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blog名称:邢红瑞的blog
日志总数:523
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建立时间:2004年12月20日 |
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 [jvm]JVM - Could not reserve enough space for object heap的解决
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邢红瑞 发表于 2010/1/26 17:02:38 |
| 程序启动时，出现Error occurred during initialization of VMCould not reserve enough space for object heapCould not create the Java virtual machine.以前在solaris遇到过swap空间不够，#mkfile 500m /opt/myswap#swap -a /opt/myswap讲/opt/myswap加入/etc/vfstablinux上32-bit JVM 只能访问2G的内存空间，减少-mmx的值就行了，如果在windows上使用jrockit，可以使用3G空间，public class MemLoadTester { public static void main ( String[] args ) {
long rand; char cr; char[] cra = new char[2048];
for ( int i=0; i<2048; i++) { rand = 70 + Math.round( Math.random() * 50); cr = (char) rand; cra[i] = cr; }
int entities = 800000; int blocksize = 10240;
String[] zz = new String[ entities];
// Java char type is 2bytes. System.out.println (" Each box indicates the creation of ~40Meg");
for ( int j=0; j<entities; j++ ) { zz[j] = new String( cra ); if (j != 0 && j % blocksize == 0 ) { System.out.print ( "#" ); }
if (j != 0 && j % (blocksize * 10) == 0 ) { System.out.println ( "" );
}
}
System.out.println( "\n");
} System.out.println ( " Success ");} |
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