Details
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Bug
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Resolution: Unresolved
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Major - P3
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None
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3.0.0-rc7
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None
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Storage Engines
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ALL
Description
For a constant load, as wiredTigerConcurrentWriteTransactions is varied a minimum in performance is seen at a value of 16 concurrent write transactions.
Tests below on 6-CPU VMware machine.
Insert-only workload, 64 clients:

Mixed (but write-heavy) workload of inserts, updates, queries, 512 clients:

Profile and stats showing effect of changing from (effectively) unlimited to limit of 16 during the middle of a run:

