Google Publishes Latest Linux Core Scheduling Patches So Only Trusted Tasks Share A Core
Google engineer Joel Fernandes sent out the ninth version of their "core scheduling" patches for the Linux kernel that allows for allowing only trusted tasks to run concurrently on the same CPU core -- in cases where Hyper Threading is involved to safeguard the system against the possible security exploits.
Core Scheduling has been a popular topic since vulnerabilities like MDS and L1TF have come to light. Core Scheduling aims to make Hyper Threading safer and by only letting trusted tasks share a CPU core is a reasonable safeguard for still leaving Hyper Threading active on servers rather than disabling it in the name of security. DigitalOcean, Oracle, Google, and other major x86_64 players have all been interested in core scheduling and working on different solutions in order to keep HT/SMT active. Particularly for the major cloud server providers having to disable HT/SMT would be a big blow to their models.
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