The document discusses performance optimizations for Apache Camel. It provides the results of benchmarks testing various components and patterns in Camel including content based routing, splitting messages, marshaling/unmarshaling, working with files, databases, threads, templates, web services, and messaging. The benchmarks measure processing time and memory usage for tasks like routing messages, splitting files, inserting records, and processing messages.

1. Performance Optimizations
for Apache Camel
Christian Müller

2. Environment
● Mac Book Pro 2,7 GHz Intel Core i7
● 16 GB Memory (1600 MHz DDR3)
● 500 GB Flash Storage
● OSX 10.11.3

3. Content based routing EIP
Camel 2.16.2 + JDK 1.7.0_75
Duration in ms to route 10.000 10 KByte messages
0
500
1000
1500
2000
2500
3000
3500
4000
3440 2310 3580 1230 240 220
XPath (JDK)
XPath (Saxon)
XQuery
VTDXML*
Simple
Header
* GPL
https://github.com/muellerc/apachecon-na-2013/tree/master/cbr-eip

4. Content based routing EIP
Camel 2.16.2 + JDK 1.8.0_71
Duration in ms to route 10.000 10 KByte messages
0
500
1000
1500
2000
2500
3000
2190 1870 2730 1170 130 110 120 110
XPath Body (JDK)
XPath Body (Saxon)
XQuery Body
VTDXML* Body
Simple Body
Java Predicate Body
DSL Header
Java Predicate Header
* GPL
https://github.com/muellerc/apachecon-na-2013/tree/master/cbr-eip

5. Split EIP
Camel 2.16.2 + JDK 1.7.0_75
Duration in ms to split a 100 MByte message
Memory footprint in MByte to split a 100 MByte file
0
2000
4000
6000
8000
10000
12000
10640 11262980 4803550 2006770 8
XPath (JDK)
XPath (Saxon)
VTDXML*
XML Tokenizer
* GPL
https://github.com/muellerc/apachecon-na-2013/tree/master/split-eip

6. Split EIP
Camel 2.16.2 + JDK 1.8.0_71
Duration in ms to split a 100 MByte message
Memory footprint in MByte to split a 100 MByte file
0
1000
2000
3000
4000
5000
6000
7000
8000
9000
10000
9930 11263030 4801720 2006100 8
XPath (JDK)
XPath (Saxon)
VTDXML*
XML Tokenizer
* GPL
https://github.com/muellerc/apachecon-na-2013/tree/master/split-eip

7. Marshaling / Unmarshaling
Camel 2.16.2 + JDK 1.7.0_75
Duration in ms to marshal and unmarshal 10.000 messages
0
500
1000
1500
2000
2500
3000
1410 750 840 700 2830 470 460 530
XStream (XML)
XMLBeans (XML)
JAXB (XML)
JIBX (XML)
XStream (Json)
Gson (Json)
Jackson (Json)
Java Serialization
https://github.com/muellerc/apachecon-na-2013/tree/master/marshaling-unmarshaling

8. Marshaling / Unmarshaling
Camel 2.16.2 + JDK 1.8.0_71
Duration in ms to marshal and unmarshal 10.000 messages
0
500
1000
1500
2000
2500
3000
1180 620 550 0 2830 320 210 490 460
XStream (XML)
XMLBeans (XML)
JAXB (XML)
JIBX* (XML)
XStream (Json)
Gson (Json)
Jackson (Json)
Java Serialization
Boon (Json)
https://github.com/muellerc/apachecon-na-2013/tree/master/marshaling-unmarshaling
* doesn't work with Java 8 at present

9. Working with files
Camel 2.16.2 + JDK 1.7.0_75
Duration in ms to write 50.000 lines a 140 Bytes into a file
0
2000
4000
6000
8000
10000
12000
11930 5070 1480 2330 1870
Line by Line
Aggregator (Blocks and String)
Aggregator (StringBuilder)
Streaming
Aggregator (Blocks and StringBuilder)
https://github.com/muellerc/apachecon-na-2013/tree/master/file-component

10. Working with files
Camel 2.16.2 + JDK 1.8.0_71
Duration in ms to write 50.000 lines a 140 Bytes into a file
0
2000
4000
6000
8000
10000
12000
10670 4310 890 1670 1130 730
Line by Line
Aggregator (Blocks and String)
Aggregator (StringBuilder)
Streaming
Aggregator (Blocks and StringBuilder)
Optimized Splitter
https://github.com/muellerc/apachecon-na-2013/tree/master/file-component

