Messages in this thread | | | From | Will Deacon <> | Subject | Re: [PATCH v7 0/7] arm_pmu: Use NMI for perf interrupt | Date | Mon, 28 Sep 2020 23:13:20 +0100 |
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On Thu, 24 Sep 2020 12:06:59 +0100, Alexandru Elisei wrote: > The series changes the arm_pmu driver to use NMIs for the perf interrupt > when NMIs are available on the platform (currently, only arm64 + GICv3). To > make it easier to play with the patches, I've pushed a branch at [1]: > > $ git clone -b pmu-nmi-v7 git://linux-arm.org/linux-ae > > The changes from v6 were minor, but I've still run the same tests on an > espressobin v7*. These are the results of running perf record -a -- sleep > 60 (all results show kernel symbols with overhead >= 1%): > > [...]
Applied to will (for-next/perf), thanks!
[1/7] arm64: perf: Add missing ISB in armv8pmu_enable_counter() https://git.kernel.org/will/c/490d7b7c0845 [2/7] arm64: perf: Avoid PMXEV* indirection https://git.kernel.org/will/c/0fdf1bb75953 [3/7] arm64: perf: Remove PMU locking https://git.kernel.org/will/c/2a0e2a02e4b7 [4/7] arm64: perf: Defer irq_work to IPI_IRQ_WORK https://git.kernel.org/will/c/05ab72813340 [5/7] KVM: arm64: pmu: Make overflow handler NMI safe https://git.kernel.org/will/c/95e92e45a454 [6/7] arm_pmu: Introduce pmu_irq_ops https://git.kernel.org/will/c/f76b130bdb89 [7/7] arm_pmu: arm64: Use NMIs for PMU https://git.kernel.org/will/c/d8f6267f7ce5
Cheers, -- Will
https://fixes.arm64.dev https://next.arm64.dev https://will.arm64.dev
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