Originally posted by sophisticles
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Linux Fixing A "Hilarious/Revolting Performance Regression" Around Intel KVM Virtualization
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Originally posted by Gonk View PostUh, yeah, that's what they're doing. All the patches are to the kvm subsystem.
(It's like the whole climate-change thing: Worst-case scenario, what if it turns out that 97% of scientists are somehow wrong about human activity being the cause, and we end up making our industries more environmentally conscious, reducing our reliance on fossil fuels and our carbon output and greenhouse emissions, and just generally make the planet a cleaner, healthier, more pleasant place to live... "for nothing"? I guess we'll just have to take that chance.)
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Originally posted by iggy View PostUnless I'm reading this wrong, this only impacts nested virtualization ...
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Unless I'm reading this wrong, this only impacts nested virtualization which very few people use and even fewer people expect to perform well (especially on Intel CPUs). So it's unsurprising it has gone unfixed.
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Makes me want to laugh and vomit at the same time:
Linux Fixing A "Hilarious/Revolting Performance Regression" Around Intel KVM Virtualization​
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Linux Fixing A "Hilarious/Revolting Performance Regression" Around Intel KVM Virtualization
Phoronix: Linux Fixing A "Hilarious/Revolting Performance Regression" Around Intel KVM Virtualization
It's not too often that "fixes" to the Kernel-based Virtual Machine (KVM) are noteworthy but today is an interesting exception with among the KVM fixes sent in today ahead of the Linux 6.13-rc3 tagging is for beginning to deal with a "hilarious/revolting" performance regression affecting recent generations of Intel processors. This performance regression won't be fully worked around until Linux 6.14 but at least there is an interim step in place once the code is merged later today...
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