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          eclipse增加內存

          Posted on 2006-12-26 12:42 HandSoft 閱讀(1483) 評論(0)  編輯  收藏 所屬分類: 開源學習

          By default, Eclipse will allocate up to 256 megabytes of Java heap memory. This should be ample for all typical development tasks. However, depending on the JRE that you are running, the number of additional plug-ins you are using, and the number of files you will be working with, you could conceivably have to increase this amount. Eclipse allows you to pass arguments directly to the Java VM using the -vmargs command line argument, which must follow all other Eclipse specific arguments. Thus, to increase the available heap memory, you would typically use:

          eclipse -vmargs -Xmx<memory size>

          with the <memory size> value set to greater than "256M" (256 megabytes -- the default).

          When using a Sun VM, you may also need to increase the size of the permanent generation memory. The default maximum is 64 megabytes, but more may be needed depending on your plug-in configuration and use. The maximum permanent generation size is increased using the -XX:MaxPermSize=<memory size> argument:

          eclipse -vmargs -XX:MaxPermSize=<memory size>

          This argument may not be available for all VM versions and platforms; consult your VM documentation for more details.

          Note that setting memory sizes to be larger than the amount of available physical memory on your machine will cause Java to "thrash" as it copies objects back and forth to virtual memory, which will severely degrade your performance.

          在eclipse安裝根目錄下,用此命令:??? eclipse.exe -vmargs -Xms256M -Xmx512M

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