[Qemu-devel] RE: [kvm-devel] [PATCH] Dynamic ticks

[Dor Laor]

>> I like it ;) I have some comments (and a reworked patch at the end):
>>
>
>And thanks a lot for that.
>
>>
>> Plus, in this way you change the behaviour from "always try RTC under
>> Linux" to "don't use RTC is dynticks is enabled".
>> Is this what you really want?
>
>I don't know whether this is what should be done, but it's what I
>wanted.
>I was not looking for a dynamic-ticks solution for every available time
>source, and considered the system's POSIX timer as a good enough
source.
>Am I wrong here?

Using dyn-tick should be the default option. Not only it saves ticks for
guests
with HZ < 1000, it improves the accurency and responsiveness of the
system.
There are also issues with address@hidden because of HPET inteference.