The previous configuration sets target utilization as .25, which is geared towards
low memory devices. This path increases it to .75 and makes us pass the check:
(heaptargetutilization / 2) * heapsize = heapgrowthlimit
Example:
heapgrowthlimit: 256m
heapsize: 512m
heaptargetutilization: 0.75
0.75/2 * 512 = 192
To pass the check this has to be true:
192 = 256 (WRONG)
Check not passed.
This new configuration is optimized for higher RAM devices and passes the check:
heapgrowthlimit: 384m
heapsize: 1024m
heaptargetutilization: 0.75
0.75/2 * 1024 = 384
384 = 384 (TRUE)
Check passed.
Change-Id: I6839339382229da80546761c3746a032081ff2cd
Signed-off-by: Alex Naidis <alex.naidis@linux.com>
This change adds back the property overrides for several device
types as we had in CM 11.
It contains a squished commit of the following:
commit 5b9240927f8af0b26c406835df33b2d999496434
Author: Steve Kondik <shade@chemlab.org>
Date: Thu Nov 6 14:40:44 2014 -0800
Add hdpi-2048 tunings
commit ed579d8be17fb52ef92a1dc9c83843879f396fa1
Author: Steve Kondik <shade@chemlab.org>
Date: Sat Jan 4 12:12:00 2014 -0800
Update HWUI config for xxhdpi/2GB devices
commit 386f220e174f9ed5aad487867223033fd5d986c6
Author: Steve Kondik <shade@chemlab.org>
Date: Tue Aug 6 02:53:19 2013 -0700
hwui: Update configuration for 2GB/1080p devices
commit b7392d113d8ae6c3c07990bbb3f2621bef490d11
Author: Steve Kondik <shade@chemlab.org>
Date: Sat Jun 1 14:51:17 2013 +0200
provide overrides for hwui memory limits for xxhdpi phones
commit 247b3c635b1d6776ffedf3cd61a936546c2f6603
Author: Steve Kondik <shade@chemlab.org>
Date: Fri May 17 13:10:19 2013 -0700
Add heap configuration for 1080p phones with 2048m
* Increase heap start size to 16m to minimize GC with larger bitmaps
commit 9856e93970fd6def1349e564f17d42f505904eba
Author: Andrew Bartholomew <andrewb03@gmail.com>
Date: Thu Apr 25 13:48:21 2013 -0400
build/phone-xhdpi-1024-dalvik-heap.mk Revert AOSP heapgrowthlimit change from 64 to 96
This reverts part of AOSP change at
https://android.googlesource.com/platform/frameworks/native/+/c84e9844d621223d14178be521
Possible performance issues have arisen because of it. Discussion at
http://code.google.com/p/android/issues/detail?id=40961
Patch Set 2: Clean up commit message
commit bd7fb4be323f6f868a886b22e93cf203944af9a6
Author: Bhargav Upperla <bhargavuln@codeaurora.org>
Date: Thu May 23 12:50:15 2013 -0700
Configure dalvik heap parameters for low memory devices
Reduces after boot memory footprint by about 5-8MB
Note: This is for low memory based devices only (~512MB RAM
or less)
Change-Id: Id7e1967d18227359ad9631139bfd47e61e494829
Prevents apps hitting oome due to old linear alloc objects being
allocated in the java heap causing the heap to be larger than it
used to be.
Bug: 18707227
Change-Id: Ia49a7e6b24ae9fba1961d600d4599c17313b556b
This is for a 7in hdpi/tvdpi tablet with 1G of RAM.
That sounds kind-of familiar. I don't know. Have I seen
such a thing before? Maybe.
Bug: 6576049
Change-Id: Iabc245692d5106feec9199eb2b5a3d06e27a9b83
Abhisek Devkota