{"id":101816,"date":"2021-10-27T16:23:23","date_gmt":"2021-10-27T14:23:23","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/vypusk-crabz-0-7-utility-dlya-mnogopotochnogo-szhatiya-i-raspakovki-napisannoj-na-rust"},"modified":"2021-10-27T16:23:23","modified_gmt":"2021-10-27T14:23:23","slug":"vypusk-crabz-0-7-utility-dlya-mnogopotochnogo-szhatiya-i-raspakovki-napisannoj-na-rust","status":"publish","type":"post","link":"https:\/\/prohoster.info\/cs\/blog\/news\/vypusk-crabz-0-7-utility-dlya-mnogopotochnogo-szhatiya-i-raspakovki-napisannoj-na-rust","title":{"rendered":"Vyd\u00e1n\u00ed crabz 0.7, n\u00e1stroje pro v\u00edcetrojnou kompresi a dekompresi napsan\u00e9 v Rustu","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"
Byla vyd\u00e1na utilita crabz, kter\u00e1 implementuje v\u00edcetr\u00e9nov\u00e9 kompresi a dekompresi dat, podobn\u011b jako podobn\u00e1 utilita pigz. Ob\u011b tyto utility jsou v\u00edcetr\u00e9nov\u00e9 varianty programu gzip, optimalizovan\u00e9 pro pr\u00e1ci na v\u00edcej\u00e1drov\u00fdch syst\u00e9mech. Samotn\u00fd crabz se li\u0161\u00ed t\u00edm, \u017ee je naps\u00e1n v programovac\u00edm jazyce Rust, na rozd\u00edl od utility pigz, kter\u00e1 je naps\u00e1na v C (a \u010d\u00e1ste\u010dn\u011b v C++), a vykazuje v\u00fdznamn\u00fd n\u00e1r\u016fst v\u00fdkonu, kter\u00fd v n\u011bkter\u00fdch p\u0159\u00edpadech dosahuje 50%. <\/p>\n
Na str\u00e1nce v\u00fdvoj\u00e1\u0159\u016f je podrobn\u00e9 srovn\u00e1n\u00ed rychlosti obou utilit s r\u016fzn\u00fdmi parametry a pou\u017eit\u00fdmi backendy. M\u011b\u0159en\u00ed byla provedena na souboru csv o velikosti 1,5 GB na testovac\u00ed platform\u011b s procesorem AMD Ryzen 9 3950X 16-Core a 64 GB DDR4 RAM a na opera\u010dn\u00edm syst\u00e9mu Ubuntu 20. Pro ty, kte\u0159\u00ed necht\u011bj\u00ed pronikat do podrobn\u00e9ho rozboru v\u00fdkonu, byl p\u0159ipraven stru\u010dn\u00fd report: <\/p>\n
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crabz s backendem zlib je v\u00fdkonov\u011b shodn\u00fd s pigz;\n
s backendem zlib-ng je a\u017e 1,5kr\u00e1t rychlej\u0161\u00ed ne\u017e pigz;\n
crabz s backendem rust je m\u00edrn\u011b (o 5-10%) rychlej\u0161\u00ed ne\u017e pigz. <\/ul>\n
Podle v\u00fdvoj\u00e1\u0159\u016f m\u00e1 crabz, krom\u011b vy\u0161\u0161\u00ed rychlosti, oproti pigz tak\u00e9 n\u00e1sleduj\u00edc\u00ed v\u00fdhody: <\/p>\n
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crabz s backendem deflate_rust pou\u017e\u00edv\u00e1 k\u00f3d, kter\u00fd je zcela naps\u00e1n v Rustu, co\u017e je bezpe\u010dn\u011bj\u0161\u00ed;\n
crabz je multiplatformn\u00ed a podporuje Windows, co\u017e m\u016f\u017ee p\u0159il\u00e1kat v\u00edce u\u017eivatel\u016f;\n
crabz podporuje v\u00edce form\u00e1t\u016f (Gzip, Zlib, Mgzip, BGZF, Raw Deflate a Snap). <\/ul>\n