JCC Erratum Impact On Skylake Xeon Scalable Plus The Patched Assembler

[phoronix]

Phoronix: JCC Erratum Impact On Skylake Xeon Scalable Plus The Patched Assembler

Last week ago we provided a number of benchmarks looking at the performance impact from Intel's Jump Conditional Code (JCC) Erratum that required a CPU microcode update to mitigate but that comes with a performance hit. At least Intel has pending GNU Assembler patches to help offset that performance hit. In time for last week's articles I didn't have a chance to perform Skylake Xeon Scalable (1st Gen) benchmarks but now here are some metrics alongside Cascade Lake...

http://www.phoronix.com/scan.php?page=news_item&px=Skylake-Xeon-Scalable-JCC

[timofonic]

Poor Intel, so vulnerable...

[coder]

...

Thanks for the benchmarks, but kernel (or other) compilation would've been really nice to see.

[Weasel]

I hope this shit never gets upstreamed. Maintainers, do something right for once and reject it.