STINNER Victor <[email protected]> added the comment:
Sorted and grouped results. "replace", "find" and "concat" should be easy to
fix, "format" is a little bit more complex, "strip" and "split" depends on
"find" performance and require to scan the substring to ensure that the result
is canonical (except if inputs are all ASCII, which is the case in these
examples).
replace:
- "...text.with.2000.lines...replace("\n", " ") (*10): -37.668161%
- "...text.with.2000.lines...replace("\n", " ") (*10): -37.668161%
find:
- ("A"*1000).find("B") (*1000): -30.379747%
- "Andrew"+"Dalke" (*1000): -23.076923%- ("A"*1000).find("B") (*1000):
-30.379747%
- "Andrew".startswith("A") (*1000): -20.588235%
- "Andrew".startswith("Anders") (*1000): -23.529412%
- "Andrew".startswith("A") (*1000): -20.588235%
- "Andrew".startswith("Anders") (*1000): -23.529412%
- "Andrew".endswith("w") (*1000): -23.529412%
- "Andrew".endswith("Andrew") (*1000): -22.857143%
- "Andrew".endswith("Anders") (*1000): -23.529412%
- "Andrew".endswith("w") (*1000): -23.529412%
- "Andrew".endswith("Andrew") (*1000): -22.857143%
- "Andrew".endswith("Anders") (*1000): -23.529412%
- "B" in "A"*1000 (*1000): -32.089552%
- "B" in "A"*1000 (*1000): -32.089552%
concat:
- "Andrew"+"Dalke" (*1000): -23.076923%
format:
- "The %(k1)s is %(k2)s the %(k3)s."%{"k1":"x","k2":"y","k3":"z",} (*1000):
-49.411765%
- "The %(k1)s is %(k2)s the %(k3)s."%{"k1":"x","k2":"y","k3":"z",} (*1000):
-49.411765%
strip:
- "\nHello!\n".strip() (*1000): -33.333333%
- "Hello!\n".strip() (*1000): -35.714286%
- "\nHello!".strip() (*1000): -28.571429%
- "\nHello!\n".strip() (*1000): -33.333333%
- "Hello!\n".strip() (*1000): -35.714286%
- "\nHello!".strip() (*1000): -28.571429%
- "Hello\t \t".rstrip() (*1000): -33.333333%
- "\t \tHello".rstrip() (*1000): -33.333333%
- "Hello!\n".rstrip() (*1000): -35.714286%
- "\nHello!".rstrip() (*1000): -35.714286%
- "Hello\t \t".rstrip() (*1000): -33.333333%
- "\t \tHello".rstrip() (*1000): -33.333333%
- "Hello!\n".rstrip() (*1000): -35.714286%
- "\nHello!".rstrip() (*1000): -35.714286%
split:
- dna.split("ACTAT") (*10): -21.066667%
- ("Here are some words. "*2).split() (*1000): -22.105263%
- "this\nis\na\ntest\n".split("\n") (*1000): -23.437500%
- "this--is--a--test--of--the--emergency--broadcast--system".split("--")
(*1000): -22.429907%
- dna.split("ACTAT") (*10): -21.066667%
- ("Here are some words. "*2).split() (*1000): -22.105263%
- "this\nis\na\ntest\n".split("\n") (*1000): -23.437500%
- "this--is--a--test--of--the--emergency--broadcast--system".split("--")
(*1000): -22.429907%
- "this\nis\na\ntest\n".rsplit("\n") (*1000): -23.437500%
- "this\nis\na\ntest\n".rsplit("\n") (*1000): -23.437500%
- ("A"*1000).rpartition("A") (*1000): -21.212121%
- ("A"*1000).rpartition("A") (*1000): -21.212121%
----------
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Python tracker <[email protected]>
<http://bugs.python.org/issue13621>
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