Starting from version 0.2, opening jxl files has become long

[sn260591]

Maybe this is due to the lack of support for AVX2 and FMA instructions on my processor.

[Frozenkex]

Same on Haswell cpu (4670k). As in thumbnails generate more slowly with the newer versions.

[saschanaz]

tirr-c/jxl-oxide#202 reports some perf issue too, might be related.

[eddiezato]

I can't say I've noticed a longer opening.

But the CPU is more loaded. I have a tray temp icon for my 5700x. With v0.1.19 it doesn't get hotter than 45-50 Celsius when flipping images. With the latest from main the temp reaches 65.

[saschanaz]

That still means your CPU had to work more with newer versions, I'd say that's based on the same problem.

[mindaugasvcs]

Not useable anymore. JPEGView64 is much, MUCH faster!

[Mingo-coder]

Thank you so much for creating this "Issue" thread here.... I had completed converting all my jpegs and saving about 100gbs in the process and a year later...was baffled to see no progress at all in the JXL world.

to be specific... for my intel 12th gen 12500h...a 16 thread cpu... latest version took more than a minute to thumb a page with 45% load on all 16 threads.
Things got better just now since installing 0.1.19 that it takes just about 6 seconds now and the fans don't even get loud at all.

another thing i found today that was much as surprising...was the incredible speed of photo viewer JPEGView compared to IrfanView.
I swore by IrfanView for a long time but I didn't even hesitate a bit in switching my default viewer to JPEGView for all types of photos.

A strange day for me since I could have made my life easy a year ago.