On my system I have a 120Gb SSD with programs (40GB free) and a 3TB HDD for all my photo files.
Looking at the settings in CS6 it seems as if it has automatically selected my SSD for the scratch folder although in the hints it suggests that the scratch folder should not be your boot drive, however, the fastest drive is probably best. What do you recommed? leave it as it is or change the scratch to the HDD?
I couldn't have said it better than Curt, above.
Do you swap data to scratch a lot? What's your RAM size? You might not need so much scratch if your RAM is huge. If you configure your HDD as the second scratch drive, it will use that if it exceeds the space on your SSD.
I fully understand minimizing the size of SSD, since it's expensive (relatively speaking), but (in support of Curt's comment) I urge others who may be reading this and choosing to outfit their system with SSD to buy a much larger SSD than you think you need.
Agree witn Curt and Noel.
40 GB is woefully inadequate for the scratch, let alone to share it with the swap files of the OS.
Figure on 50 to 100 times or more the size of your largest file multiplied by the number of files you have open.
Ok - thanks for your answers. Can I just clarify a few things as at the moment the settings in the performance section of preferences are all default. I am not a hardcore user. I pretty much only have 1 or 2 files open, with a max of 5 layers with fairly basic adjustments.
I have 16GB RAM of which Photoshop says I have 14.7GB available. It also says the ideal range is between 8085-10585MB. It has selected to use 8820MB which is 60% of the RAM. Should I up this figure? Will I see performance gains? Will I notice other areas of my PC suffering when photoshop is open?
With regards to the scratch disk being set as my 120GB OS SSD with just 40GB free, should I just uncheck this box and check my storage HDD which has 2TB free? What will be the performance issues with this? The scratch will not be competing with the OS but the HDD is not as fast as the SSD.
Also what are cache levels - tells me to select 2 or higher for optimum GPU performance.... Mine is set as 4 default. I have a Geoforce gtx570
You help and knowledge is appreciated
While no hard and fast rule genereally if you allocate 2+ gig to OS you can use rest for photoshop. Certain operations takes a lot of processing power and ram, but if a casual user you may not see much difference.
I would not use the limited space of the SSD for scratch. You may max it out. Again, for a casual user you may not see much change.
Thanks Curt. I shall change the scratch disk to my storage drive.
I have enabled the efficiency monitor and performed a few tasks on numerous files that I would consider above what id normally do. The efficiency stayed at 100% which if I'm correct in thinking means everything was done using RAM and not having to go to scratch. Correct?
Your help is appreciated
Again, Curt's right on.
My experience: When I had 16GB I was able to set the Photoshop limit to 90%, though if you want to be conservative choose 85%. Unless you SPECIFICALLY have something else you want to run that's memory-intensive at the same time you're running Photoshop, the OS itself only needs 1 to 2 GB of RAM.