>>> On 09.06.15 at 16:59, wrote:
> --- a/xen/include/xen/sched.h
> +++ b/xen/include/xen/sched.h
> @@ -110,8 +110,8 @@ struct evtchn
> u8 priority;
> u8 last_priority;
> u16 last_vcpu_id;
> -#ifdef XSM_ENABLE
> union {
> +#ifdef XSM_ENABLE
> #ifdef XSM_NEED_GENERIC_EVTCHN_SSID
The number of struct evtchn in a page must be a power of two. Under
some workloads performance is improved slightly by padding struct
evtchn to 64 bytes (a cache line), thus putting the per-channel locks
into their own cache line.
This does not decrease the number of struct evtchn's per-page.
Si
