Show HN: I wrote a tool in Rust for tracking all allocations in a Linux process

Re:Show HN: I wrote a tool in Rust for tracking all allocati... by stevefan1999 on Wednesday February 15, 2023 @11:45AM (#34806527)

If this project can trace memory allocation/deallocation and their call stacks in real time -- this would be super useful, because we can statistically profile which function is always allocating without proper free in a certain time frame (when the memory is supposed to be freed), because valgrind only tells you there are memory leaks but not where is the leak exactly.

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Re:Show HN: I wrote a tool in Rust for tracking all allocati... by mkimball on Wednesday February 15, 2023 @12:17PM (#34807163)

Depends on what you mean by "real time". My method of crawling the stack impacts execution speed of the app you are tracing. I intended to do future work to minimize that impact.

With allocscope, you do get a callstack for the allocations which leak, though.

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Re:Show HN: I wrote a tool in Rust for tracking all allocati... by stevefan1999 on Wednesday February 15, 2023 @09:09PM (#34814053)

For real time I mean it will not severely slows down a game from 120fps to 40fps, this kind of real time

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Re:Show HN: I wrote a tool in Rust for tracking all allocati... by Too on Wednesday February 15, 2023 @11:50PM (#34815179)

Valgrind with --leak-check does include the stack trace of where unfreed memory was originally allocated.

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