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nusance
2017 Aug 12
3
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Strange because in my all my experiments calling malloc.trim always helped
- memory reported by top decreased to the level it supposed to be. Do you
have in mind case when calling malloc.trim won't do anything? Also
shouldn't MALLOC_TRIM_THRESHOLD_ env variable has impact on malloc.trim
calls? At the moment seems any value is ignored...
12 ???. 2017 ?. 6:09 ?? ???????????? "Simon
2017 Aug 12
0
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...emacs, Xorg and opera. I tried the same experiment on my system with
emacs, Xorg and firefox and didn't see what that post saw -- maybe 1
few percent recovery.
At this point I'm not sure we have enough data to show that adding
malloc_trim calls at the end of each GC, say, would warrant the
nusance of having to add configure checks. It would also be necessary
to make sure that adding this doesn't significantly ompact malloc
performance.
I don't know if this issue exists on Windows as well; it might as the
basic malloc we use there is the same as used in glibc (Dog Lea's
malloc)....