Database indexing in performance measurement systems

A computer implemented method comprising:

• evaluating, by a processor, data indicative of the processing of each of a plurality of messages by an application which causes each of the plurality of message to traverse at least one of a plurality of checkpoints of the application to determine that a latency between at least two of the plurality of checkpoints satisfies a delay condition, and based thereon, modify the data based thereon;
• upon receiving, by the processor, a query of a first or second type, searching, by the processor based on the type of query, only the modified data or all of the data.

A non-transitory computer-readable medium storing instructions which cause a processor to:

• evaluate a data store coupled with the processor, the data store storing data indicative of a traversal of each of a plurality of messages via each of a plurality of checkpoints of an application operative to process the plurality of messages upon the receipt of each thereof, to determine that a traversal latency of one or more of the plurality of messages between at least two checkpoints of the plurality of checkpoints satisfies a delay condition, and based thereon, modify the data indicative of the traversal of at least one of the at least two checkpoints by the one or more messages to indicate a delay;
• and
• upon receipt, by the processor, of a query of a first or second type, search, by the processor based on the type of query, only data in the data store which indicates a delay when the query is of the first type or all of the data in the data store when the query is of the second type.

A computer system comprising:

• means for evaluating a data store, which stores data indicative of a traversal of each of a plurality of messages via each of a plurality of checkpoints of an application operative to process the plurality of messages upon the receipt of each thereof, to determine that a traversal latency of one or more of the plurality of messages between at least two checkpoints of the plurality of checkpoints satisfies a delay condition, and based thereon, modify the data indicative of the traversal of at least one of the at least two checkpoints by the one or more messages to indicate a delay;
• and
• upon receiving, by the processor, a query of a first or second type, means for searching, based on the type of query, only data in the data store which indicates a delay when the query is of the first type or all of the data in the data store when the query is of the second type.