is enabled. This helps with the monitor logs on larger clusters, that may get
many 'osd.X reported immediately failed by osd.Y' messages, and confuse tools.
+* The mclock scheduler has been refined. A set of built-in profiles are now available that
+ provide QoS between the internal and external clients of Ceph. To enable the mclock
+ scheduler, set the config option "osd_op_queue" to "mclock_scheduler". The
+ "high_client_ops" profile is enabled by default, and allocates more OSD bandwidth to
+ external client operations than to internal client operations (such as background recovery
+ and scrubs). Other built-in profiles include "high_recovery_ops" and "balanced". These
+ built-in profiles optimize the QoS provided to clients of mclock scheduler.
+
>=15.0.0
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