[issue14654] Faster utf-8 decoding
Changes by Éric Araujo mer...@netwok.org: -- nosy: +eric.araujo ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue14654 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue14654] Faster utf-8 decoding
Serhiy Storchaka storch...@gmail.com added the comment: See issue14738 for advanced optimization. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue14654 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue14654] Faster utf-8 decoding
Jesús Cea Avión j...@jcea.es added the comment: I understand Martin point, but I think 95% of issues in the bugtracker are work in progress, mine included. Maybe the issue is that Serhiy hasn't made a concrete proposal to be tested integrated. It seems to be more an exploratory work. I am in the nosy list because I am interested in this work. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue14654 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue14654] Faster utf-8 decoding
Serhiy Storchaka storch...@gmail.com added the comment: Martin, sorry to have wasted your time. I understand that you are busy, so I'm not too worried not receiving a feedback for ten days. At this point, it appears that you don't intend to submit any of these patches for inclusion into Python. I'm at a loss. What causes such an impression? I quickly reacting to the comments, responding by the new patches. I take into account your comments, and if I do not agree, reinforce my opinion by the benchmarks. I suggest only cleaned and well-tested code. I provide tools for benchmarking. What am I doing wrong? May be my bad English has been misunderstood? -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue14654 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue14654] Faster utf-8 decoding
Serhiy Storchaka storch...@gmail.com added the comment: Well, it seems, 64-bit processors are smart enough to not feel the need for this optimization. On 32-bit platforms I see a noticeable increase in speed. I am now working on a more advanced optimization, which now shows a gain of +20-60% compared with the previous patches, but I hope to increase a gain by +50%-100%. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue14654 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue14654] Faster utf-8 decoding
Martin v. Löwis mar...@v.loewis.de added the comment: I'll be closing this issue at this point. Serhiy: I don't think the bug tracker should be used to evolve work in progress (except when responding to reviews received). Use a Mercurial clone for that instead. By posting a patch here, you are requesting that it be reviewed and considered - please understand that you consume a lot of people's time by such a posting. At this point, it appears that you don't intend to submit any of these patches for inclusion into Python. If you ever do want to contribute something in this area, please create a new issue. -- resolution: - rejected status: open - closed ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue14654 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue14654] Faster utf-8 decoding
Antoine Pitrou pit...@free.fr added the comment: I'll be closing this issue at this point. Serhiy: I don't think the bug tracker should be used to evolve work in progress (except when responding to reviews received). Use a Mercurial clone for that instead. By posting a patch here, you are requesting that it be reviewed and considered - please understand that you consume a lot of people's time by such a posting. That's not very nice. If Serhiy wants feedback on his work, he definitely has to post *somewhere*. The bug tracker sounds like a reasonable place (certainly more reasonable than python-dev). -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue14654 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue14654] Faster utf-8 decoding
Martin v. Löwis mar...@v.loewis.de added the comment: That's not very nice. If Serhiy wants feedback on his work, he definitely has to post *somewhere*. The bug tracker sounds like a reasonable place (certainly more reasonable than python-dev). I completely disagree (and I really tried to be nice). It is my utmost belief that the tracker must not be used for work-in-progress. For any open issue, numerous people review the issue, and even if they spend only a few minutes, this easily adds up to a lot of wasted time if there isn't anything to be done about an issue. OTOH, discussing it on python-dev indeed seems more appropriate: even though the readership is larger, people know that they can safely skip over messages that clearly don't need their attention. So if Serhiy posts a message titled UTF-8 performance, people will hit the delete button very quickly if they are not interested. However, it would really be best in this case if Serhiy takes a step back, and analyzes the performance of the current decoder carefully, then proposes a patch which undoubtedly improves the performance and is meanwhile also maintainable. He may come to the conclusion that further improvement isn't really possible or reasonable, in which case it would be good if he posted his findings to python-dev. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue14654 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue14654] Faster utf-8 decoding
Serhiy Storchaka storch...@gmail.com added the comment: title: More fast utf-8 decoding - Faster utf-8 decoding Éric, there is already an issue (#4868) with this title. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue14654 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue14654] Faster utf-8 decoding
Martin v. Löwis mar...@v.loewis.de added the comment: There is nothing wrong with two issues having the same title. Of course, it would be best if the title reflected the *actual* defect or change, such as specialize UTF-8 decoding by character width, or some such. In any case, the title change is desirable since the original title was ungrammatical. If you wanted to point out that this really is an augmented, escalated rise, then Even faster utf-8 decoded, amazingly faster UTF-8 decoding, or unbelievably faster utf-8 decoding could have worked :-) -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue14654 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue14654] Faster utf-8 decoding
Serhiy Storchaka storch...@gmail.com added the comment: Thank you, Martin, this is what I had in mind. Lost in translation. ;) -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue14654 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue14654] Faster utf-8 decoding
Antoine Pitrou pit...@free.fr added the comment: 64-bit Linux, Intel Core i5-2500K CPU @ 3.30GHz: vanilla 3.3 patch 2 patch 3 utf-8 'A'*1 6931 (+3%)7115 (+0%) 7117 utf-8 'A'*+'\x80' 2347 (+1%)2410 (-2%) 2360 utf-8 'A'*+'\u0100' 2279 (+1%)2282 (+1%) 2310 utf-8 'A'*+'\u8000' 2264 (+2%)2275 (+1%) 2300 utf-8 'A'*+'\U0001' 2351 (+0%)2283 (+3%) 2359 utf-8 '\x80'*1516 (+8%) 558 (+0%) 559 utf-8 '\x80'+'A'* 859 (+0%) 868 (-1%) 860 utf-8 '\x80'*+'\u0100'526 (+6%) 558 (+0%) 558 utf-8 '\x80'*+'\u8000'535 (+4%) 558 (+0%) 558 utf-8 '\x80'*+'\U0001'525 (+6%) 559 (-0%) 558 utf-8 '\u0100'*1 517 (+6%) 548 (+0%) 548 utf-8 '\u0100'+'A'* 818 (+0%) 820 (+0%) 821 utf-8 '\u0100'+'\x80'* 517 (+6%) 548 (+0%) 548 utf-8 '\u0100'*+'\u8000' 525 (+4%) 548 (+0%) 548 utf-8 '\u0100'*+'\U0001' 517 (+6%) 549 (+0%) 549 utf-8 '\u8000'*1 490 (-8%) 433 (+4%) 451 utf-8 '\u8000'+'A'* 818 (+0%) 819 (+0%) 821 utf-8 '\u8000'+'\x80'* 529 (+4%) 548 (+0%) 548 utf-8 '\u8000'+'\u0100'*529 (+4%) 548 (+0%) 548 utf-8 '\u8000'*+'\U0001' 470 (-4%) 451 (+0%) 451 utf-8 '\U0001'*1 554 (-18%)427 (+6%) 453 utf-8 '\U0001'+'A'* 938 (+0%) 927 (+2%) 941 utf-8 '\U0001'+'\x80'* 572 (+4%) 595 (+0%) 595 utf-8 '\U0001'+'\u0100'*571 (+4%) 595 (+0%) 595 utf-8 '\U0001'+'\u8000'*503 (-4%) 481 (+0%) 482 -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue14654 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue14654] Faster utf-8 decoding
Changes by Éric Araujo mer...@netwok.org: -- title: More fast utf-8 decoding - Faster utf-8 decoding ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue14654 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
