** Description changed: [Impact] - Change flush from congruence-first with dependencies to linear with - no dependencies, which increases flush performance by 8x on P8, and - 3x on P9 (as measured with null syscall loop, which will have the - flush area in the L2). + Change flush method from "congruence-first with dependencies" to "linear with no dependencies", which increases flush performance by 8x on P8, and + 3x on P9. Measured with null syscall loop, which will have the flush area in the L2 cache. The flush also becomes simpler and more adaptable to different cache geometries. [Test Case] TBD. [Regression Potential] The risk is deemed low since the changes are confined to POWER only and the provided test kernels have been tested by IBM.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1744173 Title: rfi-flush: Switch to new linear fallback flush To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-power-systems/+bug/1744173/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
