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Commit 4e24aac6 authored by Dianne Hackborn's avatar Dianne Hackborn
Browse files

Add some standard definitions for device heaps. 

These can be included as desired by particular devices to configure
their Dalvik heap in a standard way.

Change-Id: I487c751d7c583b0e93552f16ab43a93314219778
parent cd173919

api/current.xml

+11 −0
Original line number Diff line number Diff line
@@ -24307,6 +24307,17 @@ 
 visibility="public"

>

</method>

<method name="getLargeMemoryClass"

 return="int"

 abstract="false"

 native="false"

 synchronized="false"

 static="false"

 final="false"

 deprecated="not deprecated"

 visibility="public"

>

</method>

<method name="getMemoryClass"

 return="int"

 abstract="false"

build/phone-hdpi-512-dalvik-heap.mk

0 → 100644
+23 −0
Original line number Diff line number Diff line 
#

# Copyright (C) 2010 The Android Open Source Project

#

# Licensed under the Apache License, Version 2.0 (the "License");

# you may not use this file except in compliance with the License.

# You may obtain a copy of the License at

#

#      http://www.apache.org/licenses/LICENSE-2.0

#

# Unless required by applicable law or agreed to in writing, software

# distributed under the License is distributed on an "AS IS" BASIS,

# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

# See the License for the specific language governing permissions and

# limitations under the License.

#



# Provides overrides to configure the Dalvik heap for a standard high density

# phone with around 512MB total RAM.



PRODUCT_PROPERTY_OVERRIDES += \

    dalvik.vm.heapstartsize=5m \

    dalvik.vm.smallheapsize=32m \

    dalvik.vm.heapsize=32m

build/phone-hdpi-dalvik-heap.mk

0 → 100644
+22 −0
Original line number Diff line number Diff line 
#

# Copyright (C) 2010 The Android Open Source Project

#

# Licensed under the Apache License, Version 2.0 (the "License");

# you may not use this file except in compliance with the License.

# You may obtain a copy of the License at

#

#      http://www.apache.org/licenses/LICENSE-2.0

#

# Unless required by applicable law or agreed to in writing, software

# distributed under the License is distributed on an "AS IS" BASIS,

# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

# See the License for the specific language governing permissions and

# limitations under the License.

#



# Provides overrides to configure the Dalvik heap for a standard high density phone.



PRODUCT_PROPERTY_OVERRIDES += \

    dalvik.vm.heapstartsize=5m \

    dalvik.vm.smallheapsize=32m \

    dalvik.vm.heapsize=32m

build/tablet-dalvik-heap.mk

0 → 100644
+22 −0
Original line number Diff line number Diff line 
#

# Copyright (C) 2010 The Android Open Source Project

#

# Licensed under the Apache License, Version 2.0 (the "License");

# you may not use this file except in compliance with the License.

# You may obtain a copy of the License at

#

#      http://www.apache.org/licenses/LICENSE-2.0

#

# Unless required by applicable law or agreed to in writing, software

# distributed under the License is distributed on an "AS IS" BASIS,

# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

# See the License for the specific language governing permissions and

# limitations under the License.

#



# Provides overrides to configure the Dalvik heap for a standard tablet device.



PRODUCT_PROPERTY_OVERRIDES += \

    dalvik.vm.heapstartsize=5m \

    dalvik.vm.smallheapsize=48m \

    dalvik.vm.heapsize=48m

core/java/android/app/ActivityManager.java

+22 −0
Original line number Diff line number Diff line
@@ -62,6 +62,28 @@ public class ActivityManager { 
    

    /** @hide */

    static public int staticGetMemoryClass() {

        // Really brain dead right now -- just take this from the configured

        // vm heap size, and assume it is in megabytes and thus ends with "m".

        String vmHeapSize = SystemProperties.get("dalvik.vm.smallheapsize", "16m");

        return Integer.parseInt(vmHeapSize.substring(0, vmHeapSize.length()-1));

    }

    

    /**

     * Return the approximate per-application memory class of the current

     * device when an application is running with a large heap.  This is the

     * space available for memory-intensive applications; most applications

     * should not need this amount of memory, and should instead stay with the

     * {@link #getMemoryClass()} limit.  The returned value is in megabytes.

     * This may be the same size as {@link #getMemoryClass()} on memory

     * constrained devices, or it may be significantly larger on devices with

     * a large amount of available RAM.

     */

    public int getLargeMemoryClass() {

        return staticGetLargeMemoryClass();

    }

    

    /** @hide */

    static public int staticGetLargeMemoryClass() {

        // Really brain dead right now -- just take this from the configured

        // vm heap size, and assume it is in megabytes and thus ends with "m".

        String vmHeapSize = SystemProperties.get("dalvik.vm.heapsize", "16m");