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
