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master 309554edb4f 3/3: ; Mention 64-bit first in FAQ on large files
From: |
Stefan Kangas |
Subject: |
master 309554edb4f 3/3: ; Mention 64-bit first in FAQ on large files |
Date: |
Thu, 28 Sep 2023 15:45:30 -0400 (EDT) |
branch: master
commit 309554edb4f7f6e81d014e7d7aed5ac890899cc0
Author: Stefan Kangas <stefankangas@gmail.com>
Commit: Stefan Kangas <stefankangas@gmail.com>
; Mention 64-bit first in FAQ on large files
* doc/misc/efaq.texi (Problems with very large files): Mention
64-bit machines before 32-bit ones, as they are more common.
---
doc/misc/efaq.texi | 10 +++++-----
1 file changed, 5 insertions(+), 5 deletions(-)
diff --git a/doc/misc/efaq.texi b/doc/misc/efaq.texi
index 600f4435e62..2fc8e60d400 100644
--- a/doc/misc/efaq.texi
+++ b/doc/misc/efaq.texi
@@ -3301,12 +3301,12 @@ Emacs has an inherent fixed limitation on the size of
buffers. This
limit is stricter than the maximum size of objects supported by other
programs on the same architecture.
-The maximum buffer size on 32-bit machines is 512 MBytes. If Emacs
-was built using the @code{--with-wide-int} flag, the maximum buffer
-size on 32-bit machines is 2 GB.
+The maximum buffer size on 64-bit machines is 2.3 exabytes
+(@code{most-positive-fixnum}).
-Emacs compiled on a 64-bit machine can handle much larger buffers; up
-to @code{most-positive-fixnum} (2.3 exabytes).
+Emacs compiled on a 32-bit machine can handle buffers up to 512
+MBytes. If Emacs was built using the @code{--with-wide-int} flag, the
+maximum buffer size on 32-bit machines is 2 GB.
Due to things like decoding of multibyte characters, you can only
visit files with a size that is roughly half the buffer size limit.