Now I'm exporting to Samsung's new 960 PRO PCIe SSD, and I expected some major speed improvements. Instead, things are much, much slower.
OS is running on an 850 PRO SSD, and the cache/catalog is all kept on the 960 PRO - which should be fast enough to handle that+exports.
The speed of the disk only should have a trivial impact on export speed. Nevertheless, as an experiment, to see if something is wrong, try exporting to a different disk.
Also, how many files are you trying to export at once? How big are these files in megapixels (do not tell me megabytes)?
Thanks for the reply.
I tried exporting to the same external drive that worked faster prior to the LR update, this export is slow as well. So something probably is wrong with their coding.
If not disk speed, then what does export speed depend on? During this upgrade I replaced both a hard drive and the CPU.
This was a small export task. 60 JPG images totaling 599 MB. In the past, I've exported many more in the time it took to export these few.
Export speed is almost entirely driven by CPU speed.
This was a small export task. 60 JPG images totaling 599 MB.
And I specifically asked for megapixels, I specifically said I don't want you tell me megabytes, and you told me megabytes and not megapixels. Could you tell me how large a typical photo is in megapixels?
Sorry about that, doing 4 things at once! Canon T5i RAWS being exported as JPG's in this case: 3456x5184 for each photo = 17.92 Megapixels.
Should be small, quick work.
So I guess my last question is: exactly how long does it take to export these 60 images?
It took 5 minutes and 29 seconds to export the 60 photos.
Just as another test I tried creating an HDR with three images. This function is noticeably FASTER than it was before I upgraded and it took approx 6 secs to create the preview and then 6 secs to generate the HDR image. At least that works!
So ... 5 seconds per exported file?
Actually 5.483 seconds per exported file?
While I believe you when you say it was faster on your other computer, I don't think this is performance that is a flaw in the software or represents a hardware problem, this sounds like decent acceptable performance to me.
Dunno, DJ - admittedly not in batch, but full-sized 7D Mk II files exported to full-sized 16 bit tiff take under 3 seconds on my modest (16 gb) Win 8.1 machine - and this is writing to average speed external HDDs, and my internal OS drive not being an SSD.
I'll batch up a bunch of them tonight and see what difference that makes. That said, I've run batch jobs before and wasn't conscious of any obvious difference - Lr seems to rattle through them very happily.
That's good information. May I ask what your CPU is? Because that's the thing that should really determine how fast the import will go, the speed of the disk plays a very small role.
And yes, when exporting, the amount and type of editing also can slow things down, photos with noise removal, sharpening, lens corrections, lots of brushing, lots of radial filters, lots of spot healing, will take longer to export than the same photos without those types of edits. Image content also plays a role.
I always run batch jobs ranging from 60 photos to 600+, and never has anything taken this long. As for my inputs, for this set it was just basic color correction, chromatic aberration removal, and sharpening. With my old processor this would run faster, so it really looks like an adobe bug to me. I work with lightroom almost daily and so the difference in speed was immediately obvious. Something strange is going on. Or maybe there's some esoteric setting that changed after the last update. Tried it again today after doing a windows update, and no change there either.