[Haskell-cafe] long-range performance comparisons (GHC over the years)

[Thomas Miedema]

>
> I recently noticed a performance problem
>
...

What worries me is that such a regression
> had been sitting there for over a year
>

There are 215 open runtime performance
<https://ghc.haskell.org/trac/ghc/query?status=!closed&failure=Runtime+performance+bug&order=id>
tickets
(out of a total of 1655 open tickets, that makes 13%).

Compared to say new typesystem features, they don't get much attention.
Only a few were fixed
<https://ghc.haskell.org/trac/ghc/query?failure=Runtime+performance+bug&resolution=fixed&milestone=8.0.1&milestone=7.10.3&milestone=7.10.2>
this
year, most of them by Joachim Breitner (the new performance tsar
<https://ghc.haskell.org/trac/ghc/wiki/CodeOwners#CurrentOwners>?). He also
created https://perf.haskell.org/ghc.

In case you want to help out, start here:
https://ghc.haskell.org/trac/ghc/wiki/Newcomers.
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