z2_plus: init: Dynamically set Dalvik properties

Change-Id: I656cbed7abf351fea4129e7ff3c930eb9d8914ae
Signed-off-by: dd3boh <dade.garberi@gmail.com>

1 files changed, 29 insertions, 0 deletions

diff --git a/init/init_z2_plus.cpp b/init/init_z2_plus.cpp
index fd30f51..33fe6b4 100644
--- a/init/init_z2_plus.cpp
+++ b/init/init_z2_plus.cpp
@@ -36,6 +36,9 @@
 #include "log.h"
 #include "util.h"
 
+char const *heapminfree;
+char const *heapmaxfree;
+
 static void init_alarm_boot_properties()
 {
     int boot_reason;
@@ -67,6 +70,23 @@ static void init_alarm_boot_properties()
      }
 }
 
+void check_ram()
+{
+    struct sysinfo sys;
+
+    sysinfo(&sys);
+
+    if (sys.totalram > 3072ull * 1024 * 1024) {
+        // from - phone-xxxhdpi-4096-dalvik-heap.mk
+        heapminfree = "4m";
+        heapmaxfree = "16m";
+    } else {
+        // from - phone-xxhdpi-3072-dalvik-heap.mk
+        heapminfree = "512k";
+        heapmaxfree = "8m";
+    }
+}
+
 void vendor_load_properties() {
     char device[PROP_VALUE_MAX];
     char rf_version[PROP_VALUE_MAX];
@@ -77,6 +97,15 @@ void vendor_load_properties() {
         return;
 
         property_set("ro.product.model", "Z2 Plus");
+    
+    check_ram();
+
+    property_set("dalvik.vm.heapstartsize", "8m");
+    property_set("dalvik.vm.heapgrowthlimit", "256m");
+    property_set("dalvik.vm.heapsize", "512m");
+    property_set("dalvik.vm.heaptargetutilization", "0.75");
+    property_set("dalvik.vm.heapminfree", heapminfree);
+    property_set("dalvik.vm.heapmaxfree", heapmaxfree);
 
     init_alarm_boot_properties();
 }