See the PhotoShop performance suggestions here:
<http://helpx.adobe.com/photoshop/kb/optimize-performance-photoshop-cs4-cs5.html>
PhotoShop *only* uses its own disk cache if it's forced to by lack of
real memory. For 64 bit systems it states that it will use all RAM that
you allow it to.
I just got a bit of a surprise. I've never looked at my own performance
settings for a very long time... since before I changed to 64 bit and
CS6. I was surprised to find that the disk cache settings do not find
my "F" drive. It only finds C and D. D is simply a small maintenance
partition on the boot drive not suitable for anything else. F would be a
better place than the C drive and it's very strange that F is not even
visible.
I also just learned that PhotoShop has an "efficiency indicator" (bottom
of the image window). When it reads 100% it means that PhotoShop is
operating entirely within real memory and not using its own cache disk.
<http://helpx.adobe.com/photoshop/kb/optimize-performance-photoshop-cs4-cs5.html#main_Keep_an_eye_on_the_Efficiency_indicator>
Chuck Norcutt
On 11/16/2013 1:14 AM, Moose wrote:
> On 11/15/2013 8:04 PM, Chuck Norcutt wrote:
>> The idea for RAMdisks predates virtual memory systems in PCs... thus the
>> notion of "upper memory" (some piece of additional memory not normally
>> addressable by the OS). I'm inclined to not interfere with the system's
>> management of its total memory space. Let RAMdisks die a normal
>> technological death.
>
> I thought that had already happened. Apparently they are having a small
> revival. For people with massive amounts of
> memory, and apps that nevertheless use disk caches, like PS, it may
> apparently make a significant speed difference in
> operation. So I have read.
>
> I assume makers like Adobe will eventually adapt to use memory instead of
> disk where possible. For the moment, it
> appears the legacy of limited addressing in Windoze lives on.
>
> Byte Mad Moose
>
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