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Re: [Xen-devel] [PATCH 1/4] xen/arm: gic: Ensure we have an ISB between ack and do_IRQ()

Hi Andrii,

On 12/3/18 2:36 PM, Andrii Anisov wrote:
On 03.12.18 15:53, Juergen Gross wrote:
On 03/12/2018 14:46, Andre Przywara wrote:
I think PERFCOUNTER is your friend.

CONFIG_LOCK_PROFILE and xen-lockprof on tools side?

Not sure it is still working, though. Its about 9 years since I wrote
and used it.
It does work. I've used it recently for this theme.
But it gave me unclear results, I did not match them with what I got from xentrace and rough lauterbach traces.

Can you expand it? What are the differences between the 3?


Julien Grall

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