[issue26315] Optimize mod division for ints

2016-02-11 Thread Roundup Robot 

Roundup Robot added the comment:

New changeset 37bacf3fa1f5 by Yury Selivanov in branch 'default':
Issues #26289 and #26315: Optimize floor/modulo div for single-digit longs
https://hg.python.org/cpython/rev/37bacf3fa1f5

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[issue26315] Optimize mod division for ints

2016-02-11 Thread Yury Selivanov 

Changes by Yury Selivanov :


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resolution:  -> fixed
stage: patch review -> resolved
status: open -> closed

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[issue26315] Optimize mod division for ints

2016-02-10 Thread STINNER Victor 

STINNER Victor added the comment:

Is this patch is a subset of issue #26289 patch?

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[issue26315] Optimize mod division for ints

2016-02-09 Thread Mark Dickinson 

Changes by Mark Dickinson :


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nosy: +mark.dickinson

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[issue26315] Optimize mod division for ints

2016-02-08 Thread STINNER Victor 

STINNER Victor added the comment:

See also issue #21955.

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[issue26315] Optimize mod division for ints

2016-02-08 Thread Yury Selivanov 

New submission from Yury Selivanov:

The attached patch implements fast path for modulo division of single digit 
longs.

Some timeit micro-benchmarks: 

-m timeit -s "x=22331" "x%2;x%3;x%4;x%5;x%6;x%7;x%8;x%99;x%100;"
with patch: 0.213 usec
without patch: 0.602 usec

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assignee: yselivanov
components: Interpreter Core
files: mod_div.patch
keywords: patch
messages: 259897
nosy: haypo, serhiy.storchaka, yselivanov
priority: normal
severity: normal
stage: patch review
status: open
title: Optimize mod division for ints
type: performance
versions: Python 3.6
Added file: http://bugs.python.org/file41861/mod_div.patch

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