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Created on 2012年10月26日 22:48 by serhiy.storchaka, last changed 2022年04月11日 14:57 by admin. This issue is now closed.
| Files | ||||
|---|---|---|---|---|
| File name | Uploaded | Description | Edit | |
| faster_unicode_escape.patch | serhiy.storchaka, 2012年10月26日 22:48 | review | ||
| faster_unicode_escape_4.patch | serhiy.storchaka, 2016年06月19日 20:10 | review | ||
| faster_unicode_escape_5.patch | vstinner, 2016年09月02日 12:09 | review | ||
| Messages (11) | |||
|---|---|---|---|
| msg173901 - (view) | Author: Serhiy Storchaka (serhiy.storchaka) * (Python committer) | Date: 2012年10月26日 22:48 | |
The proposed patch optimizes unicode-escape and raw-unicode-escape codecs. Coders still slower than in 3.2, but much faster than in 3.3. Further speedup is possible with the use of stringlib, but I think that this is enough. The code unified and simplified (251 insertions, 345 deletions). Benchmark results (on AMD Athlon 64 X2 4600+): Py2.7 Py3.2 Py3.3 Py3.4+patch 193 (+11%) 325 (-34%) 66 (+224%) 214 decode unicode-escape 'A'*10000 138 (+72%) 241 (-1%) 154 (+55%) 238 decode unicode-escape '\x80'*10000 193 (+10%) 323 (-34%) 72 (+194%) 212 decode unicode-escape '\x80'+'A'*9999 160 (+59%) 273 (-7%) 169 (+51%) 255 decode unicode-escape '\u0100'*10000 193 (-7%) 324 (-44%) 61 (+195%) 180 decode unicode-escape '\u0100'+'A'*9999 138 (+67%) 242 (-5%) 135 (+71%) 231 decode unicode-escape '\u0100'+'\x80'*9999 160 (+59%) 274 (-7%) 169 (+51%) 255 decode unicode-escape '\u8000'*10000 193 (-7%) 323 (-44%) 61 (+195%) 180 decode unicode-escape '\u8000'+'A'*9999 138 (+67%) 242 (-5%) 135 (+71%) 231 decode unicode-escape '\u8000'+'\x80'*9999 160 (+60%) 276 (-7%) 169 (+51%) 256 decode unicode-escape '\u8000'+'\u0100'*9999 178 (+42%) 275 (-8%) 177 (+43%) 253 decode unicode-escape '\U00010000'*10000 192 (+30%) 323 (-23%) 61 (+310%) 250 decode unicode-escape '\U00010000'+'A'*9999 139 (+35%) 243 (-23%) 119 (+57%) 187 decode unicode-escape '\U00010000'+'\x80'*9999 161 (+38%) 273 (-19%) 150 (+48%) 222 decode unicode-escape '\U00010000'+'\u0100'*9999 161 (+38%) 273 (-19%) 150 (+48%) 222 decode unicode-escape '\U00010000'+'\u8000'*9999 558 (-62%) 427 (-50%) 82 (+161%) 214 decode raw-unicode-escape 'A'*10000 560 (-62%) 425 (-50%) 75 (+183%) 212 decode raw-unicode-escape '\x80'*10000 558 (-62%) 425 (-50%) 75 (+183%) 212 decode raw-unicode-escape '\x80'+'A'*9999 178 (+75%) 235 (+32%) 108 (+188%) 311 decode raw-unicode-escape '\u0100'*10000 555 (-62%) 424 (-50%) 61 (+248%) 212 decode raw-unicode-escape '\u0100'+'A'*9999 559 (-62%) 424 (-50%) 61 (+248%) 212 decode raw-unicode-escape '\u0100'+'\x80'*9999 179 (+74%) 235 (+32%) 108 (+188%) 311 decode raw-unicode-escape '\u8000'*10000 555 (-62%) 424 (-50%) 61 (+248%) 212 decode raw-unicode-escape '\u8000'+'A'*9999 558 (-62%) 425 (-50%) 61 (+248%) 212 decode raw-unicode-escape '\u8000'+'\x80'*9999 178 (+75%) 235 (+32%) 108 (+188%) 311 decode raw-unicode-escape '\u8000'+'\u0100'*9999 200 (+18%) 249 (-5%) 132 (+79%) 236 decode raw-unicode-escape '\U00010000'*10000 554 (-58%) 423 (-46%) 61 (+277%) 230 decode raw-unicode-escape '\U00010000'+'A'*9999 558 (-59%) 424 (-46%) 61 (+277%) 230 decode raw-unicode-escape '\U00010000'+'\x80'*9999 178 (+46%) 235 (+11%) 100 (+160%) 260 decode raw-unicode-escape '\U00010000'+'\u0100'*9999 178 (+44%) 235 (+9%) 100 (+157%) 257 decode raw-unicode-escape '\U00010000'+'\u8000'*9999 182 (+137%) 215 (+101%) 148 (+192%) 432 encode unicode-escape 'A'*10000 582 (-10%) 617 (-16%) 470 (+11%) 521 encode unicode-escape '\x80'*10000 182 (+131%) 215 (+96%) 148 (+184%) 421 encode unicode-escape '\x80'+'A'*9999 624 (-7%) 967 (-40%) 558 (+4%) 579 encode unicode-escape '\u0100'*10000 183 (-19%) 215 (-31%) 132 (+12%) 148 encode unicode-escape '\u0100'+'A'*9999 584 (-23%) 617 (-27%) 464 (-3%) 451 encode unicode-escape '\u0100'+'\x80'*9999 627 (-8%) 968 (-40%) 557 (+4%) 579 encode unicode-escape '\u8000'*10000 183 (-19%) 215 (-31%) 148 (+0%) 148 encode unicode-escape '\u8000'+'A'*9999 584 (-23%) 617 (-27%) 490 (-8%) 451 encode unicode-escape '\u8000'+'\x80'*9999 629 (-8%) 969 (-40%) 555 (+4%) 578 encode unicode-escape '\u8000'+'\u0100'*9999 931 (-39%) 939 (-39%) 602 (-5%) 572 encode unicode-escape '\U00010000'*10000 183 (+7%) 215 (-9%) 180 (+9%) 196 encode unicode-escape '\U00010000'+'A'*9999 584 (-9%) 617 (-13%) 482 (+11%) 534 encode unicode-escape '\U00010000'+'\x80'*9999 630 (-14%) 962 (-43%) 565 (-4%) 544 encode unicode-escape '\U00010000'+'\u0100'*9999 630 (-14%) 964 (-44%) 565 (-4%) 544 encode unicode-escape '\U00010000'+'\u8000'*9999 332 (+1459%) 330 (+1468%) 333 (+1454%) 5175 encode raw-unicode-escape 'A'*10000 332 (+1589%) 329 (+1604%) 333 (+1584%) 5607 encode raw-unicode-escape '\x80'*10000 336 (+1569%) 334 (+1579%) 333 (+1584%) 5607 encode raw-unicode-escape '\x80'+'A'*9999 904 (-38%) 911 (-39%) 557 (+0%) 558 encode raw-unicode-escape '\u0100'*10000 336 (+15%) 335 (+16%) 197 (+97%) 388 encode raw-unicode-escape '\u0100'+'A'*9999 335 (+16%) 335 (+16%) 197 (+97%) 388 encode raw-unicode-escape '\u0100'+'\x80'*9999 904 (-38%) 913 (-39%) 557 (+0%) 558 encode raw-unicode-escape '\u8000'*10000 335 (+16%) 335 (+16%) 197 (+96%) 387 encode raw-unicode-escape '\u8000'+'A'*9999 335 (+16%) 335 (+16%) 196 (+98%) 388 encode raw-unicode-escape '\u8000'+'\x80'*9999 912 (-39%) 909 (-39%) 554 (+1%) 558 encode raw-unicode-escape '\u8000'+'\u0100'*9999 966 (-40%) 997 (-42%) 584 (-0%) 583 encode raw-unicode-escape '\U00010000'*10000 336 (-42%) 335 (-41%) 213 (-8%) 196 encode raw-unicode-escape '\U00010000'+'A'*9999 336 (-42%) 335 (-41%) 213 (-8%) 196 encode raw-unicode-escape '\U00010000'+'\x80'*9999 911 (-43%) 911 (-43%) 570 (-8%) 522 encode raw-unicode-escape '\U00010000'+'\u0100'*9999 911 (-43%) 913 (-43%) 570 (-8%) 522 encode raw-unicode-escape '\U00010000'+'\u8000'*9999 |
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| msg185869 - (view) | Author: STINNER Victor (vstinner) * (Python committer) | Date: 2013年04月03日 00:27 | |
unicode-escape and raw-unicode-escape decoders now use the PyUnicodeWriter API. Can you please compare performances of your patch to PyUnicodeWriter API? Decoders overallocate the buffer. According to a comment in the decoder, overallocating is never needed (and will be slower). Your patch does not overallocate the buffer. The decoder should probably be adjusted to disable overallocation. Can you please update your patch on the encoder to the last development version? |
