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Eliminate a duplicate entry.

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Raymond Hettinger 2009-04-04 12:46:57 +00:00
parent 3fa0fb4e51
commit 2a0277703e
1 changed files with 4 additions and 9 deletions
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Doc/whatsnew/3.1.rst
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@ -262,12 +262,6 @@ Major performance enhancements have been added:
(Contributed by Amaury Forgeot d'Arc and Antoine Pitrou.) (Contributed by Amaury Forgeot d'Arc and Antoine Pitrou.)
* A new configure flag, ``--with-computed-gotos``, enables a faster opcode
dispatch mechanism on compilers which support it. Speedups of up to 20%
have been observed, depending on the system and compiler.
(Contributed by Antoine Pitrou, :issue:`4753`.)
* Add a heuristic so that tuples and dicts containing only untrackable objects * Add a heuristic so that tuples and dicts containing only untrackable objects
are not tracked by the garbage collector. This can reduce the size of are not tracked by the garbage collector. This can reduce the size of
collections and therefore the garbage collection overhead on long-running collections and therefore the garbage collection overhead on long-running
@ -278,10 +272,11 @@ Major performance enhancements have been added:
* Enabling a configure option named ``--with-computed-gotos`` * Enabling a configure option named ``--with-computed-gotos``
on compilers that support it (notably: gcc, SunPro, icc), the bytecode on compilers that support it (notably: gcc, SunPro, icc), the bytecode
evaluation loop is compiled with a new dispatch mechanism which gives evaluation loop is compiled with a new dispatch mechanism which gives
speedups of up to 20%, depending on the system, on various benchmarks. speedups of up to 20%, depending on the system, the compiler, and
the benchmark.
(Contributed by Antoine Pitrou and Jeffrey Yasskin along with a number (Contributed by Antoine Pitrou along with a number of other participants,
of other participants, :issue:`4753`). :issue:`4753`).
* The decoding of UTF-8, UTF-16 and LATIN-1 is now two to four times * The decoding of UTF-8, UTF-16 and LATIN-1 is now two to four times
faster. faster.