[SERVER-1746] Perf: count() inconsistent response times Created: 07/Sep/10 Updated: 03/Sep/11 Resolved: 03/Sep/11 |
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| Status: | Closed |
| Project: | Core Server |
| Component/s: | Performance |
| Affects Version/s: | 1.6.2 |
| Fix Version/s: | None |
| Type: | Bug | Priority: | Major - P3 |
| Reporter: | Alvin Richards (Inactive) | Assignee: | Unassigned |
| Resolution: | Incomplete | Votes: | 2 |
| Labels: | None | ||
| Remaining Estimate: | Not Specified | ||
| Time Spent: | Not Specified | ||
| Original Estimate: | Not Specified | ||
| Environment: |
EC2 |
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| Attachments: |
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| Operating System: | ALL |
| Participants: |
| Description |
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Problem: Mon Sep 6 15:45:33 Mon Sep 6 19:06:20 The second clocks in a 9 seconds (when there is no load on the system), the first at 9 minutes with a system under moderate load. I'm guessing that the count is a computed value rather than stored. If we use a stored value in future, then insert and delete operations will be gated by the latch time for the counter, so its a trade off. Environment:
Reproduce: Business Case: |