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| msg268866 - (view) | Author: Serhiy Storchaka (serhiy.storchaka) * (Python committer) | Date: 2016年06月19日 20:10 | |
Victor's patch harvested most fruits, but there is a place for further optimization. Benchmark results for new patch: Py3.2 Py3.3 Py3.6 Py3.6+patch 451 (-47%) 77 (+209%) 140 (+70%) 238 decode unicode-escape 'A'*10000 269 (-14%) 161 (+44%) 187 (+24%) 232 decode unicode-escape '\x80'*10000 453 (-48%) 85 (+178%) 181 (+30%) 236 decode unicode-escape '\x80'+'A'*9999 295 (-4%) 185 (+54%) 229 (+24%) 284 decode unicode-escape '\u0100'*10000 452 (-47%) 75 (+221%) 213 (+13%) 241 decode unicode-escape '\u0100'+'A'*9999 275 (-11%) 149 (+64%) 187 (+30%) 244 decode unicode-escape '\u0100'+'\x80'*9999 297 (-4%) 185 (+54%) 230 (+23%) 284 decode unicode-escape '\u8000'*10000 452 (-47%) 75 (+221%) 213 (+13%) 241 decode unicode-escape '\u8000'+'A'*9999 275 (-11%) 149 (+64%) 187 (+30%) 244 decode unicode-escape '\u8000'+'\x80'*9999 295 (-3%) 185 (+54%) 230 (+24%) 285 decode unicode-escape '\u8000'+'\u0100'*9999 318 (-29%) 203 (+11%) 220 (+2%) 225 decode unicode-escape '\U00010000'*10000 452 (-51%) 72 (+207%) 163 (+36%) 221 decode unicode-escape '\U00010000'+'A'*9999 275 (-31%) 128 (+49%) 160 (+19%) 191 decode unicode-escape '\U00010000'+'\x80'*9999 295 (-36%) 164 (+16%) 201 (-5%) 190 decode unicode-escape '\U00010000'+'\u0100'*9999 297 (-36%) 166 (+14%) 199 (-5%) 190 decode unicode-escape '\U00010000'+'\u8000'*9999 559 (-62%) 88 (+143%) 194 (+10%) 214 decode raw-unicode-escape 'A'*10000 555 (-62%) 88 (+142%) 195 (+9%) 213 decode raw-unicode-escape '\x80'*10000 559 (-62%) 88 (+142%) 195 (+9%) 213 decode raw-unicode-escape '\x80'+'A'*9999 265 (+29%) 133 (+156%) 212 (+61%) 341 decode raw-unicode-escape '\u0100'*10000 563 (-54%) 77 (+235%) 195 (+32%) 258 decode raw-unicode-escape '\u0100'+'A'*9999 559 (-54%) 77 (+234%) 194 (+32%) 257 decode raw-unicode-escape '\u0100'+'\x80'*9999 269 (+27%) 138 (+147%) 208 (+64%) 341 decode raw-unicode-escape '\u8000'*10000 562 (-54%) 77 (+235%) 193 (+34%) 258 decode raw-unicode-escape '\u8000'+'A'*9999 559 (-54%) 77 (+234%) 194 (+32%) 257 decode raw-unicode-escape '\u8000'+'\x80'*9999 265 (+29%) 138 (+147%) 208 (+64%) 341 decode raw-unicode-escape '\u8000'+'\u0100'*9999 281 (-13%) 152 (+61%) 228 (+7%) 244 decode raw-unicode-escape '\U00010000'*10000 562 (-65%) 74 (+164%) 200 (-2%) 195 decode raw-unicode-escape '\U00010000'+'A'*9999 557 (-65%) 74 (+162%) 200 (-3%) 194 decode raw-unicode-escape '\U00010000'+'\x80'*9999 265 (-2%) 122 (+114%) 184 (+42%) 261 decode raw-unicode-escape '\U00010000'+'\u0100'*9999 269 (-3%) 122 (+113%) 185 (+41%) 260 decode raw-unicode-escape '\U00010000'+'\u8000'*9999 195 (+136%) 109 (+323%) 258 (+79%) 461 encode unicode-escape 'A'*10000 673 (-23%) 522 (-1%) 254 (+103%) 516 encode unicode-escape '\x80'*10000 197 (+134%) 132 (+248%) 247 (+86%) 460 encode unicode-escape '\x80'+'A'*9999 869 (-22%) 627 (+9%) 333 (+105%) 682 encode unicode-escape '\u0100'*10000 197 (-19%) 124 (+28%) 158 (+1%) 159 encode unicode-escape '\u0100'+'A'*9999 669 (-35%) 493 (-12%) 236 (+83%) 432 encode unicode-escape '\u0100'+'\x80'*9999 866 (-20%) 628 (+10%) 333 (+108%) 692 encode unicode-escape '\u8000'*10000 197 (-19%) 125 (+27%) 158 (+1%) 159 encode unicode-escape '\u8000'+'A'*9999 669 (-35%) 492 (-12%) 236 (+83%) 433 encode unicode-escape '\u8000'+'\x80'*9999 869 (-20%) 627 (+11%) 324 (+114%) 694 encode unicode-escape '\u8000'+'\u0100'*9999 870 (-1%) 897 (-4%) 501 (+72%) 861 encode unicode-escape '\U00010000'*10000 197 (+20%) 139 (+70%) 234 (+1%) 236 encode unicode-escape '\U00010000'+'A'*9999 668 (-27%) 533 (-9%) 249 (+96%) 487 encode unicode-escape '\U00010000'+'\x80'*9999 869 (-12%) 646 (+18%) 344 (+122%) 764 encode unicode-escape '\U00010000'+'\u0100'*9999 864 (-12%) 643 (+19%) 344 (+122%) 762 encode unicode-escape '\U00010000'+'\u8000'*9999 391 (+1310%) 333 (+1556%) 575 (+859%) 5514 encode raw-unicode-escape 'A'*10000 391 (+1229%) 334 (+1456%) 576 (+802%) 5198 encode raw-unicode-escape '\x80'*10000 391 (+1402%) 335 (+1653%) 579 (+914%) 5873 encode raw-unicode-escape '\x80'+'A'*9999 869 (-25%) 687 (-5%) 356 (+83%) 652 encode raw-unicode-escape '\u0100'*10000 391 (+46%) 158 (+260%) 214 (+166%) 569 encode raw-unicode-escape '\u0100'+'A'*9999 391 (+46%) 158 (+260%) 214 (+166%) 569 encode raw-unicode-escape '\u0100'+'\x80'*9999 873 (-25%) 682 (-4%) 356 (+83%) 652 encode raw-unicode-escape '\u8000'*10000 391 (+46%) 158 (+260%) 214 (+166%) 569 encode raw-unicode-escape '\u8000'+'A'*9999 391 (+46%) 157 (+262%) 214 (+166%) 569 encode raw-unicode-escape '\u8000'+'\x80'*9999 869 (-25%) 688 (-5%) 345 (+90%) 656 encode raw-unicode-escape '\u8000'+'\u0100'*9999 917 (+4%) 859 (+11%) 532 (+79%) 952 encode raw-unicode-escape '\U00010000'*10000 392 (-15%) 182 (+84%) 260 (+28%) 334 encode raw-unicode-escape '\U00010000'+'A'*9999 392 (-15%) 182 (+83%) 260 (+28%) 333 encode raw-unicode-escape '\U00010000'+'\x80'*9999 870 (-15%) 672 (+10%) 355 (+108%) 738 encode raw-unicode-escape '\U00010000'+'\u0100'*9999 871 (-16%) 672 (+9%) 355 (+106%) 730 encode raw-unicode-escape '\U00010000'+'\u8000'*9999 |
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| msg274233 - (view) | Author: STINNER Victor (vstinner) * (Python committer) | Date: 2016年09月02日 11:38 | |
Unicode escape encodecs were modified by the issue #25353 to use the _PyBytesWriter API. Sadly, I didn't benchmark my change before pushing it :-/ Your patch basically reverts my change. > Py3.2 Py3.3 Py3.6 Py3.6+patch > 195 (+136%) 109 (+323%) 258 (+79%) 461 encode unicode-escape 'A'*10000 > 391 (+1310%) 333 (+1556%) 575 (+859%) 5514 encode raw-unicode-escape 'A'*10000 I'm surprised that the revert makes raw-unicode-escape encoder so much faster. Does it mean that the _PyBytesWriter API is so inefficient? The most efficient case for _PyBytesWriter is when you only call _PyBytesWriter_Alloc() and _PyBytesWriter_Finish() and the output string has exactly the allocated length. It should be the case when 'A'*10000 is encoded, no? |
