0eb713d17a45520832aac4e69ed5ec2af3558b1b - platform/frameworks/base

commit	0eb713d17a45520832aac4e69ed5ec2af3558b1b	[log] [tgz]
author	Seigo Nonaka <nona@google.com>	Wed Sep 12 16:50:08 2018 -0700
committer	Seigo Nonaka <nona@google.com>	Thu Sep 13 10:58:14 2018 -0700
tree	ef9830dc1f16cefc2248e880a02ef137508b8428
parent	7ee06167def672bf961d023fc281878400bf8806 [diff]

Create LocaleList and HashSet lazily to save OS boot time

Creating HashSet and LocaleList in Zygote make performance impact
to the boot time. Since this API is not called so frequently and less
application is expected to call this API. So let's make Set and
LocaleList only when it is requested.

Here is a result of boot time perf test:
Before: TOTAL_BOOT_TIME : 16229.5
After : TOTAL_BOOT_TIME : 11704.0

Bug: 114774424
Test: atest android.graphics.fonts
Test: atest TypefaceSystemFallbackTest
Change-Id: I07247a78f6091c8adfaac748fe4a77a4597b1ae2

core/tests/coretests/src/android/graphics/TypefaceSystemFallbackTest.java[diff]
core/tests/coretests/src/android/text/FontFallbackSetup.java[diff]
graphics/java/android/graphics/fonts/Font.java[diff]
graphics/java/android/graphics/fonts/SystemFonts.java[diff]

4 files changed

tree: ef9830dc1f16cefc2248e880a02ef137508b8428