➜

This issue tracker has been migrated to GitHub, and is currently read-only.
For more information, see the GitHub FAQs in the Python's Developer Guide.

Author serhiy.storchaka
Recipients Arfrever, asvetlov, pitrou, serhiy.storchaka, vstinner
Date 2012-04-23.21:01:39
SpamBayes Score -1.0
Marked as misclassified Yes
Message-id <1335214152.3101.241.camel@raxxla>
In-reply-to <1334869197.32.0.159275934867.issue14625@psf.upfronthosting.co.za>
Content 
Here are the results of benchmarking (numbers in MB/s).

On 32-bit Linux, AMD Athlon 64 X2 4600+ @ 2.4GHz:

                                          Py2.7         Py3.2         Py3.3         patchA       patchB

utf-32le  'A'*10000                       461 (+215%)   454 (+220%)   292 (+398%)   1213 (+20%)   1454
utf-32le  '\x80'*10000                    458 (+177%)   454 (+180%)   271 (+369%)   1124 (+13%)   1270
utf-32le    '\x80'+'A'*9999               462 (+171%)   454 (+175%)   271 (+361%)   1111 (+13%)   1250
utf-32le  '\u0100'*10000                  457 (+133%)   454 (+135%)   220 (+385%)   1002 (+6%)    1067
utf-32le    '\u0100'+'A'*9999             461 (+129%)   454 (+132%)   220 (+379%)   993 (+6%)     1054
utf-32le    '\u0100'+'\x80'*9999          458 (+131%)   454 (+133%)   220 (+381%)   1002 (+6%)    1059
utf-32le  '\u8000'*10000                  457 (+133%)   454 (+135%)   220 (+385%)   1002 (+6%)    1066
utf-32le    '\u8000'+'A'*9999             462 (+128%)   454 (+132%)   220 (+379%)   994 (+6%)     1053
utf-32le    '\u8000'+'\x80'*9999          457 (+132%)   454 (+134%)   220 (+382%)   1000 (+6%)    1061
utf-32le    '\u8000'+'\u0100'*9999        457 (+132%)   454 (+134%)   220 (+382%)   1002 (+6%)    1061
utf-32le  '\U00010000'*10000              386 (+167%)   416 (+148%)   212 (+386%)   930 (+11%)    1031
utf-32le    '\U00010000'+'A'*9999         461 (+126%)   415 (+152%)   222 (+370%)   940 (+11%)    1044
utf-32le    '\U00010000'+'\x80'*9999      458 (+125%)   415 (+148%)   222 (+364%)   930 (+11%)    1031
utf-32le    '\U00010000'+'\u0100'*9999    458 (+125%)   415 (+148%)   212 (+386%)   930 (+11%)    1031
utf-32le    '\U00010000'+'\u8000'*9999    458 (+125%)   415 (+149%)   222 (+365%)   930 (+11%)    1032

utf-32be  'A'*10000                       461 (+216%)   454 (+221%)   292 (+399%)   1209 (+20%)   1456
utf-32be  '\x80'*10000                    457 (+177%)   454 (+179%)   271 (+368%)   1125 (+13%)   1268
utf-32be    '\x80'+'A'*9999               462 (+171%)   453 (+176%)   271 (+362%)   1112 (+12%)   1251
utf-32be  '\u0100'*10000                  457 (+144%)   453 (+146%)   220 (+407%)   1048 (+6%)    1116
utf-32be    '\u0100'+'A'*9999             462 (+139%)   454 (+143%)   220 (+402%)   1034 (+7%)    1104
utf-32be    '\u0100'+'\x80'*9999          459 (+142%)   453 (+145%)   220 (+405%)   1047 (+6%)    1112
utf-32be  '\u8000'*10000                  457 (+144%)   453 (+147%)   220 (+408%)   1046 (+7%)    1117
utf-32be    '\u8000'+'A'*9999             462 (+139%)   454 (+143%)   220 (+402%)   1034 (+7%)    1104
utf-32be    '\u8000'+'\x80'*9999          459 (+142%)   453 (+145%)   220 (+405%)   1045 (+6%)    1112
utf-32be    '\u8000'+'\u0100'*9999        459 (+142%)   454 (+144%)   220 (+404%)   1047 (+6%)    1109
utf-32be  '\U00010000'*10000              386 (+155%)   416 (+137%)   212 (+364%)   940 (+5%)     984
utf-32be    '\U00010000'+'A'*9999         461 (+116%)   415 (+140%)   213 (+367%)   948 (+5%)     994
utf-32be    '\U00010000'+'\x80'*9999      458 (+115%)   415 (+137%)   222 (+343%)   938 (+5%)     983
utf-32be    '\U00010000'+'\u0100'*9999    458 (+115%)   415 (+137%)   212 (+364%)   940 (+5%)     983
utf-32be    '\U00010000'+'\u8000'*9999    458 (+115%)   415 (+137%)   222 (+343%)   939 (+5%)     983

