Hello Dmitry, On 2/1/21 11:42 AM, Dmitry Vorobev wrote: > 'malloc_trim' was and is never called from the 'free' function. see > related bug in glibc tracker: > https://sourceware.org/bugzilla/show_bug.cgi?id=2531. or '__int_free' > function. Only the top part of the heap is trimmed after some calls to > 'free', which is different from 'malloc_trim' which also releases > memory in between chunks from all the arenas/heaps. Thanks. I wrote that sentence, but looking back, I must have been confused. I've applied your patch. Cheers, Michael > diff --git a/man3/malloc_trim.3 b/man3/malloc_trim.3 > index 3c4cf5e8b..84e73fd70 100644 > --- a/man3/malloc_trim.3 > +++ b/man3/malloc_trim.3 > @@ -80,15 +80,6 @@ T} Thread safety MT-Safe > .SH CONFORMING TO > This function is a GNU extension. > .SH NOTES > -This function is automatically called by > -.BR free (3) > -in certain circumstances; see the discussion of > -.B M_TOP_PAD > -and > -.B M_TRIM_THRESHOLD > -in > -.BR mallopt (3). > -.PP > Only the main heap (using > .BR sbrk (2)) > honors the > -- Michael Kerrisk Linux man-pages maintainer; http://www.kernel.org/doc/man-pages/ Linux/UNIX System Programming Training: http://man7.org/training/
