mysqld DTrace Probe Reference

MySQL supports the following static probes, organized into groups of functionality.

Table 5.18. MariaDB DTrace Probes

Group	Probes	Introduced
Connection	connection-start, connection-done	5.4.0
Command	command-start, command-done	5.4.0
Query	query-start, query-done	5.4.0
Query Parsing	query-parse-start, query-parse-done	5.4.0
Query Cache	query-cache-hit, query-cache-miss	5.4.0
Query Execution	query-exec-start, query-exec-done	5.4.0
Row Level	insert-row-start, insert-row-done	5.4.0
	update-row-start, update-row-done	5.4.0
	delete-row-start, delete-row-done	5.4.0
Row Reads	read-row-start, read-row-done	5.4.0
Index Reads	index-read-row-start, index-read-row-done	5.4.0
Lock	handler-rdlock-start, handler-rdlock-done	5.4.0
	handler-wrlock-start, handler-wrlock-done	5.4.0
	handler-unlock-start, handler-unlock-done	5.4.0
Filesort	filesort-start, filesort-done	5.4.0
Statement	select-start, select-done	5.4.0
	insert-start, insert-done	5.4.0
	insert-select-start, insert-select-done	5.4.0
	update-start, update-done	5.4.0
	multi-update-start, multi-update-done	5.4.0
	delete-start, delete-done	5.4.0
	multi-delete-start, multi-delete-done	5.4.0
Network	net-read-start, net-read-done, net-write-start, net-write-done	5.4.0
Keycache	keycache-read-start, keycache-read-block, keycache-read-done, keycache-read-hit, keycache-read-miss, keycache-write-start, keycache-write-block, keycache-write-done	5.4.0

Note

When extracting the argument data from the probes, each argument is available as argN, starting with arg0. To identify each argument within the definitions they are provided with a descriptive name, but you must access the information using the corresponding argN parameter.

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