Re: [Linux-NTFS Forum: Usage Problems] RE: Large files - slow

On 7/25/06, Anton Altaparmakov wrote:
> > For comparison, coping a large file from one ntfs partition mounted
> > using the kernel driver to another ntfs partition mounted using
> > ntfs-3g copied ~142MB in 5:19 minutes. (actual size on disk: 134MB):
> > real    5m18.255s
> > user    0m0.028s
> > sys     0m0.728s
>
> And how about with the kernel driver as destination?  (Just do "touch
> destination" mounting with ntfs-3g, then unmount, mount with kernel driver
> and do the copy.)

I get "dd: writing to `file': Operation not supported" (on the upside,
the times are really good now)
It also happens on a file that was created in Windows (which is not
marked as sparse)

Debian stock kernel 2.6.16-17
NTFS kernel driver 2.1.26 [R/W]

dmesg explains (for both inodes):
ntfs_attr_extend_allocation(): Not enough space in the mft record for
the extended attribute record. This case is not implemented yet.

-- 
Sincerely
Yuval Fledel

-------------------------------------------------------------------------
Take Surveys. Earn Cash. Influence the Future of IT
Join SourceForge.net's Techsay panel and you'll get the chance to share your
opinions on IT & business topics through brief surveys -- and earn cash
http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV