A serious decrease in kernel performance 5.19, caused by defense against attack Retbleed

Engineer from VMware drew attention Linux core developers to a significant decrease in productivity when using the Linux nucleus 5.19. Testing of a virtual machine with a core of 5.19 surrounded by the VMware ESXI hypervisor showed a decrease in calculation performance by 70%, network operations by 30%and a storage of 13%, compared with the same configuration based on the nucleus 5.18.

as a reason for a decrease in productivity is called

/Media reports.