Message 308351 - Python tracker

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Author	vstinner
Recipients	gvanrossum, levkivskyi, serhiy.storchaka, vstinner, xgdomingo
Date	2017-12-15.00:12:29
SpamBayes Score	-1.0
Marked as misclassified	Yes
Message-id	<1513296749.86.0.213398074469.issue32226@psf.upfronthosting.co.za>
In-reply-to

Content
It is very to get stable benchmarks with timings shorter than 1 ms, and even harder for timings shorter than 1 us. I wrote documentation to implement how to get more stable results: http://perf.readthedocs.io/en/latest/run_benchmark.html#how-to-get-reproductible-benchmark-results On Linux, using CPU isolation helps a lot, and perf uses automatically isolated CPUs.

It is very to get stable benchmarks with timings shorter than 1 ms, and even harder for timings shorter than 1 us.

I wrote documentation to implement how to get more stable results:
http://perf.readthedocs.io/en/latest/run_benchmark.html#how-to-get-reproductible-benchmark-results

On Linux, using CPU isolation helps a lot, and perf uses automatically isolated CPUs.

History
Date	User	Action	Args
2017-12-15 00:12:29	vstinner	set	recipients: + vstinner, gvanrossum, serhiy.storchaka, levkivskyi, xgdomingo
2017-12-15 00:12:29	vstinner	set	messageid: <1513296749.86.0.213398074469.issue32226@psf.upfronthosting.co.za>
2017-12-15 00:12:29	vstinner	link	issue32226 messages
2017-12-15 00:12:29	vstinner	create