Re: unresponsiveness on linux desktop during file copy

[Robert Hancock]

Mark Knecht wrote:
> On Fri, May 15, 2009 at 7:38 PM, Satish Eerpini <eerpini@xxxxxxxxx> 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

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