Any observed impact to performance?
this post was submitted on 13 Aug 2023
136 points (100.0% liked)
Linux
48190 readers
1405 users here now
From Wikipedia, the free encyclopedia
Linux is a family of open source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991 by Linus Torvalds. Linux is typically packaged in a Linux distribution (or distro for short).
Distributions include the Linux kernel and supporting system software and libraries, many of which are provided by the GNU Project. Many Linux distributions use the word "Linux" in their name, but the Free Software Foundation uses the name GNU/Linux to emphasize the importance of GNU software, causing some controversy.
Rules
- Posts must be relevant to operating systems running the Linux kernel. GNU/Linux or otherwise.
- No misinformation
- No NSFW content
- No hate speech, bigotry, etc
Related Communities
Community icon by Alpár-Etele Méder, licensed under CC BY 3.0
founded 5 years ago
MODERATORS
It's anticipated to slow things down unfortunately
Seems like a lot of these "performance enhancing features" simply ignored security principles or tried to sidestep them, only for the features to introduce glaring security hole in the overall ISA, forcing people to then sidestep the supposed performance features so that it never mattered to begin with.
Are Intel, AMD and others pulling a fast one on us for the sake of gaining positive benchmarks?
If they were held liable, CPU manufacturers wouldn't use these crappy hacks to increase performance, which helps their bottom line. Now I'm a cynic, so I'll say that they might've done this on purpose.
According to amd only epic cpus benefit from the standalone microcode update. All others need an updated bios with the new microcode. Zen 1 and zen 2 don't need microcode updates. Also having the new microcode doesn't mitigate the vulernability on its own as far as I can tell, the kernel needs to be the one doing the mitigation.