On 12/27/2015 10:30 AM, Mike Gordon via olympus wrote:
No matter how many system RAM you assign to PS, it ALWAYS create a temp file on disk during image
editing. With a large image, the file will went to few GB after a few edits. When you set the
scratch disk to a "RAM disk" it runs much faster and reduce the "write" to HDD
or SSD which can extend the life of the device.
C.H.Ling
----- Original Message ----- From: "Chuck Norcutt" <chucknorcutt [at]
chucknorcutt.com>
I think I agree with all you say except giving memory to a RAM disk. It
would be much more efficient to just give all the RAM to Photoshop. There is an
old saying that nothing improves virtual memory performance like more real
memory. :-)
Chuck Norcutt
Here is what Adobe says on scratch disk issue. Makes sense to have as much
parallelism as possible to limit I/O bottle necks. One of those little mSATA
SSD's for my laptop would be an option.
https://helpx.adobe.com/photoshop/kb/optimize-photoshop-cc-performance.html
I have the scratch disk set to a separate SSD, neither the SSD boot disk Windows uses for virtual memory nor the
conventional disk on which the files I edit reside. I didn't notice any particular improvement in performance when I
implemented this.
Not sure when Ram disk would be clearly advantageous. Only notice sluggish
performance with 24 GB RAM when re-rendering video in PS which I don't do that
much right now. I usually only have a few layers for the average image though.
I believe CH is correct. PS leaves Cache000000xxx.dat files on the scratch disk for every file edited. Even an SSD must
be slower than direct RAM use. And Chuck is right, too, PS could be smarter in memory/disk use for optimal performance.
But the above may be the rub; PS doesn't seem to clear away scratch files. They aren't that large, but could easily fill
up a modest sized RAM disk. I wonder if PS erases old ones when a disk gets full.
Could be Faster Moose
--
What if the Hokey Pokey *IS* what it's all about?
--
_________________________________________________________________
Options: http://lists.thomasclausen.net/mailman/listinfo/olympus
Archives: http://lists.thomasclausen.net/mailman/private/olympus/
Themed Olympus Photo Exhibition: http://www.tope.nl/
|