From: Eli Zaretskii <eliz@gnu.org>
To: "Mattias Engdegård" <mattiase@acm.org>
Cc: jrm@ftfl.ca, eggert@cs.ucla.edu, 37006@debbugs.gnu.org
Subject: bug#37006: 27.0.50; garbage collection not happening after 26de2d42
Date: Tue, 13 Aug 2019 18:37:42 +0300 [thread overview]
Message-ID: <83h86lrs8p.fsf@gnu.org> (raw)
In-Reply-To: <A3B3F9F1-4ADD-4565-876C-24A3E4AABC7F@acm.org> (message from Mattias Engdegård on Mon, 12 Aug 2019 19:00:37 +0200)
> From: Mattias Engdegård <mattiase@acm.org>
> Date: Mon, 12 Aug 2019 19:00:37 +0200
> Cc: Joseph Mingrone <jrm@ftfl.ca>, Paul Eggert <eggert@cs.ucla.edu>,
> 37006@debbugs.gnu.org
>
> What about biasing consing_until_gc by gc_cons_threshold, and change the condition in maybe_gc to (the moral equivalent of)
>
> if (consing_until_gc < gc_cons_threshold)
>
> ? It is practically as cheap as the current test against 0.
Yes, but the full calculation of the threshold is more complicated
than that. For starters, how do you handle gc_cons_threshold values
that are smaller than GC_DEFAULT_THRESHOLD / 10 under your proposal?
There are use cases where the value was below that before and is above
now, or the other way around, or was below and stays below.
And that's even before we consider other complications: when
memory-full is non-nil, we should use a different threshold; and what
about user changes to gc-cons-percentage?
next prev parent reply other threads:[~2019-08-13 15:37 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <5075406D-6DB8-4560-BB64-7198526FCF9F@acm.org>
2019-08-11 16:23 ` bug#37006: 27.0.50; garbage collection not happening after 26de2d42 Mattias Engdegård
2019-08-11 17:07 ` Eli Zaretskii
[not found] ` <83h86nu0pq.fsf@gnu.org>
[not found] ` <86pnlbphus.fsf@phe.ftfl.ca>
2019-08-12 2:31 ` Eli Zaretskii
2019-08-12 14:34 ` Joseph Mingrone
2019-08-12 16:49 ` Eli Zaretskii
2019-08-12 17:00 ` Mattias Engdegård
2019-08-13 15:37 ` Eli Zaretskii [this message]
2019-08-13 16:48 ` Mattias Engdegård
2019-08-13 17:04 ` Eli Zaretskii
2019-08-13 17:29 ` Mattias Engdegård
2019-08-13 17:21 ` Paul Eggert
2019-08-13 17:53 ` Eli Zaretskii
2019-08-13 19:32 ` Paul Eggert
2019-08-14 16:06 ` Eli Zaretskii
2019-08-15 1:37 ` Paul Eggert
2019-08-15 14:17 ` Eli Zaretskii
2019-08-15 18:51 ` Paul Eggert
2019-08-15 19:34 ` Eli Zaretskii
2019-09-14 7:51 ` Paul Eggert
2019-09-14 8:30 ` Eli Zaretskii
2019-08-11 12:39 Joseph Mingrone
2019-08-11 15:13 ` Eli Zaretskii
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