On Tue, Dec 13, 2016, Thomas Gleixner <[email protected]> wrote: > On Mon, 12 Dec 2016, Linus Torvalds wrote: > On Mon, Dec 12, 2016 at 1:53 AM, Thomas Gleixner <[email protected]> wrote: >> It looks pretty self-contained (good), but it also looks majorly >> strange. I will have to think about this. What are the main/expected >> users? > - Virtualization so a VM can only trash only the associated part of the > cash w/o disturbing others > > - Real-Time systems to seperate RT and general workloads. > > - Latency sensitive enterprise workloads > > - In theory this also can be used to protect against cache side channel > attacks.
Quite a few companies and research groups are interested in the hardware feature and/or the resctrl file system interface. They do demonstrate performance and QoS improvements in real-time, VM, and native Linux by partitioning cache for processes to avoid noisy neighbors. Thanks. -Fenghua
