On Fri, Feb 07, 2025 at 03:37:31AM +0100, Christian Schulte wrote:
> Hi @misc,
>
> does OpenBSD provide something equivalent to Linux' malloc_trim(3)[1]? I
> am yet to port an application from Linux to OpenBSD and that application
> is making use of malloc_trim(3). I removed the calls to malloc_trim(3)
> from that application while still running on Linux and it seems it
> really needs to perform those calls there in order to release memory to
> the OS after having run for a couple of weeks without restart. That
> application is using pthreads(7)[2] a lot but this is not the issue.
> Even if it would fork/execve, those processes also would not get
> terminated up until the whole application is terminated.
>
> [1] <https://man7.org/linux/man-pages/man3/malloc_trim.3.html>
> [2] <https://man7.org/linux/man-pages/man7/pthreads.7.html>
>
> --
> Christian
>
No all mallocs are created the same. OpenBSD's malloc does release
memory back to the OS automatically. It's even quite aggressive in
that respect. So just don't worry.
I do not understand your last two sentences.
-Otto
