V\u00fdvoj\u00e1\u0159ka Natalie Vock z Valve p\u0159edstavila \u00fapravu linuxov\u00e9ho j\u00e1dra. Ta zlep\u0161uje vyu\u017eit\u00ed VRAM u 8GB karet tak, \u017ee up\u0159ednostn\u00ed b\u011b\u017e\u00edc\u00ed hru p\u0159ed procesy na pozad\u00ed.<\/p>\n
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\t\t\t\t\t\t\t0.8\u00d7<\/p>\n
\t\t\t\t\t\t\t1.0\u00d7<\/p>\n
\t\t\t\t\t\t\t1.25\u00d7<\/p>\n
\t\t\t\t\t\t\t1.5\u00d7<\/p>\n
\t\t\t\t\t\t\t1.75\u00d7<\/p>\n
\t\t\t\t\t\t\t2.0\u00d7<\/p>\n
\n\t\t\t\t00:00:00\n\t\t\t<\/p>\n
N\u00e1roky modern\u00edch her na grafickou pam\u011b\u0165 neust\u00e1le rostou, co\u017e zp\u016fsobuje pot\u00ed\u017ee zejm\u00e9na majitel\u016fm grafick\u00fdch karet s kapacitou 8 GB a men\u0161\u00ed. Natalie Vock z t\u00fdmu Valve, kter\u00fd se zab\u00fdv\u00e1 v\u00fdvojem grafick\u00fdch ovlada\u010d\u016f pro Linux, nyn\u00ed navrhla \u0159e\u0161en\u00ed, jak v tomto opera\u010dn\u00edm syst\u00e9mu vyu\u017eit\u00ed VRAM zefektivnit.<\/p>\n
Doposud platilo, \u017ee pokud hra vy\u017eadovala v\u00edce grafick\u00e9 pam\u011bti, ne\u017e bylo k dispozici, linuxov\u00e9 j\u00e1dro za\u010dalo p\u0159esouvat \u010d\u00e1st dat do pomalej\u0161\u00ed syst\u00e9mov\u00e9 pam\u011bti RAM, aby zabr\u00e1nilo p\u00e1d\u016fm aplikac\u00ed. Syst\u00e9m v\u0161ak nedok\u00e1zal efektivn\u011b ur\u010dit priority, tak\u017ee nez\u0159\u00eddka p\u0159esunul hern\u00ed data a ve VRAM ponechal nap\u0159\u00edklad okno internetov\u00e9ho prohl\u00ed\u017ee\u010de b\u011b\u017e\u00edc\u00edho na pozad\u00ed. To vedlo k zasek\u00e1v\u00e1n\u00ed a zhor\u0161en\u00ed plynulosti her.<\/p>\n
Nov\u00e9 \u0159e\u0161en\u00ed se op\u00edr\u00e1 o n\u00e1stroj s n\u00e1zvem dmemcg-booster (Device Memory Control Groups). Ten opera\u010dn\u00edmu syst\u00e9mu sd\u011bluje, kter\u00fd program m\u00e1 b\u00fdt aktu\u00e1ln\u011b chr\u00e1n\u011bn p\u0159ed p\u0159esunem dat do syst\u00e9mov\u00e9 pam\u011bti. Pokud syst\u00e9m pot\u0159ebuje uvolnit VRAM, p\u0159esune nejprve data aplikac\u00ed b\u011b\u017e\u00edc\u00edch na pozad\u00ed. Sou\u010d\u00e1st\u00ed sady je tak\u00e9 n\u00e1stroj plasma-foreground-booster, jen\u017e automaticky komunikuje s grafick\u00fdm prost\u0159ed\u00edm KDE a hl\u00e1s\u00ed mu, kter\u00e9 okno se nach\u00e1z\u00ed v pop\u0159ed\u00ed.<\/p>\n
V praxi byly tyto \u00fapravy otestov\u00e1ny ve h\u0159e Cyberpunk 2077 na 8GB grafick\u00e9 kart\u011b. Zat\u00edmco bez z\u00e1plat hra vyu\u017e\u00edvala zhruba 6 GB VRAM a 1,37 GB dat se muselo p\u0159esunout p\u0159es GTT (Graphics Translation Table) do syst\u00e9mov\u00e9 pam\u011bti, s nov\u00fdmi \u00fapravami hra dok\u00e1zala vyu\u017e\u00edt t\u00e9m\u011b\u0159 7,4 GB VRAM. Objem p\u0159esunut\u00fdch dat p\u0159itom klesl na pouh\u00fdch 650 MB. To umo\u017e\u0148uje kart\u00e1m s men\u0161\u00ed kapacitou pam\u011bti fungovat mnohem efektivn\u011bji.<\/p>\n
Popsan\u00e9 softwarov\u00e9 \u00fapravy jsou moment\u00e1ln\u011b integrov\u00e1ny v linuxov\u00e9 distribuci CachyOS a \u010dekaj\u00ed na schv\u00e1len\u00ed pro za\u010dlen\u011bn\u00ed do hlavn\u00ed v\u011btve linuxov\u00e9ho j\u00e1dra. D\u016fle\u017eit\u00fdm omezen\u00edm v\u0161ak je, \u017ee vzhledem k uzav\u0159en\u00e9mu k\u00f3du spr\u00e1vy pam\u011bti u ovlada\u010d\u016f Nvidia, funguje toto \u0159e\u0161en\u00ed v sou\u010dasn\u00e9 dob\u011b v\u00fdhradn\u011b na grafick\u00fdch kart\u00e1ch od spole\u010dnosti AMD<\/a>.<\/p>\n Pravideln\u00fd p\u0159ehled novinek<\/p>\n \n\t\tV\u011bd\u011bl(a) jsi, \u017ee pravideln\u011b odes\u00edl\u00e1me p\u0159ehled nejzaj\u00edmav\u011bj\u0161\u00edch \u010dl\u00e1nk\u016f a novinek? P\u0159ihlas se k odb\u011bru mailov\u00e9ho newsletteru ve sv\u00e9m profilu.
\n\t\tV\u00edce informac\u00ed najde\u0161
\n\t\tzde<\/a>.<\/p>\n