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Release Updates
Emulator 28.1.10 Canary
Friday, March 8, 2019
Emulator 28.1.10 is now available in the Canary and Dev channels. Changes:
Project Marble
Performance monitoring
. We've added more detailed monitoring to emulator performance and resource usage.
SHOW_PERF_STATS=1
. This environment variable enables tracking CPU and memory usage and also breaks down memory usage of graphics versus total resident memory.
ANDROID_EMU_TRACING=1
. This environment variable enables printing every time an input or graphics operations takes a long time (defined to be >1 ms).
This is to address concerns from users where on Windows, more jank (dropped frames) is experienced versus on macOS/Linux. We're now paying more attention to this issue, and noticed that long graphics operations happen tend to take even longer on Windows, which may point to the cause.
Graphics optimization
. Sped up uniform uploads (
glUniform*
) by 10-20%.
LC_ALL=C
by default
. To address issues with crashes and other problems stemming from different locales, we now set
LC_ALL=C
by default.
Host audio input control for CI setups
. To work better with CI setups that need to use host audio input, we've added a command line flag and console command to allow host audio.
Command line flag:
-allow-host-audio
: Microphone will be activated on startup.
Console command:
adb emu avd hostmicon
,
adb emu avd hostmicoff
: Control whether host audio input is used.
More quality improvements for CI users
.
emulator-headless
now should not depend on system libc++, and properly uses the included libc++ that we ship.
To address issues with
unexpected EOF
when logcat prints a lot, we've increased the logcat buffer size to 2M.
Vulkan
Removed a code path where Vulkan support check was incorrectly ran when the feature flag was not enabled.
We now support
VK_ANDROID_external_memory_android_hardware_buffer
, enabling Skia Vulkan Android UI with a properly set-up system image.
Foldable device
We saw that foldable emulator UI was being activated improperly in some cases. To address this, foldable is now a hardware property in AVD config.ini.
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