{"id":104171,"date":"2022-05-27T15:36:55","date_gmt":"2022-05-27T13:36:55","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/razrabotchiki-ubuntu-pristupili-k-resheniyu-problem-s-medlennym-zapuskom-snap-paketa-firefox"},"modified":"2022-05-27T15:36:55","modified_gmt":"2022-05-27T13:36:55","slug":"razrabotchiki-ubuntu-pristupili-k-resheniyu-problem-s-medlennym-zapuskom-snap-paketa-firefox","status":"publish","type":"post","link":"https:\/\/prohoster.info\/it\/blog\/news\/razrabotchiki-ubuntu-pristupili-k-resheniyu-problem-s-medlennym-zapuskom-snap-paketa-firefox","title":{"rendered":"Gli sviluppatori di Ubuntu hanno iniziato a risolvere i problemi di avvio lento del pacchetto snap di Firefox","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Canonical ha avviato la risoluzione dei problemi di prestazioni del pacchetto snap di Firefox, che \u00e8 stato proposto di default in Ubuntu 22.04 al posto del tradizionale pacchetto deb. Il principale malcontento degli utenti riguarda l'avvio molto lento di Firefox. Ad esempio, su un laptop Dell XPS 13, il primo avvio di Firefox dopo l'installazione richiede 7,6 secondi, su un laptop Thinkpad X240 \u2014 15 secondi, e sulla scheda Raspberry Pi 400 \u2014 38 secondi. Le riaperture vengono gi\u00e0 effettuate in 0,86, 1,39 e 8,11 secondi rispettivamente.    <\/p>\n<p>Durante l'analisi del problema sono state individuate 4 principali cause dell'avvio lento, a cui sar\u00e0 data particolare attenzione:    <\/p>\n<ul>\n<li class=\"l\"> Elevati overhead nella ricerca dei file all'interno dell'immagine compressa squashfs, che sono particolarmente evidenti sui sistemi meno potenti. Si prevede di risolvere il problema tramite la raggruppamento dei contenuti per minimizzare le operazioni di spostamento nell'immagine durante l'avvio.\n<li class=\"l\"> Su Raspberry Pi e sui sistemi con GPU AMD, le lunghe attese sono state collegate a un errore nell'identificazione del driver grafico, con un fallback sull'uso del rendering software con una compilazione degli shader molto lenta. Una patch per risolvere il problema \u00e8 gi\u00e0 stata aggiunta in snapd.\n<li class=\"l\"> Molto tempo \u00e8 stato speso per copiare i componenti incorporati nel pacchetto nella directory utente. Nel pacchetto snap erano incorporati 98 pacchetti linguistici, tutti copiati indipendentemente dalla lingua selezionata.\n<li class=\"l\"> Si sono verificate anche delle attese dovute all'individuazione di tutti i font disponibili, dei temi delle icone e delle configurazioni dei font.    <\/ul>\n<p>All'avvio di Firefox da snap si sono riscontrati anche specifici problemi di prestazioni durante l'uso, ma gli sviluppatori di Ubuntu hanno gi\u00e0 preparato delle correzioni per migliorare le prestazioni. Ad esempio, a partire da Firefox 100.0, sono state incluse ottimizzazioni nella fase di binding (LTO) e sulla base dei risultati del profiling del codice (PGO). Per affrontare i problemi di comunicazione tra Firefox e sottosistemi esterni, \u00e8 stato preparato un nuovo XDG Desktop Portal, la cui supporto \u00e8 attualmente in fase di revisione per l'inclusione in Firefox.       <\/p>\n<p>Tra le motivazioni per promuovere il formato snap per i browser c'\u00e8 la volont\u00e0 di semplificare la manutenzione e uniformare lo sviluppo per le diverse versioni di Ubuntu \u2014 il pacchetto deb richiede una manutenzione separata per tutti i rami supportati di Ubuntu e, di conseguenza, raccolte e test tenendo conto delle diverse versioni dei componenti di sistema, mentre il pacchetto snap pu\u00f2 essere creato immediatamente per tutti i rami di Ubuntu. Inoltre, il pacchetto snap di Firefox proposto in Ubuntu \u00e8 supportato dai dipendenti di Mozilla, ovvero viene creato direttamente senza intermediari. La fornitura nel formato snap ha anche consentito di velocizzare l'arrivo delle nuove versioni del browser agli utenti di Ubuntu e ha dato la possibilit\u00e0 di eseguire Firefox in un ambiente isolato, creato con il meccanismo AppArmor, per una protezione aggiuntiva del resto del sistema contro lo sfruttamento delle vulnerabilit\u00e0 nel browser.<br \/>\n<br \/>Fonte: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=57262\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041a\u043e\u043c\u043f\u0430\u043d\u0438\u044f Canonical \u043f\u0440\u0438\u0441\u0442\u0443\u043f\u0438\u043b\u0430 \u043a \u0440\u0435\u0448\u0435\u043d\u0438\u044e \u043f\u0440\u043e\u0431\u043b\u0435\u043c \u0441 \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u044c\u043d\u043e\u0441\u0442\u044c\u044e snap-\u043f\u0430\u043a\u0435\u0442\u0430 \u0441 Firefox, \u043a\u043e\u0442\u043e\u0440\u044b\u0439 \u0431\u044b\u043b \u043f\u0440\u0435\u0434\u043b\u043e\u0436\u0435\u043d \u043f\u043e \u0443\u043c\u043e\u043b\u0447\u0430\u043d\u0438\u044e \u0432 Ubuntu 22.04 \u0432\u043c\u0435\u0441\u0442\u043e \u043e\u0431\u044b\u0447\u043d\u043e\u0433\u043e deb-\u043f\u0430\u043a\u0435\u0442\u0430. \u041e\u0441\u043d\u043e\u0432\u043d\u043e\u0435 \u043d\u0435\u0434\u043e\u0432\u043e\u043b\u044c\u0441\u0442\u0432\u043e \u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u0435\u043b\u0435\u0439 \u0441\u0432\u044f\u0437\u0430\u043d\u043e \u0441 \u043e\u0447\u0435\u043d\u044c \u043c\u0435\u0434\u043b\u0435\u043d\u043d\u044b\u043c \u0437\u0430\u043f\u0443\u0441\u043a\u043e\u043c Firefox. \u041d\u0430\u043f\u0440\u0438\u043c\u0435\u0440, \u043d\u0430 \u043d\u043e\u0443\u0442\u0431\u0443\u043a\u0435 Dell XPS 13 \u043f\u0435\u0440\u0432\u044b\u0439 \u0437\u0430\u043f\u0443\u0441\u043a Firefox \u043f\u043e\u0441\u043b\u0435 \u0443\u0441\u0442\u0430\u043d\u043e\u0432\u043a\u0438 \u0437\u0430\u043d\u0438\u043c\u0430\u0435\u0442 7.6 \u0441\u0435\u043a\u0443\u043d\u0434, \u043d\u0430 \u043d\u043e\u0443\u0442\u0431\u0443\u043a\u0435 Thinkpad X240 &#8212; 15 \u0441\u0435\u043a\u0443\u043d\u0434, \u0430 \u043d\u0430 \u043f\u043b\u0430\u0442\u0435 [&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-104171","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.1.1 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u041a\u043e\u043c\u043f\u0430\u043d\u0438\u044f Canonical \u043f\u0440\u0438\u0441\u0442\u0443\u043f\u0438\u043b\u0430 \u043a \u0440\u0435\u0448\u0435\u043d\u0438\u044e 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