below I've put a better fake-data generator to get a consistent 2.5x slowdown (still not as bad as the 10x on the real data, but hopefully more representative of the problem.

IMHO, it would be best if you could figure out what's causing the 10x slowdown* and generate a fake file with that data. Perhaps anonymizing the original data would be an option?

* Update: By which I mean: which part of the original data is causing the slowdown.

In reply to Re^2: regex gotcha moving from 5.8.8 to 5.30.0? by haukex
in thread regex gotcha moving from 5.8.8 to 5.30.0? by mordibity

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