{"id":104323,"date":"2022-06-09T03:36:45","date_gmt":"2022-06-09T01:36:45","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/predstavlen-pyston-lite-jit-kompilyator-dlya-shtatnogo-python"},"modified":"2022-06-09T03:36:45","modified_gmt":"2022-06-09T01:36:45","slug":"predstavlen-pyston-lite-jit-kompilyator-dlya-shtatnogo-python","status":"publish","type":"post","link":"https:\/\/prohoster.info\/cs\/blog\/news\/predstavlen-pyston-lite-jit-kompilyator-dlya-shtatnogo-python","title":{"rendered":"Byl p\u0159edstaven Pyston-lite, JIT kompil\u00e1tor pro standardn\u00ed Python","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

V\u00fdvoj\u00e1\u0159i projektu Pyston, kter\u00fd nab\u00edz\u00ed vysoce v\u00fdkonnou implementaci jazyka Python vyu\u017e\u00edvaj\u00edc\u00ed modern\u00ed JIT kompilace, p\u0159edstavili roz\u0161\u00ed\u0159en\u00ed Pyston-lite s implementac\u00ed JIT kompil\u00e1toru pro CPython. Zat\u00edmco Pyston je odvozeninou k\u00f3du CPython a vyv\u00edj\u00ed se odd\u011blen\u011b, Pyston-lite je navr\u017eeno jako univerz\u00e1ln\u00ed roz\u0161\u00ed\u0159en\u00ed ur\u010den\u00e9 k p\u0159ipojen\u00ed k ofici\u00e1ln\u00edmu interpret\u00e1toru Python (CPython). <\/p>\n

Pyston-lite umo\u017e\u0148uje pou\u017e\u00edvat z\u00e1kladn\u00ed technologie Pyston bez nutnosti m\u011bnit interpretr, a to instalac\u00ed dal\u0161\u00edho roz\u0161\u00ed\u0159en\u00ed pomoc\u00ed spr\u00e1vce bal\u00ed\u010dk\u016f PIP nebo Conda. Pyston-lite je ji\u017e dostupn\u00fd v repozit\u00e1\u0159\u00edch PyPI a Conda, a pro instalaci sta\u010d\u00ed prov\u00e9st p\u0159\u00edkaz \u201epip install pyston_lite_autoload\u201c nebo \u201econda install pyston_lite_autoload -c pyston\u201c. Nab\u00eddnuta jsou dva bal\u00ed\u010dky: pyston_lite (p\u0159\u00edmo JIT) a pyston_lite_autoload (prov\u00e1d\u00ed automatickou substituci JIT p\u0159i spu\u0161t\u011bn\u00ed procesu Python). Je tak\u00e9 mo\u017en\u00e9 programov\u011b \u0159\u00eddit zapnut\u00ed JIT z aplikace bez instalace modulu autoload, pou\u017eit\u00edm funkce pyston_lite.enable(). <\/p>\n

I kdy\u017e Pyston-lite nezahrnuje v\u0161echny optimalizace dostupn\u00e9 v Pyston, jeho pou\u017e\u00edv\u00e1n\u00ed umo\u017e\u0148uje zv\u00fd\u0161en\u00ed v\u00fdkonu p\u0159ibli\u017en\u011b o 10-25 % ve srovn\u00e1n\u00ed s b\u011b\u017en\u00fdm Pythonem 3.8. V budoucnu se pl\u00e1nuje p\u0159enesen\u00ed v\u011bt\u0161iny optimalizac\u00ed z Pyston do Pyston-lite a rovn\u011b\u017e roz\u0161\u00ed\u0159en\u00ed podporovan\u00fdch verz\u00ed CPython (prvn\u00ed vyd\u00e1n\u00ed podporuje pouze Python 3.8). Mezi ambici\u00f3zn\u00edmi pl\u00e1ny je spolupr\u00e1ce s t\u00fdmem CPython na implementaci nov\u00fdch API pro JIT, kter\u00e9 umo\u017en\u00ed lep\u0161\u00ed kontrolu nad provozem Pythonu. Diskutuje se o zahrnut\u00ed navrhovan\u00fdch zm\u011bn do v\u011btve Python 3.12. Ide\u00e1ln\u011b se zva\u017euje mo\u017enost p\u0159en\u00e9st ve\u0161kerou funk\u010dnost z Pyston do roz\u0161\u00ed\u0159en\u00ed, co\u017e by umo\u017enilo opustit veden\u00ed vlastn\u00edho forku CPython. <\/p>\n

Krom\u011b Pyston-lite bylo tak\u00e9 vyd\u00e1no aktualizovan\u00e9 pln\u00e9 balen\u00ed Pyston 2.3.4, kter\u00e9 nab\u00edz\u00ed nov\u00e9 optimalizace. V testu pyperformance je verze 2.3.4 rychlej\u0161\u00ed ne\u017e vyd\u00e1n\u00ed 2.3.3 p\u0159ibli\u017en\u011b o 6 %. Celkov\u00fd zisk v\u00fdkonu ve srovn\u00e1n\u00ed s CPython je odhadov\u00e1n na 66 %. <\/p>\n

