Introduce a new dev config option "osd_mclock_skip_benchmark" that
when set skips running the OSD benchmark on start-up. By default
this option is disabled. This is useful in the following scenarios:

 - Dev/CI testing,
 - Configurations that don't need QoS.

If the option is enabled, the default OSD iops capacity is read from
osd_mclock_max_capacity_iops_[hdd,ssd].

Fixes: https://tracker.ceph.com/issues/52025
Signed-off-by: Sridhar Seshasayee <sseshasa@redhat.com>

…city.

Update the steps in the mclock config reference document to manually
override an OSDs max IOPS capacity. Provide information on the alternative
ways to override the osd_mclock_max_capacity_iops_[hdd,ssd] options for
an OSD.

Fixes: https://tracker.ceph.com/issues/52025
Signed-off-by: Sridhar Seshasayee <sseshasa@redhat.com>

…ark option

Add a standalone test - test_activate_osd_skip_benchmark() in ceph-helpers.sh
that exercises the osd-mclock-skip-benchmark option.

Fixes: https://tracker.ceph.com/issues/52025
Signed-off-by: Sridhar Seshasayee <sseshasa@redhat.com>

Force a subset of tests that explicitly employ the filestore backend to
use WPQ scheduler. This is because mclock scheduler will not be
optimized for filestore.

Fixes: https://tracker.ceph.com/issues/52025
Signed-off-by: Sridhar Seshasayee <sseshasa@redhat.com>