[vdr] Re: AW: Re: Allwell STB... too slow (with pics)

[Thomas Keil <tk@commedia-group.com>]

>
>
>>please check that your hdd uses DMA, maybe the chipset is to "exotic"
>>    
>>
>
>I don't think the problem is the HDD, but the CPU which is always 100%
>:(
>My HDD does not seem to be too "charged".
>  
>
If you don't use DMA the CPU is in charge to move data from one point to 
the other.
If you use DMA = Direct Memory Access it work's faster because the CPU 
doesn't have to take care of the data movement.

OK it's a very simple description ;)

Result:
-Less CPU usage
-Faster harddisk operations

Try "hdparam /dev/hdX" and you'll see the parameters
"hdparm -h" tells you all possible switches.

Thomas