Commit afaf937a authored by Omkar Chandorkar's avatar Omkar Chandorkar Committed by Adam Lawson
Browse files

nicky: libinit: handle dalvik props based on sysram 

* Adapted to Realme XT.
* We have 3 variants(4gb, 6gb & 8gb RAM)
* Values are taken from frameworks/native
parent 68571909

init/init_oplus.cpp

+40 −0
Original line number Diff line number Diff line
@@ -8,6 +8,7 @@ 


#define _REALLY_INCLUDE_SYS__SYSTEM_PROPERTIES_H_

#include <sys/_system_properties.h>

#include <sys/sysinfo.h>



using android::base::GetProperty;
@@ -27,6 +28,42 @@ void OverrideProperty(const char* name, const char* value) { 
    }

}



void property_override(char const prop[], char const value[], bool add = true) {

    prop_info *pi;



    pi = (prop_info *)__system_property_find(prop);

    if (pi)

        __system_property_update(pi, value, strlen(value));

    else if (add)

        __system_property_add(prop, strlen(prop), value, strlen(value));

}



void load_dalvikvm_properties() {

  struct sysinfo sys;

  sysinfo(&sys);

  if (sys.totalram > 6144ull * 1024 * 1024) {

    // from - phone-xhdpi-8192-dalvik-heap.mk

    property_override("dalvik.vm.heapstartsize", "24m");

    property_override("dalvik.vm.heaptargetutilization", "0.46");

    property_override("dalvik.vm.heapmaxfree", "48m");

    }

  else if (sys.totalram > 4096ull * 1024 * 1024) {

    // from - phone-xhdpi-6144-dalvik-heap.mk

    property_override("dalvik.vm.heapstartsize", "16m");

    property_override("dalvik.vm.heaptargetutilization", "0.5");

    property_override("dalvik.vm.heapmaxfree", "32m");

    }

  else {

    // from - phone-xhdpi-4096-dalvik-heap.mk

    property_override("dalvik.vm.heaptargetutilization", "0.7");

    property_override("dalvik.vm.heapstartsize", "8m");

    property_override("dalvik.vm.heapmaxfree", "16m");

  }

  property_override("dalvik.vm.heapgrowthlimit", "256m");

  property_override("dalvik.vm.heapsize", "512m");

  property_override("dalvik.vm.heapminfree", "8m");

}



/*

 * Only for read-only properties. Properties that can be wrote to more

 * than once should be set in a typical init script (e.g. init.oplus.hw.rc)
@@ -49,4 +86,7 @@ void vendor_load_properties() { 
        default:

            LOG(ERROR) << "Unidentied oplus project: " << prjName;

    }



    // dalvikvm props

    load_dalvikvm_properties();

}