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authorGlenn Morris <rgm@gnu.org>2011-09-24 11:27:18 -0700
committerGlenn Morris <rgm@gnu.org>2011-09-24 11:27:18 -0700
commite1bf8792e9ea9b2bba59c1937c0ff4120b9f74e9 (patch)
tree11271d721cf010f8eb837936afd0795f2d00eadf /etc
parent0a2132baa8e795b72d35833209132d23a1553bc2 (diff)
* etc/PROBLEMS: Very long lines being slow is a known issue.
Diffstat (limited to 'etc')
-rw-r--r--etc/PROBLEMS6
1 files changed, 6 insertions, 0 deletions
diff --git a/etc/PROBLEMS b/etc/PROBLEMS
index 1869124987..9e473156a7 100644
--- a/etc/PROBLEMS
+++ b/etc/PROBLEMS
@@ -503,6 +503,12 @@ This can happen with CVS versions 1.12.8 and 1.12.9. Upgrade to CVS
** Miscellaneous problems
+*** Editing files with very long lines is slow.
+
+For example, simply moving through a file that contains hundreds of
+thousands of characters per line is slow, and consumes a lot of CPU.
+This is a known limitation of Emacs with no solution at this time.
+
*** Emacs uses 100% of CPU time
This is a known problem with some versions of the Semantic package.