{"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\/pt\/blog\/news\/predstavlen-pyston-lite-jit-kompilyator-dlya-shtatnogo-python","title":{"rendered":"Apresentado o Pyston-lite, um compilador JIT para o Python padr\u00e3o","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Os desenvolvedores do projeto Pyston, que oferece uma implementa\u00e7\u00e3o de alta performance da linguagem Python utilizando tecnologias modernas de compila\u00e7\u00e3o JIT, apresentaram a extens\u00e3o Pyston-lite com uma implementa\u00e7\u00e3o do compilador JIT para CPython. Enquanto o Pyston \u00e9 um desdobramento da base de c\u00f3digo do CPython e se desenvolve de forma independente, o Pyston-lite \u00e9 estruturado como uma extens\u00e3o universal destinada a ser conectada ao interpretador padr\u00e3o Python (CPython).      <\/p>\n<p>O Pyston-lite permite usar as tecnologias b\u00e1sicas do Pyston sem substituir o interpretador, atrav\u00e9s da instala\u00e7\u00e3o de uma extens\u00e3o adicional usando o gerenciador de pacotes PIP ou Conda. O Pyston-lite j\u00e1 est\u00e1 dispon\u00edvel nos reposit\u00f3rios PyPI e Conda, e para instal\u00e1-lo, basta executar o comando \u00abpip install pyston_lite_autoload\u00bb ou \u00abconda install pyston_lite_autoload -c pyston\u00bb. Dois pacotes foram oferecidos: pyston_lite (o JIT propriamente dito) e pyston_lite_autoload (que realiza a substitui\u00e7\u00e3o autom\u00e1tica do JIT ao iniciar o processo Python). Tamb\u00e9m \u00e9 poss\u00edvel controlar programaticamente a ativa\u00e7\u00e3o do JIT a partir do aplicativo sem instalar o m\u00f3dulo autoload, utilizando a fun\u00e7\u00e3o pyston_lite.enable().        <\/p>\n<p>Embora o Pyston-lite n\u00e3o cubra todas as otimiza\u00e7\u00f5es dispon\u00edveis no Pyston, seu uso permite um aumento de desempenho de cerca de 10-25% em compara\u00e7\u00e3o com o Python 3.8 padr\u00e3o. No futuro, est\u00e1 previsto a migra\u00e7\u00e3o da maioria das otimiza\u00e7\u00f5es presentes no Pyston para o Pyston-lite, bem como a amplia\u00e7\u00e3o das vers\u00f5es do CPython suportadas (a primeira vers\u00e3o suporta apenas o Python 3.8). Entre os planos mais abrangentes, destaca-se a colabora\u00e7\u00e3o com a equipe do CPython para a implementa\u00e7\u00e3o de novas APIs para JIT, permitindo um controle mais completo sobre a execu\u00e7\u00e3o do Python. A inclus\u00e3o das mudan\u00e7as sugeridas na ramifica\u00e7\u00e3o do Python 3.12 est\u00e1 sendo discutida. Idealmente, considera-se a possibilidade de transferir toda a funcionalidade do Pyston para a extens\u00e3o, o que evitaria a necessidade de manter um fork pr\u00f3prio do CPython.      <\/p>\n<p>Al\u00e9m do Pyston-lite, o projeto tamb\u00e9m lan\u00e7ou uma atualiza\u00e7\u00e3o do pacote completo Pyston 2.3.4, que traz novas otimiza\u00e7\u00f5es. Nos testes de pyperformance, a vers\u00e3o 2.3.4 \u00e9 cerca de 6% mais r\u00e1pida que a 2.3.3. O ganho de desempenho geral em compara\u00e7\u00e3o com o CPython \u00e9 estimado em 66%.    <\/p>\n<p>Al\u00e9m disso, \u00e9 poss\u00edvel observar as otimiza\u00e7\u00f5es em desenvolvimento no ciclo de produ\u00e7\u00e3o do CPython 3.11, que, em alguns testes, permitiram aumentar o desempenho em 25%. Por exemplo, no CPython 3.11, a efici\u00eancia do cache do estado do bytecode dos m\u00f3dulos b\u00e1sicos foi aprimorada, resultando em uma acelera\u00e7\u00e3o de 10-15% no tempo de inicializa\u00e7\u00e3o dos scripts. A chamada de fun\u00e7\u00f5es foi significativamente acelerada e foram adicionados interpretadores r\u00e1pidos especializados para opera\u00e7\u00f5es de tipo. Tamb\u00e9m est\u00e1 em andamento a transfer\u00eancia de algumas otimiza\u00e7\u00f5es preparadas pelos projetos Cinder e HotPy.      <\/p>\n<p>Al\u00e9m disso, dentro do projeto nogil, est\u00e1 sendo desenvolvido um modo experimental de constru\u00e7\u00e3o do CPython sem o bloqueio global do interpretador (GIL, Global Interpreter Lock), que impede o acesso paralelo a objetos compartilhados de diferentes threads, dificultando a paraleliza\u00e7\u00e3o de opera\u00e7\u00f5es em sistemas multicore. Como outra alternativa para resolver o problema do GIL, est\u00e1 se desenvolvendo a possibilidade de vincular um GIL separado a cada interpretador que roda dentro do processo (um processo pode executar v\u00e1rios interpretadores, mas a efici\u00eancia da execu\u00e7\u00e3o paralela deles esbarra no GIL).<br \/>\n<br \/>Fonte: <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 5.0.3 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u0420\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u0447\u0438\u043a\u0438 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