PL9 - reduced number of simultaneously processed images

I’ve got a 14" M1 Macbook Pro, and I’m trialing PL9.

For some reason my “Maximum number of simultaneously processed images” only has “1” and “2” as options. I’m pretty sure this used to be up to 12.

Curious if anyone else seeing this in their preferences who is running a machine similar to mine?

I have a MacBook Pro M4 Pro and I can go up to 4 simultaneous images.

I had also more possibilities previously, up to 12 in v8 (but never use them). Probably this is due to more intensive GPU usage for new AI possibilities.

Okay, yeah that’s interesting…
Given you’re on an M4 machine and you can only go up to 4 at a time, 2 at a time max seems proportional for mine.

Interesting I have an M4 iMac and can only process up to two.

@ColinG I am a Win 10 user and on my 5600G with an RTX2060 I am limited to 6 copies with PL9 trial, when once it was 24!?

Running tests we have two 50 image tests for high ISO images with 6 and then 3 copies and I got

so even 6 is 3 too many!?

With two copies running we have

I’ve definitely seen reviews saying that more is not always better with PL’s exports. You have to do your own testing to see where the sweet spot is. I don’t even do large exports very often. Just was surprised that it jumped down to so few, and was wondering if it was a bug or not!

@unchdxoly In the past I have only run high numbers of copies to investigate the “mess” that Win PhotoLab could get itself into and typically run with 3 copies on my 5900X (RTX 3060) and 2 copies on my 5600G(RTX2060) for normal exports.

The PL9 trial copy is installed on the 5600G and the tables above show very little difference for my images with ISOs ranging from as low as 1600 to as high as 25600 from my Micro Four Thirds G9 for 6, 3 and 2 export copies, i.e. 1 second difference between each test!?

How PhotoLab is calculating the “ceiling” I do not know but I agree that less copies works just fine for my machines.

As another datapoint. Running a 16" MacBook Pro with M4max chip and 48 MB RAM.

DP8 allowed up to 12, was running at 7 from previous tests.

DP9 allows up to 10, and defaulted to 3. Have not checked "optimum yet and probably will leave at 3. I am not doing many batch exports.