[CAMEL-6264] Camel 2.10 performance regression with added statistics in BaseTypeConverterRegistry

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.10.3, 2.11.0
• Fix Version/s: 2.10.5, 2.11.0
• Component/s: camel-core
• Labels: performance
• Estimated Complexity: Unknown
• Assignee: Claus Ibsen
• Reporter: Fabien Chaillou
• Created: 11/Apr/13 17:23
• Updated: 02/May/13 02:30
• Resolved: 17/Apr/13 19:44

Description

We updated one of our applications from camel 2.7.3 to camel 2.10.3.
We have a camel route that takes its input from a servlet and we saw a 10% performance drop after the update.

With more tests using yourkit, it appears that we are spending a lot more time in BaseTypeConverterRegistry#convertTo method than we used to (from 10ms to 3200ms in a test case).

The only difference between the two version is the added statistics and the AtomicLong that must cause contention on our route that uses multiple threads behind a seda.

To improve the issue on our side, we worked-around to avoid having a type converter in our hotspots (Which was mainly the DefaultHttpBinding#writeResponse from camel-http), but i think a solution should be find (maybe make these statistics optionnal).

Regards,
Fabien

Issue Links

• is related to: CAMEL-6282 TypeConverterRegistry - Allow to enable or disable utilization statistics