[issue19780] Pickle 4 frame headers optimization

[Serhiy Storchaka]

New submission from Serhiy Storchaka:

Here is a patch which restores (removed at last moment before 3.4beta1 release) frame headers optimization for the pickle protocol 4. Frame header now saved as a part of previous frame. This decreases the number of unbuffered reads per frame from 3 to 1.

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components: Library (Lib)
files: pickle_frame_headers.patch
keywords: patch
messages: 204424
nosy: alexandre.vassalotti, larry, pitrou, serhiy.storchaka
priority: normal
severity: normal
stage: patch review
status: open
title: Pickle 4 frame headers optimization
type: performance
versions: Python 3.4
Added file: http://bugs.python.org/file32843/pickle_frame_headers.patch

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue19780>
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