{"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\/da\/blog\/news\/reliz-valgrind-3-15-0-instrumentariya-dlya-vyyavleniya-problem-pri-rabote-s-pamyatyu","title":{"rendered":"Udgivelsen af Valgrind 3.15.0, v\u00e6rkt\u00f8jet til at identificere problemer med hukommelse","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p><noindex><a rel=\"nofollow\" href=\"https:\/\/sourceforge.net\/p\/valgrind\/mailman\/message\/36642596\/\">Tilg\u00e6ngelig<\/a><\/noindex> udgivelse <noindex><a rel=\"nofollow\" href=\"http:\/\/valgrind.org\/\">Valgrind 3.15.0<\/a><\/noindex>, et v\u00e6rkt\u00f8j til fejlfinding af hukommelsesproblemer, opdagelse af hukommelsesl\u00e6kager og profilering. Valgrind underst\u00f8ttes p\u00e5 platforme som Linux (X86, AMD64, ARM32, ARM64, PPC32, PPC64BE, PPC64LE, S390X, MIPS32, MIPS64), Android (ARM, ARM64, MIPS32, X86), Solaris (X86, AMD64) og macOS (AMD64).<\/p>\n<p>I <noindex><a rel=\"nofollow\" href=\"http:\/\/valgrind.org\/docs\/manual\/dist.news.html\">i den nye version<\/a><\/noindex>:<\/p>\n<ul>\n<li class=\"l\"> Betydeligt <noindex><a rel=\"nofollow\" href=\"https:\/\/blog.mozilla.org\/nnethercote\/2019\/04\/17\/a-better-dhat\/\">omarbejdet<\/a><\/noindex> og det udvidede hukommelsesprofilv\u00e6rkt\u00f8j DHAT (Dynamic Heap Analysis Tool), <noindex><a rel=\"nofollow\" href=\"http:\/\/valgrind.org\/docs\/manual\/dh-manual.html\">der tillader<\/a><\/noindex> Sporene alle anmodninger om hukommelsesfordelinger i hukommelsen og identificere ressource-l\u00e6kager, steder med un\u00f8digt h\u00f8j aktivitet ved arbejde med hukommelsen, ubenyttede hukommelsesallokeringer, kortvarige allokeringer og ineffektiv dataplacering i hukommelsen. Fra kategorien af eksperimentelle v\u00e6rkt\u00f8jer er DHAT nu en del af Valgrinds standardv\u00e6rkt\u00f8jss\u00e6t (for at starte skal du nu bruge indstillingen &#171;&#8212;tool=dhat&#187; i stedet for &#171;&#8212;tool=exp-dhat&#187;).\n<p>Den mest markante forbedring er tilf\u00f8jelsen af en grafisk brugergr\u00e6nseflade til DHAT. Derudover viser DHAT nu kun et minimum af de mest vigtige oplysninger ved afslutning af det overv\u00e5gede program, mens den fulde rapport med profileringsdata nu gemmes i en fil. Data grupperes ikke l\u00e6ngere i poster, men gemmes som staktrace-tr\u00e6er. Antallet af m\u00e5linger er blevet udvidet, og yderligere kategorier for overv\u00e5gning af parametre er blevet tilf\u00f8jet. For at se den gemte rapport tilbydes en s\u00e6rlig visningsfunktion, dh_view.html, som kan k\u00f8res i en webbrowser;<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=\"Udgivelsen af Valgrind 3.15.0, v\u00e6rkt\u00f8jet til at identificere problemer med hukommelse \" src=\"\/wp-content\/uploads\/2019\/04\/9991914838e3e36d4dcb89ea8c3eb087.jpg\" style=\"display:block;margin: 0 auto;\" \/><\/a><\/noindex><\/center><\/p>\n<li class=\"l\"> For amd64-systemer (x86_64) er der tilf\u00f8jet st\u00f8tte til de udvidede instruktioner RDRAND og F16C;\n<li class=\"l\"> I Cachegrind og Callgrind er der tilf\u00f8jet en ny indstilling &#171;&#8212;show-percs&#187;, som tilf\u00f8jer visning af t\u00e6ller-v\u00e6rdier i procent.\n<li class=\"l\"> I Massif er indstillingen &#171;&#8212;read-inline-info&#187; aktiveret som standard for Linux, Android og Solari; for macOS kr\u00e6ves det stadig, at der angives &#171;&#8212;read-inline-info=yes&#187; eksplicit.\n<li class=\"l\"> I Memcheck, n\u00e5r indstillingen &#171;&#8212;xtree-leak=yes&#187; (udskrift af resultater fra hukommelsestest i xtree-format) er angivet, aktiveres indstillingen &#171;&#8212;show-leak-kinds=all&#187; nu automatisk. Der er udf\u00f8rt arbejde for at forhindre falske positiver.\n<li class=\"l\"> Der er tilf\u00f8jet indstillingen &#171;&#8212;show-error-list=no|yes&#187;, samt indstillingen &#171;-s&#187; som svarer til &#171;&#8212;show-error-list=yes&#187; for at vise listen over identificerede fejl efter udf\u00f8relsen. Tidligere blev en s\u00e5dan liste udskrevet i detaljevisningsformatet &#171;-v -v&#187;, men udskriften i dette format blev overfyldt med store m\u00e6ngder overfl\u00f8dig information.\n<\/ul>\n<p><noindex><a rel=\"nofollow\" name=\"link\"><\/a><\/noindex><\/p>\n<p>Kilde: <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 5.0.3 - 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\/da\/blog\/news\/reliz-valgrind-3-15-0-instrumentariya-dlya-vyyavleniya-problem-pri-rabote-s-pamyatyu\" \/>\n\t\t<meta name=\"generator\" content=\"All in One SEO (AIOSEO) 5.0.3\" 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