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| author | Paul Eggert <eggert@cs.ucla.edu> | 2016-10-25 21:57:56 -0700 |
|---|---|---|
| committer | Paul Eggert <eggert@cs.ucla.edu> | 2016-10-25 21:58:31 -0700 |
| commit | 68b82f6f8419a815cfcf962b3061352d414dc606 (patch) | |
| tree | 2b40c7be3eecaeed747b5247965b76b4eac11151 /NEWS | |
| parent | 571f01c069dfc7f860e5500a5d08ebfdaf9c3068 (diff) | |
| download | diffutils-68b82f6f8419a815cfcf962b3061352d414dc606.tar.gz | |
diff: fix big performance degradation in 3.4
* NEWS, doc/diffutils.texi (Overview): Document this.
* src/analyze.c (diff_2_files): Restore too_expensive heuristic,
but this time with a floor that is 16 times the old floor. This
should fix Bug#16848, by generating good-quality output for its
test case, while not introducing Bug#24715, by running nearly as
fast as diff-3.3 for that test case.
Diffstat (limited to 'NEWS')
| -rw-r--r-- | NEWS | 5 |
1 files changed, 5 insertions, 0 deletions
@@ -6,6 +6,11 @@ GNU diffutils NEWS -*- outline -*- diff no longer mishandles line numbers exceeding 2**31 on Mingw-w64. +** Performance changes + + diff's default algorithm has been tweaked to deal better with larger + files, reversing some of the changes made in diffutils-3.4. + * Noteworthy changes in release 3.5 (2016-08-20) [stable] |