{"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 stanno affrontando i problemi di avvio lento del pacchetto snap di Firefox","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>La compagnia Canonical ha iniziato a risolvere i problemi di prestazioni del pacchetto snap di Firefox, che \u00e8 stato proposto per default in Ubuntu 22.04 al posto del consueto pacchetto deb. Il principale malcontento degli utenti riguarda il tempo di avvio estremamente 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. I riavvii avvengono invece in 0,86, 1,39 e 8,11 secondi rispettivamente.    <\/p>\n<p>Durante l'analisi del problema sono state identificate 4 principali cause del lento avvio, a cui verr\u00e0 data priorit\u00e0 nel processo di risoluzione:    <\/p>\n<ul>\n<li class=\"l\"> Elevati costi di overhead nella ricerca dei file all'interno dell'immagine compressa squashfs, che sono particolarmente evidenti su sistemi a bassa potenza. La questione sar\u00e0 affrontata tramite la raggruppamento del contenuto per minimizzare le operazioni di spostamento nell'immagine durante l'avvio.\n<li class=\"l\"> Su Raspberry Pi e sistemi con GPU AMD, i grandi ritardi si sono rivelati legati a un errore nella rilevazione del driver grafico, con conseguente 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 le estensioni incorporate nel pacchetto nella cartella dell'utente. Il pacchetto snap conteneva 98 pacchetti linguistici, tutti copiati indipendentemente dalla lingua selezionata.\n<li class=\"l\"> Ritardi si sono verificati anche a causa della rilevazione di tutti i font disponibili, dei temi delle icone e delle configurazioni dei font.    <\/ul>\n<p>Quando si avvia Firefox da snap, si sono verificate anche alcune problematiche di performance durante l'uso, ma gli sviluppatori di Ubuntu hanno gi\u00e0 preparato delle patch che migliorano le prestazioni. Ad esempio, a partire da Firefox 100.0, sono incluse ottimizzazioni in fase di linking (LTO) e basate sui risultati del profiling del codice (PGO). Per risolvere 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 si evidenzia il desiderio 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, compilazioni e test in base alle 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 da dipendenti di Mozilla, ovvero \u00e8 creato direttamente senza intermediari. La fornitura nel formato snap ha anche permesso di accelerare la distribuzione delle nuove versioni del browser agli utenti di Ubuntu e ha reso possibile eseguire Firefox in un ambiente isolato, creato tramite il meccanismo AppArmor, per una maggiore protezione 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, 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\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 5.0.0.1 - 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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