I always find comparisons with tcmalloc hard to parse, since it has a million knobs and the defaults are terrible. If they are running with 16 threads I would n

I always find comparisons with tcmalloc hard to parse, since it has a million knobs and the defaults are terrible. If they are running with 16 threads I would normally advise increasing the thread cache size far above the default 3MiB. also interesting would be jemalloc in per-CPU mode. As always the thing to do is build and run your own workload and see the results.