Message 297077 - Python tracker

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In-reply-to
Author	vstinner
Recipients	vstinner
Date	2017年06月28日.00:10:40
SpamBayes Score	-1.0
Marked as misclassified	Yes
Message-id	<1498608641.09.0.230211440925.issue30789@psf.upfronthosting.co.za>

Content
Currently, _PyCode_SetExtra() uses two memory block for code extras. Using a different structure, it would be possible to use a single memory block: less memory fragmentation, better CPU cache usage, less indirections, etc. It matters since the long term plan for co_extras is to implement of kind-of JIT compiler insider CPython: see bpo-28158.

Content

Currently, _PyCode_SetExtra() uses two memory block for code extras. Using a different structure, it would be possible to use a single memory block: less memory fragmentation, better CPU cache usage, less indirections, etc.
It matters since the long term plan for co_extras is to implement of kind-of JIT compiler insider CPython: see bpo-28158.

History
Date	User	Action	Args
2017年06月28日 00:10:41	vstinner	set	recipients: + vstinner
2017年06月28日 00:10:41	vstinner	set	messageid: <1498608641.09.0.230211440925.issue30789@psf.upfronthosting.co.za>
2017年06月28日 00:10:40	vstinner	link	issue30789 messages
2017年06月28日 00:10:40	vstinner	create

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