Thanks , My expectation is at least 54M byte / sec ( R=27M , W=27M ) , because we want to cache SDI video raw data which is 270M bit/s for 1 min .
>Hi, > >What is your expectation on performance numbers on this HDD ? >Pl. note that the ATA driver on DaVinci operates in UDMA4 mode. > >swami > >________________________________________ >From: [EMAIL PROTECTED] [EMAIL PROTECTED] On Behalf Of cs [EMAIL PROTECTED] >Sent: Thursday, May 08, 2008 6:39 AM >To: davinci-linux-open-source >Cc: chensu.main >Subject: max speed of Dm6446 ATA interface > >Hi all. > >I buy a dm6446 evm board from SEED.There is a 2.5" harddisk( FUJITSU >MHV2040AH ) on that board . > >Under linux I use hdparm to test the speed , but the average read speed is >only 24M byte / sec . > >Can any one tell me which factor cause the speed so slow , Dm6446 , Linux >Driver , Harddisk ? Did any one do that test under Wince ? > > > > > > 2008-05-08 = = = = = = = = = = = = = = = = = = = = cs [EMAIL PROTECTED] 2008-05-08
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