{"id":32045,"date":"2019-10-31T21:44:52","date_gmt":"2019-10-31T18:44:52","guid":{"rendered":"https:\/\/prohoster.info\/blog\/reliz-valgrind-3-15-0-instrumentariya-dlya-vyyavleniya-problem-pri-rabote-s-pamyatyu\/"},"modified":"2019-10-31T21:44:52","modified_gmt":"2019-10-31T18:44:52","slug":"reliz-valgrind-3-15-0-instrumentariya-dlya-vyyavleniya-problem-pri-rabote-s-pamyatyu","status":"publish","type":"post","link":"https:\/\/prohoster.info\/es\/blog\/news\/reliz-valgrind-3-15-0-instrumentariya-dlya-vyyavleniya-problem-pri-rabote-s-pamyatyu","title":{"rendered":"Lanzamiento de Valgrind 3.15.0, herramienta para detectar problemas de manejo de memoria","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p><noindex><a rel=\"nofollow\" href=\"https:\/\/sourceforge.net\/p\/valgrind\/mailman\/message\/36642596\/\">Disponible<\/a><\/noindex> lanzamiento <noindex><a rel=\"nofollow\" href=\"http:\/\/valgrind.org\/\">Valgrind 3.15.0<\/a><\/noindex>, un conjunto de herramientas para depurar el uso de memoria, detectar fugas de memoria y realizar perfiles. El funcionamiento de Valgrind es compatible con plataformas Linux (X86, AMD64, ARM32, ARM64, PPC32, PPC64BE, PPC64LE, S390X, MIPS32, MIPS64), Android (ARM, ARM64, MIPS32, X86), Solaris (X86, AMD64) y macOS (AMD64).<\/p>\n<p>En <noindex><a rel=\"nofollow\" href=\"http:\/\/valgrind.org\/docs\/manual\/dist.news.html\">la nueva versi\u00f3n<\/a><\/noindex>:<\/p>\n<ul>\n<li class=\"l\"> Significativamente <noindex><a rel=\"nofollow\" href=\"https:\/\/blog.mozilla.org\/nnethercote\/2019\/04\/17\/a-better-dhat\/\">redise\u00f1ado<\/a><\/noindex> y se ha ampliado la herramienta de perfilado de memoria DHAT (Dynamic Heap Analysis Tool), <noindex><a rel=\"nofollow\" href=\"http:\/\/valgrind.org\/docs\/manual\/dh-manual.html\">que permite<\/a><\/noindex> rastrear todas las solicitudes de asignaci\u00f3n de memoria en el mont\u00f3n e identificar fugas de recursos, lugares de actividad excesiva al trabajar con el mont\u00f3n, asignaciones de memoria no utilizadas, asignaciones a corto plazo y una ubicaci\u00f3n ineficaz de los datos en el mont\u00f3n. Desde la categor\u00eda de desarrollos experimentales, DHAT ha sido incluido en el conjunto habitual de herramientas de Valgrind (para ejecutar, ahora se debe usar la opci\u00f3n &#171;&#8212;tool=dhat&#187; en lugar de &#171;&#8212;tool=exp-dhat&#187;).\n<p>La mejora m\u00e1s notable es la adici\u00f3n de una interfaz gr\u00e1fica de usuario en DHAT. Adem\u00e1s, despu\u00e9s de que el programa monitorizado ha terminado, DHAT ahora muestra en pantalla solo un resumen m\u00ednimo de la informaci\u00f3n m\u00e1s importante, mientras que el informe completo con los datos de perfilado se guarda en un archivo. Los datos ahora no se agrupan en registros, sino que se guardan como \u00e1rboles de trazado de pila. Se ha ampliado el n\u00famero de mediciones realizadas y se han agregado nuevas categor\u00edas de par\u00e1metros rastreados. Se ha ofrecido un visor especial dh_view.html para visualizar el informe guardado, que se ejecuta en un navegador web;<br \/>\n<center><noindex><a rel=\"nofollow\" href=\"https:\/\/ffp4g1ylyit3jdyti1hqcvtb-wpengine.netdna-ssl.com\/nnethercote\/files\/2019\/04\/dh-tree.png\"><img decoding=\"async\" alt=\"Lanzamiento de Valgrind 3.15.0, herramienta para detectar problemas de manejo de memoria \" src=\"\/wp-content\/uploads\/2019\/04\/9991914838e3e36d4dcb89ea8c3eb087.jpg\" style=\"display:block;margin: 0 auto;\" \/><\/a><\/noindex><\/center><\/p>\n<li class=\"l\"> Para sistemas amd64 (x86_64) se ha a\u00f1adido soporte para conjuntos de instrucciones extendidos