Messages in this thread | | | Date | Fri, 16 Mar 2007 17:12:53 -0300 | From | John Coppens <> | Subject | Re: Conflict between ide and usb? |
| |
On Fri, 16 Mar 2007 15:52:12 -0400 "Lee Revell" <rlrevell@joe-job.com> wrote:
> On 3/16/07, John Coppens <john@jcoppens.com> wrote: > > The problem I have, is that when I copy a file from a DVD to harddisk, > > the internet connection almost dies (it slows down terribly, so much > > so that established connections actually disconnect, ping looses > > packets, DNS lookup fails, etc). After copy ends, all returns to > > normal. > > Sounds like DMA starvation, it's been seen in the past with some SATA > controllers. Presumably vendors do it to improve benchmark scores.
Hi Lee.
In this case SATA isn't used, as the copy is from IDE to IDE. But I doubt bandwidth has anything to do with it. The DVD transfer rate rarely reaches 3.3 MB/s - which by itself isn't normal.
> You can confirm it by forcing the hard drive and/or DVD drive to a > lower speed if your BIOS allows it.
No... I didn't find any way to lower the speed.
Thanks John - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |