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eyewoo · Posted: Fri Nov 19, 2004 8:34 pm

I just upgraded to Photoshop CS... It works well. However, unless I'm doing something wrong with my settings, there is a serious problem...

I work with quite large filesizes, which seem to be more than doubled in memory usage in CS when compared to version 7. For example, when monitoring scratch disk size (lower left corner), the first number shows how much RAM memory is being used by the file in memory. Here's the problem... a file that uses 635 megs of RAM in Photoshop 7 uses 1.7 gig of RAM in CS. That's a problem... Does anyone know if I've got some setting s set wrong????

EDIT :: ADDENDUM
The Adobe website info says to download the Adjusted Refresh plug-in which fixes the problem... However, the info also says overall performance might be reduced for systems using more than 1 GIG of RAM or multi processors... So, I have 2 GIG and 2 processors... hmmmmm...
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spooge demon · Posted: Sat Nov 20, 2004 4:18 am

This is a big problem that has been the subject of endless debate at the adobe forums. You should go there and search on it and read up.

I use the adjusted refresh plugin, and it really helps. Don't worry too much about the reported scratch size. It is misleading, and the way PS works defies simple explanations. Or so I have learned from hanging around the adobe forums. Really, go read about it.

eyewoo · Posted: Sat Nov 20, 2004 6:38 am

Thanks Craig... I'm on my way...
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cheney · Posted: Sat Nov 20, 2004 12:19 pm

http://www.adobe.com/support/techdocs/330137.html

The Adjusted Refresh plug-in reduces the initial scratch disk usage when you start Photoshop, and reduces the size of the Photoshop image tiles. The smaller tiles allow the display to redraw in smaller pieces, reducing the time needed to preview some filter updates.

Note: The Adjusted Refresh plug-in may reduce the performance of Photoshop if you have more than 1 GB of RAM or use multiple processors.
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jfrancis · Posted: Sat Nov 20, 2004 1:35 pm

http://www.digitmag.co.uk/forums/msgs.cfm?msg=1492&forum=5&tz=480

I haven't had any problems so far, but my file sizes have not been as large as yours must be.

Are people reverting to an earlier version?

eyewoo · Posted: Sat Nov 20, 2004 4:42 pm

I've been using the Adjusted Refresh plug-in for a day now and it seems to take care of the problem... even though I have 2 gig RAM and 2 processors. Gonna keep at it...

Hopefully Adobe will improve their Photoshop memory management in future versions or CS updates.
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cheney · Posted: Sun Nov 21, 2004 11:34 am

Philip, your system sounds pretty similar to mine, so if you notice any funny stuff or lag from the plugin let us know.

Thanks for being my guinney pig.
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eyewoo · Posted: Sun Nov 21, 2004 12:35 pm

de nada...
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spooge demon · Posted: Sun Nov 21, 2004 1:14 pm

I did have to go back to ps7 at the beginning. If I had a lot of files open or big files, PSCS would slow down, thrashing the disk. The same set of files and operations in ps7 were very quick.

If you read through the year of posts on this problem you will see a lot of people complaining, a lot are fine. The number of people complaining has not helped out narrowing the problem down to a few setups/ configs. It is a large number, if my perception is correct.

I should add that the problem is poor performance, not the reported scratch size. This is normal. And in theory, the larger tile size should speed things up. This is according to Chris Cox, one of the engineers/programmers who work for Adobe.

His explanation for the poor performance is a problem with all of our systems, that the adjusted refresh plugin seems to solve for some. There is nothing wrong with PS, says him. I don't have the slightest idea, or even any suspicions.

He also suggests lowering the memory allocation to somewhere between %50-%90. Lower if you are getting out of memory errors when using third party plugins. There is a Faq dealing with how to tune this setting. In general, higher settings for more physical RAM.

So the problem has not and it will not be solved. There is no problem from Adobe's point of view. They cannot reproduce it. I hope they have tried. But they can't fix what they can't see. So all of us have the same hardware/config problem. Whatever problem that may be. And the fix is to cripple PS with the adjusted refresh plugin. At least is works well enough to use.