Hi Vanessa,

Thank you very much for the pointer to Kempe (very cool project too!). Looks like the change to lookup and find cause the benchmarks to improve a little bit. See this comment for a graph showing the change: https://github.com/haskell/containers/pull/800#issuecomment-922134118

Best,
Callan

On Fri, 17 Sept 2021 at 16:59, Vanessa McHale <vamchale@gmail.com> wrote:

Hi Callan,

My toy compiler makes extensive use of IntMaps: on github https://github.com/vmchale/kempe or hackage https://hackage.haskell.org/package/kempe

Thanks!
Vanessa McHale

On 9/17/21 11:21 AM, Callan McGill wrote:
Dear all,

I am trying to investigate a recent change we would like to make to `lookup` in IntMap. I wanted to know if any of you had any examples of open source projects that make significant use of IntMap and have benchmarks or performance tests we could run to make sure this change does not introduce significant regressions.

Best,
Callan

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