问题
I'm trying to speed up Eclipse by having my projects on a RAM disk (stuck with a slow laptop and a heavy kind of eclipse project at the moment). Worked great for loading the project and such, but when I'm building it seems to read and write a lot to a directory in %APPDATA% (seems to have a generated name from the name of the project). This makes it actually go slower than usual...
So... is there a way I can move the tmp directory of eclipse? Preferably without moving the tmp directory of other applications in the process.
回答1:
May have found a way by setting a property called java.io.tmpdir in eclipse.ini. Seems to have changed where most of the read/write activity happens during build at least. For example:
-vmargs
-Xms128m
-Xmx1024m
-XX:MaxPermSize=256M
-Djava.io.tmpdir=E:\tmp
Not sure if it have to be after the -vmargs thing or not, but this seems to work anyways.
回答2:
It can be done by Djava.io.tmpdir property
->On root directory of your project right click as select run or debug as then in:
In Run/Debug Configuration of your project
->Run configuration
->Arguments-->
In VM Arguments
write the complete path of your temp directory
example: if you want to select a folder JAVAtmp in F drive then pass the VM arguments as :
-Djava.io.tmpdir=F:\JAVATmp
来源：https://stackoverflow.com/questions/10328944/possible-to-move-the-tmp-directory-of-eclipse