Abstract: Methods, systems and computer program products for monitoring delivered packages are provided. Aspects include receiving, by a co-processor, a data stream and performing processing on the data stream. Aspects also include writing, by the co-processor, a data record into the output buffer. Based on a determination that the data record should replace a most recently stored data record in a cache, aspects include providing, by the co-processor to the cache controller, an instruction for the cache controller to write the data record to a location in the cache obtained from a most recently used address register. Based on a determination that the data record should not replace the most recently stored data record in the cache, aspects include writing, by the cache controller, the data record to an available location in the cache.

Abstract: Examples of techniques for tournament tree rollback for payload write exception are described herein. An aspect includes receiving a new record for a tournament sort. Another aspect includes determining a winner node of the tournament sort based on a tournament tree and the new record. Another aspect includes, based on determining the winner node of the tournament sort, writing out a payload of the winner node. Another aspect includes, in parallel with writing out the payload of the winner node, updating the tournament tree.

Abstract: Methods, systems and computer program products for monitoring delivered packages are provided. Aspects include receiving, by a co-processor, a data stream and performing processing on the data stream. Aspects also include writing, by the co-processor, a data record into the output buffer. Based on a determination that the data record should replace a most recently stored data record in a cache, aspects include providing, by the co-processor to the cache controller, an instruction for the cache controller to write the data record to a location in the cache obtained from a most recently used address register. Based on a determination that the data record should not replace the most recently stored data record in the cache, aspects include writing, by the cache controller, the data record to an available location in the cache.

Abstract: Examples of techniques for tournament tree rollback for payload write exception are described herein. An aspect includes receiving a new record for a tournament sort. Another aspect includes determining a winner node of the tournament sort based on a tournament tree and the new record. Another aspect includes, based on determining the winner node of the tournament sort, writing out a payload of the winner node. Another aspect includes, in parallel with writing out the payload of the winner node, updating the tournament tree.