Message 329558 - Python tracker

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Author	taleinat
Recipients	rhettinger, taleinat, terry.reedy
Date	2018-11-09.21:09:08
SpamBayes Score	-1.0
Marked as misclassified	Yes
Message-id	<1541797748.67.0.788709270274.issue35196@psf.upfronthosting.co.za>
In-reply-to

Content
> On my machine, 2.7.15 (without squeezing) and 3.7.1 (with squeezing) IDLE results (average seconds). > > from timeit import timeit > timeit("print('nnn '500)", number=10) # Exp1: .0357, .0355 > timeit("for i in range(500): print(i)", number=4) # Exp2: 1.45, 1.70 > timeit("print(range(500))", number=4) # Exp3: about 5*, 4.85 Comparing 3.7.0 to current master, I'm seeing about a 4% slowdown on the second experiment. That's significant, but probably not what Raymond or Serhiy are worried about. Regardless, I've nearly got a PR with an optimization ready.

> On my machine, 2.7.15 (without squeezing) and 3.7.1 (with squeezing) IDLE results (average seconds).
>
> from timeit import timeit
> timeit("print('nnn '*500)", number=10)  # Exp1: .0357, .0355
> timeit("for i in range(500): print(i)", number=4)  # Exp2: 1.45, 1.70
> timeit("print(*range(500))", number=4)  # Exp3: about 5*, 4.85

Comparing 3.7.0 to current master, I'm seeing about a 4% slowdown on the second experiment.  That's significant, but probably not what Raymond or Serhiy are worried about.  Regardless, I've nearly got a PR with an optimization ready.

History
Date	User	Action	Args
2018-11-09 21:09:08	taleinat	set	recipients: + taleinat, rhettinger, terry.reedy
2018-11-09 21:09:08	taleinat	set	messageid: <1541797748.67.0.788709270274.issue35196@psf.upfronthosting.co.za>
2018-11-09 21:09:08	taleinat	link	issue35196 messages
2018-11-09 21:09:08	taleinat	create