Re: kvm-unit-test failures

[Chris J Arges <chris.j.arges@canonical.com>]

<snip>
> I'm not sure about the reason for the warp, but indeed the offset and
> uptime match (I'll check them against the trace tomorrow) so it's "just"
> that the VM's TSC base is not taken into account correctly.
> 
> Can you gather another trace with the problematic patch reverted?
> 
> Paolo
> 

Here is the third trace running with 0d3da0d2 reverted from the latest
kvm queue branch 11cc9ea3:

http://people.canonical.com/~arges/kvm/trace-3.dat.xz

$ uptime
 18:25:13 up 5 min,  1 user,  load average: 0.21, 0.74, 0.44

qemu-system-x86_64 -enable-kvm -device pc-testdev -device
isa-debug-exit,iobase=0xf4,iosize=0x4 -display none -serial stdio
-device pci-testdev -kernel x86/kvmclock_test.flat -smp 2 --append
10000000 1409768537
enabling apic
enabling apic
kvm-clock: cpu 0, msr 0x:44e520
kvm-clock: cpu 0, msr 0x:44e520
Wallclock test, threshold 5
Seconds get from host:     1409768537
Seconds get from kvmclock: 1409768538
Offset:                    1
Wallclock test, threshold 5
Seconds get from host:     1409768537
Seconds get from kvmclock: 1409768538
Offset:                    1
Check the stability of raw cycle ...
Total vcpus: 2
Test  loops: 10000000
Total warps:  0
Total stalls: 0
Worst warp:   0
Raw cycle is stable
Monotonic cycle test:
Total vcpus: 2
Test  loops: 10000000
Total warps:  0
Total stalls: 0
Worst warp:   0
Measure the performance of raw cycle ...
Total vcpus: 2
Test  loops: 10000000
TSC cycles:  1241970306
Measure the performance of adjusted cycle ...
Total vcpus: 2
Test  loops: 10000000
TSC cycles:  3266701026
Return value from qemu: 1