From: Eric Wong <normalperson@...>
Date: 2018-05-17T02:58:57+00:00
Subject: [ruby-core:87097] Re: [Ruby trunk Feature#14767] [PATCH] gc.c: use monotonic counters for objspace_malloc_increase

> Btw, I noticed I leftover a ssize_t usage in my patch
> to gc_reset_malloc_info, will fixup if I commit this.

Updated patch with ssize_t fix, here:
https://80x24.org/spew/20180517024218.30730-1-e@80x24.org/raw


Also, I realized we don't need atomics or monotonic counter for
oldmalloc_increase.   The only time we use oldmalloc_increase
is at gc_reset_malloc_info:

  https://80x24.org/spew/20180517025137.GA1569@whir/raw

  (GC.stat needs adjustment, though)

Not sure I notice a performance improvement, maybe 0.5%
Hard to measure...

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