Message 286757 - Python tracker

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In-reply-to
Author	vstinner
Recipients	methane, python-dev, vstinner, yselivanov
Date	2017年02月02日.10:04:40
SpamBayes Score	-1.0
Marked as misclassified	Yes
Message-id	<1486029880.6.0.296775608496.issue29263@psf.upfronthosting.co.za>

Content
I tried to benchmark b''.decode(encoding='ascii'): CALL_METHOD is not used for this call, but CALL_FUNCTION_KW :-/ So the call is not affected by your patch. I also ran a quick benchmark on loadmethod-methoddescr.patch: b''.decode(): 71.1 ns +- 0.5 ns -> 65.4 ns +- 0.2 ns: 1.09x faster (-8%) b''.decode('utf8'): 92.8 ns +- 0.4 ns -> 85.5 ns +- 0.3 ns: 1.09x faster (-8%) I confirm the speedup.

Content

I tried to benchmark b''.decode(encoding='ascii'): CALL_METHOD is not used for this call, but CALL_FUNCTION_KW :-/ So the call is not affected by your patch.
I also ran a quick benchmark on loadmethod-methoddescr.patch:
b''.decode(): 71.1 ns +- 0.5 ns -> 65.4 ns +- 0.2 ns: 1.09x faster (-8%)
b''.decode('utf8'): 92.8 ns +- 0.4 ns -> 85.5 ns +- 0.3 ns: 1.09x faster (-8%)
I confirm the speedup.

History
Date	User	Action	Args
2017年02月02日 10:04:40	vstinner	set	recipients: + vstinner, methane, python-dev, yselivanov
2017年02月02日 10:04:40	vstinner	set	messageid: <1486029880.6.0.296775608496.issue29263@psf.upfronthosting.co.za>
2017年02月02日 10:04:40	vstinner	link	issue29263 messages
2017年02月02日 10:04:40	vstinner	create

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