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Rockbox mail archiveSubject: Re[2]: HDD read ahead cacheRe[2]: HDD read ahead cache
From: Uwe Freese <mail_at_uwe-freese.de>
Date: Wed, 14 Aug 2002 00:50:29 +0200 Hello Björn, Björn Stenberg wrote on Tuesday, August 13, 2002, 11:35:36 AM: BS> Probably the easier way to test it is to make a more isolated test BS> case that is not part of the mp3 playing process. Then we'll know BS> if the cache is usable, and can start thinking about how to BS> integrate it in the more complex mp3 playing environment. I made a second test. I added // hdd cache read test ata_read_sectors(100,1,testbuffer); at the end of the main loop at powermgm.c, so that code is called once per minute. I leaved the unit on without playing a mp3 file. Result: every minute, the hdd spins up and reads the same sector again. :-( Now i'm pretty sure that the hdd internal cache is not used at all. Could it be that one can enable/disable the cache of such a harddrive? Bye, Uwe. Received on 2002-08-14 Page template was last modified "Tue Sep 7 00:00:02 2021" The Rockbox Crew -- Privacy Policy |