Re: Disk I/O stalling whole system ..

[Mariano Kamp <mkamp@gmx.de>]

> >  when copying from one ide disk to another ide disk on the the same
> > controller the whole systems stalls. I am running 2.4.19 on unstable.
>
> Wow. I have the same situation, (can't give you the specs, other than
> to say the primary is a 16GB drive of 1999 era, and the secondary is a
> 40GB drive of late 2001 era.
>
> I get a good 20MB/sec or more to each drive, by themselves, and
> copying between drives is unexpecedly quick (quicker than copying from
> the one drive to itself) on the 2.4 series kernels. No kernel stalls
> or anything to make the system less interactive.
Tim,

  I don't have a problem with raw throughput. For both disks hdparm reports 
around 37 MB/sec, though konqueror reports around 7 MB/s.

  The problem is that nothing else is really running when copying between 
those two disks. I wonder if your drives are on the same cable? hda/hdb?

  Your system is not stalling when copying large files, right?

Cheers,
Mariano