{"id":41840,"date":"2020-02-17T05:33:00","date_gmt":"2020-02-17T02:33:00","guid":{"rendered":"https:\/\/prohoster.info\/blog\/blog_prohoster\/google-opublikoval-novyj-variant-sistemy-raspredeleniya-pamyati-tcmalloc"},"modified":"2020-02-17T05:33:00","modified_gmt":"2020-02-17T02:33:00","slug":"google-opublikoval-novyj-variant-sistemy-raspredeleniya-pamyati-tcmalloc","status":"publish","type":"post","link":"https:\/\/prohoster.info\/sq\/blog\/google-opublikoval-novyj-variant-sistemy-raspredeleniya-pamyati-tcmalloc","title":{"rendered":"Google publikoi nj\u00eb variant t\u00eb ri t\u00eb sistemit t\u00eb shp\u00ebrndarjes s\u00eb memories TCMalloc","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Kompania Google paraqiti<\/a><\/noindex> nj\u00eb version i ri i sistemit t\u00eb shp\u00ebrndarjes s\u00eb memories TCMalloc<\/a><\/noindex>, i cili p\u00ebrdoret n\u00eb shum\u00eb projekte t\u00eb brendshme t\u00eb Google. Kodi TCMalloc \u00ebsht\u00eb shkruar n\u00eb C++ dhe distribuohet<\/a><\/noindex> n\u00ebn licenc\u00ebn Apache. P\u00ebr funksionimin e tij nevojitet nj\u00eb kompilator q\u00eb mb\u00ebshtet C++17 p\u00ebr gjuh\u00ebn C++ dhe C11 p\u00ebr gjuh\u00ebn C (gcc 9.2+ ose clang 9.0+). Nga sistemet operative mb\u00ebshtetjes<\/a><\/noindex> vet\u00ebm Linux (x86, PPC).<\/p>\n

E ve\u00e7ant\u00eb \u00ebsht\u00eb se q\u00eb nga viti 2005 ekziston gjithashtu nj\u00eb version tjet\u00ebr t\u00eb tcmalloc, i cili u ofrua<\/a><\/noindex> n\u00eb p\u00ebrb\u00ebrje t\u00eb paket\u00ebs gperftools<\/a><\/noindex> (Google Performance Tools). K\u00ebto jan\u00eb dy rrjete t\u00eb ndryshme<\/a><\/noindex> projekti, q\u00eb kan\u00eb rr\u00ebnj\u00eb t\u00eb p\u00ebrbashk\u00ebta. TCMalloc i ri \u00ebsht\u00eb m\u00eb tep\u00ebr nj\u00eb p\u00ebrpjekje p\u00ebr t\u00eb hapur kodin e zhvillimeve t\u00eb brendshme t\u00eb Google, por deri tani nuk \u00ebsht\u00eb i orientuar p\u00ebr t\u00eb ofruar nj\u00eb ABI t\u00eb q\u00ebndrueshme dhe mb\u00ebshtetje p\u00ebr nj\u00eb gam\u00eb t\u00eb gjer\u00eb sistemesh operative. Mb\u00ebshtetje p\u00ebr tcmalloc t\u00eb vjet\u00ebr nga gperftools do t\u00eb vazhdoj\u00eb, por mund\u00ebsi t\u00eb reja, si lidhja e caches me CPU, nuk do t\u00eb transferohen n\u00eb t\u00eb.<\/p>\n

TCMalloc p\u00ebrfshin nj\u00eb implementim t\u00eb funksionit C malloc() dhe operatorit C++ \"new\", t\u00eb optimizuar p\u00ebr t\u00eb arritur performanc\u00eb t\u00eb lart\u00eb dhe p\u00ebrdorim n\u00eb aplikacione shum\u00eb-thread. TCMalloc gjithashtu ofron mund\u00ebsi introspeksioni dhe profilizimi, duke lejuar aplikacionin t\u00eb marr\u00eb informacion t\u00eb detajuar mbi p\u00ebrdorimin e memories n\u00eb heap. Kodi p\u00ebrmban optimizime t\u00eb bazuara n\u00eb mund\u00ebsit\u00eb moderne t\u00eb gjuh\u00ebs C++, t\u00eb tilla si
\noperatori delete me specifikimin e madh\u00ebsis\u00eb<\/a><\/noindex> nga C++14 dhe alokimin e memories me ndarje<\/a><\/noindex> nga C++17.<\/p>\n

TCMalloc p\u00ebrb\u00ebhet<\/a><\/noindex> p\u00ebrb\u00ebhet nga tre komponent\u00eb: frontend me cache p\u00ebr alokimin dhe \u00e7lirimin e shpejt\u00eb t\u00eb memories, nj\u00eb shtres\u00eb p\u00ebr mbushjen e caches frontend dhe backend q\u00eb kryen operacione si marrja e memories nga sistemi operativ, menaxhimi i pjes\u00ebve t\u00eb m\u00ebdha t\u00eb memories s\u00eb pa p\u00ebrdorur dhe kthimi i memories s\u00eb tep\u00ebrt p\u00ebrs\u00ebri n\u00eb OS. Cache \u00ebsht\u00eb i shkarkuar nga bllokimet dhe punon n\u00eb lidhje me b\u00ebrtham\u00ebn e CPU, por rikthehet n\u00eb modelin e caching lidhur me thread n\u00eb rast se funksionaliteti i nevojsh\u00ebm nuk mb\u00ebshtetet n\u00eb b\u00ebrtham\u00ebn e OS (lidhja e cache me CPU funksionon vet\u00ebm n\u00eb b\u00ebrthama t\u00eb fresk\u00ebta Linux). Backend mb\u00ebshtet pun\u00ebn si me faqet standarde t\u00eb memories, ashtu edhe me faqet e p\u00ebrmasave t\u00eb zgjeruara (hugepage).<\/p>\n

\"Google<\/a><\/noindex><\/center><\/p>\n

Karakteristikat kryesore t\u00eb TCMalloc:<\/p>\n