With this Intel Thread Director Virtualization to ensure the VM can properly manage task placement between P and E cores, the feature ended up yielding around 14% better performance than the status quo. That 14% win was with the 3DMark benchmark running on a Windows VM.
You mean, they reduce the performance impact of meltdown&spectre fixes?
You forgot to mention the glibc/syslog backdoor discovered
Are the latest generation (11th onwards) of Intel CPUs still affected by any of these two vulnerabilities?