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| msg274236 - (view) | Author: STINNER Victor (vstinner) * (Python committer) | Date: 2016年09月02日 12:09 | |
I rebased faster_unicode_escape_4.patch and made tiny changes: * Rename WRITECHAR macro to WRITE_ASCII_CHAR() * Add WRITE_CHAR() macro to avoid "goto writechar;" * Drop the "store" label: use WRITE_CHAR() macro instead, expect that getcode() only returns valid unicode characters (<= MAX_UNICODE) * For \UHHHHHHHH format: since MAX_UNICODE is 0x10ffff, hardcode the first two digits as 0, and add an assertion on MAX_UNICODE value * PEP 7: add {...} on if/else blocks |
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| msg274238 - (view) | Author: Serhiy Storchaka (serhiy.storchaka) * (Python committer) | Date: 2016年09月02日 14:27 | |
> Unicode escape encodecs were modified by the issue #25353 to use the > _PyBytesWriter API. Sadly, I didn't benchmark my change before pushing it > :-/ You can benchmark it now by checking out revisions with your patch and just before. But AFAIK the performance was not changed since 3.3 and the effect of your patch is the difference between columns 3.3 and 3.6 (very good). I used scripts from https://bitbucket.org/storchaka/cpython-stuff/src/default/ bench/ . > Your patch basically reverts my change. > > > Py3.2 Py3.3 Py3.6 Py3.6+patch > > 195 (+136%) 109 (+323%) 258 (+79%) 461 encode unicode-escape > > 'A'*10000 391 (+1310%) 333 (+1556%) 575 (+859%) 5514 encode > > raw-unicode-escape 'A'*10000 > I'm surprised that the revert makes raw-unicode-escape encoder so much > faster. Does it mean that the _PyBytesWriter API is so inefficient? I don't remember all details, but it seems that after applying all optimizations _PyBytesWriter became just not needed (unlike to _PyUnicodeWriter that is used for widening a buffer). The awesome difference in encoding for ascii-only data is not related to using _PyBytesWriter. It is caused by reordering checks in the inner loop. > * Rename WRITECHAR macro to WRITE_ASCII_CHAR() This is not correct name. This macro is used for writing non-ascii characters too. > * Add WRITE_CHAR() macro to avoid "goto writechar;" > * Drop the "store" label: use WRITE_CHAR() macro instead, Did you benchmark this change? I afraid that this inflates execution code size and can have negative impact on the performance. |
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| msg274239 - (view) | Author: STINNER Victor (vstinner) * (Python committer) | Date: 2016年09月02日 14:33 | |
> Did you benchmark this change? I afraid that this inflates execution code size and can have negative impact on the performance. I consider that readability (maintainability) matters more than such micro optimization. |
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| msg274681 - (view) | Author: Roundup Robot (python-dev) (Python triager) | Date: 2016年09月07日 00:08 | |
New changeset ad5a28ace615 by Victor Stinner in branch 'default': Optimize unicode_escape and raw_unicode_escape https://hg.python.org/cpython/rev/ad5a28ace615 |
