Intellij idea堆大小无法更改 [英] Intellij idea Heap size can not be changed
问题描述
总有一天，我运行了一些巨大的操作，然后弹出一个窗口，提示堆内存不足，我在该窗口中将其设置为2014M，然后单击继续".一切都很好.
Someday, I run something huge, and a window pop up said that heap memory out of memory, I set it to 2014M in that window, then click continue. Everything was fine.
但是我不喜欢数字2014，我希望它是2048.所以，我更改了idea64.exe.vmoptions中的-Xmx选项(如下所示)并重新启动了想法. (根据此 doc )，但是，什么都没有改变，堆大小仍为2014M.
But I don't like the number 2014, I want it 2048. So, I changed -Xmx option in idea64.exe.vmoptions (like below) and restarted idea. (According to this doc) However, nothing was changed, heap size was still 2014M.
-Xms512m
-Xmx2048m
-XX:ReservedCodeCacheSize=240m
-XX:+UseConcMarkSweepGC
-XX:SoftRefLRUPolicyMSPerMB=50
-ea
-Dsun.io.useCanonCaches=false
-Djava.net.preferIPv4Stack=true
-XX:+HeapDumpOnOutOfMemoryError
-XX:-OmitStackTraceInFastThrow
然后，我更改了所有可以找到的idea64.exe.vmoptions，然后重新启动，但仍然失败.
Then, I changed all idea64.exe.vmoptions I could find, and restarted, and still failed.
操作系统:Windows 10 64位
想法版本:2018.1
OS: windows 10 64-bit
idea version: 2018.1
如何将堆大小更改为2048M?
How can I change the heap size to 2048M ?
请帮助，谢谢.
那天，我正在调试一些可以加密一些大对象的代码，并且在我使用copy value函数之后就显示了弹出窗口.
That day, I was debugging with some codes which encrypt some huge objects, and the popup showed just after I use copy value function.
我试图将IntelliJ Idea的JVM的堆大小更改为正式文档，但不起作用.
I tried to change the heap size of IntelliJ Idea's JVM as the official document, but not working.
堆内存统计信息在这里:
The heap memory statistic is here:
日志:
2018-07-23 09:54:04,184 [ 224] INFO - #com.intellij.idea.Main - JVM Args: -Xms512m -Xmx2048m -XX:ReservedCodeCacheSize=240m -XX:+UseConcMarkSweepGC -XX:SoftRefLRUPolicyMSPerMB=50 -ea -Dsun.io.useCanonCaches=false -Djava.net.preferIPv4Stack=true -XX:+HeapDumpOnOutOfMemoryError -XX:-OmitStackTraceInFastThrow -Djb.vmOptionsFile=C:\Users\huayu\.IntelliJIdea2018.1\config\idea64.exe.vmoptions -Didea.jre.check=true -Dide.native.launcher=true -Didea.paths.selector=IntelliJIdea2018.1 -XX:ErrorFile=C:\Users\huayu\java_error_in_idea_%p.log -XX:HeapDumpPath=C:\Users\huayu\java_error_in_idea.hprof
推荐答案
较新版本的IDEA对vm选项使用不同的文件.旧版本曾经使用C:\ Program Files \ JetBrains \ IntelliJ IDEA {version} \ bin \ idea64.exe.vmoptions，但现在这些配置存在于C:\ Users {user} .IntelliJIdea {version} \ config \ idea64.exe中.vmoptions.
Newer versions of IDEA use a different file for vm options. Older versions used to use C:\Program Files\JetBrains\IntelliJ IDEA {version}\bin\idea64.exe.vmoptions but now these configurations exist in C:\Users{user}.IntelliJIdea{version}\config\idea64.exe.vmoptions.
您可以从IntelliJ转到此文件. 在帮助"菜单上，单击编辑自定义VM选项".然后重新启动IDEA，它应该会更新.
You can get to this file from IntelliJ. On the Help menu, click Edit Custom VM Options. Then restart IDEA and it should update.
注意:右下角显示的值似乎与您在配置文件中指定的值完全不匹配.不知道为什么.
Note: It doesn't look like the value displayed in the bottom right will exactly match what you specify in the config file. Not sure why.
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