On Sun, 29 Aug 2004, stef wrote:

>     Hello,
> 
>     data transfers from my digital camera are about 10x slower on 
> 2.6.9-rc1 than on 2.6.7 .
>  Kernel 2.6.7 is built with the same .config used for 2.6.9-rc1.
> 
> 2.6.9-rc1:
> 
> [EMAIL PROTECTED]:/mnt/minolta/dcim/10140828# time tar cvf /tmp/mov.tar *.mov
> pict1044.mov
> pict1106.mov
> 
> real    2m24.365s
> user    0m0.007s
> sys     0m0.098s
> 
> [EMAIL PROTECTED]:/mnt/minolta/dcim/10140828# ls -l /tmp/mov.tar
> -rw-r--r--  1 root root 5171200 Aug 29 18:08 /tmp/mov.tar
> 
> 
> 2.6.7:
> 
> [EMAIL PROTECTED]:/mnt/minolta/dcim/10140828# time tar cvf /tmp/tt.tar *.mov
> pict1044.mov
> pict1106.mov
> 
> real    0m19.455s
> user    0m0.003s
> sys     0m0.067s
> 
> 
>     Is it a known issue ?

I haven't seen any previous reports of this.

It might not have anything to do with USB.  Have transfer times for files 
on a non-USB remained the same?  Also, a better test would be to use 
cat >/dev/null instead of tar.

What happens with 2.6.8?

Alan Stern



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