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.
