Re: Time to merge scratch/correct-warning-pos into master, perhaps?

[Mattias Engdegård]

16 jan. 2022 kl. 17.18 skrev Alan Mackenzie <acm@muc.de>:

> Would you clarify, please.  50% of what?

A micro-benchmark for measuring `eq` performance takes 50 % longer to run on 
scratch/correct-warning-pos than on master.

> So if the Lisp EQ instruction is going to be matching
> half the time, there would be an overhead of 50% on just that
> instruction.  Presumably quite a bit less on a whole program.

The point of the micro-benchmark was to measure `eq` since that is what has 
become more expensive, and we want to know how much. It uses `memq` as a way to 
reducing other factors, but obviously `memq` itself is very much of interest as 
well.