-----Original Message-----
>
> So, here are the results from my test.
> Exercise was to copy the kernel rpm from media to hd using dd.
>
> First with CD-ROM (Toshiba FireWire DVD-ROM):
> Direct mount: 2327 KB/sec 6%CPU
> Supermount: 1321 KB/sec 9%CPU
>
> 43% performance regression
>
> Now with Lexar USB stick:
> Direct mount: 731 KB/sec 2%CPU
> Supermount: 24 KB/sec 42%CPU
>
> 97% performance regression and cpu usage jumps up by 40 percent :-(
>
Oh :( I think I know what happens but it will be pretty hard to fix at least
while keeping all functionality.
Slightly offtopic. Do you have problems with "media change detection" on USB
stick? I had report (and verified) that when you unplug stick, change contents
on otehr system and plug back again supermount does not detect media change and
does not remount it. I.e. new contents or changed contents is not visible.
This is because sd skips media change check unless device is removable.
-andrey
