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For those Construct2 users who are experiencing Crosswalk performance problems with CLI 5.1.1:
- do not reference plugins in your intelxdk.config.additions.xml file, it will cause problems, see this post > Add plugins via Plugin Management Tool and avoid intelxdk.config.additions.xml file
- put your source into a www directory inside your project directory, see this post > Importing a Construct2 Game into the Intel XDK
- add the following to your intelxdk.config.additions.xml file, see this FAQ > How can I improve the performance of my Crosswalk app so it is as fast as Crosswalk 7 was?
<!-- Many Cordova config.xml preferences can be added thru this file, see: --> <!-- http://cordova.apache.org/docs/en/latest/config_ref/index.html --> <!-- https://cordova.apache.org/docs/en/5.4.0/config_ref/index.html#link-3 --> <!-- https://cordova.apache.org/docs/en/5.4.0/guide/platforms/ios/config.html --> <!-- https://cordova.apache.org/docs/en/5.4.0/guide/platforms/android/config.html --> <!-- https://cordova.apache.org/docs/en/5.4.0/guide/platforms/win8/index.html --> <!-- Set the debuggable preference to true to build a remote CDT debuggable app for --> <!-- Crosswalk apps on Android 4.0+ devices and Cordova apps on Android 4.4+ devices. --> <preference name="debuggable" value="true" /> <!-- Set the debuggable preference to false before you build for the store. --> <!-- use this feature to add command-lines to be used by Crosswalk builds on device --> <!-- see http://peter.sh/experiments/chromium-command-line-switches/ for complete list --> <intelxdk:crosswalk xwalk-command-line="--disable-pull-to-refresh-effect" /> <!-- ignore gpu blacklist for larger collection of gpu accelerated devices --> <intelxdk:crosswalk xwalk-command-line="--ignore-gpu-blacklist" /> <intelxdk:crosswalk xwalk-command-line="--show-fps-counter" /> <!-- you must remove space between option dashes "- -" to uncomment an option --> <!-- <intelxdk:crosswalk xwalk-command-line="- -ui-prioritize-in-gpu-process" --> <!-- controls configuration of Crosswalk-Android "SurfaceView" or "TextureView" --> <!-- see Sep 15 comments in https://crosswalk-project.org/jira/browse/XWALK-2233 --> <!-- default is SurfaceView if >= CW15 and TextureView if <= CW14 --> <!-- option can only be used with Intel XDK CLI5+ build systems --> <!-- SurfaceView is preferred, TextureView should only be used in special cases --> <!-- enable Crosswalk-Android TextureView by setting option to true --> <preference name="CrosswalkAnimatable" value="false" /> <!-- see https://github.com/apache/cordova-plugin-splashscreen for details --> <platform name="android"> <!-- below requires the splash screen plugin --> <!-- docs: https://github.com/apache/cordova-plugin-splashscreen --> <preference name="SplashScreen" value="screen" /> <preference name="AutoHideSplashScreen" value="true" /> <preference name="SplashScreenDelay" value="3000" /> <preference name="SplashMaintainAspectRatio" value="false" /> </platform> <platform name="ios"> <!-- below requires the splash screen plugin --> <!-- docs: https://github.com/apache/cordova-plugin-splashscreen --> <!-- <preference name="SplashScreen" value="Default" /> --> <preference name="AutoHideSplashScreen" value="true" /> <preference name="FadeSplashScreen" value="false"/> <preference name="FadeSplashScreenDuration" value="3"/> <!-- <preference name="FadeSplashScreenDuration" value="3000"/> --> <preference name="ShowSplashScreenSpinner" value="false"/> <!-- below requires the status bar plugin --> <!-- docs: https://github.com/apache/cordova-plugin-statusbar --> <!-- see http://devgirl.org/2014/07/31/phonegap-developers-guid --> <preference name="StatusBarOverlaysWebView" value="false" /> <preference name="StatusBarBackgroundColor" value="#000000" /> <preference name="StatusBarStyle" value="lightcontent" /> <!-- so iPhone and iPad rotate freely (CLI 5.1.1 and above) --> <!-- "default" means "portrait" for iPhone and "free" for iPad --> <preference name="Orientation" value="all" /> <preference name="DisallowOverscroll" value="true" /> </platform>
Crosswalk performance problems are usually due to a lack of the --ignore-gpu-blacklist option in the intelxdk.config.additions.xml file (see above for how to add it). Also, see this blog > Chromium Command-Line Options for Crosswalk Builds with the Intel XDK for some additional tools that can be used to modify Crosswalk webview runtime parameters.
CLI 4.1.2 included this option automatically. Because there is such a dramatic change to the CLI 5.x build systems, you must now add it manually to make sure it is part of your Crosswalk built app.
Note, that the current version of App Preview does not use Crosswalk, so your apps will always run slow on Android 4.x devices when you test them in App Preview (or when using the Test tab). Always build a Crosswalk app or use the Debug tab to test your Crosswalk performance. We plan to migrate App Preview to Crosswalk in a future release.
See the FPS differences in these two screenshots, where the only difference between the builds is the inclusion of the --ignore-gpu-blacklist option.
Built without the the --ignore-gpu-blacklist option:
Built with the the --ignore-gpu-blacklist option:
The tests above were done on a Samsung Galaxy Victory (model SPH-L300) phone, running Android 4.1.2 with 805MB total RAM and 1.83GB total storage. This is a slow and memory starved device, with a particularly cranky version of Android 4.x.
