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Re: [Xen-devel] [PATCH 08/60] xen/sched: introduce struct sched_resource
- To: Juergen Gross <JGross@xxxxxxxx>, "xen-devel@xxxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxxx>
- From: Dario Faggioli <dfaggioli@xxxxxxxx>
- Date: Fri, 19 Jul 2019 17:49:50 +0000
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- Delivery-date: Fri, 19 Jul 2019 17:50:20 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
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- Thread-topic: [Xen-devel] [PATCH 08/60] xen/sched: introduce struct sched_resource
On Tue, 2019-05-28 at 12:32 +0200, Juergen Gross wrote:
> Add a scheduling abstraction layer between physical processors and
> the
> schedulers by introducing a struct sched_resource. Each scheduler
> unit
> running is active on such a scheduler resource. For the time being
> there is one struct sched_resource per cpu, but in future there might
> be one for each core or socket only.
>
Ah, one more thing.
> +++ b/xen/common/schedule.c
> @@ -63,6 +63,7 @@ static void poll_timer_fn(void *data);
> /* This is global for now so that private implementations can reach
> it */
> DEFINE_PER_CPU(struct schedule_data, schedule_data);
> DEFINE_PER_CPU(struct scheduler *, scheduler);
> +DEFINE_PER_CPU(struct sched_resource *, sched_res);
>
I wouldn't expect this to change too much.
Therefore, does DEFINE_PER_CPU_READ_MOSTLY() make sense?
Regards
--
Dario Faggioli, Ph.D
http://about.me/dario.faggioli
Virtualization Software Engineer
SUSE Labs, SUSE https://www.suse.com/
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