Hi Ilya, On Mon, Jan 23, 2023 at 02:11:56PM +0600, ???? ??????? wrote: > I would start with big picture view > > 1) are CPUs utilized at 100% ? > 2) what is CPU usage in details - fraction of system, user, idle ... ? > > it will allow us to narrow things and find what is the bottleneck, either > kernel space or user space.
This was mentioned: the haproxy process uses about 1545% CPU under this load. Overall CPU utilization is 21% user, 0% nice, 37% sys, 18% spin, 0.7% intr, 23.1% idle The %sys is high. The %spin could indicate spinlocks and if so it's related to the kernel running in SMP and not necessarily being very scalable. Willy
