Yafang Shao <laoar.shao@xxxxxxxxx> writes: [snip] > > Why introduce a systl knob? > =========================== > > From the above data, it's clear that different CPU types have varying > allocation latencies concerning zone->lock contention. Typically, people > don't release individual kernel packages for each type of x86_64 CPU. > > Furthermore, for latency-insensitive applications, we can keep the default > setting for better throughput. Do you have any data to prove that the default setting is better for throughput? If so, that will be a strong support for your patch. > In our production environment, we set this > value to 0 for applications running on Kubernetes servers while keeping it > at the default value of 5 for other applications like big data. It's not > common to release individual kernel packages for each application. > [snip] -- Best Regards, Huang, Ying