3 ms·

And it's true... Has Intel ever said "we guarantee that hyperthreads are entirely isolated from one another?"

• 3JPLW 7y ago
  One quick google later: https://www.intel.com/content/www/us/en/architecture-and-technology/hyper-threading/hyper-threading-technology.html https://www.intel.com/content/www/us/en/architecture-and-tec... > By combining one of these Intel® processors and chipsets with an operating system and BIOS supporting Intel® HT Technology, you can: > * Run demanding applications simultaneously while maintaining system responsiveness > * Keep systems protected, efficient, and manageable while minimizing impact on productivity
  • rrss 7y ago
    I have no idea what "keep systems protected" means (and probably neither did the person who wrote that). That statement is a long way from an actual guarantee that there is no way for one logical thread to extract information about another.
• andoriyu 7y ago
  All car makers put asterisk when talk about performance and mileage - it didn't help VW from being fined and prosecuted. We were given certain benchmark numbers and performance target and it all went to shit with a single microcode update. Somehow most people expect CPU not to give random javascript in the Internets a private key from encrypted file system. Intel got off so easy from that drama. Imagine a car marker selling you a car 4 seats, but when backseats are used you might lose steering? Would that be okay? No where it says you get 4 usable seats.