{"id":52100,"date":"2019-10-31T00:00:00","date_gmt":"2019-10-30T21:00:00","guid":{"rendered":"https:\/\/prohoster.info\/blog\/blog_prohoster\/microsoft-realizoval-v-wsl2-windows-subsystem-for-linux-vozvrashhenie-pamyati-sisteme"},"modified":"2020-02-18T13:59:46","modified_gmt":"2020-02-18T10:59:46","slug":"microsoft-realizoval-v-wsl2-windows-subsystem-for-linux-vozvrashhenie-pamyati-sisteme","status":"publish","type":"post","link":"https:\/\/prohoster.info\/es\/blog\/news\/microsoft-realizoval-v-wsl2-windows-subsystem-for-linux-vozvrashhenie-pamyati-sisteme","title":{"rendered":"Microsoft ha implementado en WSL2 (Subsistema de Windows para Linux) el regreso de la memoria al sistema","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

La empresa Microsoft anunci\u00f3<\/a><\/noindex> acerca de la expansi\u00f3n de las capacidades de la capa WSL2 (Subsistema de Windows para Linux), que permite la ejecuci\u00f3n de archivos ejecutables de Linux en Windows. En las versiones experimentales Windows Insider<\/a><\/noindex> (compilaci\u00f3n 19013) en la capa WSL2 se ha a\u00f1adido soporte para la recuperaci\u00f3n de memoria (Memory Reclamation) liberada por procesos que se ejecutan en un entorno basado en el n\u00facleo de Linux. <\/p>\n

Anteriormente, en caso de un aumento en el consumo de memoria por parte de las aplicaciones o el n\u00facleo, la memoria se asignaba a la m\u00e1quina virtual WSL2, pero despu\u00e9s permanec\u00eda fijada y no regresaba al sistema, incluso despu\u00e9s de finalizar un proceso que consum\u00eda muchos recursos y de que no hubiera m\u00e1s necesidad de esa memoria asignada. El mecanismo de Reclamaci\u00f3n de Memoria permite devolver la memoria liberada al sistema operativo principal y reducir autom\u00e1ticamente el tama\u00f1o de la memoria de la m\u00e1quina virtual. Esto incluye no solo la memoria liberada por procesos de usuario, sino tambi\u00e9n la memoria utilizada para el almacenamiento en cach\u00e9 en el n\u00facleo de Linux. Por ejemplo, en caso de una alta actividad en el disco, aumenta el tama\u00f1o de la cach\u00e9 de p\u00e1ginas, donde se almacena el contenido de los archivos durante el funcionamiento del sistema de archivos. Despu\u00e9s de ejecutar 'echo 1 > \/proc\/sys\/vm\/drop_caches', se puede limpiar la cach\u00e9 y devolver la memoria al sistema operativo principal.<\/p>\n

La implementaci\u00f3n de la recuperaci\u00f3n de memoria se basa en
\nun parche<\/a><\/noindex>, propuesto por ingenieros de Intel para ser incluido en el n\u00facleo principal de Linux con el fin de ampliar las capacidades del controlador virtio-balloon y para el sistema de gesti\u00f3n de memoria. El parche mencionado est\u00e1 dise\u00f1ado para su uso en cualquier sistema invitado para devolver p\u00e1ginas de memoria no utilizadas al sistema host y puede aplicarse con diferentes hipervisor. En el caso de WSL2, el parche se ha adaptado para devolver memoria al hipervisor Hyper-V.<\/p>\n

Recordemos que la segunda edici\u00f3n de WSL se distingue<\/a><\/noindex> por la entrega de un n\u00facleo Linux completo en lugar de un emulador que traduce sobre la marcha las llamadas del sistema Linux a las llamadas del sistema Windows. El n\u00facleo que se proporciona en WSL2 es un n\u00facleo de Linux<\/a><\/noindex> basado en la versi\u00f3n 4.19, que se ejecuta en un entorno de Windows mediante una m\u00e1quina virtual, ya utilizada en Azure. Las actualizaciones para el n\u00facleo de Linux se entregan a trav\u00e9s del mecanismo de Windows Update y se prueban en la infraestructura de integraci\u00f3n continua de Microsoft. Los parches espec\u00edficos para WSL2 utilizados en el n\u00facleo incluyen optimizaciones para reducir el tiempo de arranque del n\u00facleo, disminuir el consumo de memoria y mantener un conjunto m\u00ednimo de controladores y subsistemas en el n\u00facleo.<\/p>\n

<\/a><\/noindex><\/p>\n

Fuente: opennet.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\u041a\u043e\u043c\u043f\u0430\u043d\u0438\u044f Microsoft \u043e\u0431\u044a\u044f\u0432\u0438\u043b\u0430 \u043e \u0440\u0430\u0441\u0448\u0438\u0440\u0435\u043d\u0438\u0438 \u0432\u043e\u0437\u043c\u043e\u0436\u043d\u043e\u0441\u0442\u0435\u0439 \u043f\u0440\u043e\u0441\u043b\u043e\u0439\u043a\u0438 WSL2 (Windows Subsystem for Linux), \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0438\u0432\u0430\u044e\u0449\u0435\u0439 \u0437\u0430\u043f\u0443\u0441\u043a \u0438\u0441\u043f\u043e\u043b\u043d\u044f\u0435\u043c\u044b\u0445 \u0444\u0430\u0439\u043b\u043e\u0432 Linux \u0432 Windows. \u0412 \u044d\u043a\u0441\u043f\u0435\u0440\u0438\u043c\u0435\u043d\u0442\u0430\u043b\u044c\u043d\u044b\u0445 \u0441\u0431\u043e\u0440\u043a\u0430\u0445 Windows Insider (build 19013) \u0432 \u043f\u0440\u043e\u0441\u043b\u043e\u0439\u043a\u0435 WSL2 \u043f\u043e\u044f\u0432\u0438\u043b\u0430\u0441\u044c \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u043a\u0430 \u0432\u043e\u0437\u0432\u0440\u0430\u0449\u0435\u043d\u0438\u044f \u0441\u0438\u0441\u0442\u0435\u043c\u0435 \u043f\u0430\u043c\u044f\u0442\u0438 (Memory Reclamation), \u043e\u0441\u0432\u043e\u0431\u043e\u0436\u0434\u0430\u0435\u043c\u043e\u0439 \u043f\u0440\u043e\u0446\u0435\u0441\u0441\u0430\u043c\u0438, \u0440\u0430\u0431\u043e\u0442\u0430\u044e\u0449\u0438\u043c\u0438 \u0432 \u043e\u043a\u0440\u0443\u0436\u0435\u043d\u0438\u0438 \u043d\u0430 \u0431\u0430\u0437\u0435 \u044f\u0434\u0440\u0430 Linux. \u0420\u0430\u043d\u0435\u0435 \u0432 \u0441\u043b\u0443\u0447\u0430\u0435 \u0440\u043e\u0441\u0442\u0430 \u043f\u043e\u0442\u0440\u0435\u0431\u043b\u0435\u043d\u0438\u044f \u043f\u0430\u043c\u044f\u0442\u0438 \u043f\u0440\u0438\u043b\u043e\u0436\u0435\u043d\u0438\u044f\u043c\u0438 \u0438\u043b\u0438 \u044f\u0434\u0440\u043e\u043c, \u043f\u0430\u043c\u044f\u0442\u044c […]<\/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-52100","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\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 Microsoft ha implementado en WSL2 (Subsistema de Windows para Linux) el retorno de memoria al sistema | ProHoster","description":"Microsoft ha anunciado la expansi\u00f3n de las capacidades de la capa 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