The net_meter utility is a SQL
procedure that runs a network test procedure on every host of the
cluster. The network test procedure sends a message to every other
host of the cluster and waits for the replies from each host. After
the last reply is received the action is repeated. This results in
a symmetrical load of the network, all points acting as both
clients and servers to all other points.
in n_threads int,
in n_batches int,
in bytes int,
in ops_per_batch int)
The parameters have the following meaning:
: The number of network test instances started on each host. A
value of 4 on a cluster of 4 hosts would result in a total of 16
network test procedures spread over 4 processes.
: The number of message exchanges done by each network test
procedure. A message exchange consists of sending one request to
every other host of the cluster and of waiting for all to have
: The number of bytes sent to each host in each message
exchange. The reply from each host has the same number of
: This causes each message batch to contain several operations.
In practice this is a multiplier on the number of bytes.