From: Eric Wong <normalperson@...>
Date: 2018-08-09T17:43:26+00:00
Subject: [ruby-core:88402] Re: [Ruby trunk Feature#14759] [PATCH] set M_ARENA_MAX for glibc malloc

shyouhei@ruby-lang.org wrote:
> One question: is it possible to cancel the effect of
> M_ARENA_MAX ?  Given @mame's corner case, it might be
> desirable for a user (or sysadmin) to be able to choose the
> behaviour between the proposed one and the status quo.

Environment variable (MALLOC_ARENA_MAX) at startup (only),
or they can use fiddle or C extension to call mallopt
at anytime once a program is running.

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