A Look At The CPU Security Mitigation Costs Three Years After Spectre/Meltdown
Written by Michael Larabel in Software on 6 January 2021. Page 7 of 9. 26 Comments

If using the Linux kernel's perf benchmarks or stress-ng for testing primitive kernel performance like for system calls, there is a measurable difference across all processors tested but especially gruesome for the (older) Intel CPUs without any hardware protections.

The context switching performance for Intel CPUs regressed hard back in January 2018...


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