I tried to replicate this benchmark on threadripper 2950x, 16 cores, 32gb 3000mhz 14cl, samsung 860 nvme, XFS. I was never able to achive more than 3100 tps, e

I tried to replicate this benchmark on threadripper 2950x, 16 cores, 32gb 3000mhz 14cl, samsung 860 nvme, XFS. I was never able to achive more than 3100 tps, even with -march=native -O3 -flto, large wal and shared_buffers, without selinux and THP - I was always bottlenecked by 1 progres process staying in IOWait. I moved data directory to ramdisk and got: [pgbench -c10 -j 2]: progress: 60.0 s, 26819.3 tps, lat 0.371 ms stddev 0.119. with LA of mere 4. [pgbench -c30 -j 2]: progress: 60.0 s, 41572.7 tps, lat 0.720 ms stddev 0.390 How do you guys get this crazy performance? Could this be that your RAID fsyncs are not really syncing?