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Marks the beginning of a transaction.
function lr.start_transaction( transaction_name )
Function lr.start_transaction( transaction_name )
|Example: Transaction Duration, set_transaction, and waste time||Transaction Functions|
|transaction_name||The name of the transaction.|
The lr.start_transaction function marks the beginning of a transaction. To indicate a transaction to be analyzed, use the lr.start_transaction and lr.end_transaction functions. These functions are inserted immediately before and after the transaction.
Transactions can be nested, but each lr.start_transaction statement must be associated with an lr.end_transaction statement or it will be interpreted as an illegal command.
Note: Do not use the period character (.) in a transaction or sub-transaction name. The period character delimits transactions and sub-transactions. In analysis, a transaction name with a period will be interpreted as two transactions.
On success, returns 0. Returns -1 if the transaction name is illegal.
Standard parameterization is not available for this function.