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32 Messages

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800 Points

Thu, Feb 7, 2019 11:13 AM

Photoshop: Speed handling big files

I work with files that are always a minimum of 1GB up to 20GB, the biggest problem is opening, saving and converting to 16bit. Id love to work in 16bit all the time but Photoshop is even worse that this bit depth. I can't reduce the number of layers nor can i reduce the resolution. With clients requesting bigger images this problem will only get worse. Disabling compression on the PSB helps with the write speed, however, a 250GB file isn't really a workable size.

The problem as i see it is the inability to use modern multi-core cpu's effectively. It can't be the read or write speed of the hard drives as SSD's have vastly improved this yet these problems don't go away.

Responses

7 Messages

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154 Points

2 years ago

Same issues with 16 bit files for years!
Disabling PSD compression saves time, but rises up the size values  + ~40%.
Multicore saves awaited since 2005...
Adobe! Begging :D
And the rest is silence...

27 Messages

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622 Points

5 months ago

Resurrecting this thread, as OP's comments are still valid, and with similar workflow I'm experiencing the same speed bottlenecks.

My 16bit PSB files are usually between 7 - 20 GB, sometimes up to 40 GB with disabled compression. I find disabling compression is faster, and don't mind the extra file size.

System - Mac Pro 7,1, 16core, 96GB RAM, Catalina. The data drive I currently use tests as 5000 MB/sec read, 6000 MB/sec write, tested on 64GB file. Photoshop 21.0.3 as I can't use 21.1.2 because of a bug.

In Photoshop, I'm only getting about 1100 MB/sec uncompressed PSB reads and about 900 MB/sec uncompressed PSB saves.

There's something that's holding the saves / reads back. I'd be very grateful if this could be looked into!

32 Messages

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800 Points

I was considering getting a very similar spec'd 7,1 system to you.
I'm guessing seeing as you posted here it wasn't worth the money for the performance increase. Is that fair or are you happy with the system?

27 Messages

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622 Points

I'm actually quite happy with it. Compared to 6,1 in Photoshop, working with big 16bit files feels much smoother and snappier. Filters are faster too.
Looking at activity monitors it seems it could be even faster, if the software used all its power.

In terms of price / cost comparison for Photoshop only I'm not sure whether it's better than maxed out latest regular iMac, I had the 6,1 previously. I like the upgradability of it, and use it for some video work too.

32 Messages

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800 Points

I'm using a maxed out 6,1 or a maxed out 2018 mac mini atm. Both struggle. I wonder if more than 64gb of ram would make a big difference

27 Messages

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622 Points

With big files probably yes, but can't really test it by taking out memory.

On 7,1 the configuration of sticks themselves affects the speed - it matters how many you have and whether you have mixed sizes. 6 or 12 of the same size is best. Check the Mac Pro forums on Mac Rumors for more info on these things.

32 Messages

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800 Points

Thanks, I read and post on that forum a lot. Most users don't seem high load photoshop users though.