Re: unresponsiveness on linux desktop during file copy

[Robert Hancock <hancockrwd@gmail.com>]

Mark Knecht wrote:
> On Fri, May 15, 2009 at 7:38 PM, Satish Eerpini <eerpini@gmail.com> wrote:
> <SNIP>
>> yeah I get similar numbers even in the absence of the desktop manager
>> , when I tried to copy from  a virtual console.
>> the stats look something like this :
> <SNIP>
>> 00:1f.2 IDE interface: Intel Corporation 82801GBM/GHM (ICH7 Family)
>> SATA IDE Controller (rev 01)
> <SNIP>
> 
> I googled on "82801GBM/GHM slow" and found a lot to read.
> 
> Is DMA for this drive enabled? It seems that some others didn't have
> it enabled by default, or maybe at all. I didn't real the threads very
> far.
> 
> hdparm -d1 /dev/sda
> 
> I think hdparm works for most SATA drivers. man sata to see the other
> things you can check in terms of configuration.

Switching on DMA manually isn't possible with libata through hdparm 
currently. However, this shouldn't be required with libata.

> 
> Clearly, since you see the same thing in a console with X never having
> been started says it's not a GUI issue.
> 
> Hope this helps,
> Mark