[cairo-bugs] [Bug 66783] cairo-perf does not deal with cpus larger then 1024 well.

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Wed Jul 10 10:01:13 PDT 2013


https://bugs.freedesktop.org/show_bug.cgi?id=66783

--- Comment #1 from Chris Wilson <chris at chris-wilson.co.uk> ---
If CPU_SETSIZE doesn't match the value as used by the kernel,
sched_getaffinity() is meant to return -EINVAL. Is that the case on your
system?

I don't think check_cpu_affinity() is particularly relevant when benchmarking,
the impact of thread placement is interesting to study, but it is unclear that
actually suggesting a particular placement is beneficial. So I can either fixup
check_cpu_affinity() to ignore EINVAL or simply move the warning into the
README.

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