[systemd-devel] Antw: [EXT] Re: Looking for known memory leaks triggered by stress testing add/remove/up/down interfaces

[Ulrich Windl]

>>> Lennart Poettering <lennart at poettering.net> schrieb am 18.02.2021 um 19:30
in
Nachricht <YC6yQIX+7MFLvhmc at gardel-login>:
...
> entry instead of asking for new memory again. This allocation cache is
> a bit quicker then going to malloc() all the time, but means if you
> just watch the heap you'll assume there's a leak even though there
> isn't really, the memory is not lost after all, and will be reused
> eventually if we need it.

That's an interesting point of view: If you save memory in case you might need
it at some unspecified later time (which includes "never") it's "practically"
(while not theoretically) a memory leak.

> 
> You may use the env var SYSTEMD_MEMPOOL=0 to turn this logic off, but
> not sure v230 already knew that env var.
> 
> Lennart
> 
> ‑‑
> Lennart Poettering, Berlin
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