Pin vcpus to a host physical cpus in dirty_log_perf_test and optionally pin the main application thread to a physical cpu if provided. All tests based on perf_test_util framework can take advantage of it if needed. While at it, I changed atoi() to atoi_paranoid() in other tests, sorted command line options alphabetically, and added break between -e and -g which was missed in original commit. v4: - Moved boolean to check vCPUs pinning from perf_test_vcpu_args to perf_test_args. - Changed assert statements to make error more descriptive. - Modified break statement between 'e' and 'g' option in v3 by not copying dirty_log_manual_caps = 0 to 'e'. v3: https://lore.kernel.org/lkml/20220826184500.1940077-1-vipinsh@xxxxxxxxxx - Moved atoi_paranoid() to test_util.c and replaced all atoi() usage with atoi_paranoid() - Sorted command line options alphabetically. - Instead of creating a vcpu thread on a specific pcpu the thread will migrate to the provided pcpu after its creation. - Decoupled -e and -g option. v2: https://lore.kernel.org/lkml/20220819210737.763135-1-vipinsh@xxxxxxxxxx/ - Removed -d option. - One cpu list passed as option, cpus for vcpus, followed by application thread cpu. - Added paranoid cousin of atoi(). v1: https://lore.kernel.org/lkml/20220817152956.4056410-1-vipinsh@xxxxxxxxxx Vipin Sharma (4): KVM: selftests: Add missing break between 'e' and 'g' option in dirty_log_perf_test KVM: selftests: Put command line options in alphabetical order in dirty_log_perf_test KVM: selftests: Add atoi_paranoid() to catch errors missed by atoi() KVM: selftests: Run dirty_log_perf_test on specific CPUs .../selftests/kvm/aarch64/arch_timer.c | 8 +-- .../testing/selftests/kvm/aarch64/vgic_irq.c | 6 +- .../selftests/kvm/access_tracking_perf_test.c | 2 +- .../selftests/kvm/demand_paging_test.c | 2 +- .../selftests/kvm/dirty_log_perf_test.c | 64 +++++++++++++------ .../selftests/kvm/include/perf_test_util.h | 6 ++ .../testing/selftests/kvm/include/test_util.h | 2 + .../selftests/kvm/kvm_page_table_test.c | 2 +- .../selftests/kvm/lib/perf_test_util.c | 58 ++++++++++++++++- tools/testing/selftests/kvm/lib/test_util.c | 18 ++++++ .../selftests/kvm/max_guest_memory_test.c | 6 +- .../kvm/memslot_modification_stress_test.c | 4 +- .../testing/selftests/kvm/memslot_perf_test.c | 10 +-- .../selftests/kvm/set_memory_region_test.c | 2 +- .../selftests/kvm/x86_64/nx_huge_pages_test.c | 4 +- 15 files changed, 149 insertions(+), 45 deletions(-) -- 2.38.0.rc1.362.ged0d419d3c-goog
