Thanks Jonathon!
On Thu, Jul 25, 2024 at 11:59:02AM +0100, Jonathan Cameron wrote:
[snip]
> > > I think I understand why you want to configure caches. My question was
> > > about the connection to SMP.
> > >
> > > Say we run a guest with a single core, no SMP. Could configuring caches
> > > s
Hi Markus,
On Thu, Jul 25, 2024 at 10:51:49AM +0200, Markus Armbruster wrote:
[snip]
> >> What's the use case? The commit messages don't tell.
> >
> > i386 has the default cache topology model: l1 per core/l2 per core/l3
> > per die.
> >
> > Cache topology affects scheduler performance, e.g., k
On Thu, 25 Jul 2024 11:50:59 +0100
Jonathan Cameron wrote:
Resending as this bounced due (I think) to an address typo.
> Hi Markus, Zhao Liu
>
> From the ARM server side this is something I want to see as well.
> So I can comment on why we care.
>
> > >> This series adds a way to configure cac
Zhao Liu writes:
> Hi Markus,
>
> I realized I should reply this mail first...
>
> On Wed, Jul 24, 2024 at 01:35:17PM +0200, Markus Armbruster wrote:
>> Date: Wed, 24 Jul 2024 13:35:17 +0200
>> From: Markus Armbruster
>> Subject: Re: [PATCH 2/8] qapi/qom: Intro
Hi Daniel,
On Wed, Jul 24, 2024 at 10:03:02PM +0800, Zhao Liu wrote:
> Date: Wed, 24 Jul 2024 22:03:02 +0800
> From: Zhao Liu
> Subject: Re: [PATCH 2/8] qapi/qom: Introduce smp-cache object
>
> On Wed, Jul 24, 2024 at 01:47:16PM +0100, Daniel P. Berrang? wrote:
> > Date: W
Hi Markus,
I realized I should reply this mail first...
On Wed, Jul 24, 2024 at 01:35:17PM +0200, Markus Armbruster wrote:
> Date: Wed, 24 Jul 2024 13:35:17 +0200
> From: Markus Armbruster
> Subject: Re: [PATCH 2/8] qapi/qom: Introduce smp-cache object
>
> Zhao Liu writes:
&
On Wed, Jul 24, 2024 at 01:47:16PM +0100, Daniel P. Berrangé wrote:
> Date: Wed, 24 Jul 2024 13:47:16 +0100
> From: "Daniel P. Berrangé"
> Subject: Re: [PATCH 2/8] qapi/qom: Introduce smp-cache object
>
> On Wed, Jul 24, 2024 at 01:35:17PM +0200, Markus Armbruster wr
On Wed, Jul 24, 2024 at 01:35:17PM +0200, Markus Armbruster wrote:
> Zhao Liu writes:
>
> > Hi Markus,
> >> SmpCachesProperties and SmpCacheProperties would put the singular
> >> vs. plural where it belongs. Sounds a bit awkward to me, though.
> >> Naming is hard.
> >
> > For SmpCachesProperties
Zhao Liu writes:
> Hi Markus,
>
> On Mon, Jul 22, 2024 at 03:33:13PM +0200, Markus Armbruster wrote:
>> Date: Mon, 22 Jul 2024 15:33:13 +0200
>> From: Markus Armbruster
>> Subject: Re: [PATCH 2/8] qapi/qom: Introduce smp-cache object
>>
>> Zhao Liu writ
Hi Markus,
On Mon, Jul 22, 2024 at 03:33:13PM +0200, Markus Armbruster wrote:
> Date: Mon, 22 Jul 2024 15:33:13 +0200
> From: Markus Armbruster
> Subject: Re: [PATCH 2/8] qapi/qom: Introduce smp-cache object
>
> Zhao Liu writes:
>
> > Introduce smp-cache object so that
Zhao Liu writes:
> Introduce smp-cache object so that user could define cache properties.
>
> In smp-cache object, define cache topology based on CPU topology level
> with two reasons:
>
> 1. In practice, a cache will always be bound to the CPU container
>(either private in the CPU container
> diff --git a/hw/core/smp-cache.c b/hw/core/smp-cache.c
> new file mode 100644
> index ..c0157ce51c8f
> --- /dev/null
> +++ b/hw/core/smp-cache.c
> @@ -0,0 +1,103 @@
> +/*
> + * Cache Object for SMP machine
> + *
> + * Copyright (C) 2024 Intel Corporation.
> + *
> + * Author: Zhao Liu
Introduce smp-cache object so that user could define cache properties.
In smp-cache object, define cache topology based on CPU topology level
with two reasons:
1. In practice, a cache will always be bound to the CPU container
(either private in the CPU container or shared among multiple
con
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