android_emulator.md: Update to mention -read-only flag. Remove virtualgl
-read-only is an awesome new feature!
I haven't found virtualgl to be necessary any more.
Bug: 965498
Change-Id: Ief49d15d4cf8f8c0d3d8a968d0ffdf3703a74a46
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1621628
Auto-Submit: Andrew Grieve <[email protected]>
Reviewed-by: Peter Wen <[email protected]>
Commit-Queue: Peter Wen <[email protected]>
Cr-Commit-Position: refs/heads/master@{#662329}
diff --git a/docs/android_emulator.md b/docs/android_emulator.md
index 9a72634..2f78114a 100644
--- a/docs/android_emulator.md
+++ b/docs/android_emulator.md
@@ -60,17 +60,6 @@
* Can often be fixed by editing `~/.android/avd/YOUR_DEVICE/config.ini`.
* Look for `hw.sdCard=no` and set it to `yes`
-### Cloning an Image
-Running tests on two emulators is twice as fast as running on one. Rather
-than use the UI to create additional avds, you can clone an existing one via:
-
-```shell
-$ tools/android/emulator/clone_avd.py \
- --source-ini ~/.android/avd/EMULATOR_ID.ini \
- --dest-ini ~/.android/avd/EMULATOR_ID_CLONED.ini \
- --display-name "Cloned Emulator"
-```
-
## Starting an Emulator from the Command Line
Refer to: https://developer.android.com/studio/run/emulator-commandline.html.
@@ -80,6 +69,9 @@
### Basic Command Line Use
```shell
+$ # List virtual devices that you've created:
+$ ~/Android/Sdk/emulator/emulator -list-avds
+$ # Start a named device:
$ ~/Android/Sdk/emulator/emulator @EMULATOR_ID
```
@@ -88,6 +80,19 @@
`ssh`):
```shell
$ ~/Android/Sdk/emulator/emulator -no-window @EMULATOR_ID
+$ # This also works for new enough emulator builds:
+$ ~/Android/Sdk/emulator/emulator-headless @EMULATOR_ID
+```
+
+### Running Multiple Emulators
+Tests are automatically sharded amongst available devices. If you run multiple
+emulators, then running test suites becomes much faster. Refer to the
+"Multiple AVD instances" section of these [emulator release notes](
+https://androidstudio.googleblog.com/2018/11/emulator-28016-stable.html)
+for more about how this works.
+```shell
+$ # Start 12 emulators. Press Ctrl-C to stop them all.
+$ ( for i in $(seq 12); do ~/Android/Sdk/emulator/emulator @EMULATOR_ID -read-only & done; wait )
```
### Writable system partition
@@ -98,13 +103,6 @@
$ ~/Android/Sdk/emulator/emulator -writable-system @EMULATOR_ID
```
-### Remote Desktop
-For better graphics performance, use virtualgl (Googlers, see
-http://go/virtualgl):
-```shell
-$ vglrun ~/Android/Sdk/emulator/emulator @EMULATOR_ID
-```
-
## Using an Emulator
* Emulators show up just like devices via `adb devices`
* Device serials will look like "emulator-5554", "emulator-5556", etc.
