[SERVER-16482] Decreased throughput due to changes in scheduling algorithm? (mms-prod-pings1) Created: 09/Dec/14 Updated: 25/Jan/15 Resolved: 05/Jan/15 |
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| Status: | Closed |
| Project: | Core Server |
| Component/s: | Performance |
| Affects Version/s: | 2.8.0-rc2 |
| Fix Version/s: | None |
| Type: | Bug | Priority: | Major - P3 |
| Reporter: | Cailin Nelson | Assignee: | Kaloian Manassiev |
| Resolution: | Duplicate | Votes: | 0 |
| Labels: | None | ||
| Remaining Estimate: | Not Specified | ||
| Time Spent: | Not Specified | ||
| Original Estimate: | Not Specified | ||
| Attachments: |
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| Backwards Compatibility: | Fully Compatible | ||||||||||||
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| Description |
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Please see attached MMS graph showing a time range that shows a particular workload on 2.6.3 and then 2.8.0rc2 (mmapv1). Note that the query opcounters (bright green, highest line) and the update opcounters (lighter green, lower line) both decreased when we upgrade to 2.8.0rc2. One significant workload on this replica set has the following hourly pattern:
You can see the change a bit more clearly in this 5 minute average of just update opcounters:
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| Comments |
| Comment by Cailin Nelson [ 25/Jan/15 ] |
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We are pleased to confirm that, as of 3.0.0-rc6, we now have increased throughput on the newest version of MongoDB! |
| Comment by Kaloian Manassiev [ 05/Jan/15 ] |
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Resolving as potential duplicate of |
| Comment by Kaloian Manassiev [ 18/Dec/14 ] |
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This might be remotely related to |
| Comment by Githook User [ 10/Dec/14 ] |
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Author: {u'username': u'kaloianm', u'name': u'Kaloian Manassiev', u'email': u'kaloian.manassiev@mongodb.com'}Message: This is a small optimization, which would help with the LM cost in the |