On 3/2/22 18:39, Jim Mattson wrote:
On Wed, Mar 2, 2022 at 3:26 AM Like Xu <like.xu.linux@xxxxxxxxx> wrote:
From: Like Xu <likexu@xxxxxxxxxxx>
Expand the boundary for "ref cycles" event test as it has
been observed that the results do not fit on some CPUs [1]:
FAIL: full-width writes: ref cycles-N
100000 >= 87765 <= 30000000
100000 >= 87926 <= 30000000
100000 >= 87790 <= 30000000
100000 >= 87687 <= 30000000
100000 >= 87875 <= 30000000
100000 >= 88043 <= 30000000
100000 >= 88161 <= 30000000
100000 >= 88052 <= 30000000
[1] Intel(R) Xeon(R) Platinum 8374C CPU @ 2.70GHz
Opportunistically fix cc1 warnings for commented print statement.
Signed-off-by: Like Xu <likexu@xxxxxxxxxxx>
This fix doesn't address the root cause of the problem, which is that
the general purpose reference cycles event is, in many cases,
decoupled from CPI. My proposed fix,
https://lore.kernel.org/kvm/20220213082714.636061-1-jmattson@xxxxxxxxxx/,
does.
Queued yours, together with Like's patch 2.
Paolo
