9/16/2023 0 Comments Nodejs memory monitor![]() ![]() You can also run this command from the Command Palette ( ⇧⌘P (Windows, Linux Ctrl+Shift+P)). Hover over the session you want to debug, and select the Take Performance Profile button. Once you're debugging, switch to the Run and Debug view ( ⇧⌘D (Windows, Linux Ctrl+Shift+D)), and find the Call Stack view. By calling console.profile() in your program.This allows you to take CPU profiles, heap profiles, and heap snapshots. Using the 'record' button in the Call Stack view.Once you are, you can collect a profile through a few methods: ![]() To collect a profile, you'll need to be debugging your program. ![]() Note that collecting a heap snapshot can take several minutes for more complex programs, and viewing heap snapshots is not currently supported in the built-in editor. If you notice your program is using a lot of RAM and want to find out where it's coming from, a heap snapshot can be useful. Heap Snapshot - A heap snapshot is an instantaneous view of where your program has allocated memory.Allocating memory can be costly, and reducing the amount of memory your code allocates can lead to performance wins. Heap Profile - A heap profile tells you how memory is allocated over time in your program.The CPU profile collects about 10,000 samples per second to tell you which expression-if any-is being run at that moment. Remember that, while you can wait on asynchronous promises or callbacks, only one JavaScript expression is executed at a time. CPU Profile - A CPU profile tells you where your program is spending its time while in JavaScript.Types of profilesĭepending on what you want to optimize, there are different kinds of profiles you may want to take. To get started, you'll first need to have the debugger configured for your Node.js program or browser app. Visual Studio Code supports collecting and viewing performance profiles for JavaScript programs. Configure IntelliSense for cross-compiling. ![]()
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