Distance Based Root Cause Analysis and Change Impact Analysis of Performance Regressions

Table 1

Top 20 hot functions ranked by impact score in the case study.

Functions	Impact score	Max time (ms)	Avg. time (ms)	Min time (ms)
com..dataaccess.doa.AFCMCHGetTrlOOBWizardDataSetsDBDAO - executeSQL	0.944	4492.79	2860.96	1229.13
com..msgHandler.idfHandler.AFCIDFSecurityMasterHandler - Do proccess	0.496	36.79	10.56	1.18
com..msgHandler.idfHandler.AFCIDFLotLevelHoldingsHandler - Do proccess	0.488	11.29	3.84	1.24
com..dataaccess.doa.AFCMCHAcctLedgerBalanceWSDAO - select	0.41	3136	1879.54	499.85
com..msgHandler.idfHandler.AFCIDFPositionHandler - Do proccess	0.384	8.87	4.72	1
com..msgHandler.AFCPingIdfMsgHandler - Do proccess	0.344	5.32	2.31	0.75
com..msgHandler.idfHandler.AFCIDFIndexHandler - init IDF Param	0.294	0.74	0.60	0.31
com..dataaccess.doa.AFCMCHAcctLedgerCapstockSummaryWSDAO - select	0.279	3382.25	1900.44	604.07
com..msgHandler.idfHandler.AFCIDFSecurityMasterHandler - IDF Handler Process Total time	0.248	53.38	15.57	2.436
com..dataaccess.util.AFCDBConnectionFactory - GenConnectionPool	0.214	6363.50	234.47	5.92
com..msgHandler.idfHandler.AFCIDFIndexHandler - Close Listener	0.208	0.73	0.423	0.26
com..dataaccess.doa.AFCMCHAcctFundExtRatioWSDAO - select	0.174	4139.08	2183.72	716.816
com..msgHandler.AFCPingIdfMsgHandler - init IDF Param	0.17	0.96	0.68	0.52
com..msgHandler.idfHandler.AFCIDFIndexHandler - IDF Handler Process Total time	0.169	3.23	2.03	0.98
com..dataaccess.doa.AFCMCHAcctKeyFinStatsDBDAO - executeSQL	0.161	2719.07	220.54	8.49
Com.dataaccess.doa.AFCMCHAcctAllFundHierarchyTreeDBDAO - executeSQL	0.123	2569.33	425.44	11.87
Com..msgHandler.idfHandler.AFCIDFLotLevelHoldingsHandler - init IDF Param	0.117	0.88	0.63	0.24
com..msgHandler.idfHandler.AFCIDFPositionHandler - init IDF Param	0.112	0.72	0.69	0.66
com..msgHandler.AFCPingIdfMsgHandler - IDF Handler Process Total time	0.102	8.48	3.99	1.79
com..msgHandler.idfHandler.AFCIDFLotLevelHoldingsHandler - IDF Handler Process Total time	0.098	13.11	5.44	1.90