From: Ben Gardon <bgardon@google.com>
To: linux-kernel@vger.kernel.org, kvm@vger.kernel.org,
linux-kselftest@vger.kernel.org
Cc: Paolo Bonzini <pbonzini@redhat.com>, Peter Xu <peterx@redhat.com>,
Andrew Jones <drjones@redhat.com>,
Peter Shier <pshier@google.com>,
Sean Christopherson <sean.j.christopherson@intel.com>,
Thomas Huth <thuth@redhat.com>, Peter Feiner <pfeiner@google.com>,
Ben Gardon <bgardon@google.com>
Subject: [PATCH 0/5] Add a dirty logging performance test
Date: Tue, 27 Oct 2020 16:37:28 -0700 [thread overview]
Message-ID: <20201027233733.1484855-1-bgardon@google.com> (raw)
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
--
2.29.0.rc2.309.g374f81d7ae-goog
next reply other threads:[~2020-10-28 1:48 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-10-27 23:37 Ben Gardon [this message]
2020-10-27 23:37 ` [PATCH 1/5] KVM: selftests: Factor code out of demand_paging_test Ben Gardon
2020-11-02 21:23 ` Peter Xu
2020-11-02 22:57 ` Ben Gardon
2020-10-27 23:37 ` [PATCH 2/5] KVM: selftests: Remove address rounding in guest code Ben Gardon
2020-11-02 21:25 ` Peter Xu
2020-10-27 23:37 ` [PATCH 3/5] KVM: selftests: Simplify demand_paging_test with timespec_diff_now Ben Gardon
2020-11-02 21:27 ` Peter Xu
2020-11-02 22:59 ` Ben Gardon
2020-10-27 23:37 ` [PATCH 4/5] KVM: selftests: Add wrfract to common guest code Ben Gardon
2020-10-27 23:37 ` [PATCH 5/5] KVM: selftests: Introduce the dirty log perf test Ben Gardon
2020-11-02 22:21 ` Peter Xu
2020-11-02 23:56 ` Ben Gardon
2020-11-03 1:12 ` Peter Xu
2020-11-03 22:17 ` Ben Gardon
2020-11-03 22:27 ` Peter Xu
2020-11-06 12:48 ` [PATCH 0/5] Add a dirty logging performance test Paolo Bonzini
2020-11-09 9:21 ` Andrew Jones
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