On 32-bit Linux, Intel Atom N570 @ 1.66GHz:

                                          Py2.7         Py3.2         Py3.3         patchA       patchB

utf-32le  'A'*10000                       165 (+173%)   165 (+173%)   100 (+350%)   389 (+16%)    450
utf-32le  '\x80'*10000                    165 (+159%)   165 (+159%)   76 (+462%)    374 (+14%)    427
utf-32le    '\x80'+'A'*9999               165 (+161%)   165 (+161%)   76 (+466%)    374 (+15%)    430
utf-32le  '\u0100'*10000                  165 (+119%)   165 (+119%)   81 (+346%)    333 (+8%)     361
utf-32le    '\u0100'+'A'*9999             165 (+120%)   165 (+120%)   81 (+348%)    334 (+9%)     363
utf-32le    '\u0100'+'\x80'*9999          165 (+119%)   165 (+119%)   81 (+347%)    334 (+8%)     362
utf-32le  '\u8000'*10000                  165 (+119%)   165 (+119%)   80 (+352%)    333 (+9%)     362
utf-32le    '\u8000'+'A'*9999             165 (+119%)   165 (+119%)   81 (+347%)    334 (+8%)     362
utf-32le    '\u8000'+'\x80'*9999          165 (+119%)   165 (+119%)   81 (+347%)    334 (+8%)     362
utf-32le    '\u8000'+'\u0100'*9999        165 (+118%)   165 (+118%)   81 (+343%)    333 (+8%)     359
utf-32le  '\U00010000'*10000              155 (+130%)   151 (+136%)   80 (+346%)    324 (+10%)    357
utf-32le    '\U00010000'+'A'*9999         165 (+117%)   165 (+117%)   80 (+348%)    325 (+10%)    358
utf-32le    '\U00010000'+'\x80'*9999      165 (+118%)   165 (+118%)   80 (+349%)    325 (+10%)    359
utf-32le    '\U00010000'+'\u0100'*9999    165 (+116%)   165 (+116%)   80 (+346%)    324 (+10%)    357
utf-32le    '\U00010000'+'\u8000'*9999    165 (+117%)   165 (+117%)   80 (+348%)    324 (+10%)    358

utf-32be  'A'*10000                       165 (+172%)   165 (+172%)   100 (+348%)   390 (+15%)    448
utf-32be  '\x80'*10000                    165 (+159%)   165 (+159%)   75 (+469%)    373 (+14%)    427
utf-32be    '\x80'+'A'*9999               165 (+160%)   165 (+160%)   75 (+472%)    375 (+14%)    429
utf-32be  '\u0100'*10000                  165 (+119%)   165 (+119%)   81 (+347%)    334 (+8%)     362
utf-32be    '\u0100'+'A'*9999             165 (+120%)   165 (+120%)   81 (+348%)    335 (+8%)     363
utf-32be    '\u0100'+'\x80'*9999          165 (+119%)   165 (+119%)   81 (+347%)    335 (+8%)     362
utf-32be  '\u8000'*10000                  165 (+119%)   165 (+119%)   81 (+347%)    334 (+8%)     362
utf-32be    '\u8000'+'A'*9999             165 (+120%)   165 (+120%)   81 (+348%)    334 (+9%)     363
utf-32be    '\u8000'+'\x80'*9999          165 (+119%)   165 (+119%)   81 (+347%)    335 (+8%)     362
utf-32be    '\u8000'+'\u0100'*9999        165 (+118%)   165 (+118%)   81 (+344%)    335 (+7%)     360
utf-32be  '\U00010000'*10000              155 (+130%)   151 (+136%)   80 (+346%)    324 (+10%)    357
utf-32be    '\U00010000'+'A'*9999         165 (+117%)   165 (+117%)   80 (+348%)    325 (+10%)    358
utf-32be    '\U00010000'+'\x80'*9999      165 (+118%)   165 (+118%)   80 (+349%)    325 (+10%)    359
utf-32be    '\U00010000'+'\u0100'*9999    165 (+117%)   165 (+117%)   80 (+348%)    324 (+10%)    358
utf-32be    '\U00010000'+'\u8000'*9999    165 (+117%)   165 (+117%)   80 (+348%)    325 (+10%)    358

For scripts see issue14624.
History
Date User Action Args
2012-04-23 21:01:40serhiy.storchakasetrecipients: + serhiy.storchaka, pitrou, vstinner, Arfrever, asvetlov
2012-04-23 21:01:40serhiy.storchakalinkissue14625 messages
2012-04-23 21:01:39serhiy.storchakacreate