Messages in this thread | | | Subject | Re: [PATCH 0/5] Add a dirty logging performance test | From | Paolo Bonzini <> | Date | Fri, 6 Nov 2020 13:48:29 +0100 |
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On 28/10/20 00:37, Ben Gardon wrote: > Currently KVM lacks a simple, userspace agnostic, performance benchmark for > dirty logging. Such a benchmark will be beneficial for ensuring that dirty > logging performance does not regress, and to give a common baseline for > validating performance improvements. The dirty log perf test introduced in > this series builds on aspects of the existing demand paging perf test and > provides time-based performance metrics for enabling and disabling dirty > logging, getting the dirty log, and dirtying memory. > > While the test currently only has a build target for x86, I expect it will > work on, or be easily modified to support other architectures. > > Ben Gardon (5): > KVM: selftests: Factor code out of demand_paging_test > KVM: selftests: Remove address rounding in guest code > KVM: selftests: Simplify demand_paging_test with timespec_diff_now > KVM: selftests: Add wrfract to common guest code > KVM: selftests: Introduce the dirty log perf test > > tools/testing/selftests/kvm/.gitignore | 1 + > tools/testing/selftests/kvm/Makefile | 1 + > .../selftests/kvm/demand_paging_test.c | 230 ++--------- > .../selftests/kvm/dirty_log_perf_test.c | 382 ++++++++++++++++++ > .../selftests/kvm/include/perf_test_util.h | 192 +++++++++ > .../testing/selftests/kvm/include/test_util.h | 2 + > tools/testing/selftests/kvm/lib/test_util.c | 22 +- > 7 files changed, 635 insertions(+), 195 deletions(-) > create mode 100644 tools/testing/selftests/kvm/dirty_log_perf_test.c > create mode 100644 tools/testing/selftests/kvm/include/perf_test_util.h >
Queued, thanks.
Paolo
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