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S_x96x_S
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>Nem késett el ez a cikk egy kicsit?
>"As covered yesterday, there is improved STIBP code ..."Latest:
25 November 2018
"STIBP Patches Updated One Last Time Before Heading To Linux 4.20"
https://www.phoronix.com/scan.php?page=news_item&px=STIBP-Patches-Linux-4.20-V2"Long story short, the patches clear up that very dramatic performance drop saw earlier in the Linux 4.20 cycle. STIBP had been back-ported to existing supported stable series, but has already been reverted due to the performance tax while these new patches may eventually work their way into those LTS trees.
With the second version of the patches sent out today, there were changes to address review comments, renaming of the command-line option to spectre_v2_user=, the options for conditional STIBP and IBPB always modes, and other minor code changes. The V2 patches can be found on the kernel mailing list. Linus Torvalds is already calling for some documentation changes with this issue having caused him some grief with the performance hit not having been properly communicated back during the Linux 4.20 merge window.
Gleixner anticipates these V2 patches to be "hopefully the final version", so ideally in the week ahead we'll see the code merged in time for Linux 4.20-rc5, which still gives it a few weeks of time for testing before the stable Linux 4.20 debut in late December or early January."
majd meg látjuk - mi lesz végül.
Mottó: "A verseny jó!"
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ph Az Intel processzorok sebezhetőségeire készült tapaszok túl sok teljesítménybe kerülnek.
