ページ更新: 2011-08-30 (火) (3437日前)
(2006-11-08 新規作成) [編集]-Xmx の最大値 (2011-08-30) #Microsoft Windows XP [Version 5.1.2600] (Windows XP Professional SP3) にて 1.6.0_27 Client VM: C:> "c:\Program Files\Java\jdk1.6.0_27\jre\bin\java.exe" -server -Xmx1420m -version java version "1.6.0_27" Java(TM) SE Runtime Environment (build 1.6.0_27-b07) Java HotSpot(TM) Server VM (build 20.2-b06, mixed mode) C:> "c:\Program Files\Java\jdk1.6.0_27\jre\bin\java.exe" -server -Xmx1421m -version Error occurred during initialization of VM Could not reserve enough space for object heap Could not create the Java virtual machine. 1.6.0_27 Server VM C:> "c:\Program Files\Java\jdk1.6.0_27\jre\bin\java.exe" -Xmx1406m -version java version "1.6.0_27" Java(TM) SE Runtime Environment (build 1.6.0_27-b07) Java HotSpot(TM) Client VM (build 20.2-b06, mixed mode) C:> "c:\Program Files\Java\jdk1.6.0_27\jre\bin\java.exe" -Xmx1407m -version Error occurred during initialization of VM Could not reserve enough space for object heap Could not create the Java virtual machine. Microsoft Windows [Version 6.1.7601] (Windows 7 Professional SP1 / x64) にて 1.6.0_27 Client VM: C:>"c:\Program Files (x86)\Java\jdk1.6.0_27\jre\bin\java.exe" -Xmx1588m -version java version "1.6.0_27" Java(TM) SE Runtime Environment (build 1.6.0_27-b07) Java HotSpot(TM) Client VM (build 20.2-b06, mixed mode) C:> "c:\Program Files (x86)\Java\jdk1.6.0_27\jre\bin\java.exe" -Xmx1589m -version Error occurred during initialization of VM Could not reserve enough space for object heap Could not create the Java virtual machine. 1.6.0_27 Server VM: C:> "c:\Program Files (x86)\Java\jdk1.6.0_27\jre\bin\java.exe" -server -Xmx1602m -version java version "1.6.0_27" Java(TM) SE Runtime Environment (build 1.6.0_27-b07) Java HotSpot(TM) Server VM (build 20.2-b06, mixed mode) C:> "c:\Program Files (x86)\Java\jdk1.6.0_27\jre\bin\java.exe" -server -Xmx1603m -version Error occurred during initialization of VM Could not reserve enough space for object heap Could not create the Java virtual machine.[編集] 環境変数 _JAVA_LAUNCHER_DEBUG (2006-11-08) #C:\> set _JAVA_LAUNCHER_DEBUG=1 J2SDK 1.4.2_12 C:\>c:\java\j2sdk1.4.2_12\bin\java ----_JAVA_LAUNCHER_DEBUG---- JRE path is c:\java\j2sdk1.4.2_12\jre jvm.cfg[0] = ->-client<- jvm.cfg[1] = ->-server<- jvm.cfg[2] = ->-hotspot<- name: -hotspot vmType: VM_ALIASED_TO alias: -client jvm.cfg[3] = ->-classic<- jvm.cfg[4] = ->-native<- jvm.cfg[5] = ->-green<- 11553 micro seconds to parse jvm.cfg JVM path is c:\java\j2sdk1.4.2_12\jre\bin\client\jvm.dll 291691 micro seconds to LoadJavaVM JavaVM args: version 0x00010002, ignoreUnrecognized is JNI_FALSE, nOptions is 2 option[ 0] = '-Djava.class.path=.' option[ 1] = '-Dsun.java.launcher=SUN_STANDARD' Usage: java [-options] class [args...] (to execute a class) or java [-options] -jar jarfile [args...] (to execute a jar file) where options include: : : JDK 1.5.0_09 C:\>c:\java\jdk1.5.0_09\bin\java ----_JAVA_LAUNCHER_DEBUG---- JRE path is c:\java\jdk1.5.0_09\jre jvm.cfg[0] = ->-client<- jvm.cfg[1] = ->-server<- jvm.cfg[2] = ->-hotspot<- name: -hotspot vmType: VM_ALIASED_TO alias: -client jvm.cfg[3] = ->-classic<- jvm.cfg[4] = ->-native<- jvm.cfg[5] = ->-green<- 222 micro seconds to parse jvm.cfg Default VM: client JVM path is c:\java\jdk1.5.0_09\jre\bin\client\jvm.dll 117104 micro seconds to LoadJavaVM JavaVM args: version 0x00010002, ignoreUnrecognized is JNI_FALSE, nOptions is 2 option[ 0] = '-Djava.class.path=.' option[ 1] = '-Dsun.java.launcher=SUN_STANDARD' Usage: java [-options] class [args...] (to execute a class) or java [-options] -jar jarfile [args...] (to execute a jar file) where options include: : : JDK 1.6.0 beta 2 C:\>c:\java\jdk1.6.0\bin\java ----_JAVA_LAUNCHER_DEBUG---- JRE path is c:\java\jdk1.6.0\jre jvm.cfg[0] = ->-client<- jvm.cfg[1] = ->-server<- jvm.cfg[2] = ->-hotspot<- name: -hotspot vmType: VM_ALIASED_TO alias: -client jvm.cfg[3] = ->-classic<- jvm.cfg[4] = ->-native<- jvm.cfg[5] = ->-green<- 281 micro seconds to parse jvm.cfg Default VM: client JVM path is c:\java\jdk1.6.0\jre\bin\client\jvm.dll JRE path is c:\java\jdk1.6.0\jre CRT path is c:\java\jdk1.6.0\jre\bin\msvcr71.dll 121300 micro seconds to LoadJavaVM JavaVM args: version 0x00010002, ignoreUnrecognized is JNI_FALSE, nOptions is 2 option[ 0] = '-Djava.class.path=.' option[ 1] = '-Dsun.java.launcher=SUN_STANDARD' Usage: java [-options] class [args...] (to execute a class) or java [-options] -jar jarfile [args...] (to execute a jar file) where options include: : : |