These views summarize statement activity, file I/O, and connections, grouped by host.
The host from which the client connected. Rows for which the
HOSTcolumn in the underlying Performance Schema table is
NULLare assumed to be for background threads and are reported with a host name of
The total number of statements for the host.
The total wait time of timed statements for the host.
The average wait time per timed statement for the host.
The total number of table scans for the host.
The total number of file I/O events for the host.
The total wait time of timed file I/O events for the host.
The current number of connections for the host.
The total number of connections for the host.
The number of distinct users for the host.
The current amount of allocated memory for the host.
The total amount of allocated memory for the host.