From: Bruno Haible <bruno@clisp.org>
To: Ben Pfaff <blp@cs.stanford.edu>
Cc: "Tim Rühsen" <tim.ruehsen@gmx.de>,
bug-gnulib <bug-gnulib@gnu.org>, "Darshit Shah" <darnir@gnu.org>
Subject: Re: immutable string type
Date: Sun, 29 Dec 2019 10:29:53 +0100 [thread overview]
Message-ID: <6610661.GhE8slusZh@omega> (raw)
In-Reply-To: <CAA_G9+iPr9W5WSv_YiAJcORKHCJ1kOceNsSACojywZP94VGApA@mail.gmail.com>
Ben Pfaff wrote:
> This sort of thing won't work on systems with virtually indexed caches,
> at least not without inserting explicit flushes.
Good point. Yes, explicit data cache flushing instructions or - in the worst
case - system calls are necessary.
> I don't know whether
> virtually indexed caches still exist in the wild.
Yes, data caches are indexed by virtual address, not by physical address, on
many platforms. That makes the common case of a cache lookup faster.
Bruno
next prev parent reply other threads:[~2019-12-29 9:30 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-12-28 11:17 immutable string type Bruno Haible
2019-12-28 13:35 ` Tim Rühsen
2019-12-29 9:45 ` Bruno Haible
2019-12-29 12:07 ` Tim Rühsen
2019-12-29 18:49 ` Paul Eggert
2019-12-29 19:03 ` Tim Rühsen
2019-12-30 3:11 ` Paul Eggert
2021-01-18 8:17 ` Bruno Haible
2019-12-28 16:54 ` Ben Pfaff
2019-12-29 9:29 ` Bruno Haible [this message]
2019-12-28 18:15 ` Paul Eggert
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