Message 291892 - Python tracker

Message291892

Author	gut
Recipients	christian.heimes, gut
Date	2017-04-19.18:16:07
SpamBayes Score	-1.0
Marked as misclassified	Yes
Message-id	<1492625768.04.0.0441991699383.issue30102@psf.upfronthosting.co.za>
In-reply-to

Content
To correctly pick the best algorithm for the current architecture, libssl needs to have OPENSSL_config(NULL) called as described on: https://wiki.openssl.org/index.php/Libcrypto_API This short change lead to a speedup of 50% on POWER8 when using hashlib.sha256 digest functionality as it now uses a SIMD approach that was already existing but not used by cpython.

Content

To correctly pick the best algorithm for the current architecture,
libssl needs to have OPENSSL_config(NULL) called as described on:
https://wiki.openssl.org/index.php/Libcrypto_API

This short change lead to a speedup of 50% on POWER8 when using
hashlib.sha256 digest functionality as it now uses a SIMD approach that was already existing but not used by cpython.

History
Date	User	Action	Args
2017-04-19 18:16:08	gut	set	recipients: + gut, christian.heimes
2017-04-19 18:16:08	gut	set	messageid: <1492625768.04.0.0441991699383.issue30102@psf.upfronthosting.co.za>
2017-04-19 18:16:07	gut	link	issue30102 messages
2017-04-19 18:16:07	gut	create