D\u00e1le je mo\u017en\u00e9 zm\u00ednit optimalizace vyv\u00edjen\u00e9 v r\u00e1mci cyklu v\u00fdvoje CPython 3.11 v hlavn\u00edm projektu, kter\u00e9 v n\u011bkter\u00fdch testech umo\u017enily zv\u00fd\u0161it v\u00fdkon o 25 %. Nap\u0159\u00edklad v CPython 3.11 byla zlep\u0161ena \u00fa\u010dinnost cachov\u00e1n\u00ed stavu bajtk\u00f3du z\u00e1kladn\u00edch modul\u016f, co\u017e zrychl\u00ed spu\u0161t\u011bn\u00ed skript\u016f o 10-15 %. V\u00fdrazn\u011b byl urychlen\u00fd vol\u00e1n\u00ed funkc\u00ed a p\u0159id\u00e1ny specializovan\u00e9 rychl\u00e9 interpretery typov\u00fdch operac\u00ed. Tak\u00e9 se pracuje na p\u0159enosu n\u011bkter\u00fdch optimalizac\u00ed, kter\u00e9 p\u0159ipravily projekty Cinder a HotPy. <\/p>\n

D\u00e1le v r\u00e1mci projektu nogil prob\u00edh\u00e1 pr\u00e1ce na experiment\u00e1ln\u00edm re\u017eimu sestaven\u00ed CPython bez glob\u00e1ln\u00ed blokace interpretru (GIL, Global Interpreter Lock), kter\u00e1 neumo\u017e\u0148uje paraleln\u00ed p\u0159\u00edstup k sd\u00edlen\u00fdm objekt\u016fm z r\u016fzn\u00fdch vl\u00e1ken, co\u017e br\u00e1n\u00ed paralelizaci operac\u00ed na v\u00edcej\u00e1drov\u00fdch syst\u00e9mech. Jako jin\u00e1 varianta \u0159e\u0161en\u00ed probl\u00e9mu s GIL se rozv\u00edj\u00ed mo\u017enost p\u0159i\u0159adit jednotliv\u00fd GIL k ka\u017ed\u00e9mu interpretru spou\u0161t\u011bn\u00e9mu uvnit\u0159 procesu (v jednom procesu m\u016f\u017ee b\u011b\u017eet n\u011bkolik interpreter\u016f, ale \u00fa\u010dinnost jejich paraleln\u00edho b\u011bhu nar\u00e1\u017e\u00ed na GIL).
\n
Zdroj: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\u0420\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u0447\u0438\u043a\u0438 \u043f\u0440\u043e\u0435\u043a\u0442\u0430 Pyston, \u043f\u0440\u0435\u0434\u043b\u0430\u0433\u0430\u044e\u0449\u0435\u0433\u043e \u0432\u044b\u0441\u043e\u043a\u043e\u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u044c\u043d\u0443\u044e \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u044e \u044f\u0437\u044b\u043a\u0430 Python, \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u044e\u0449\u0443\u044e \u0441\u043e\u0432\u0440\u0435\u043c\u0435\u043d\u043d\u044b\u0435 \u0442\u0435\u0445\u043d\u043e\u043b\u043e\u0433\u0438\u0438 JIT-\u043a\u043e\u043c\u043f\u0438\u043b\u044f\u0446\u0438\u0438, \u043f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u0438\u043b\u0438 \u0440\u0430\u0441\u0448\u0438\u0440\u0435\u043d\u0438\u0435 Pyston-lite \u0441 \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u0435\u0439 JIT-\u043a\u043e\u043c\u043f\u0438\u043b\u044f\u0442\u043e\u0440\u0430 \u0434\u043b\u044f CPython. \u0415\u0441\u043b\u0438 Pyston \u044f\u0432\u043b\u044f\u0435\u0442\u0441\u044f \u043e\u0442\u0432\u0435\u0442\u0432\u043b\u0435\u043d\u0438\u0435\u043c \u043e\u0442 \u043a\u043e\u0434\u043e\u0432\u043e\u0439 \u0431\u0430\u0437\u044b CPython \u0438 \u0440\u0430\u0437\u0432\u0438\u0432\u0430\u0435\u0442\u0441\u044f \u043e\u0431\u043e\u0441\u043e\u0431\u043b\u0435\u043d\u043d\u043e, \u0442\u043e Pyston-lite \u043e\u0444\u043e\u0440\u043c\u043b\u0435\u043d \u0432 \u0432\u0438\u0434\u0435 \u0443\u043d\u0438\u0432\u0435\u0440\u0441\u0430\u043b\u044c\u043d\u043e\u0433\u043e \u0440\u0430\u0441\u0448\u0438\u0440\u0435\u043d\u0438\u044f, \u043f\u0440\u0435\u0434\u043d\u0430\u0437\u043d\u0430\u0447\u0435\u043d\u043d\u043e\u0433\u043e \u0434\u043b\u044f \u043f\u043e\u0434\u043a\u043b\u044e\u0447\u0435\u043d\u0438\u044f \u043a \u0448\u0442\u0430\u0442\u043d\u043e\u043c\u0443 \u0438\u043d\u0442\u0435\u0440\u043f\u0440\u0435\u0442\u0430\u0442\u043e\u0440\u0443 Python (CPython). Pyston-lite \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u0435\u0442 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u044c \u0431\u0430\u0437\u043e\u0432\u044b\u0435 \u0442\u0435\u0445\u043d\u043e\u043b\u043e\u0433\u0438\u0438 Pyston \u0431\u0435\u0437 \u0437\u0430\u043c\u0435\u043d\u044b \u0438\u043d\u0442\u0435\u0440\u043f\u0440\u0435\u0442\u0430\u0442\u043e\u0440\u0430, […]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-104323","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\n","aioseo_head_json":{"title":"\ud83e\udd47 P\u0159edstaven Pyston-lite, 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