redhat: configs: decrease CONFIG_PCP_BATCH_SCALE_MAX

Rafael Aquinirequested to merge
raquini/kernel-ark:RHEL-59526 into os-build

In page allocator, PCP (Per-CPU pageset) is refilled and drained in batches. The batch number is scaled automatically to improve page allocation/free throughput. But a too large scale factor may end up hurting latency, like observed on https://issues.redhat.com/browse/RHEL-59526.

We're bringing this down to 0 for RHEL, to provide a smooth linear scaling factor as opposed to the default exponential scaling factor.

Signed-off-by: Rafael Aquini raquini@redhat.com

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