11. Working with databases
Camel 2.16.2 + JDK 1.7.0_75
Duration in ms to insert 10.000 records
0
200
400
600
800
1000
1200
1400
1600
1800
1650 800 550 570
Record by Record
Batched (by 10 records)
Batched (by 100 records)
Batched (by 1000 records)
https://github.com/muellerc/apachecon-na-2013/tree/master/sql-component

12. Working with databases
Camel 2.16.2 + JDK 1.8.0_71
Duration in ms to insert 10.000 records
0
200
400
600
800
1000
1200
1400
1600
1470 510 370 310
Record by Record
Batched (by 10 records)
Batched (by 100 records)
Batched (by 1000 records)
https://github.com/muellerc/apachecon-na-2013/tree/master/sql-component

13. Working with threads()
Camel 2.16.2 + JDK 1.7.0_75
Duration in ms to process 1000 messages Duration in ms to process 10 files
0
2000
4000
6000
8000
10000
12000
14000
12370 100701230 1040
Single threaded processing
Multi threaded processing (10)
https://github.com/muellerc/apachecon-na-2013/tree/master/threads

14. Working with threads()
Camel 2.16.2 + JDK 1.8.0_71
Duration in ms to process 1000 messages Duration in ms to process 10 files
0
2000
4000
6000
8000
10000
12000
14000
12250 100601190 1040
Single threaded processing
Multi threaded processing (10)
https://github.com/muellerc/apachecon-na-2013/tree/master/threads

15. Working with templates
Camel 2.16.2 + JDK 1.7.0_75
Duration in ms to process 10000 messages
0
200
400
600
800
1000
1200
1400
1230 480 270
String Template
Velocity
FreeMarker
https://github.com/muellerc/apachecon-na-2013/tree/master/template

16. Working with templates
Camel 2.16.2 + JDK 1.8.0_71
Duration in ms to process 10000 messages
0
200
400
600
800
1000
1200
1400
1210 390 160 170 150
String Template
Velocity
FreeMarker
Mustache
Chunk
https://github.com/muellerc/apachecon-na-2013/tree/master/template

17. Using web services
Camel 2.16.2 + JDK 1.7.0_75
Duration in ms to send 10000 messages
0
5000
10000
15000
20000
25000
30000
35000
33110 32580 28310
POJO* (without Woodstox)
POJO
PAYLOAD
MESSAGE
https://github.com/muellerc/apachecon-na-2013/tree/master/cxf-component
* doesn't work without Woodstox anymore

18. Using web services
Camel 2.16.2 + JDK 1.8.0_71
Duration in ms to send 10000 messages
0
5000
10000
15000
20000
25000
30000
35000
32320 31860 27700
POJO* (without Woodstox)
POJO
PAYLOAD
MESSAGE
https://github.com/muellerc/apachecon-na-2013/tree/master/cxf-component
* doesn't work without Woodstox anymore

19. Messaging
Camel 2.16.2 + JDK 1.7.0_75
Duration in ms to process 100 messages
0
1000
2000
3000
4000
5000
6000
5770 5720 1100
InOut perm. queue
InOut temp. queue
InOnly
https://github.com/muellerc/apachecon-na-2013/tree/master/jms-component

20. Messaging
Camel 2.16.2 + JDK 1.8.0_71
Duration in ms to process 100 messages
0
1000
2000
3000
4000
5000
6000
5620 5600 1090
InOut perm. queue
InOut temp. queue
InOnly
https://github.com/muellerc/apachecon-na-2013/tree/master/jms-component

21. Messaging
Camel 2.16.2 + JDK 1.7.0_75
Duration in ms to read and write 10000 messages
0
200
400
600
800
1000
1200
1400
1600
1800
1690 1280 1180
SJMS (Trans.)
SJMS (Trans. Batch Consumer)
SJMS (Trans. Batch)*
https://github.com/muellerc/apachecon-na-2013/tree/master/sjms-component
* could be improved

22. Messaging
Camel 2.16.2 + JDK 1.8.0_71
Duration in ms to read and write 10000 messages
0
200
400
600
800
1000
1200
1400
1600
1800
2000
1860 1650 1340
SJMS (Trans.)
SJMS (Trans. Batch Consumer)
SJMS (Trans. Batch)*
https://github.com/muellerc/apachecon-na-2013/tree/master/sjms-component
* could be improved