Message 280846 - Python tracker

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Author	vstinner
Recipients	methane, pitrou, python-dev, serhiy.storchaka, vstinner, yselivanov
Date	2016-11-15.14:21:56
SpamBayes Score	-1.0
Marked as misclassified	Yes
Message-id	<1479219717.6.0.12321709438.issue28618@psf.upfronthosting.co.za>
In-reply-to

Content
hot3.patch: Mark additional functions as hot * PyNumber_AsSsize_t() * _PyUnicode_FromUCS1() * json: scanstring_unicode() * siphash24() * sre_ucs1_match, sre_ucs2_match, sre_ucs4_match I'm not sure about this patch. It's hard to get reliable benchmark results on microbenchmarks :-/ It's hard to understand if a speedup comes from the hot attribute, or if the compiler decided itself to change the code placement. Without the hot attribute, the code placement seems random.

hot3.patch: Mark additional functions as hot

* PyNumber_AsSsize_t()
* _PyUnicode_FromUCS1()
* json: scanstring_unicode()
* siphash24()
* sre_ucs1_match, sre_ucs2_match, sre_ucs4_match

I'm not sure about this patch. It's hard to get reliable benchmark results on microbenchmarks :-/ It's hard to understand if a speedup comes from the hot attribute, or if the compiler decided itself to change the code placement. Without the hot attribute, the code placement seems random.

History
Date	User	Action	Args
2016-11-15 14:21:57	vstinner	set	recipients: + vstinner, pitrou, methane, python-dev, serhiy.storchaka, yselivanov
2016-11-15 14:21:57	vstinner	set	messageid: <1479219717.6.0.12321709438.issue28618@psf.upfronthosting.co.za>
2016-11-15 14:21:57	vstinner	link	issue28618 messages
2016-11-15 14:21:56	vstinner	create