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When all eyes are now looking to the future of branch prediction, this launch will be a bit obfuscated. Does the Intel Xeon inside the iMac Pro also vulnerable?
by woliveirajr 9y ago
When all eyes are now looking to the future of branch prediction, this launch will be a bit obfuscated. Does the Intel Xeon inside the iMac Pro also vulnerable? If so, the impact of the T2 will not get attention as it should.
- ovao 9y agoApple addresses the (known) vulnerabilities in the 10.13.2 and 10.13.3 updates.
- rodorgas 9y agoHigh Sierra fixed the KPTI issue without perfomance loss: https://twitter.com/aionescu/status/948609809540046849 https://twitter.com/aionescu/status/948609809540046849
- rsynnott 9y ago"Without performance loss" sounds optimistic, but most things that people would be doing with a Mac likely aren't syscall-intensive enough to show major effects, especially on modernish chips with PCID. Most of the more impressive performance drops from the Linux patch are with things like heavy database workloads.