{"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\/sv\/blog\/news\/predstavlen-pyston-lite-jit-kompilyator-dlya-shtatnogo-python","title":{"rendered":"Pyston-lite, JIT-kompilatorn f\u00f6r standard Python, har introducerats.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Utvecklarna av projektet Pyston, som erbjuder en h\u00f6gpresterande implementation av spr\u00e5ket Python som anv\u00e4nder moderna JIT-kompileringstekniker, har presenterat Pyston-lite, en implementation av JIT-kompilatorn f\u00f6r CPython. Medan Pyston \u00e4r en avknoppning fr\u00e5n k\u00e4llkoden av CPython och utvecklas separat, \u00e4r Pyston-lite utformat som en universell till\u00e4gg som \u00e4r avsett att kopplas till den vanliga Python-tolkaren (CPython).      <\/p>\n<p>Pyston-lite g\u00f6r det m\u00f6jligt att anv\u00e4nda grundl\u00e4ggande Pyston-teknologier utan att byta ut tolkaren, genom att installera en extra till\u00e4gg med hj\u00e4lp av paketf\u00f6rvaltaren PIP eller Conda. Pyston-lite finns redan i repon f\u00f6r PyPI och Conda, och f\u00f6r att installera \u00e4r det tillr\u00e4ckligt att k\u00f6ra kommandot \"pip install pyston_lite_autoload\" eller \"conda install pyston_lite_autoload -c pyston\". Tv\u00e5 paket erbjuds: pyston_lite (sj\u00e4lva JIT) och pyston_lite_autoload (som g\u00f6r automatisk JIT-substitution vid starten av Python-processen). Det \u00e4r \u00e4ven m\u00f6jligt att styra JIT-aktivering fr\u00e5n applikationen utan att installera autoload-modulen, genom att anv\u00e4nda funktionen pyston_lite.enable().        <\/p>\n<p>\u00c4ven om Pyston-lite inte omfattar alla tillg\u00e4ngliga optimeringar i Pyston, m\u00f6jligg\u00f6r dess anv\u00e4ndning en prestandaf\u00f6rb\u00e4ttring p\u00e5 cirka 10-25% j\u00e4mf\u00f6rt med vanlig Python 3.8. Fram\u00f6ver planeras det att \u00f6verf\u00f6ra de flesta av optimeringarna fr\u00e5n Pyston till Pyston-lite samt att ut\u00f6ka de st\u00f6dda versionerna av CPython (den f\u00f6rsta utg\u00e5van st\u00f6der endast Python 3.8). Bland mer globala planer n\u00e4mns ett samarbete med CPython-teamet f\u00f6r att implementera nya API:er f\u00f6r JIT, som m\u00f6jligg\u00f6r en mer fullst\u00e4ndig kontroll \u00f6ver hur Python fungerar. F\u00f6rslagen \u00e4ndringar diskuteras f\u00f6r att inkluderas i Python 3.12. I idealfallet \u00f6verv\u00e4gs m\u00f6jligheten att \u00f6verf\u00f6ra all funktionalitet fr\u00e5n Pyston till till\u00e4gget, vilket skulle eliminera behovet av att uppr\u00e4tth\u00e5lla en egen forkerad version av CPython.      <\/p>\n<p>F\u00f6rutom Pyston-lite har projektet ocks\u00e5 sl\u00e4ppt en uppdatering av den kompletta paketversionen Pyston 2.3.4, d\u00e4r nya optimeringar erbjuds. I testet pyperformance \u00e4r version 2.3.4 snabbare \u00e4n version 2.3.3 med cirka 6%. Den totala prestandavinsten j\u00e4mf\u00f6rt med CPython uppskattas till 66%.    <\/p>\n<p>Det kan \u00e4ven n\u00e4mnas att det i utvecklingscykeln f\u00f6r CPython 3.11 sker optimeringar i huvudprojektet som i vissa tester har kunnat \u00f6ka prestandan med 25 %. Till exempel har effektiviteten f\u00f6r cachning av bytekodens tillst\u00e5nd i grundmodulerna \u00f6kat, vilket kommer att snabba upp skriptstarten med 10-15 %. Funktionsanrop har blivit betydligt snabbare och specialiserade snabba tolkare f\u00f6r typoperationer har lagts till. Dessutom p\u00e5g\u00e5r arbete med att \u00f6verf\u00f6ra vissa optimeringar som har f\u00f6rberetts av projekten Cinder och HotPy.      <\/p>\n<p>Inom ramen f\u00f6r projektet nogil p\u00e5g\u00e5r arbete med ett experimentellt l\u00e4ge f\u00f6r att bygga CPython utan den globala tolkningsl\u00e5sningen (GIL, Global Interpreter Lock), som hindrar parallellt \u00e5tkomst till delade objekt fr\u00e5n olika tr\u00e5dar, vilket hindrar parallellisering av operationer p\u00e5 flerk\u00e4rniga system. Som ett annat alternativ f\u00f6r att l\u00f6sa problemet med GIL utvecklas m\u00f6jligheten att koppla en separat GIL till varje tolk som k\u00f6rs inom en process (flera tolkar kan k\u00f6ras i en och samma process, men effektiviteten f\u00f6r deras parallella k\u00f6rning begr\u00e4nsas av GIL).<br \/>\n<br \/>K\u00e4lla: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=57320\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\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, [&hellip;]<\/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<!-- All in One SEO 5.0.4 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u0420\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u0447\u0438\u043a\u0438 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