On Fri, Jul 31, 2020 at 03:42:34PM +0800, Jingyi Wang wrote: > With the development of arm gic architecture, we think it will be useful > to add some performance test in kut to measure the cost of interrupts. > In this series, we add GICv4.1 support for ipi latency test and > implement LPI/vtimer latency test. > > This series of patches has been tested on GICv4.1 supported hardware. > > Note: > Based on patch "arm/arm64: timer: Extract irqs at setup time", > https://www.spinics.net/lists/kvm-arm/msg41425.html > > * From v2: > - Code and commit message cleanup > - Clear nr_ipi_received before ipi_exec() thanks for Tao Zeng's review > - rebase the patch "Add vtimer latency test" on Andrew's patch > - Add test->post() to get actual PPI latency > > * From v1: > - Fix spelling mistake > - Use the existing interface to inject hw sgi to simply the logic > - Add two separate patches to limit the running times and time cost > of each individual micro-bench test > > Jingyi Wang (10): > arm64: microbench: get correct ipi received num > arm64: microbench: Generalize ipi test names > arm64: microbench: gic: Add ipi latency test for gicv4.1 support kvm > arm64: its: Handle its command queue wrapping > arm64: microbench: its: Add LPI latency test > arm64: microbench: Allow each test to specify its running times > arm64: microbench: Add time limit for each individual test > arm64: microbench: Add vtimer latency test > arm64: microbench: Add test->post() to further process test results > arm64: microbench: Add timer_post() to get actual PPI latency > > arm/micro-bench.c | 256 ++++++++++++++++++++++++++++++------- > lib/arm/asm/gic-v3.h | 3 + > lib/arm/asm/gic.h | 1 + > lib/arm64/gic-v3-its-cmd.c | 3 +- > 4 files changed, 219 insertions(+), 44 deletions(-) > > -- > 2.19.1 > > Pushed (to the new repo at https://gitlab.com/kvm-unit-tests/kvm-unit-tests.git) Thanks, drew
