{"id":54859,"date":"2020-01-06T00:00:00","date_gmt":"2020-01-05T21:00:00","guid":{"rendered":"https:\/\/prohoster.info\/blog\/blog_prohoster\/arch-linux-pereshyol-na-arhivy-zstd-1300-k-skorosti-raspakovki-paketov"},"modified":"2020-02-18T14:02:55","modified_gmt":"2020-02-18T11:02:55","slug":"arch-linux-pereshyol-na-arhivy-zstd-1300-k-skorosti-raspakovki-paketov","status":"publish","type":"post","link":"https:\/\/prohoster.info\/it\/blog\/novosti-interneta\/arch-linux-pereshyol-na-arhivy-zstd-1300-k-skorosti-raspakovki-paketov","title":{"rendered":"Arch Linux ha adottato archivi zstd: 1300% di velocit\u00e0 di decompressione dei pacchetti","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Sviluppatori di Arch Linux hanno comunicato<\/a><\/noindex>, hanno cambiato lo schema di impacchettamento dei pacchetti dall'algoritmo. In precedenza veniva utilizzato l'algoritmo xz (.pkg.tar.xz). Ora \u00e8 stato adottato zstd (.pkg.tar.zst). Questo ha permesso di aumentare la velocit\u00e0 di estrazione del 1300% a fronte di un lieve aumento della dimensione dei pacchetti stessi (circa 0,8%). Ci\u00f2 contribuir\u00e0 ad accelerare il processo di installazione e aggiornamento dei pacchetti nel sistema.<\/p>\n

\"Arch<\/p>\n

Attualmente si parla della conversione di 545 pacchetti a zstd. Gli altri riceveranno gradualmente il nuovo algoritmo di compressione con il rilascio degli aggiornamenti. \u00c8 importante notare che i pacchetti nel formato .pkg.tar.zst sono automaticamente supportati con gli aggiornamenti di pacman (5.2) e libarchive (3.3.3-1). Se qualcuno degli utenti non ha ancora aggiornato libarchive, la nuova versione \u00e8 disponibile in un repository separato.<\/p>\n

L'algoritmo zstd (zstandard) \u00e8 stato sviluppato nel 2015 e presentato per la prima volta un anno dopo. Esso prevede una compressione senza perdite ed \u00e8 orientato a offrire una velocit\u00e0 di compressione e decompressione superiore rispetto ai metodi tradizionali. Inoltre, il rapporto di compressione dovrebbe essere comparabile o superiore alle soluzioni esistenti. Si segnala che la versione zstd 0.6, alla massima compressione, mostrava risultati simili a boz, yxz, tornado. Essa superava inoltre lza, brotli e bzip2.<\/p>\n

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Fonte: 3dnews.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\u0420\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u0447\u0438\u043a\u0438 Arch Linux \u0441\u043e\u043e\u0431\u0449\u0438\u043b\u0438, \u0447\u0442\u043e \u0438\u0437\u043c\u0435\u043d\u0438\u043b\u0438 \u0441\u0445\u0435\u043c\u0443 \u0443\u043f\u0430\u043a\u043e\u0432\u043a\u0438 \u043f\u0430\u043a\u0435\u0442\u043e\u0432 \u0441 \u0430\u043b\u0433\u043e\u0440\u0438\u0442\u043c\u0430. \u0420\u0430\u043d\u0435\u0435 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043b\u0441\u044f \u0430\u043b\u0433\u043e\u0440\u0438\u0442\u043c xz (.pkg.tar.xz). \u0422\u0435\u043f\u0435\u0440\u044c \u0436\u0435 \u0437\u0430\u0434\u0435\u0439\u0441\u0442\u0432\u043e\u0432\u0430\u043d zstd (.pkg.tar.zst). \u042d\u0442\u043e \u043f\u043e\u0437\u0432\u043e\u043b\u0438\u043b\u043e \u0443\u0432\u0435\u043b\u0438\u0447\u0438\u0442\u044c \u0441\u043a\u043e\u0440\u043e\u0441\u0442\u044c \u0440\u0430\u0441\u043f\u0430\u043a\u043e\u0432\u043a\u0438 \u043d\u0430 1300 % \u0446\u0435\u043d\u043e\u0439 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[…]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":54860,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-54859","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-novosti-interneta"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\n","aioseo_head_json":{"title":"\ud83e\udd47Arch Linux \u00e8 passato agli archivi zstd: 1300% di aumento della velocit\u00e0 di estrazione dei pacchetti | ProHoster","description":"Gli sviluppatori di Arch Linux hanno comunicato 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