Coherence Response Times Increased after Upgrading to 12c
Last updated on AUGUST 04, 2017
Applies to:Oracle Coherence - Version 188.8.131.52.0 and later
Information in this document applies to any platform.
After upgrading from Coherence 3.6/WLS 10.3.x to WLS/Coherence 184.108.40.206.0, response time of application is slow during load (normal time for a get call is 11 ms but during the load it is taking around 200 to 800 ms) . JDK is also upgraded from 1.6 to 1.8.0_66
Thread dumps collected shows below stack
2. Checked Storagemanager query stats in VisualVM and I see some non-optimized queries taking 200 ms to 800 ms.
3. In the JVisualVM Threads sections, I see worker thread count (dynamic pool) going up every sec and coming down.
4. Using Externalizable serialization.
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