On Mon, 3 Dec 2018 14:33:08 +0200
Andrii Anisov wrote:
Hi Andrii,
> On 29.11.18 14:14, Andre Przywara wrote:
> > Nah, please don't do this.
> Sorry for making you crying looking at this code.
> It's terrible, I know. It's rather an idea.
>
> > Can you show that atomic bit ops are a
> >
On 03/12/2018 13:05, Andrii Anisov wrote:
Hello Julien,
On 03.12.18 14:58, Julien Grall wrote:
That's micro optimizing Xen... there are better (and less risky) place to look
for optimization.
I would appreciate you point me those places.
I already pointed them in various threads with you.
Hello Julien,
On 03.12.18 14:58, Julien Grall wrote:
That's micro optimizing Xen... there are better (and less risky) place
to look for optimization.
I would appreciate you point me those places.
Knowing how fragile the locking is on the old vGIC, the risk of
micro-optimizing is not worth
Hi Andrii,
On 03/12/2018 12:33, Andrii Anisov wrote:
On 29.11.18 14:14, Andre Przywara wrote:
Nah, please don't do this.
Sorry for making you crying looking at this code.
It's terrible, I know. It's rather an idea.
Can you show that atomic bit ops are a
problem? They shouldn't be expensive
Hello Andre,
On 29.11.18 14:14, Andre Przywara wrote:
Nah, please don't do this.
Sorry for making you crying looking at this code.
It's terrible, I know. It's rather an idea.
Can you show that atomic bit ops are a
problem? They shouldn't be expensive unless contended, also pretty
lightweight
Hi,
On 29/11/2018 12:14, Andre Przywara wrote:
On Wed, 28 Nov 2018 23:32:05 +0200
Andrii Anisov wrote:
Hi,
From: Andrii Anisov
All bit operations for gic, vgic and gic-vgic are performed under
spinlocks, so there is no need for atomic bit ops here, they only
introduce excessive call to
On Wed, 28 Nov 2018 23:32:05 +0200
Andrii Anisov wrote:
Hi,
> From: Andrii Anisov
>
> All bit operations for gic, vgic and gic-vgic are performed under
> spinlocks, so there is no need for atomic bit ops here, they only
> introduce excessive call to functions used more expensive exclusive
>
From: Andrii Anisov
All bit operations for gic, vgic and gic-vgic are performed under
spinlocks, so there is no need for atomic bit ops here, they only
introduce excessive call to functions used more expensive exclusive
ARM instructions.
Signed-off-by: Andrii Anisov
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