Raw to JPG Batch Processing Gets Slower
I take high school sport photos for my daughter's school. It's not unusual for me to have 100-130 photos that I want to make the same baseline adjustments on.
I have an iMac (27-inch, Late 2013), Processor: 3.4 GHz Intel Core i5, and Memory: 24 GB 1600 MHz DDR3 and I should also state that I'm using Mac OS 10.11.1 on this computer with C1P v: 9.0.0.110. Raw files: Sony ARW.
What I've noticed is that after about 25 photos Capture One starts to slow down. When I look at the batch queue it will say 2-4 minutes, then as it works its way through the queue, the time just keeps increasing and the amount of time it takes to process the image goes from 8-10 seconds an image to 20-30 seconds, after a few more images that processing time climbs even higher and it's not unusual for me to see 40-50 minutes on the estimate to complete the job.
I have found that by pausing the batch queue, quitting Capture One, then restarting, I can immediately see the queue working properly again. However, the same symptoms quickly appear, so I play the stop the queue, and relaunch Capture One game.
Has anybody else seen this with RAW to JPG conversions? I keep thinking this looks like a memory leak somewhere.
I have an iMac (27-inch, Late 2013), Processor: 3.4 GHz Intel Core i5, and Memory: 24 GB 1600 MHz DDR3 and I should also state that I'm using Mac OS 10.11.1 on this computer with C1P v: 9.0.0.110. Raw files: Sony ARW.
What I've noticed is that after about 25 photos Capture One starts to slow down. When I look at the batch queue it will say 2-4 minutes, then as it works its way through the queue, the time just keeps increasing and the amount of time it takes to process the image goes from 8-10 seconds an image to 20-30 seconds, after a few more images that processing time climbs even higher and it's not unusual for me to see 40-50 minutes on the estimate to complete the job.
I have found that by pausing the batch queue, quitting Capture One, then restarting, I can immediately see the queue working properly again. However, the same symptoms quickly appear, so I play the stop the queue, and relaunch Capture One game.
Has anybody else seen this with RAW to JPG conversions? I keep thinking this looks like a memory leak somewhere.
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I see the same, both with C1P 8 and 9. C1P9 is slightly faster in this testing on a late 2012 i7 iMAC. Memory usage seems to be fine as it stays at about 10 GB.
I see more consistent time prediction when switching the GPU use off but it also does take longer and CPU usage is much higher (550% compared to 130% in my case). Monitoring temperatures I see the GPU temperature (with GPU usage) rises substantially (20+° C) and exporting slows down. If you stop exporting the GPU cools down pretty fast and you get initial speed.
As the initial exporting is much fast with GPU it would be great if one could limit the GPU usage so that the temp. rise is somewhat smaller. There are some reports that show that this issue has been solved by Apple for the late 2015 iMAC. They use the fan earlier and spin up faster - will not help see update below
Update: Did some more testing. Increasing the Fan Speed to max from the very beginning does not make a difference in performance but the GPU stays cooler. So temperature is NOT the issue. I do however see that the GPU processor loads is significantly reduced after about 1 minute on my system as well as I see that GPU memory is no longer released properly and overall usage grows continuously.0 -
Did some more testing and it seems that there is indeed a bug in the way GPU memory is released when using "auto auto" as settings for the OpenCL. With this settings on my machine the export of identical 36 MP Raw files to TIFF increases nearly linearly from initially 4 s to 187 s for image number 100.
With settings "never never" I get 9 s / export for all 100 images and a lot of noise as well as a locked up computer.
Neither option is nice and I submitted a bug report.
I can reproduce similar results with JPG exports a/o using C1P8.
Machine: iMAC (3.4 i7 24 GB, GTX 680 MX, 2 GB), OS-X 10.11.20 -
Definetely looks like and issue specific to GTX cards, because in my case on 3 different macs we got around 30% boost compared to 8 on export of huge number of images. 0 -
don't know if it's limited to GTX cards. I have a GT 750M (in an iMac) and I see a somewhat similar behaviour. Haven't done any thorough testing but the slow down is definitely there. A quick fix is to restart C1. But it's a bug nevertheless. 0 -
Sorry for saying it over and over again, but if you think that something is a bug, please open support case with C1 and post results here. 0 -
Just wanted to note there's a similar thread https://support.captureone.com/hc/en-us/community/posts/360009389538-Capture-One-20-really-SLOW- https://cheapessaywriter.co.uk and you can also try to cleared the batch queue history and processed a batch of small jpegs.
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