mbox series

[v8,0/4] KVM: selftests: randomize memory access of dirty_log_perf_test

Message ID 20221027205631.340339-1-coltonlewis@google.com (mailing list archive)
Headers show
Series KVM: selftests: randomize memory access of dirty_log_perf_test | expand

Message

Colton Lewis Oct. 27, 2022, 8:56 p.m. UTC 
Add the ability to randomize parts of dirty_log_perf_test,
specifically the order pages are accessed and whether pages are read
or written.

v8:

NOTE: Ricardo and, David please look again. Sean requested I remove
your Reviewed-by tags due to changes in the last round. Main change
was the interface for the RNG.

David: I made the default seed 1 since 0 isn't a valid input for this
pRNG.

Split random number generator from use in dirty_log_perf_test.c and
perf_test_utils.c

Colton Lewis (4):
  KVM: selftests: implement random number generator for guest code
  KVM: selftests: create -r argument to specify random seed
  KVM: selftests: randomize which pages are written vs read
  KVM: selftests: randomize page access order

 .../selftests/kvm/access_tracking_perf_test.c |  2 +-
 .../selftests/kvm/dirty_log_perf_test.c       | 57 ++++++++++++++-----
 .../selftests/kvm/include/perf_test_util.h    |  8 ++-
 .../testing/selftests/kvm/include/test_util.h |  7 +++
 .../selftests/kvm/lib/perf_test_util.c        | 32 +++++++++--
 tools/testing/selftests/kvm/lib/test_util.c   | 17 ++++++
 6 files changed, 99 insertions(+), 24 deletions(-)

--
2.38.1.273.g43a17bfeac-goog