Loopy Posted September 21, 2011 Report Share Posted September 21, 2011 Jel moze neko da mi objasni razlog zasto je brze kopirati fajlove sa USBa na komp, nego sa kompa na taj isti USB (isti fajl). Quote Link to comment Share on other sites More sharing options...
voodoo_ Posted September 21, 2011 Report Share Posted September 21, 2011 Zato što brzina čitanja i pisanja po USB-u nije ista, iz istog razloga zbog koga ti treba više vremena da napišeš nešto na papir nego da pročitaš sa papira. Quote Link to comment Share on other sites More sharing options...
Guest Posted September 21, 2011 Report Share Posted September 21, 2011 mislim da za sve vrste memorije važi da se podaci brže čitaju nego što se upisuju, al je to ko usb fleševa najizraženije jer su inače spori Quote Link to comment Share on other sites More sharing options...
Loopy Posted September 21, 2011 Author Report Share Posted September 21, 2011 Ok to ima smisla naravno, ali bi mi trebalo tehnicko objasnjenje (odgovaram na neka pitanja za predmet na koledzu - unix je predmet a on nas pita o USB.. koji lik). Quote Link to comment Share on other sites More sharing options...
peja_ Posted September 21, 2011 Report Share Posted September 21, 2011 mozda ima na internetu Quote The thing's hollow — it goes on forever — and — oh my God — it's full of stars! Link to comment Share on other sites More sharing options...
voodoo_ Posted September 21, 2011 Report Share Posted September 21, 2011 Flash memory na vikipediji, piše sve u detalje Quote Link to comment Share on other sites More sharing options...
Loopy Posted September 21, 2011 Author Report Share Posted September 21, 2011 Ok pregledacu na wikipediji. Trazio sam okolo informacije za flash drives ali nisam se setio da gledam memoriju, a ne uredjaje. Hvala Pejo. Quote Link to comment Share on other sites More sharing options...
G!!! Posted September 22, 2011 Report Share Posted September 22, 2011 a zasto varira brzina "pisanja" na neke usb flash memorije ? i to drasticno ? ista velicina je u pitanju, 2 gb jedan film kopira 10 min, drugi 3 min ? Quote Link to comment Share on other sites More sharing options...
abohac Posted September 22, 2011 Report Share Posted September 22, 2011 a zasto varira brzina "pisanja" na neke usb flash memorije ? i to drasticno ? ista velicina je u pitanju, 2 gb jedan film kopira 10 min, drugi 3 min ? Možda su neki komplikovaniji? Npr RPG igrice se sporije kopiraju nego FPS? Quote Link to comment Share on other sites More sharing options...
voodoo_ Posted September 22, 2011 Report Share Posted September 22, 2011 Zavisi od tehnologije u kojoj su proizvedene te memorijske "ćelije", i od kontrolera na samom flešu. Quote Link to comment Share on other sites More sharing options...
Stator Posted September 22, 2011 Report Share Posted September 22, 2011 (edited) Ok to ima smisla naravno, ali bi mi trebalo tehnicko objasnjenje (odgovaram na neka pitanja za predmet na koledzu - unix je predmet a on nas pita o USB.. koji lik). Sto koji lik ? uradis malo dd upis na USB pa onda dd citanja sa USB-a sve to radis dok je vmstat ukljucen. pa napravis analizu sta se desava tamte a sta vamte. pa probas sa USB 1.1 USB 2.0 i sa USB 3.0 da se vidi lepo gde je ogranicenje sam interface a gde memorija na disku. pa mu onda zacinis malo sa detaljima, kazes pre svakog testa smo radili echo 3 > /proc/sys/vm/drop_caches Sto se lepo vidi na vmstat outputu ovde: 0 0 248 72132 394452 589004 0 0 0 28 1110 1463 2 0 98 0 0 0 0 248 72132 394468 588988 0 0 0 72 1114 1691 4 0 96 0 0 3 0 248 967784 444 124256 0 0 0 0 1066 1112 3 7 91 0 0 << drop_caches 0 0 248 1235128 524 86980 0 0 88 12 1074 1030 2 9 85 4 0 0 0 248 1235128 524 87044 0 0 4 0 1019 872 2 0 98 0 0 bla bla bla i tako za sve ima da se upiski porfesor od srece! Edited September 22, 2011 by stator Quote Link to comment Share on other sites More sharing options...
peja_ Posted September 22, 2011 Report Share Posted September 22, 2011 statore, je l' se ti bavis kompjuterima? Quote The thing's hollow — it goes on forever — and — oh my God — it's full of stars! Link to comment Share on other sites More sharing options...
Trooper Posted September 22, 2011 Report Share Posted September 22, 2011 (edited) uradis malo dd upis na USB pa onda dd citanja sa USB-a sve to radis dok[font="Lucida Grande"] je vmstat ukljucen. to je ta suptilna inline izmena fonta :) Edited September 22, 2011 by trooper Quote Link to comment Share on other sites More sharing options...
Loopy Posted September 24, 2011 Author Report Share Posted September 24, 2011 lol Statore. Definitivno cu da probam tako da mu predajem projekte da vidim reakciju :) Quote Link to comment Share on other sites More sharing options...
Lucky Posted September 26, 2011 Report Share Posted September 26, 2011 Već sam ja pit'o stefketa za tu promenu fonta, moram priznati da mu postovi sa tim izmenama deluju baš veselo :) Quote Link to comment Share on other sites More sharing options...
Trooper Posted September 26, 2011 Report Share Posted September 26, 2011 prvo sam pomislio da krade foru Adolfu, ali ipak ne, Stator koristi Lucida Grande dok je Hićin Book Antiqua Quote Link to comment Share on other sites More sharing options...
Lucky Posted September 26, 2011 Report Share Posted September 26, 2011 Već je objasnio da je to povezano sa TapaTalk-om. Quote Link to comment Share on other sites More sharing options...
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