----- "Conny Seidel" <conny.seidel@xxxxxxx> wrote: > Hi, > > I have some questions about the kvm-unit-tests results. > > Is there any advice how the results of tsc and kvmclock_test are to > interpret? For tsc, it first shows the latency of rdtsc, and then the result of rdtsc after giving two different values to the TSC. Currently, TSC test always succeed. For kvmclock, the tests contains three parts: First part is a test of wallclock which check whether the wallclock get from host match the value get from kvmclock. The test would show the value get both from guest and host and their offset. The test would fail if the offset were too large. Second part is a monotonic cycle growth test, it first tries to detect whether the cycle provided by the hyperviosr growth monotonically and shows the number of loops, warps and stalls. This detection just serve as a refrence and does not impact the result of test. Then it would try to let the kvmclock driver in guest to produce a monotonical growth cycle and check the result. The test would fail if warps were detected and the result were shown. The last part is just a performance test which measure the performance degredation when trying to correct the cycle supplied by hypervisor. It first measure the performance by just returning the cycle supplied by hypervisor and show the TSC cycle spent on this. And then measure the performance when driver tries to correct and produce a correct cylce. These two tests do not have impact on the result of test and are always considered success. I must admit the result of kvmclock_test may be not user-friendly. And seems Amos have post a patch to give a summary of kvmclock_test, does that satisfied your requirement? > > They both only print out some numbers and not, if the test has passed > or > failed. As a common rule, a zero value returned by qemu-kvm indicates a success of test otherwise a failure. > > Does it make sense, that I prepare some patches, to unify the output > of > all kvm unit tests? > > regards, > Conny > > ## > ################################################################## > # Email : conny.seidel@xxxxxxx GnuPG-Key : 0xA6AB055D # > # Fingerprint: 17C4 5DB2 7C4C C1C7 1452 8148 F139 7C09 A6AB 055D # > ################################################################## > # Advanced Micro Devices GmbH Einsteinring 24 85609 Dornach # > # General Managers: Alberto Bozzo, Andrew Bowd # > # Registration: Dornach, Landkr. Muenchen; Registerger. Muenchen # > # HRB Nr. 43632 # > ################################################################## -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
