I recently bought a new computer with a modest Athlon 64X2 4200+ dual core.

Setting the affinities so that the OS assigns the CPU cores results in
both processors running at about 50-60% during the scan (even while
editing in PS [odd angle rotations]):

5:30 (M:ss) for the scan.

I set the Dimage s/w to use core 1 and Photoshop to use core 0.

Time to scan a 35mm slide @ 5400 dpi (16 bit, ICE + GEM on, Firewire):
14:30 (MM:ss). So, at least for scanning, there is no benefit (quite
the contrary) to assigning each process to a specific core.


What's really nice: while scanning and working in PS, there are no
pauses or slowdowns of the scan and PS works pretty fast (as if nothing
else is going on).

A nice way to work...

Cheers,
Alan.

--
-- r.p.e.35mm user resource: http://www.aliasimages.com/rpe35mmur.htm
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-- [SI] gallery & rulz: http://www.pbase.com/shootin
-- e-meil: Remove FreeLunch.

So your conclusion is that one should let the OS assign the cores?

W

Alan Browne wrote:
> I recently bought a new computer with a modest Athlon 64X2 4200+ dual core.
>
> Setting the affinities so that the OS assigns the CPU cores results in
> both processors running at about 50-60% during the scan (even while
> editing in PS [odd angle rotations]):
>
> 5:30 (M:ss) for the scan.
>
> I set the Dimage s/w to use core 1 and Photoshop to use core 0.
>
> Time to scan a 35mm slide @ 5400 dpi (16 bit, ICE + GEM on, Firewire):
> 14:30 (MM:ss). So, at least for scanning, there is no benefit (quite
> the contrary) to assigning each process to a specific core.
>
>
> What's really nice: while scanning and working in PS, there are no
> pauses or slowdowns of the scan and PS works pretty fast (as if nothing
> else is going on).
>
> A nice way to work...
>
> Cheers,
> Alan.
>
> --
> -- r.p.e.35mm user resource: http://www.aliasimages.com/rpe35mmur.htm
> -- r.p.d.slr-systems: http://www.aliasimages.com/rpdslrsysur.htm
> -- [SI] gallery & rulz: http://www.pbase.com/shootin
> -- e-meil: Remove FreeLunch.