Re: heavily contended lwlocks with long wait queues scale badly

I was working on optimizing the LWLock queue in a little different way
and I also did a benchmarking of Andres' original patch from this
thread. [1]
The results are quite impressive, indeed. Please feel free to see the
results and join the discussion in [1] if you want.

Best regards,
Pavel

[1]
https://www.postgresql.org/message-id/flat/CALT9ZEEz%2B%3DNepc5eti6x531q64Z6%2BDxtP3h-h_8O5HDdtkJcPw%40mail.gmail.com