From: Maxime Devos <maximedevos@telenet.be>
To: "Linus Björnstam" <linus.internet@fastmail.se>,
"Damien Mattei" <damien.mattei@gmail.com>,
guile-user <guile-user@gnu.org>,
guile-devel <guile-devel@gnu.org>
Subject: Re: Scheme+
Date: Mon, 20 Dec 2021 17:33:11 +0000 [thread overview]
Message-ID: <7706b14ef6319e7784ee73a74ec399db28751c53.camel@telenet.be> (raw)
In-Reply-To: <14e10823-2655-48c2-9736-383708da492e@www.fastmail.com>
Linus Björnstam schreef op ma 20-12-2021 om 09:15 [+0100]:
> I played around with it and it seems to rely heavily on mutation,
> which makes guile (and chez and racket for that matter) box the
> values. That adds a layer of indirection to memory access, meaning
> slower code (apart from the more obvious problems of continuation
> safety and threading safety).
Concerning thread-safety and continuation safety: as long as
continuations aren't resumed multiple times (*), and as long as no
closures are passed, then the mutation doesn't make any observable
difference (except fastness).
(*) E.g., the continuations that guile-fibers construct are resumed
only once.
Greetings,
Maxime.
prev parent reply other threads:[~2021-12-20 17:33 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-12-20 0:05 Scheme+ Damien Mattei
2021-12-20 7:22 ` Scheme+ Dr. Arne Babenhauserheide
2021-12-20 8:15 ` Scheme+ Linus Björnstam
2021-12-20 9:20 ` Scheme+ Damien Mattei
2021-12-20 17:33 ` Maxime Devos [this message]
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