The end of hyperthreading is nigh https://www.zdnet.com/article/intel-cpus-impacted-by-new-portsmash-side-channel-vulnerability/ … (no mention if it affects @IBMPowerSystems which are big SMT users too).
-
-
Any architecture with any timing dependent on activity of other processes has a side channel, whether it’s caches, LAN, or the Internet itself.
Thanks. Twitter will use this to make your timeline better. UndoUndo
-
-
-
It is hard to validate that on a cloud provider, I think some of the low end AWS instances do share hyperthreads across clients.
Thanks. Twitter will use this to make your timeline better. UndoUndo
-
Loading seems to be taking a while.
Twitter may be over capacity or experiencing a momentary hiccup. Try again or visit Twitter Status for more information.