Hello.
Problem.
I've just started to convert 16 years' worth of Canon RAW files to compressed DNG to save space. I'm using the latest DNGC build 17.1 and noticed that on my main workstation, it struggles with having so many cores. The program assigns a conversion to each CPU thread, so my PC is loading 48 RAW files at a time. The Task Manager is showing 100% CPU and 50% RAM.
When I run DNGConverter on my two Acer laptops and an old Intel PC from 2017, I get better performance, so something is definitely not right.
If I run the conversion from the Samsung SSD 990 PRO 4TB drive, the performance is okay. But all my files are on many external HDDs connected via USB3. What I can gather is that USB3 is causing a bottleneck, and having so many RAW files loaded at once into 48 threads is also bottlenecking.
Fixed it?
After some tests, it seems that if I boot Windows via msconfig with only 12 cores selected, the CPU is at 98% to 100% and memory is at 15% to 20%, so there is plenty of RAM headroom. Now DNGConverter is flying along, processing the RAW files very quickly.
This seems to be a solution for my CPU. If anyone has any thoughts on this, please comment on the thread.
Thanks.
Spec.
US
Windows 11 Pro 24H2
CPU
AMD Ryzen Threadripper 3960X
RAM
112GB DDR4 @ 1051MHz (15-15-15-36)
Motherboard
ASUSTeK COMPUTER INC. PRIME TRX40-PRO S
Graphics
DELL UP2516D (2560x1440@59Hz)
4091MB NVIDIA GeForce RTX 4060 Ti (NVIDIA)
Storage
4TB Seagate ST4000NE001-2MA101
4TB Western Digital WDC WD4003FRYZ-01F0DB0
1TB Samsung SSD 970 EVO Plus 1TB
4TB Samsung SSD 990 PRO 4TB
0.5TB Samsung SSD 980 PRO 500GB
1TB Samsung SSD 990 PRO 1TB
Optical Drives
PIONEER BD-RW BDR-S09
HL-DT-ST BD-RE BH16NS40
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