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See Reading Large Data Instrumentation Comparisons
Test Results (After xpath query performance improvements)
| No of nodes | threads count | Time to read single txn | Time to read all | Comments |
| 500 | 1 | ~0.5 sec | 4 min 10 sec | Drastic improvement in performance than before. It took 2 hours to retrieve the data before the fix. |
| 500 | 2 | ~0.5 sec | 4 min 12 sec | No improvements in performance with increased threads count |