Photoshop CS4 computer build.

net_tech wrote in post #8963183
hollis_f,

Take a look at this http://www.hardmac.com​/articles/298/page7 they are saying to avoid SSD for swap, but if you have no choice use it.

I must be reading a different version. This is what they say about swap files -

As a basic rule, one should define the amount of RAM in order to avoid swapping, with a disc-based HD or a SSD. IF you cannot avoid swapping, then store it on the SSD. Statistical studies performed by Microsoft have shown that with Windows, 98% of the swap-related accesses are performed in reading mode, with 67% of them for less than 4 KB and 88% of them for less than 16 KB. One the other side, 62% of writing procedures are related to files larger than 128 KB while 45% of them weight more than 1 MB (blogs.msdn.com). Such access profile seems optimal for a SSD, perfectly designed for such small reading requests (even if there are heavily fragmented), while performance should not be much affected by writing large files.

Which seems to be saying that ideally you should have enough RAM to negate the need for a swap file. If, however, that is not possible then your swap file is better on an SSD than on an HDD.

No, you read the same version, but i was referring to the paragraph titled
"Avoid unnecessary writing procedures" (page 7)
photoshop scratch file gets created when you open photoshop, written to when you open images and gets deleted when you close photoshop.

I meant to say “avoid SSD for scratch” in my post with the link to the article

net_tech wrote in post #8965242
No, you read the same version, but i was referring to the paragraph titled
"Avoid unnecessary writing procedures" (page 7)
photoshop scratch file gets created when you open photoshop, written to when you open images and gets deleted when you close photoshop.

I meant to say “avoid SSD for scratch” in my post with the link to the article

Ah, yes. Avoiding a lot of read/write operations. That does make sense.

To be honest, however, I don't worry too much about that. The newer SSDs, when used with Win7, don't really suffer performance degradation like the old drives did. And, as that same article suggests, we're likely to see some significant advances in speed and longevity in the coming years. So I can easily see myself replacing the current SSD with something bigger and faster in a couple of years.