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| author | Raymond Hettinger <python@rcn.com> | 2004-03-08 07:25:05 (GMT) |
|---|---|---|
| committer | Raymond Hettinger <python@rcn.com> | 2004-03-08 07:25:05 (GMT) |
| commit | b7d05db0beacb9f24300d5fa26b14c3f73d6c622 (patch) | |
| tree | 7e2c7f591d047fdd057b25dcff149f6e78f38e60 /Doc/whatsnew | |
| parent | f0e3569a28bc25cc3a6b267614b9724d8fe01a0e (diff) | |
| download | cpython-b7d05db0beacb9f24300d5fa26b14c3f73d6c622.zip cpython-b7d05db0beacb9f24300d5fa26b14c3f73d6c622.tar.gz cpython-b7d05db0beacb9f24300d5fa26b14c3f73d6c622.tar.bz2 | |
Optimize tuple_slice() and make further improvements to list_slice()
and list.extend(). Factoring the inner loops to remove the constant
structure references and fixed offsets gives speedups ranging from
20% to 30%.
Diffstat (limited to 'Doc/whatsnew')
| -rw-r--r-- | Doc/whatsnew/whatsnew24.tex | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/Doc/whatsnew/whatsnew24.tex b/Doc/whatsnew/whatsnew24.tex index 2a323ff..1607cc7 100644 --- a/Doc/whatsnew/whatsnew24.tex +++ b/Doc/whatsnew/whatsnew24.tex @@ -263,6 +263,9 @@ yellow 5 \begin{itemize} +\item The inner loops for \class{list} and \class{tuple} slicing + were optimized and now run about one-third faster. + \item The machinery for growing and shrinking lists was optimized for speed and for space efficiency. Small lists (under eight elements) never over-allocate by more than three elements. Large lists do not |