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Commit 53250104 authored by Ian Rogers's avatar Ian Rogers
Browse files

Extra GC heap configuration parameters. 

Allows parameters to increase the maximum free size. b/6606849

Change-Id: Ia74ccdbb8e32954820e3bd26f441b2c2fac889f4
parent d86077c3

core/jni/AndroidRuntime.cpp

+24 −0
Original line number Diff line number Diff line
@@ -453,6 +453,9 @@ int AndroidRuntime::startVm(JavaVM** pJavaVM, JNIEnv** pEnv) 
    char heapstartsizeOptsBuf[sizeof("-Xms")-1 + PROPERTY_VALUE_MAX];

    char heapsizeOptsBuf[sizeof("-Xmx")-1 + PROPERTY_VALUE_MAX];

    char heapgrowthlimitOptsBuf[sizeof("-XX:HeapGrowthLimit=")-1 + PROPERTY_VALUE_MAX];

    char heapminfreeOptsBuf[sizeof("-XX:HeapMinFree=")-1 + PROPERTY_VALUE_MAX];

    char heapmaxfreeOptsBuf[sizeof("-XX:HeapMaxFree=")-1 + PROPERTY_VALUE_MAX];

    char heaptargetutilizationOptsBuf[sizeof("-XX:HeapTargetUtilization=")-1 + PROPERTY_VALUE_MAX];

    char extraOptsBuf[PROPERTY_VALUE_MAX];

    char* stackTraceFile = NULL;

    bool checkJni = false;
@@ -555,6 +558,27 @@ int AndroidRuntime::startVm(JavaVM** pJavaVM, JNIEnv** pEnv) 
        mOptions.add(opt);

    }



    strcpy(heapminfreeOptsBuf, "-XX:HeapMinFree=");

    property_get("dalvik.vm.heapminfree", heapminfreeOptsBuf+16, "");

    if (heapminfreeOptsBuf[16] != '\0') {

        opt.optionString = heapminfreeOptsBuf;

        mOptions.add(opt);

    }



    strcpy(heapmaxfreeOptsBuf, "-XX:HeapMaxFree=");

    property_get("dalvik.vm.heapmaxfree", heapmaxfreeOptsBuf+16, "");

    if (heapmaxfreeOptsBuf[16] != '\0') {

        opt.optionString = heapmaxfreeOptsBuf;

        mOptions.add(opt);

    }



    strcpy(heaptargetutilizationOptsBuf, "-XX:HeapTargetUtilization=");

    property_get("dalvik.vm.heaptargetutilization", heaptargetutilizationOptsBuf+26, "");

    if (heapmaxfreeOptsBuf[26] != '\0') {

        opt.optionString = heaptargetutilizationOptsBuf;

        mOptions.add(opt);

    }



    /*

     * Enable or disable dexopt features, such as bytecode verification and

     * calculation of register maps for precise GC.