index
structures on disk.
Configuring a large heap might actually hurt performance, since full GC
sweeps will take longer.
-tt
If you use the analysis features line Analyse->Inspect Code, memory is a problem. IDEA runs out of memory if I try to run too many inspections across my project. I have to limit the scope or limit what inspections I run. The inspections themselves are using some memory, plus the 1000s of items found take up memory.
These are the settings I am currently using for Maia EAP on Ubuntu 9.04. I recommend using the UseCompressedOoops as it helps cut down on memory usage by 30-40%. But you need to use JDK 6 update 16 or newer. I am using JDK 6 update 18 ea 4 (https://jdk6.dev.java.net/6uNea.html)
-Xms256m
-Xmx1292m
-XX:MaxPermSize=190m
-XX:+UseCompressedOops
Performance is super fast on quad core i7 workstation, esp. for IDEA features which fully utilize all the cores.
-Alex
Geez, sounds awesome!
I wish this JDK6 update were available on OsX...
I use -Xmx1024m on 10.6.2 and it works fine.
On 2009-11-12 09:29:09 +0900, Alex <no_reply@jetbrains.com> said:
Tried to enable UseCompressedOops but I just got an error telling me: "Unrecognized VM option '+UseCompressedOops'"
Are you sure that it is included in update 16? I am running JDK 1.6.0_17...
Edit: Never mind... Found out that this parameter only works in 64 bits JDK...
BTJ
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Original message URL: http://devnet.jetbrains.net/message/5286959#5286959