816f3bfb36
The number of properties per node roughly corresponds to the number of members of the class the node is representing and should be fairly low. Use std::vector::reserve to prevent reallocation on insert for most node types, there are exceptions like Region(~40 properties). This seems worth it as part(maybe 1/10th of the total time) of saving a Session is a combination of what occurs in "Create" and "Write" in this test. Perf results before changes: XMLTest::testPerfMediumXMLDocumentTiming Create : Count: 10 Min: 30610 Max: 42656 Total: 376672 Avg: 37667 (37 msecs) Write : Count: 10 Min: 42804 Max: 54277 Total: 460455 Avg: 46045 (46 msecs) Read : Count: 10 Min: 70364 Max: 85484 Total: 750909 Avg: 75090 (75 msecs) XMLTest::testPerfLargeXMLDocumentTiming Create : Count: 10 Min: 164360 Max: 356995 Total: 3064482 Avg: 306448 (306 msecs) Write : Count: 10 Min: 308655 Max: 372953 Total: 3226707 Avg: 322670 (322 msecs) Read : Count: 10 Min: 517243 Max: 541839 Total: 5289950 Avg: 528995 (528 msecs) Perf results after changes: XMLTest::testPerfMediumXMLDocumentTiming Create : Count: 10 Min: 30375 Max: 48253 Total: 431727 Avg: 43172 (43 msecs) Write : Count: 10 Min: 42553 Max: 49163 Total: 453353 Avg: 45335 (45 msecs) Read : Count: 10 Min: 70307 Max: 75987 Total: 734923 Avg: 73492 (73 msecs) XMLTest::testPerfLargeXMLDocumentTiming Create : Count: 10 Min: 154486 Max: 307856 Total: 2678989 Avg: 267898 (267 msecs) Write : Count: 10 Min: 304273 Max: 343274 Total: 3169158 Avg: 316915 (316 msecs) Read : Count: 10 Min: 496920 Max: 541394 Total: 5260410 Avg: 526041 (526 msecs)
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