问Android dalvik虚拟机

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$ dalvikvm -help

dalvikvm: [options] class [argument ...]
dalvikvm: [options] -jar file.jar [argument ...]

The following standard options are recognized:
  -classpath classpath
  -Dproperty=value
  -verbose:tag  ('gc', 'jni', or 'class')
  -ea[:<package name>... |:<class name>]
  -da[:<package name>... |:<class name>]
   (-enableassertions, -disableassertions)
  -esa
  -dsa
   (-enablesystemassertions, -disablesystemassertions)
  -showversion
  -help

The following extended options are recognized:
  -Xrunjdwp:<options>
  -Xbootclasspath:bootclasspath
  -Xcheck:tag  (e.g. 'jni')
  -XmsN  (min heap, must be multiple of 1K, >= 1MB)
  -XmxN  (max heap, must be multiple of 1K, >= 2MB)
  -XssN  (stack size, >= 1KB, <= 256KB)
  -Xverify:{none,remote,all}
  -Xrs
  -Xint  (extended to accept ':portable' and ':fast')

These are unique to Dalvik:
  -Xzygote
  -Xdexopt:{none,verified,all,full}
  -Xnoquithandler
  -Xjnigreflimit:N  (must be multiple of 100, >= 200)
  -Xjniopts:{warnonly,forcecopy}
  -Xjnitrace:substring (eg NativeClass or nativeMethod)
  -Xstacktracefile:<filename>
  -Xgc:[no]precise
  -Xgc:[no]preverify
  -Xgc:[no]postverify
  -Xgc:[no]concurrent
  -Xgc:[no]verifycardtable
  -XX:+DisableExplicitGC
  -X[no]genregmap
  -Xverifyopt:[no]checkmon
  -Xcheckdexsum