#217 Very slow performance comparing CSV files - 50x slower than CompareIt

[Dan Dascalescu]

I have two CSV files that only differ in the date format: YYYY-MM-DD HH:MM:SS vs. M/D/YYYY HH:MM.

KDiff3 takes 25 seconds to compare these files and freezes as seen in the screenshot.

CompareIt! does the job in half a second.

Meld never finishes, and BeyondCompare thinks files are compeletely different. Can KDiff3 do better?

[Dan Dascalescu]

SmartSynchronize takes 4.5 seconds, and Diffuse 1.5.

Kompare chokes.

And here's a blog post summarizing the state of Linux diff tools performance. Pretty appalling.