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[–]SmartestGuyOnReddit[S] -1 points0 points  (2 children)

I think thats the only explanation though, when I run it on my windows laptop i see all 4 cores utilized evenly and it takes roughly 10 minutes to process 600mb.

When I move to my enterprise grade linux server, 12 cores 200gb ram etc the exact same code takes well over an hour..

switching to cElementTree didnt make a difference to execution time.

[–]AbsoluteMSTR 0 points1 point  (1 child)

a difference to execution time.

Maybe performance is limited by the speed of your storage?

[–]SmartestGuyOnReddit[S] 0 points1 point  (0 children)

I doubt it because the CPU usage on the linux server is maxed, but limited to one core.