Hello, Le 01/03/2017 à 18:51, Antoine Pitrou a écrit : > On Wed, 1 Mar 2017 12:28:24 -0500 > Barry Warsaw <ba...@python.org> wrote: >> >> Louis (Cc'd here) has done a ton of work to measure and analyze the problem, >> but we've more or less hit a roadblock, so we're taking the issue public to >> see if anybody on this mailing list has further ideas. A detailed analysis >> is >> available in this Google doc: >> >> https://docs.google.com/document/d/1zrV3OIRSo99fd2Ty4YdGk_scmTRDmVauBprKL8eij6w/edit >> >> The document should be public for comments and editing. > > I may be misunderstanding the document, but this lacks at least a > comparison of the *same* interpreter version with different compiler > versions. > > As for the high level: what if the training set used for PGO in Xenial > has become skewed or inadequate? Just a thought, as it would imply > that PGO+LTO uses wrong information for code placement and other > optimizations. > > Regards > > Antoine. >
Indeed, this is something that is in the history of the LP bug so here is the URL where those comparison can be found : https://docs.google.com/spreadsheets/d/1MyNBPVZlBeic1OLqVKe_bcPk2deO_pQs9trIfOFefM0/edit#gid=2034603487 Hope it can help, Kind regards, ...Louis -- Louis Bouchard Software engineer, Cloud & Sustaining eng. Canonical Ltd Ubuntu developer Debian Maintainer GPG : 429D 7A3B DD05 B6F8 AF63 B9C4 8B3D 867C 823E 7A61 _______________________________________________ Python-Dev mailing list Python-Dev@python.org https://mail.python.org/mailman/listinfo/python-dev Unsubscribe: https://mail.python.org/mailman/options/python-dev/archive%40mail-archive.com