KPTI + Retpoline Linux Benchmarking On Older Clarksfield / Penryn ThinkPads

Written by Michael Larabel in Software on 11 January 2018 at 10:00 AM EST. Page 3 of 6. 35 Comments.
Linux Laptops Intel KPTI Linux Benchmarks
Linux Laptops Intel KPTI Linux Benchmarks
Linux Laptops Intel KPTI Linux Benchmarks

The Go build test saw its performance drop by a few percent with KPTI + Retpoline while the Golang JSON parsing and garbage collection tests were less affected on these Lenovo ThinkPad computers.

Linux Laptops Intel KPTI Linux Benchmarks

GraphicsMagick as another largely CPU-bound test didn't see a statistically significant change in performance.

Linux Laptops Intel KPTI Linux Benchmarks

Compiling the Apache web server was about 5% slower on the older ThinkPads while just shy of 2% slower on the X1 Broadwell laptop.

Linux Laptops Intel KPTI Linux Benchmarks

While the kernel compilation test came in at under 4% slower on the older laptops.

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