absoluteMaxSize dalvik.vm.heapsize

   沒翅膀的飛鳥〝d:\linux\linuxkernel\WORKING_DIRECTORY\android-omap-20111108-gingerbread\dalvik\vm\alloc\HeapSource.cGcHeap *dvmHeapSourceStartup(size_t startSize, size_t absoluteMaxSize){    /*     * Allocate a contiguous region of virtual memory to subdivided     * among the heaps managed by the garbage collector.     */    length = ALIGN_UP_TO_PAGE_SIZE(absoluteMaxSize);//    base = dvmAllocRegion(length, PROT_NONE, "dalvik-heap");//doesn't support PROT_NONE on windows    base = dvmAllocRegion(length, PROT_READ | PROT_WRITE, "dalvik-heap");d:\linux\linuxkernel\WORKING_DIRECTORY\android-omap-20111108-gingerbread\dalvik\vm\alloc\Heap.cbool dvmHeapStartup(){    gcHeap = dvmHeapSourceStartup(gDvm.heapSizeStart, gDvm.heapSizeMax);d:\linux\linuxkernel\WORKING_DIRECTORY\android-omap-20111108-gingerbread\dalvik\vm\alloc\Alloc.cbool dvmGcStartup(void){    dvmInitMutex(&gDvm.gcHeapLock);      return dvmHeapStartup();}d:\linux\linuxkernel\WORKING_DIRECTORY\android-omap-20111108-gingerbread\dalvik\vm\Init.cstatic int dvmProcessOptions(int argc, const char* const argv[],    bool ignoreUnrecognized){        } else if (strncmp(argv[i], "-Xmx", 4) == 0) {int dvmStartup(int argc, const char* const argv[], bool ignoreUnrecognized,    JNIEnv* pEnv){    setCommandLineDefaults();    cc = dvmProcessOptions(argc, argv, ignoreUnrecognized);if (!dvmGcStartup())int dvmPrepForDexOpt(const char* bootClassPath, DexOptimizerMode dexOptMode,    DexClassVerifyMode verifyMode, int dexoptFlags){    setCommandLineDefaults();if (!dvmGcStartup())d:\linux\linuxkernel\WORKING_DIRECTORY\ango\angowx\android\AndroidRuntime\AndroidRuntime.cppint AndroidRuntime::startVm(JavaVM** pJavaVM, JNIEnv** pEnv){    strcpy(heapsizeOptsBuf, "-Xmx");    property_get("dalvik.vm.heapsize", heapsizeOptsBuf+4, "16m");    opt.optionString = heapsizeOptsBuf;    mOptions.add(opt);www.2cto.com    if (JNI_CreateJavaVM(pJavaVM, pEnv, &initArgs) < 0) {D:\linux\linuxkernel\WORKING_DIRECTORY\android-omap-20111108-gingerbread\dalvik\vm\Jni.c    if (dvmStartup(argc, argv, args->ignoreUnrecognized, (JNIEnv*)pEnv) != 0) {  d:\linux\linuxkernel\WORKING_DIRECTORY\android-omap-20111108-gingerbread\dalvik\vm\Init.cstatic void setCommandLineDefaults(){    /* Defaults overridden by -Xms and -Xmx.     * TODO: base these on a system or application-specific default     */    gDvm.heapSizeStart = 2 * 1024 * 1024;   // Spec says 16MB; too big for us.//    gDvm.heapSizeMax = 16 * 1024 * 1024;    // Spec says 75% physical mem    gDvm.heapSizeMax = 32 * 1024 * 1024;    // Spec says 75% physical mem