Commit f6baabdc authored by Anish Moorthy's avatar Anish Moorthy Committed by Sean Christopherson
Browse files

KVM: selftests: Fix nsec to sec conversion in demand_paging_test 



demand_paging_test uses 1E8 as the denominator to convert nanoseconds to
seconds, which is wrong. Use NSEC_PER_SEC instead to fix the issue and
make the conversion obvious.

Reported-by: default avatarJames Houghton <jthoughton@google.com>
Signed-off-by: default avatarAnish Moorthy <amoorthy@google.com>
Reviewed-by: default avatarOliver Upton <oliver.upton@linux.dev>
Reviewed-by: default avatarSean Christopherson <seanjc@google.com>
Link: https://lore.kernel.org/r/20230223001805.2971237-1-amoorthy@google.com


Signed-off-by: default avatarSean Christopherson <seanjc@google.com>
parent d8708b80

tools/testing/selftests/kvm/demand_paging_test.c

+1 −1
Original line number Diff line number Diff line
@@ -194,7 +194,7 @@ static void run_test(enum vm_guest_mode mode, void *arg) 
		ts_diff.tv_sec, ts_diff.tv_nsec);

	pr_info("Overall demand paging rate: %f pgs/sec\n",

		memstress_args.vcpu_args[0].pages * nr_vcpus /

		((double)ts_diff.tv_sec + (double)ts_diff.tv_nsec / 100000000.0));

		((double)ts_diff.tv_sec + (double)ts_diff.tv_nsec / NSEC_PER_SEC));



	memstress_destroy_vm(vm);