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A comment on Imgdiff: Faster than the fastest pixel-by-pixel image difference tool. Parent comment

Re:Imgdiff: Faster than the fastest pixel-by-pixel image dif... by kripke on Saturday December 12, 2020 @06:54PM (#25402932)
I just skimmed through the code, but as far as I can tell, the main point is that this code is multi-threaded.

Which, sure, gets the job done faster than the single-thread `odiff` on a single image, but is quite irrelevant for a tool marketed for tests/CI where many images are likely to be compared in parallel already (and maybe a single core is even available).

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Re:Imgdiff: Faster than the fastest pixel-by-pixel image dif... by oefrha on Saturday December 12, 2020 @09:54PM (#25403913)
https://github.com/n7olkachev/imgdiff/blob/9b2a87e1b729c70b5...

Yep, uses as many goroutines as the number of CPUs, that's about it. Saying it's 3x faster or whatever in "benchmarks" without even saying what CPU is used in the benchmarks is just sketchy.

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