Messages in this thread | | | Subject | Re: Extremely poor umass transfer rates | From | Mark Rosenstand <> | Date | Thu, 28 Apr 2005 20:47:12 +0200 |
| |
On Thu, 2005-04-28 at 19:19 +0100, Paulo Marques wrote: > > | The line that 'hald' puts in fstab looks like this: > > | > > | /dev/sdb /media/usbdisk vfat \ > > | user,exec,noauto,utf8,noatime,sync,managed 0 0 > > The "sync" flag is what is killing your performance. It is needed if you > intend to remove your usb pen without warning, but if you are going to > unmount carefully you don't need it at all. > > Try mounting the device as root somewhere else without the "sync" flag > and measure the performance that way, to see the difference.
Wow. That seems to speed things up alot. However I can't unmount it again, I keep getting "umount: /media/usbdisk: device is busy" (twice(?)). It's been 5 minutes since I did the transfer (4 MB file) now.
> I hope this helps,
It sure did. Thanks!
-- .-. Mark Rosenstand (-.) oo| cc ) /`'\ (+45) 255 31337 3-n-( (\_;/) mark@geekworld.org _(|/`->
- 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/
| |