On 6/21/22 13:10, Matthew Miller wrote:
Phoronix credits this to those distros shipping with P-state
Performance by
default.
Yes, but I doubt that for several reasons: First, it's a claim without
evidence. That setting isn't the only difference between any two
systems tested. Second, the claim doesn't make any *sense*. Systems
with intel_pstate balanced aren't supposed to be noticeably slower for
sustained CPU intensive workloads. The intel_pstate driver is supposed
to scale the frequency up under load in the "balanced" configuration,
delivering performance when it is needed and power saving when it
isn't. Third, I can run their tests on my own system in an intel_pstate
performance mode and an intel_pstate balanced mode, and the test results
are nearly identical, which is the expected outcome.
If no one else does any testing sooner, I'll try to build an x86_64-v2
glibc and run some basic benchmarks when I take some time off of my day
job at the beginning of July.