#### 28.4.3.5 The host\_summary\_by\_statement\_latency and
x$host\_summary\_by\_statement\_latency Views

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 These views summarize overall statement statistics, grouped by host. By default, rows are sorted by descending total latency.

 The [`host_summary_by_statement_latency`](sys-host-summary-by-statement-latency.html) and [`x$host_summary_by_statement_latency`](sys-host-summary-by-statement-latency.html) views have these columns:

* `host`

   The host from which the client connected. Rows for which the `HOST` column in the underlying Performance Schema table is `NULL` are assumed to be for background threads and are reported with a host name of `background`.

* `total`

   The total number of statements for the host.

* `total_latency`

   The total wait time of timed statements for the host.

* `max_latency`

   The maximum single wait time of timed statements for the host.

* `lock_latency`

   The total time waiting for locks by timed statements for the host.

* `cpu_latency`

   The time spent on CPU for the current thread.

* `rows_sent`

   The total number of rows returned by statements for the host.

* `rows_examined`

   The total number of rows read from storage engines by statements for the host.

* `rows_affected`

   The total number of rows affected by statements for the host.

* `full_scans`

   The total number of full table scans by statements for the host.

