Re: Profiling memory usage

"Dr. Arne Babenhauserheide" <[email protected]> Fri, 24 Oct 2025 09:26:05 +0200

Newsgroups	gmane.lisp.guile.devel
Message-ID	<[email protected]>

Maxim Cournoyer <[email protected]> writes:

> (call-with-mmap-bytevector
> "/gnu/store/x00bkpkikw60m9mknl3y1shsj482pxzc-llvm-21.1.1/lib/libLLVM.so.21.1"
> (compose elf-dynamic-info-soname elf-dynamic-info parse-elf))
> => "libLLVM.so.21.1"
> --8<---------------cut here---------------end--------------->8---
>
> I'd like to measure how much memory this consumes during execution, but
> running this in ,profile at the REPL only prints: "No samples recorded."

Running it in a loop is the general approach to get samples recorded,
yes. But I usually check memory usage much easier: Do a lot of stuff,
then check the memory usage in top.

(also I don’t see the memory usage in ,profile)

This will miss parts of the effect of the gc, though, because memory
usage of guile itself seems not to get reduced after it was increased.

You can get more precise memory information via (gc-stats).

Best wishes,
Arne
-- 
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heißt politisch sein,
ohne es zu merken.
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