[SERVER-12740] journaling : use less RAM in PREPLOGBUFFER+ phases Created: 14/Feb/14  Updated: 06/Dec/22  Resolved: 14/Sep/18

Status: Closed
Project: Core Server
Component/s: MMAPv1, Storage
Affects Version/s: 2.5.5
Fix Version/s: None

Type: Improvement Priority: Major - P3
Reporter: Dwight Merriman Assignee: Backlog - Storage Execution Team
Resolution: Won't Fix Votes: 0
Labels: None
Remaining Estimate: Not Specified
Time Spent: Not Specified
Original Estimate: Not Specified

Assigned Teams:
Storage Execution
Participants:

 Description   

If a group commit is unusually large, it would be helpful if the section we are writing to the journal doesn't have to be in RAM all at once. In theory this may be pretty easy to do.

(The private view memory load would still be large, but this change might give us a order of 2x improvement in memory usage for these scenarios.)


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