To do this restart the app by selecting Run-> Profile ‘app’. From the memory profiler I captured a native allocation recording throughout the duration of the GPU emulation demo. Starting from a clean state, especially when looking at an unfamiliar codebase, can help narrow our focus. To do this with the GPU emulation app, I stopped the running app and started profiling a fresh instance. Starting with Android Studio 4.1 Canary 6, we can grab a recording of native memory allocations to analyze why memory isn’t being released. The Native memory grows each time we enter the GpuEmulationStressTestActivity, however this memory does not seem to reset after each run, which might be indicative of a leak.The GPU memory increases as one may expect from a GPU emulation app, however it also looks like this memory gets properly cleaned up after the Activity is finished.Showing gradual increase in native memory with each run of the “Gpu emulation stress test”Īfter running the simulation a few times we can see a few interesting patterns. To do this click the profile button in Android Studio, and enter the memory profiler for more detailed memory tracking information. When a memory leak is suspected, it’s often a good idea to start at a high level and watch for patterns in the system memory. To follow along, clone or download the sample from. The rest of this article will walk you through how to use the Native Memory Profiler to help track down a leak, using the Gpu Emulation Stress Test as an example project. The native memory recording is built on top of the Perfetto backend, the next generation performance instrumentation and tracing solution for Android.Ī common technique when trying to debug memory issues is to understand what is allocating memory and what is freeing memory. With Android Studio 4.1, we’ve implemented the ability to record call stacks of native memory allocations in our Memory Profiler. We’ve heard from those of you using C++ that debugging native memory can be fairly difficult, particularly in games. Our previous post focused on What’s New in System Trace. This is second in a two part series on What’s New in Profilers in Android Studio 4.1. Native Memory Profiling with Android Studio 4.1
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