In article , Eric Stevens
wrote:

On my Mac, not the iPad, Lightroom was not running, so;
Step #1: Open Lightroom: 27.58 seconds

yikes. you have a very slow hard drive.

for me, it's about 4 seconds cold launch from an ssd. i did not
time it to 100th second accuracy, though.

I've got an SSD and from the first click to being ready to edit was
about 13 seconds.

then something is *very* wrong.

is it connected via usb 2?

Samsung SSD 950 PRO 512GB [Hard drive] (512.11 GB) -- drive 1, s/n
0025_3856_61B0_14D5.

that doesn't answer the question.

It's on the motherboard.

no it isn't.

No doubt you will now quibble about what you understood 'by on the
mother board'.

you're not one to talk about quibbling.

The Samsung SSD "cutting-edge V-NAND-based NVMe SSD
supports PCI Express** Gen 3 x4" is mounted on the motherboard.

mounted on doesn't mean it's part of.

the optical drive and hard drive (now an ssd) in my old macbook are
mounted on the logicboard (with screws), so by your definition, they
are part of the logicboard. they are not.

I am
surprised that you should even think of USB 2 in that context.

you said it took 13 seconds to launch lightroom from an ssd.

that's slow as **** and not consistent with ssd performance.

usb 2 would be an explanation for such abysmal speeds, which is why i
asked.

just for kicks, i launched photoshop cs2 on a 12 year old powerpc g4
mac mini which has a 100 mbit parallel ata interface (which even when
new was not the fastest mac), and it took about 20 seconds for cold
launch and 10 seconds for hot launch.

if you're seeing 13 second launch times with an ssd in a modern (i.e.,
fast) computer, something is very, very wrong. return it for a refund
if it's not too late.

your ssd is a separate and removable device connected to the logic
board, which means it's not as fast as it could be if it actually was
part of the logicboard, as it is on some macs.

They still have to finish up with a PCI3x4 interface or similar at the
SSD.

by integrating the ssd, it can be faster, and benchmarks show that to
be the case.

While LR is on the SSD the images and the catalog are on spinning
rust.

the catalog should also be on the ssd.

I see the point but I'm not concerned to screw the last bit of
performance out of catalog read/writes.

nor should you bother, because you have far bigger problems to resolve
regarding ssd performance.



Also, I have just discovered that using the GPU for processing was not
turned on. Turning that on reduced the start up to about 7 seconds.

enabling the gpu shouldn't affect launch time, but 7 seconds is still
very slow.

is that a cold launch or a hot launch?

a hot launch will be much faster and that's probably the difference
you're seeing. reboot the computer so that it's a cold launch both
times and then compare.

It seems to be a cold launch.

how do you know what has and has not been cached?