From: Paul Eggert <eggert@cs.ucla.edu>
To: Eli Zaretskii <eliz@gnu.org>
Cc: 8528@debbugs.gnu.org, Evans Winner <ego111@gmail.com>
Subject: bug#8528: 24.0.50; 32-bit Emacs with apparent 128M buffer size limit
Date: Wed, 20 Apr 2011 23:18:55 -0700 [thread overview]
Message-ID: <4DAFCC4F.1080900@cs.ucla.edu> (raw)
In-Reply-To: <83r58w2lst.fsf@gnu.org>
On 04/20/11 22:52, Eli Zaretskii wrote:
> Paul, could you please tell where do you see twice doubling of the
> file size in insert-file-contents?
I assumed that it was because the internal buffers contain an
Emacs-encoded version of the file, which could be as long as four
times the actual file size, because a single byte in the file
might expand to 4 bytes inside Emacs in some cases.
That would explain the behavior that you saw: if your file's
internal encoding was the same as the external, you wouldn't observe any
problem. The problem would be exhibited only with files containing
many characters that bloat when read into memory. However,
I didn't investigate the matter thoroughly; perhaps someone
who's more expert on how Emacs encodes things internally could
speak up.
next prev parent reply other threads:[~2011-04-21 6:18 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-04-20 21:04 bug#8528: 24.0.50; 32-bit Emacs with apparent 128M buffer size limit Evans Winner
2011-04-21 5:52 ` Eli Zaretskii
2011-04-21 6:18 ` Paul Eggert [this message]
2011-04-21 6:40 ` Eli Zaretskii
2011-04-21 6:58 ` Paul Eggert
2011-04-21 13:20 ` Eli Zaretskii
2011-04-29 19:49 ` Eli Zaretskii
2011-05-02 14:53 ` Stefan Monnier
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