Proposal:
Back in 2013, it was determined that caching the result of tuple_hash did not have any significant speedup.
However, a lot has changed since then, and in a recent experiment to add a tuple hash cache back in, the mdp benchmark increased by 86%.
Admittedly, there was no measurable improvement on any other benchmark, but it also seems to have no downside, including for memory usage when measured with max_rss.
Has this already been discussed elsewhere?
No response given
Links to previous discussion of this feature:
- [ ]