Messages in this thread | | | Date | Tue, 27 Apr 2004 20:17:41 +0100 (BST) | From | Ken Moffat <> | Subject | Re: IDE throughput in 2.6 - it's good! |
| |
On Tue, 27 Apr 2004, Timothy Miller wrote:
> > > Ken Moffat wrote: > > > > > So, despite the numbers shown by hdparm looking worse, when only one > > user is doing anything the performance is actually improved. I've no > > idea which changes have achieved this, but thanks to whoever were > > involved. > > > I've done tests using dd to and from the raw block device under 2.4 and > 2.6. Memory size (kernel boot param mem=) doesn't seem to affect > performance, so I assume that means that dd to and from the raw block > device is unbuffered. When I compare read and write speeds between 2.4 > and 2.6, 2.6 is definately slower. The last 2.6 kernel I tried this > with is 2.6.5. >
Well, my original test used cp, sync, rm, sync. I've no statistics from running 2.4 on this box to compare against.
Ken -- das eine Mal als Tragödie, das andere Mal als Farce
- 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/
| |