[SERVER-16067] Contention on lockmgr buckets in MMAPv1 Created: 11/Nov/14 Updated: 04/Dec/14 Resolved: 03/Dec/14 |
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| Status: | Closed |
| Project: | Core Server |
| Component/s: | Concurrency |
| Affects Version/s: | 2.7.8 |
| Fix Version/s: | 2.8.0-rc2 |
| Type: | Bug | Priority: | Major - P3 |
| Reporter: | Davide Italiano | Assignee: | Geert Bosch |
| Resolution: | Done | Votes: | 0 |
| Labels: | 28qa | ||
| Remaining Estimate: | Not Specified | ||
| Time Spent: | Not Specified | ||
| Original Estimate: | Not Specified | ||
| Attachments: |
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| Backwards Compatibility: | Fully Compatible | ||||||||||||
| Operating System: | ALL | ||||||||||||
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| Description |
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Reducing contention on GroupCommit mutex (
and:
kaloian.manassiev proposes to partition Global/Flush/DB locks to reduce this contention. |
| Comments |
| Comment by Githook User [ 02/Dec/14 ] |
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Author: {u'username': u'GeertBosch', u'name': u'Geert Bosch', u'email': u'geert@mongodb.com'}Message: |
| Comment by Githook User [ 24/Nov/14 ] |
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Author: {u'username': u'kaloianm', u'name': u'Kaloian Manassiev', u'email': u'kaloian.manassiev@mongodb.com'}Message: Instead of using enumerations, use an increment/decrement calls in order Inline all LockHead methods. |
| Comment by Githook User [ 24/Nov/14 ] |
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Author: {u'username': u'kaloianm', u'name': u'Kaloian Manassiev', u'email': u'kaloian.manassiev@mongodb.com'}Message: |
| Comment by Githook User [ 14/Nov/14 ] |
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Author: {u'username': u'kaloianm', u'name': u'Kaloian Manassiev', u'email': u'kaloian.manassiev@mongodb.com'}Message: This makes it clear where we do acquisitions and conversions and we can do |