On Thu, Apr 22, 2021, Kenta Ishiguro wrote: > To solve problems (2) and (3), patch 2 monitors IPI communication between > vCPUs and leverages the relationship between vCPUs to select boost > candidates. The "[PATCH] KVM: Boost vCPU candidiate in user mode which is > delivering interrupt" patch > (https://lore.kernel.org/kvm/CANRm+Cy-78UnrkX8nh5WdHut2WW5NU=UL84FRJnUNjsAPK+Uww@xxxxxxxxxxxxxx/T/) > seems to be effective for (2) while it only uses the IPI receiver > information. On the IPI side of thing, I like the idea of explicitly tracking the IPIs, especially if we can simplify the implementation, e.g. by losing the receiver info and making ipi_received a bool. Maybe temporarily table Wanpeng's patch while this approach is analyzed?
