Can someone explain the meaning of the --max-flow-ctl parameter, do not understand how this percentage is calculated

what is the meaning of the --max-flow-ctl

Fan July 17, 2018, 9:08am 3

Can someone answer my question?

Topic		Replies	Views
Flow control state initiated by asynchronous traffic Percona XtraDB Cluster 5.x	6	1234	April 27, 2015
wsrep_flow_control_paused gets pretty high sometimes Percona XtraDB Cluster 5.x	1	4105	July 12, 2013
Percona Cluster and flow control Percona XtraDB Cluster 5.x	1	748	June 2, 2016
Flow Control Percona XtraDB Cluster 5.x	2	565	March 20, 2014
Percona XtraDB Cluster Percona XtraDB Cluster 5.x	7	1043	July 4, 2017