This weekend I finally downloaded Photoshop CS5 and installed it (I've
been making do with CS4 up till now). I also bumped up the RAM in my PC
from 6 gigs to 16. Anticipating blazing fast performance, I scanned some
6x7 negs and started processing them. The images themselves take up
between 550 to 650 megabytes on the disk, and have a 'pixel dimension"
in PS of 450 to 550 mb.
So... I'm not seeing any speed enhancement at all. Particularly
frustrating is when I launch a filter and things seem to just stop. For
instance, I loaded a large file and selected filter > lens correction.
About 20% of the image appears in the preview and then everything stops
for 45 to 60 seconds, then it starts up again. I fired up windows task
manager and it shows ample free memory (9 to 10 gigs 'available' and 4
to 6 gigs "free.") During the pause the processor drops to just 1 or 2
percent utilization and the system swap file does not grow. However -
photoshop does spawn 8 to 12 temp files, most of which show 0 KB in size
but a couple of which are at the 3 to 6 gigabyte size. During the pause,
I see the drive light on, so I guess everything is stopping while
Photoshop is writing to the scratch drive. But why is it writing to the
drive when it have gobs of free memory? And yes - I did check the
performance tab and PS is set to access 12.964 gigs of ram. Should be
plenty.
I'm starting to wonder if I should set up a ram disk and make it the PS
scratch disk. I'm not even sure if you can do that in WIndows 7 (last
time I used a RAM disk I was using a DOS computer....)
Any thoughts? The processor is an Athlon Phenom X4 955 and the Video
card is an NVidia Geforce 250 with 1 gig of ram, running Win 7 64 bit.
Not a hot rod system but it should be competent.
Thanks -
Mark
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