{"id":79051,"date":"2020-04-23T19:43:32","date_gmt":"2020-04-23T17:43:32","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/novyj-metod-upravleniya-pamyatyu-ot-facebook"},"modified":"2020-04-23T19:43:32","modified_gmt":"2020-04-23T17:43:32","slug":"novyj-metod-upravleniya-pamyatyu-ot-facebook","status":"publish","type":"post","link":"https:\/\/prohoster.info\/sq\/blog\/news\/novyj-metod-upravleniya-pamyatyu-ot-facebook","title":{"rendered":"Metoda e re p\u00ebr menaxhimin e memories nga Facebook","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Nj\u00eb nga an\u00ebtar\u00ebt e ekipit t\u00eb zhvillimit t\u00eb rrjetit social <strong>Facebook<\/strong>, <strong>Roman Gushchin<\/strong>, propozi nj\u00eb grup <strong>patch-esh p\u00ebr b\u00ebrtham\u00ebn Linux<\/strong>, e orientuar drejt p\u00ebrmir\u00ebsimit t\u00eb funksionimit t\u00eb memories n\u00ebp\u00ebrmjet implementimit t\u00eb nj\u00eb kontrolluesi t\u00eb ri t\u00eb menaxhimit t\u00eb saj \u2014  <strong>slab (kontrolluesi slab memory)<\/strong>.<\/p>\n<p><strong>Shp\u00ebrndarja slab<\/strong> \u2013 \u00ebsht\u00eb nj\u00eb mekaniz\u00ebm menaxhimi t\u00eb memories, i krijuar p\u00ebr shp\u00ebrndarjen m\u00eb efikase t\u00eb memories dhe p\u00ebr eliminimin e fraksionimit t\u00eb konsideruesh\u00ebm. Baza e k\u00ebtij algoritmi \u00ebsht\u00eb ruajtja e memories t\u00eb alokuar, q\u00eb p\u00ebrmban nj\u00eb objekt t\u00eb nj\u00eb lloji t\u00eb caktuar, dhe rip\u00ebrdorimi i k\u00ebsaj memorjeje gjat\u00eb alokimit t\u00eb ardhsh\u00ebm p\u00ebr nj\u00eb objekt t\u00eb t\u00eb nj\u00ebjtit lloj. Ky metod ishte prezantuar fillimisht n\u00eb SunOS nga Jeff Bonwick dhe tani p\u00ebrdoret gjer\u00ebsisht n\u00eb b\u00ebrthamat e shum\u00eb sistemeve operative Unix, p\u00ebrfshir\u00eb FreeBSD dhe Linux.<\/p>\n<p>N\u00eb thelb t\u00eb kontrolluesit t\u00eb ri \u00ebsht\u00eb transferimi i mbajtjes s\u00eb kontabilitetit slab nga niveli i faqeve t\u00eb memories n\u00eb nivelin e objekteve t\u00eb b\u00ebrtham\u00ebs, q\u00eb ofron mund\u00ebsin\u00eb e ndarjes s\u00eb nj\u00eb faqe slab n\u00eb t\u00eb k\u00fcl\u00f6n cgroup, n\u00eb vend t\u00eb ndarjes s\u00eb nj\u00eb caches t\u00eb ve\u00e7ant\u00eb p\u00ebr secil\u00ebn cgroup.<\/p>\n<p>Sipas rezultateve t\u00eb provave, metoda e propozuar p\u00ebr menaxhimin e memories lejon p\u00ebrmir\u00ebsimin e <strong>eficenc\u00ebs<\/strong> s\u00eb p\u00ebrdorimit slab <strong>deri n\u00eb 45%<\/strong>, si dhe redukton konsumimin e p\u00ebrgjithsh\u00ebm t\u00eb memories nga b\u00ebrthama e sistemit operativ. Po ashtu, p\u00ebrmes reduktimit t\u00eb numrit t\u00eb faqeve t\u00eb ndara p\u00ebr slab, fraksionimi i memories gjithashtu zvog\u00eblohet, q\u00eb nuk mund t\u00eb mos ndikoj\u00eb n\u00eb performanc\u00ebn e sistemit.<\/p>\n<p>Kontrolluesi i ri \u00ebsht\u00eb duke u testuar p\u00ebr disa muaj n\u00eb server\u00ebt e pun\u00ebs t\u00eb Facebook-ut, dhe deri tani k\u00ebto teste mund t\u00eb quhen t\u00eb suksesshme: pa humbje n\u00eb performanc\u00eb dhe rritje t\u00eb numrit t\u00eb gabimeve, \u00ebsht\u00eb v\u00ebn\u00eb re nj\u00eb ulje e dukshme e konsumit t\u00eb memories \u2014 n\u00eb disa server\u00eb deri n\u00eb 1Gb. Ky num\u00ebr \u00ebsht\u00eb mjaft subjektiv, p\u00ebr shembull, testet e kaluara kan\u00eb treguar rezultate pak m\u00eb t\u00eb ul\u00ebta:<\/p>\n<ul>\n<li>650-700 MB n\u00eb