Re: [PATCH] X86/CPU: Avoid 100ms sleep for cpu offline during S3

[Borislav Petkov]

On Tue, Aug 05, 2014 at 05:29:18PM +0800, Lan Tianyu wrote:
> I think you can pull Tod's tool from git hub and do test from your
> laptop. I attached a configure file come from ubuntu which is easier
> to produce the issue. You can use it to reproduce the issue.

Right, so I ran it on an old dualcore AMD laptop I have lying around
here and it didn't show any difference with or without your patch.

For all 4 runs I did with the tool running it without any arguments (so
it did the default thing), I got suspend time for CPU1 of 4-6 msec and
resume of ~20msec.

I don't know whether it is the dual core or AMD but your patch doesn't
change anything on that laptop which is ok, I'd guess.

> Ok. BTW, I have tested it on the Ivbridge and Haswell machines.

Yeah, add those numbers to the commit message too.

Thanks.

-- 
Regards/Gruss,
    Boris.

Sent from a fat crate under my desk. Formatting is fine.
--
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/