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| msg274682 - (view) | Author: STINNER Victor (vstinner) * (Python committer) | Date: 2016年09月07日 00:09 | |
Since it's almost the 3.6 beta 1, I chose to push the change right now. I'm sure that it's faster, I trust your benchmarks ;-) Thanks Serhiy for this nice enhancement. > > * Rename WRITECHAR macro to WRITE_ASCII_CHAR() > This is not correct name. This macro is used for writing non-ascii characters too. Oh, I fixed this in the pushed change. |
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| msg274780 - (view) | Author: Serhiy Storchaka (serhiy.storchaka) * (Python committer) | Date: 2016年09月07日 08:51 | |
Thanks Victor! I benchmarked your patch. There is no regression in comparison with my patch. In few cases your patch is even faster! Unpatched Patch v.4 Patch v.5 148 (+76%) 235 (+11%) 260 decode unicode-escape 'A'*10000 197 (+30%) 257 (+0%) 257 decode unicode-escape '\x80'*10000 195 (+32%) 232 (+11%) 258 decode unicode-escape '\x80'+'A'*9999 227 (+39%) 308 (+2%) 315 decode unicode-escape '\u0100'*10000 197 (+56%) 241 (+27%) 307 decode unicode-escape '\u0100'+'A'*9999 201 (+35%) 264 (+3%) 271 decode unicode-escape '\u0100'+'\x80'*9999 227 (+39%) 308 (+2%) 315 decode unicode-escape '\u8000'*10000 197 (+56%) 241 (+27%) 307 decode unicode-escape '\u8000'+'A'*9999 201 (+35%) 264 (+3%) 271 decode unicode-escape '\u8000'+'\x80'*9999 227 (+39%) 308 (+2%) 315 decode unicode-escape '\u8000'+'\u0100'*9999 200 (+26%) 245 (+2%) 251 decode unicode-escape '\U00010000'*10000 192 (+38%) 230 (+15%) 265 decode unicode-escape '\U00010000'+'A'*9999 167 (+26%) 203 (+4%) 211 decode unicode-escape '\U00010000'+'\x80'*9999 194 (+31%) 248 (+2%) 254 decode unicode-escape '\U00010000'+'\u0100'*9999 194 (+31%) 247 (+3%) 254 decode unicode-escape '\U00010000'+'\u8000'*9999 197 (+9%) 214 (+0%) 215 decode raw-unicode-escape 'A'*10000 197 (+9%) 214 (+0%) 214 decode raw-unicode-escape '\x80'*10000 197 (+9%) 214 (+0%) 214 decode raw-unicode-escape '\x80'+'A'*9999 216 (+68%) 365 (-1%) 363 decode raw-unicode-escape '\u0100'*10000 181 (+43%) 262 (-1%) 259 decode raw-unicode-escape '\u0100'+'A'*9999 181 (+43%) 264 (-2%) 258 decode raw-unicode-escape '\u0100'+'\x80'*9999 216 (+68%) 365 (-1%) 363 decode raw-unicode-escape '\u8000'*10000 181 (+43%) 261 (-1%) 259 decode raw-unicode-escape '\u8000'+'A'*9999 181 (+43%) 263 (-2%) 258 decode raw-unicode-escape '\u8000'+'\x80'*9999 216 (+68%) 365 (-1%) 363 decode raw-unicode-escape '\u8000'+'\u0100'*9999 245 (+29%) 313 (+1%) 315 decode raw-unicode-escape '\U00010000'*10000 211 (+10%) 195 (+19%) 232 decode raw-unicode-escape '\U00010000'+'A'*9999 211 (+10%) 195 (+19%) 233 decode raw-unicode-escape '\U00010000'+'\x80'*9999 192 (+51%) 287 (+1%) 289 decode raw-unicode-escape '\U00010000'+'\u0100'*9999 192 (+51%) 287 (+1%) 289 decode raw-unicode-escape '\U00010000'+'\u8000'*9999 269 (+73%) 424 (+10%) 465 encode unicode-escape 'A'*10000 266 (+108%) 591 (-6%) 553 encode unicode-escape '\x80'*10000 298 (+55%) 423 (+9%) 463 encode unicode-escape '\x80'+'A'*9999 358 (+93%) 695 (-0%) 692 encode unicode-escape '\u0100'*10000 190 (+13%) 215 (+0%) 215 encode unicode-escape '\u0100'+'A'*9999 235 (+109%) 520 (-5%) 492 encode unicode-escape '\u0100'+'\x80'*9999 342 (+102%) 695 (-1%) 691 encode unicode-escape '\u8000'*10000 190 (+13%) 215 (+0%) 215 encode unicode-escape '\u8000'+'A'*9999 235 (+109%) 520 (-5%) 492 encode unicode-escape '\u8000'+'\x80'*9999 367 (+89%) 698 (-1%) 694 encode unicode-escape '\u8000'+'\u0100'*9999 531 (+124%) 915 (+30%) 1190 encode unicode-escape '\U00010000'*10000 196 (+20%) 235 (+0%) 236 encode unicode-escape '\U00010000'+'A'*9999 237 (+104%) 506 (-4%) 484 encode unicode-escape '\U00010000'+'\x80'*9999 325 (+111%) 681 (+1%) 687 encode unicode-escape '\U00010000'+'\u0100'*9999 325 (+117%) 681 (+3%) 704 encode unicode-escape '\U00010000'+'\u8000'*9999 578 (+853%) 5672 (-3%) 5507 encode raw-unicode-escape 'A'*10000 578 (+731%) 4761 (+1%) 4806 encode raw-unicode-escape '\x80'*10000 581 (+760%) 5218 (-4%) 4995 encode raw-unicode-escape '\x80'+'A'*9999 365 (+96%) 714 (+0%) 714 encode raw-unicode-escape '\u0100'*10000 226 (+72%) 389 (+0%) 389 encode raw-unicode-escape '\u0100'+'A'*9999 226 (+72%) 389 (+0%) 389 encode raw-unicode-escape '\u0100'+'\x80'*9999 373 (+91%) 715 (-0%) 714 encode raw-unicode-escape '\u8000'*10000 226 (+72%) 389 (+0%) 389 encode raw-unicode-escape '\u8000'+'A'*9999 226 (+72%) 389 (+0%) 389 encode raw-unicode-escape '\u8000'+'\x80'*9999 366 (+96%) 718 (+0%) 719 encode raw-unicode-escape '\u8000'+'\u0100'*9999 537 (+110%) 879 (+28%) 1128 encode raw-unicode-escape '\U00010000'*10000 214 (+37%) 293 (+0%) 294 encode raw-unicode-escape '\U00010000'+'A'*9999 214 (+37%) 293 (+0%) 294 encode raw-unicode-escape '\U00010000'+'\x80'*9999 342 (+96%) 669 (+0%) 669 encode raw-unicode-escape '\U00010000'+'\u0100'*9999 342 (+96%) 669 (+0%) 669 encode raw-unicode-escape '\U00010000'+'\u8000'*9999 Could you please add NEWS and What's New entries? |
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| msg274815 - (view) | Author: STINNER Victor (vstinner) * (Python committer) | Date: 2016年09月07日 14:19 | |
Feel free to document the change. It's not my patch, it's yours :-) |
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| History | |||
|---|---|---|---|
| Date | User | Action | Args |
| 2022年04月11日 14:57:37 | admin | set | github: 60538 |
| 2016年09月07日 14:19:28 | vstinner | set | messages: + msg274815 |
| 2016年09月07日 08:51:02 | serhiy.storchaka | set | messages: + msg274780 |
| 2016年09月07日 00:09:55 | vstinner | set | status: open -> closed resolution: fixed messages: + msg274682 |
| 2016年09月07日 00:08:15 | python-dev | set | nosy:
+ python-dev messages: + msg274681 |
| 2016年09月02日 14:33:44 | vstinner | set | messages: + msg274239 |
| 2016年09月02日 14:27:36 | serhiy.storchaka | set | messages: + msg274238 |
| 2016年09月02日 12:09:14 | vstinner | set | files:
+ faster_unicode_escape_5.patch messages: + msg274236 |
| 2016年09月02日 11:38:39 | vstinner | set | messages: + msg274233 |
| 2016年06月19日 20:10:20 | serhiy.storchaka | set | files:
+ faster_unicode_escape_4.patch messages: + msg268866 versions: + Python 3.6, - Python 3.4 |
| 2013年04月03日 00:27:54 | vstinner | set | messages: + msg185869 |
| 2012年10月26日 22:48:25 | serhiy.storchaka | create | |