p\u00ebrpar\u00ebsin\u00eb e webit<\/li>\n<li>750-800 MB n\u00eb serverin me caches t\u00eb baz\u00ebs s\u00eb t\u00eb dh\u00ebnave<\/li>\n<li>700 MB n\u00eb serverin DNS<\/li>\n<\/ul>\n<p><noindex><noindex><\/p>\n<p>&gt;&gt;&gt; <a rel=\"nofollow\" href=\"https:\/\/github.com\/rgushchin\">Faqja e autorit n\u00eb GitHub<\/a><\/p>\n<p><\/noindex><\/noindex><br \/>\n<noindex><\/p>\n<p>&gt;&gt;&gt; <a rel=\"nofollow\" href=\"https:\/\/lwn.net\/Articles\/798605\/\">Rezultatet e testeve t\u00eb hershme<\/a><\/p>\n<p><\/noindex><\/p>\n<p>Burimi: <a \ncontent=\"nofollow\" rel=\"nofollow\" href=\"http:\/\/www.linux.org.ru\/news\/linux-general\/15659654\">linux.org.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041e\u0434\u0438\u043d \u0438\u0437 \u0447\u043b\u0435\u043d\u043e\u0432 \u043a\u043e\u043c\u0430\u043d\u0434\u044b \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u043a\u0438 \u0441\u043e\u0446\u0438\u0430\u043b\u044c\u043d\u043e\u0439 \u0441\u0435\u0442\u0438 Facebook, \u0420\u043e\u043c\u0430\u043d \u0413\u0443\u0449\u0438\u043d, \u043f\u0440\u0435\u0434\u043b\u043e\u0436\u0438\u043b \u0432 \u0440\u0430\u0441\u0441\u044b\u043b\u043a\u0435 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u0447\u0438\u043a\u043e\u0432 \u043d\u0430\u0431\u043e\u0440 \u0438\u0437 \u043f\u0430\u0442\u0447\u0435\u0439 \u0434\u043b\u044f \u044f\u0434\u0440\u0430 Linux, \u043d\u0430\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u043d\u044b\u0445 \u043d\u0430 \u0443\u043b\u0443\u0447\u0448\u0435\u043d\u0438\u0435 \u0440\u0430\u0431\u043e\u0442\u044b \u0441 \u043f\u0430\u043c\u044f\u0442\u044c\u044e \u0447\u0435\u0440\u0435\u0437 \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u044e \u043d\u043e\u0432\u043e\u0433\u043e \u043a\u043e\u043d\u0442\u0440\u043e\u043b\u043b\u0435\u0440\u0430 \u0443\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u0438\u044f \u043e\u043d\u043e\u0439 &#8212; slab (slab memory \u0441ontroller). \u0420\u0430\u0441\u043f\u0440\u0435\u0434\u0435\u043b\u0435\u043d\u0438\u0435 slab &ndash;\u2013 \u044d\u0442\u043e \u043c\u0435\u0445\u0430\u043d\u0438\u0437\u043c \u0443\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u0438\u044f \u043f\u0430\u043c\u044f\u0442\u044c\u044e, \u043f\u0440\u0435\u0434\u043d\u0430\u0437\u043d\u0430\u0447\u0435\u043d\u043d\u044b\u0439 \u0434\u043b\u044f \u0431\u043e\u043b\u0435\u0435 \u044d\u0444\u0444\u0435\u043a\u0442\u0438\u0432\u043d\u043e\u0433\u043e \u0440\u0430\u0441\u043f\u0440\u0435\u0434\u0435\u043b\u0435\u043d\u0438\u044f \u043f\u0430\u043c\u044f\u0442\u0438 \u0438 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0438\u044f \u0437\u043d\u0430\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e\u0439 \u0444\u0440\u0430\u0433\u043c\u0435\u043d\u0442\u0430\u0446\u0438\u0438. \u041e\u0441\u043d\u043e\u0432\u043e\u0439 [&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-79051","post","type-post","status-publish","format-standard","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=\"\u041e\u0434\u0438\u043d \u0438\u0437 \u0447\u043b\u0435\u043d\u043e\u0432 \u043a\u043e\u043c\u0430\u043d\u0434\u044b \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u043a\u0438 \u0441\u043e\u0446\u0438\u0430\u043b\u044c\u043d\u043e\u0439 \u0441\u0435\u0442\u0438 Facebook, \u0420\u043e\u043c\u0430\u043d \u0413\u0443\u0449\u0438\u043d, 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