On 18/05/13 17:44, Colin Percival wrote:
> On 05/18/13 02:50, Roger Pau Monné wrote:
>> On 17/05/13 05:07, Colin Percival wrote:
>>> On 05/16/13 17:43, Roger Pau Monné wrote:
>>>> Thanks for testing this on EC2, could you post the full dmesg? So I can
>>>> see the hypervisor version and if the PV timer is loaded or not.
>>> Here's what I get on a cc2.8xlarge with boot_verbose=YES:
>> I've pushed a new branch to my repository, pvhvm_v7 that should work,
>> there was a bug with PCI event channel interrupt set up. I've tested
>> with 3.4 and seems OK, but of course it doesn't support the vector
>> callback injection.
> That seems to work.  dmesg is attached.  Are there any particular tests
> you'd like me to run?

I have not tested ZFS, that might be a good one. If you are running this
on Xen 3.4 the behaviour should be the same as without this patches, so
there shouldn't be many differences.

If you could try that on Xen 4.0 at least (if I remember correctly
that's when the vector callback was introduced), you should see the PV
timer getting attached, and a performance increase.

> If anyone else wants to play with this, you can launch ami-e75c358e in the
> EC2 us-east-1 region.

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