![]() Sizes, their solutions, and examples of implementation in AOSP. The following sections discuss various issues that affect OTA-update This produces a smaller patch compared to splitting files linearly and Mode in imgdiff splits oversized APK files, based on entry Improvements to splitting large zip files for block-based OTA updates.Patches are applied for A/B device updates. Improvements to the update_engine resulted in less memory consumed when.Tool selects the compression algorithm that would give the best compression Changes to the delta-generation tool usage, such as how the.Tool for deflate streams, that handles the compression and diff functions for Usage of Puffin recompression, a deterministic patching.Or more blocks in the filesystem (for example, system.img),ĭevice manufacturers or partners can add their ownĬompression algorithms, and can use different compressionĪlgorithms on different blocks of the same update. BrotliĬan be customized to optimize compression. Usage of Brotli, a generic-purpose, lossless-compressionĪlgorithm for full images on non-A/B device updates.Reduce the patch size for each file diff. Mitigate this, in Android 8.0 and higher, new features were implemented to Tool, which helps you keep block allocation consistent.Ī build system can create unnecessarily large patches in several ways. Tool, which filters out common build-related file changes to provide aĬleaner build file diff, and a block mapping Unnecessary file changesīetween builds have been eliminated, and only patch-related files are contained To make the contents of an OTA more transparent, AOSP includes build systemĬhanges designed to reduce the size of OTA patches. Increase the size of an OTA patch, and make it difficult to determine which The same code, built at different times, from different directories, or onĭifferent machines produces a large number of changed files. Systems can use this information as a guide for reducing the size of theirĪndroid OTA updates occasionally contain changed files that don't correspond ![]() Device implementers who maintain their own build Sources tool now notifies you when sourcemaps can't be loaded in What's new in DevTools (Microsoft Edge 96).This page describes changes added to AOSP to reduce unnecessary fileĬhanges between builds.Securely debug original code by using Azure Artifacts symbol server source maps.Securely debug original code by publishing source maps to the Azure Artifacts symbol server.Map the processed code to your original source code, for debugging.In DevTools, on the main toolbar, click the More Tools ( ) button, and then select the Source Maps Monitor tool. In the Sources tool, in the Page tab, select the file that the demo created for you, such as Coffee2.js. In a new tab or window, follow the instructions in Map the processed code to your original source code, for debugging, and then continue below.Ĭlose the popup dialog that the demo opens. Source mapping enables you to see and debug your original source code, rather than having to work with the reprocessed version of your code that's returned by the server. This tool is useful if your webpage uses source maps to map your reprocessed code to your original source code. Use the Source Maps Monitor tool to monitor which source files on your webpage requested loading of source maps, and whether the source maps were loaded.
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