From: Eli Zaretskii <eliz@gnu.org>
To: Paul Eggert <eggert@cs.ucla.edu>, Richard Stallman <rms@gnu.org>
Cc: lekktu@gmail.com, 12450@debbugs.gnu.org
Subject: bug#12450: Remove configure's --without-sync-input option.
Date: Sun, 16 Sep 2012 09:33:02 +0300 [thread overview]
Message-ID: <83fw6iscip.fsf@gnu.org> (raw)
In-Reply-To: <5054DE30.1020806@cs.ucla.edu>
> Date: Sat, 15 Sep 2012 12:59:44 -0700
> From: Paul Eggert <eggert@cs.ucla.edu>
> CC: 12450@debbugs.gnu.org, lekktu@gmail.com
>
> >> -#ifdef REL_ALLOC
> >> - malloc_hysteresis = 32;
> >> -#else
> >> - malloc_hysteresis = 0;
> >> -#endif
>
> malloc_hysteresis is used only by the non-SYNC_INPUT code.
No, it is also used indirectly, via __malloc_extra_blocks, in
gmalloc.c and in ralloc.c. Since only one platform I know of that
uses SYNC_INPUT also uses ralloc.c, I'm not sure it's safe to make
this change to __malloc_extra_blocks.
But there's something I don't understand about this snippet. Why does
it set the value to 32 conditioned by REL_ALLOC, and just a few days
after the change which introduced this snippet (18 years ago) there
was a change committed in ralloc.c that overrides the value of
__malloc_extra_blocks with 64? If using ralloc.c always sets
__malloc_extra_blocks to 64, why setting it to 32 in alloc.c is
conditioned by REL_ALLOC?
Richard, you made both changes -- can you perhaps shed some light on
this?
next prev parent reply other threads:[~2012-09-16 6:33 UTC|newest]
Thread overview: 43+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-09-15 7:54 bug#12450: Remove configure's --without-sync-input option Paul Eggert
2012-09-15 9:32 ` Eli Zaretskii
2012-09-15 10:14 ` Paul Eggert
2012-09-15 11:03 ` Eli Zaretskii
2012-09-15 19:59 ` Paul Eggert
2012-09-15 20:15 ` Eli Zaretskii
2012-09-15 20:31 ` Paul Eggert
2012-09-16 6:33 ` Eli Zaretskii [this message]
2012-09-16 7:47 ` Paul Eggert
2012-09-16 8:05 ` Eli Zaretskii
2012-09-16 8:17 ` Paul Eggert
2012-09-16 8:21 ` Eli Zaretskii
2012-09-16 8:24 ` Eli Zaretskii
2012-09-16 8:34 ` Paul Eggert
2012-09-16 8:53 ` Eli Zaretskii
2012-09-15 21:12 ` Stefan Monnier
2012-09-16 5:55 ` Eli Zaretskii
2012-09-16 14:58 ` Stefan Monnier
2012-09-16 15:45 ` Eli Zaretskii
2012-09-16 16:30 ` Paul Eggert
2012-09-16 18:40 ` Eli Zaretskii
2012-09-16 19:55 ` Jan Djärv
2012-09-16 18:37 ` Stefan Monnier
2012-09-16 9:33 ` Daniel Colascione
2012-09-16 10:43 ` Eli Zaretskii
2012-09-16 15:10 ` Stefan Monnier
2012-09-16 15:40 ` Eli Zaretskii
2012-09-15 22:18 ` Richard Stallman
2012-09-16 3:15 ` Paul Eggert
2012-09-16 6:10 ` Eli Zaretskii
2012-09-16 8:23 ` Paul Eggert
2012-09-16 8:32 ` Eli Zaretskii
2012-09-16 21:48 ` Paul Eggert
2012-09-17 7:42 ` Eli Zaretskii
2012-09-21 20:50 ` Paul Eggert
2012-09-22 9:03 ` Eli Zaretskii
2012-09-22 9:34 ` Paul Eggert
2012-09-22 9:50 ` Eli Zaretskii
2012-09-22 10:01 ` Paul Eggert
2012-09-16 9:52 ` Daniel Colascione
2012-09-16 10:44 ` Eli Zaretskii
2012-09-16 10:56 ` Daniel Colascione
2012-09-17 7:41 ` Eli Zaretskii
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