[Python-Dev] OS-X builds for 3.7.0 (original) (raw)

Steve Holden steve at holdenweb.com
Wed Jan 31 10:08:52 EST 2018

The horizontal axis labelling in that graph is useless with so many tests included!

Would a graphic with hover labels over the bars be more useful?

Steve Holden

On Wed, Jan 31, 2018 at 1:06 PM, Victor Stinner <victor.stinner at gmail.com> wrote:

There is https://speed.python.org/comparison/ to compare Python 2.7, 3.5, 3.6 and master (future 3.7).

Victor Le 31 janv. 2018 13:14, "Ray Donnelly" <mingw.android at gmail.com> a écrit :

On Wed, Jan 31, 2018 at 11:16 AM, Joni Orponen <j.orponen at 4teamwork.ch> wrote: > On Wed, Jan 31, 2018 at 9:31 AM, Ray Donnelly <mingw.android at gmail.com> > wrote: >> >> We see a 1.1 to 1.2 times performance benefit over official releases as >> measured using 'python performance'. >> >> Apart from a static interpreter we also enable LTO and PGO and only build >> for 64-bit so I'm not sure how much each bit continues. Our recipe for >> python 3.6 can be found at: > > > Do you metrify LTO and PGO independent of each other as well or only the > "enable everything" combo? I've had mixed results with LTO so far, but this > is probably hardware / compiler combination specific.

I've never found enough time to take detailed metrics, sorry. Maybe one day? Looking at my performance graphs again: Against the official CPython 3.6 (probably .3 or .4) release I see: 1 that is 2.01x faster (python-startup, 24.6ms down to 12.2ms) 5 that are >=1.5x,<1.6x faster._ _13 that are >=1.4x,<1.5x faster._ _21 that are >=1.3x,<1.4x faster._ _14 that are >=1.2x,<1.3x faster._ _5 that are >=1.1x,<1.2x faster. 0 that are < 1.1x faster/slower. Pretty good numbers overall I think.

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