Benchmarking The Linux Mitigated Performance For Retbleed: It's Painful

Written by Michael Larabel in Software on 13 July 2022 at 02:30 PM EDT. Page 5 of 7. 74 Comments.
Intel   AMD Retbleed Linux Mitigated Impact
Intel   AMD Retbleed Linux Mitigated Impact
Intel   AMD Retbleed Linux Mitigated Impact

The context switching times are even more painful now with Retbleed mitigations on top of the prior mitigations the past four years.

Intel   AMD Retbleed Linux Mitigated Impact
Intel   AMD Retbleed Linux Mitigated Impact

Needless to say, the researchers are accurate in their assessments of the significant performance costs with mitigating Retbleed.

Intel   AMD Retbleed Linux Mitigated Impact
Intel   AMD Retbleed Linux Mitigated Impact
Intel   AMD Retbleed Linux Mitigated Impact
Intel   AMD Retbleed Linux Mitigated Impact

The Intel systems were also impacted in the cryptsetup crypto performance with the Retbleed mitigations.


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