Message 401870 - Python tracker

Message401870

Author	gvanrossum
Recipients	BTaskaya, Mark.Shannon, brandtbucher, brett.cannon, eric.snow, gvanrossum, indygreg, larry, lemburg, methane, miss-islington, nascheme, ncoghlan, ronaldoussoren, shihai1991, terry.reedy
Date	2021-09-15.18:03:07
SpamBayes Score	-1.0
Marked as misclassified	Yes
Message-id	<1631728987.53.0.56433158336.issue45020@roundup.psfhosted.org>
In-reply-to

Content
I would move "default to "on" (except if actually running out of the source tree)" to the "maybe" category. I left a few comments in other deps. I think we should start by turning this on by default in PGO builds. Separately, I encourage you to collect reliable performance numbers. It would be nice to see a dip on speed.python.org for this benchmark: https://speed.python.org/timeline/#/?exe=12&ben=python_startup&env=1&revs=50&equid=off&quarts=on&extr=on (but that won't show up until we turn this on by default for PGO builds).

Content

I would move "default to "on" (except if actually running out of the source tree)" to the "maybe" category. I left a few comments in other deps. I think we should start by turning this on by default in PGO builds.

Separately, I encourage you to collect reliable performance numbers. It would be nice to see a dip on speed.python.org for this benchmark:

https://speed.python.org/timeline/#/?exe=12&ben=python_startup&env=1&revs=50&equid=off&quarts=on&extr=on

(but that won't show up until we turn this on by default for PGO builds).

History
Date	User	Action	Args
2021-09-15 18:03:07	gvanrossum	set	recipients: + gvanrossum, lemburg, brett.cannon, nascheme, terry.reedy, ronaldoussoren, ncoghlan, larry, methane, Mark.Shannon, eric.snow, indygreg, miss-islington, brandtbucher, BTaskaya, shihai1991
2021-09-15 18:03:07	gvanrossum	set	messageid: <1631728987.53.0.56433158336.issue45020@roundup.psfhosted.org>
2021-09-15 18:03:07	gvanrossum	link	issue45020 messages
2021-09-15 18:03:07	gvanrossum	create