Linux has introduced the Pressure Stall Information[1] which completely replaced the classic cpu/mem percentage metrics for me. With PSI you see upfront where t

Linux has introduced the Pressure Stall Information[1] which completely replaced the classic cpu/mem percentage metrics for me. With PSI you see upfront where the bottleneck is. And it inherently accounts for factors like cpu frequency regulation or the disk cache. The PSI data also has a value (total=) that is not averaged, so you can now see cpu jitter and spikes. [1] https://docs.kernel.org/accounting/psi.html https://docs.kernel.org/accounting/psi.html