Anthony Liguori wrote:
I think this is a really nice and important patch set. Just a couple
things:
On Sun, 2007-08-19 at 00:02 +0200, Luca Tettamanti wrote:
In this case the dyn-tick minimum res will be 1msec. I believe it should
work ok since this is the case without any dyn-tick.
Actually minimum resolution depends on host HZ setting, but - yes -
essentially you have the same behaviour of the "unix" timer, plus the
overhead of reprogramming the timer.
Is this significant? At a high guest HZ, this is could be quite a lot
of additional syscalls right?
At HZ=1000, this adds a small multiple of 1000 syscalls, which is a
fairly small overhead. At HZ>1000 (only possible with a dyntick guest),
the current implementation doesn't cope at all, so we can't compare
overhead.
--
error compiling committee.c: too many arguments to function
