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OzPhotoMan
OzPhotoMan
Inspiring
April 7, 2022
解決済み

Photoshop performance

  • April 7, 2022
  • 返信数 1.
  • 450 ビュー

Hi all,

I am in the process of buying a new PC, primarily for Photoshop. The new box will have a high perfomance SSD as the system/app drive and a SATA SSD for scratch. Working files will be on an older, slower hard drive ATM.

 

While I am waiting for my new box, I did some tests on my wife's PC, a 3.9GHz/ 8Gb box with a SATA SSD for the system drive and app drive and an older hard drive for files.

 

On this box I opened a 1.3Gb file and timed saving it to both the system SSD and the other hard drive. Interestingly there was not much diffenrence in file saving times between the two, I was wondering why this might be. A difference of only 10 secs over 3 minutes.

 

TIA

 

Steve  

このトピックへの返信は締め切られました。
解決に役立った回答 OzPhotoMan

If the system drive is big enough, 1 TB or bigger, then no, you don't need it.

 

In the old days the advice was to have a separate scratch drive, but that was because of the physical constraints of moving a single read/write head over the spinning discs. That no longer applies, and today you can just put scratch on the system drive.

 

(It is sometimes argued that the added activity will shorten the life cycle of the SSD. In reality, there is constant read/write in your user account anyway, much more than any Photoshop scratch disk activity. And even now, when SSDs in various forms have dominated the market for many years, I still haven't heard of SSDs breaking down to any significant degree. I think that problem is exaggerated.)


Thanks.

返信数 1

D Fosse
Community Expert
D FosseCommunity Expert
Community Expert
April 7, 2022

Two things:

 

One, the SATA interface is slow, whether connected to an SSD or a spinning drive. The newer PCIe interface, which I assume you'll be getting, is dramatically faster. These drives are known as NVMe or PCIe M.2.

 

Do not use SATA for the Photoshop scratch disk! Putting scratch on the (NVMe) system drive is much faster and better. Just make sure it's big enough, 1 TB or so.

 

Two, saving a file is highly CPU-intensive. There's a lot of packaging going on, especially if you have file compression enabled. That's what takes up most of the time, the actual writing to disk is quickly done and just a fraction of the total save time.

 

Turning off compression for PSD/PSB can cut, say, a 3-minute save down to 15 or 20 seconds. The file gets bigger, but that's a big file anyway. As I usually say - if you worry about file sizes, you're in the wrong business.

 

 

 

 

OzPhotoMan
OzPhotoMan作成者
Inspiring
April 7, 2022

Thanks,

 

The new system drive will be a 1Tb M.2. I did not know PS compressed psd file, just tested it and save time was substantially less. Thanks for that tip.

 

I do have another program, MSFS2020 which I initially installed on my old box on a regular hard drive, when I moved it to a dedicated SATA SSD it improved performance by about 50% on that program.

 

I am on a very tight budget, so I'll check performance using the system drive and then see if i really need an M.2 SSd as a scratch. A small one is cheap enough.

 

Regards,

 

Steve 

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