![]() Use the following set of commands to push the static library in your data file system, make it executable and run a stress test for 20 seconds of 990 MBs adb push stressapptest /data/local/tmp/Īdb shell chmod 777 /data/local/tmp/stressapptestĪdb shell /data/local/tmp/stressapptest -s 20 -M 990 -C 8 Executing the stressapptest ![]() You can push these static libraries via ADB and execute the stress test. I have created a forked structure of the original stressapptest in this repository which already has static libraries built for x86. You need to build for your test device architecture (x86, armv7, etc.). The tool is written in native and we need ndk-build from ndk for building this tool. Together with this tool and instrumentation, you can verify any speculation that you have when your system goes into memory pressure. This tool helps you to define the time and memory size of the stress test. Stressapptest is one of the tools which can help you to reproduce memory pressure on any device. In this article, I will be introducing you to a tool that I found to be super useful for reproducing memory pressure conditions in any device. Recently, working on a similar issue I stumbled upon this use case where I wanted to increase the device memory pressure and verify one of the native crashes in the app. Reproducing such memory stress conditions will help you write any instrumentation to verify the behavior of your app in memory pressure conditions and also to empathize with the users when the memory pressure occurs and the device and process start to throttle. The biggest problem in analyzing any issue related to high memory pressure is to be able to reproduce such memory pressure conditions in your local test device farms. You can create observability on such issues around the killing of your processes in android by tracking TRIM_MEMORY_EVENTS by overriding the onTrimMemory method in your application class. You can look at your app score in the proc file system path: /proc//oom_adj_score. ![]() Processes with a high score are killed first. LMKD assigns a oom_adj_score to each process which helps it to prioritize running processes. LMKD (Lower memory killer daemon) is responsible for killing processes to reclaim memory in case the system memory goes down. Native heap on the other hand has lesser restrictions and is not garbage collected by GC, which can risk the process if memory is not managed properly on the native side. Exceeding this limit leads to an out-of-memory exception even on high-end devices. Here, the memory stress we are discussing is not related to java allocations since the java heap has a limit on the allocations for a particular process. Your chances of stumbling upon memory stress issues increase when a large number of users on your app are on low-end devices. It's compatible with both Intel and Apple silicon architectures so it's ready for all current and future Mac models.Memory stress issues are less common in android as devices nowadays have considerably higher RAM. We wanted to make a simple to use utility that was useful to the Mac community at large, for everyone to use. No purchase, no in-app purchase and no ads. There's no cost for Endurance: CPU Stress Test. In addition to stress testing, it also shows the current CPU load, battery level, time elapsed for the test, along with all data logged to a CSV file. In fact, it's the perfect companion to TG Pro, which displays all internal temperatures such as the CPU, GPU, battery, etc along with fan speed and control. It's the easiest app for benchmarking how the Mac reacts to increased thermal pressure, along with the battery life. It's easy to customize from between 1-64 threads. Need to test at 50% CPU usage? Choose half the number of threads compared to cores and click run. It will keep the CPU busy from a low percentage or all the way to 100% for as long as it's needed. Instead of opening up Terminal, typing in cryptic commands, or trying to find outdated apps to test the CPU, it's as simple as choosing the number of threads to run and clicking start. ![]() Endurance: CPU Stress Test solves the problem of having a way to test the thermal limits or battery life of a Mac. ![]()
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