Looking At The Linux Performance Two Years After Spectre / Meltdown Mitigations

Written by Michael Larabel in Software on 13 January 2020. Page 8 of 11. 36 Comments
Spectre Meltdown 2020 Intel Desktop CPUs
Spectre Meltdown 2020 Intel Desktop CPUs
Spectre Meltdown 2020 Intel Desktop CPUs

A look at the code compilation impact on Ubuntu 20.04 LTS from these default mitigations while fortunately the latest-generation Xeon Platinum 8280 performance was unchanged.

Spectre Meltdown 2020 Intel Desktop CPUs

Even Perl performance is affected by Spectre / Meltdown.

Spectre Meltdown 2020 Intel Desktop CPUs
Spectre Meltdown 2020 Intel Desktop CPUs

Various operations of the GNU C Library remain slower on pre-Cascadelake as a result of the mitigations.


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