Bug 382993

Summary: 32 bit EXR file opening time needs little improvement
Product: [Applications] krita Reporter: Alex <eneeen>
Component: File formatsAssignee: Krita Bugs <krita-bugs-null>
Status: REPORTED ---    
Severity: wishlist    
Priority: NOR    
Version First Reported In: 4.0 pre-alpha   
Target Milestone: ---   
Platform: Other   
OS: All   
Latest Commit: Version Fixed/Implemented In:
Sentry Crash Report:
Attachments: sample exr to test file load time.

Description Alex 2017-08-01 10:28:04 UTC
Created attachment 107005 [details]
sample exr to test file load time.

On my PC (i7 4770k) loading 4k EXR takes about 5 seconds, but Krita is ready for painting in about next 10 seconds.
I've compared it to PS and it loads EXR below 1 second and is ready immediately.
Hope it can be improved. Sample EXR attached.
Comment 1 Alex 2018-09-17 06:40:26 UTC
I've checked larger file and 19k HDR takes here about 120 seconds to load. PS loads this file in about 8 seconds and seems not to be multithreaded here, takes about 15-16% of my CPU.