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References
Jira Legacy server System Jira serverId 4733707d-2057-3a0f-ae5e-4fd8aff50176 key CPS-2478
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Parameter | Value | Notes |
---|---|---|
Cm Handles | 500 | |
Module Set Tags | 2 | 250 CM Handles Each |
Worker Threads (parallelism) | 2 | |
Environment | Windows 11. 13th Gen Intel(R) Core(TM) i9-13900H 2.60 GHz |
Registration: Measurements Before & After PoC
Method | Before (avg. 4 runs) | After (avg. 6 runs) | Notes (improvements) | ||||
---|---|---|---|---|---|---|---|
# Calls | Time Spent (ms) | % | # Calls | Time Spent (ms) | % | ||
query module references | 500 | 1,017 | 7% | 2 | 5 | 0% | Used ‘privateModuleSetCache’ map to locally store required data on each thread. Data discarded when thread finishes but this eliminates vast majority of DB calls. |
get modules from DMI | 100-200 | 1,326 | 9% | 2 | 13 | 0% | Use a Hazelcast distributed Set: ‘moduleSetTagsBeingProcessed’ to prevent multiple threads/instances attempting to process the same new tag. |
store schema set | 500 | 10,449 | 73% | 500 | 5,156 | 86% | 2 x faster. Probably due to less contention with read queries |
update states | 5+ | 1,429 | 10% | 5+ | 833 | 14% | 1.7 x faster |
Total | 14,221 | 6,006 | > 2 x faster! |
Registration: Extrapolated Results for 20,000 Nodes and DMI Delay
below figures are calculated by multiplying the total time and adding fix delays for DMI requests
Methods | Before | After | Notes | ||
---|---|---|---|---|---|
Time Spent (ms) | % | Time Spent (ms) | % | ||
query module references | 40,670 | 7% | 5 | 0% | |
get modules from DMI | 54,050 | 9% | 2,667 | 1% | add 200ms delay for first 10 batch of 100 |
store schema set | 417,960 | 73% | 206,220 | 85% | |
update states | 57,170 | 10% | 33,313 | 14% | |
Total | 569,850 | ~9m30s | 242,205 | ~4m3s | Need to add 2 minutes for initial delay: ~6m ~ 55 CM Handles/sec |
Registration: K6 Historical and current results, detailed analysis (excell)
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De-Registration: Test Measurements with and without Orphanage removal
Before | After (without orphan removal) | Notes (improvements) | ||
---|---|---|---|---|
Milliseconds | CM Handles/Sec | Milliseconds | CM Handles/Sec | |
144,720 | 138 | 54,225 | 369 | |
151,189 | 132 | 57,061 | 351 | |
141,082 | 142 | 53,981 | 371 | |
Average | 137 | Average | 363 | > 2.6 x faster! |