Naslov
A Dynamic QoS Control Approach Based on Query Response Time Prediction

Autori
Miličević, Mario ; Baranović, Mirta ; Batoš, Vedran

Izvornik
WSEAS transactions on computers (1109-2750) 4 (2005), 8; 882-889

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
quality of service; OLTP; data warehouse; data mining

Sažetak
The performance of On-Line Transaction Processing (OLTP) systems (or Data Warehouses (DW)) have a major effect on their acceptability to users. User oriented Quality of Service (QoS) of OLTP/DW system is determined with a response time, availability, consistency and currency. In this paper the relationship between the system load/throughput and the query response time has been analyzed in the real OLTP system environment. We consider the influence of the system load and the system throughput on the response time, as well as a possibility of the accurate response time prediction - whereby that mechanism may be a foundation for (automatized) decision-making for a query (or DB procedure) scheduling. The possible application of proposed method can be the estimation of the optimal moment for the data transfer from OLTP system into DW or the appropriate moment for the complex query execution.

Izvorni jezik
Engleski

Znanstvena područja
Računarstvo

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