| Date | Mon, 19 Dec 2011 13:44:02 +0200 | From | Avi Kivity <> | Subject | Re: [RFC PATCH 0/4] Gang scheduling in CFS |
| |
On 12/19/2011 01:23 PM, Ingo Molnar wrote: > What's behind this huge speedup? Does ebizzy use user-space > spinlocks perhaps? Could we do something on the user-space side > to get a similar speedup?
kvm tries to detect spinlocks (by trapping repeated executions of PAUSE) and yield to a related vcpu. It's far from perfect however, and relies on the spinlock code using PAUSE.
-- error compiling committee.c: too many arguments to function
|