RDRAND y F16C;\n<li class=\"l\"> En Cachegrind y Callgrind se ha propuesto una nueva opci\u00f3n &#171;&#8212;show-percs&#187;, que a\u00f1ade la visualizaci\u00f3n de los valores de los contadores en porcentaje;\n<li class=\"l\"> En Massif para Linux, Android y Solaris, se ha activado por defecto el modo &#171;&#8212;read-inline-info&#187;; para macOS todav\u00eda se requiere especificar expl\u00edcitamente &#171;&#8212;read-inline-info=yes&#187;;\n<li class=\"l\"> En Memcheck, al especificar la opci\u00f3n &#171;&#8212;xtree-leak=yes&#187; (salida de resultados de verificaci\u00f3n de fugas de memoria en formato xtree), ahora se activa autom\u00e1ticamente la opci\u00f3n &#171;&#8212;show-leak-kinds=all&#187;. Se ha trabajado para prevenir falsos positivos;\n<li class=\"l\"> Se ha a\u00f1adido la opci\u00f3n &#171;&#8212;show-error-list=no|yes&#187;, as\u00ed como la opci\u00f3n &#171;-s&#187; que es equivalente a &#171;&#8212;show-error-list=yes&#187; para mostrar la lista de errores identificados despu\u00e9s de la finalizaci\u00f3n del proceso. Anteriormente, dicho listado se mostraba en modo detallado &#171;-v -v&#187;, pero la salida en este modo estaba saturada con una gran cantidad de informaci\u00f3n excesiva.\n<\/ul>\n<p><noindex><a rel=\"nofollow\" name=\"link\"><\/a><\/noindex><\/p>\n<p>Fuente: <a \ncontent=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=50546\">opennet.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u0414\u043e\u0441\u0442\u0443\u043f\u0435\u043d \u0440\u0435\u043b\u0438\u0437 Valgrind 3.15.0, \u0438\u043d\u0441\u0442\u0440\u0443\u043c\u0435\u043d\u0442\u0430\u0440\u0438\u044f \u0434\u043b\u044f \u043e\u0442\u043b\u0430\u0434\u043a\u0438 \u0440\u0430\u0431\u043e\u0442\u044b \u0441 \u043f\u0430\u043c\u044f\u0442\u044c\u044e, \u043e\u0431\u043d\u0430\u0440\u0443\u0436\u0435\u043d\u0438\u044f \u0443\u0442\u0435\u0447\u0435\u043a \u043f\u0430\u043c\u044f\u0442\u0438 \u0438 \u043f\u0440\u043e\u0444\u0438\u043b\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044f. \u0420\u0430\u0431\u043e\u0442\u0430 Valgrind \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u0438\u0432\u0430\u0435\u0442\u0441\u044f \u0434\u043b\u044f \u043f\u043b\u0430\u0442\u0444\u043e\u0440\u043c Linux (X86, AMD64, ARM32, ARM64, PPC32, PPC64BE, PPC64LE, S390X, MIPS32, MIPS64), Android (ARM, ARM64, MIPS32, X86), Solaris (X86, AMD64) \u0438 macOS (AMD64). \u0412 \u043d\u043e\u0432\u043e\u0439 \u0432\u0435\u0440\u0441\u0438\u0438: \u0417\u043d\u0430\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e \u043f\u0435\u0440\u0435\u0440\u0430\u0431\u043e\u0442\u0430\u043d \u0438 \u0440\u0430\u0441\u0448\u0438\u0440\u0435\u043d \u0438\u043d\u0441\u0442\u0440\u0443\u043c\u0435\u043d\u0442 \u043f\u0440\u043e\u0444\u0438\u043b\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044f \u043a\u0443\u0447\u0438 DHAT (Dynamic Heap [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":23893,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-32045","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.2 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u0414\u043e\u0441\u0442\u0443\u043f\u0435\u043d \u0440\u0435\u043b\u0438\u0437 Valgrind 3.15.0.\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<meta name=\"author\" content=\"Yuri Gagarin\"\/>\n\t<link rel=\"canonical\" href=\"https:\/\/prohoster.info\/es\/blog\/news\/reliz-valgrind-3-15-0-instrumentariya-dlya-vyyavleniya-problem-pri-rabote-s-pamyatyu\" \/>\n\t<meta name=\"generator\" content=\"All in One SEO (AIOSEO) 5.0.2\" \/>\n\t\t<meta 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