[CAMEL-15715] Simple performance regression

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Duplicate
• Affects Version/s: 3.4.4
• Fix Version/s: 3.6.0
• Component/s: came-core
• Estimated Complexity: Unknown
• Assignee: Claus Ibsen
• Reporter: Antoine DESSAIGNE
• Created: 20/Oct/20 18:06
• Updated: 20/Oct/20 19:51
• Resolved: 20/Oct/20 19:42

Description

Hello everyone,

We identified a performance drop in Simple expressions in 3.4.4 compared to 2.25.1

Given the following route

<?xml version="1.0" encoding="UTF-8"?>
<routes xmlns="http://camel.apache.org/schema/spring" xmlns:u="http://www.systar.com/aluminium/camel-util">
    <route>
        <from uri="timer:foo?delay=-1&repeatCount=1000000"/>
        <!-- fake data to have something to work with -->
        <setBody>
            <groovy>['a', 'b', 'c', 'd']</groovy>
        </setBody>
        <setHeader headerName="raw">
            <simple>${body[2]}</simple>
        </setHeader>
        <setHeader headerName="string">
            <simple resultType="String">${body[2]}</simple>
        </setHeader>
        <setHeader headerName="constant">
            <constant>constant</constant>
        </setHeader>
        <to uri="log:throughput?groupInterval=1000"/>
    </route>
</routes>

In Camel 3.4.4 I have an average of 10,324 messages per second whereas I have an average of 69,662 messages per second in Camel 2.25.1

When extracting JMX TotalProcessingTime attribute on the setHeader processors here what I have for the 1 million messages

SetHeader	Camel 2.25.1	Camel 3.4.4
raw	4506	45275
string	3935	44103
constant	377	470

We're using an OSGi environment but I don't think it has an impact here.

Can you have a look? What can I do to help?

Thank you

Issue Links

• duplicates: CAMEL-15587 simple/bean language - performance regression