As fast as C?

Talk given at the London Node.js User Group.

Transcript

1. As fast as C? Writing high performance stream parsers in JS. Felix Geisendörfer June 27, 2012 - London Node.js User Group
2. Thanks Forward!
3. Felix Geisendörfer
4. (@)felixge(.de)
5. core contributor
6. transloadit.com
7. ~50 npm modules
8. node-formidable
9. node-mysql
10. Parser Geeks?
11. As fast as C?
12. Dubious Benchmarks Ahead!
13. Selecting 100k blog post rows
16. 0 15000 30000 45000 60000 node-mysql-0.9.6 node-mysql-libmysqlclient-1.3.3 node-mysql-2.0.0-alpha3 53966 36429 20968 Rows per Second node-mysql-0.9.6 node-mysql-libmysqlclient-1.3.3 node-mysql-2.0.0-alpha3 https://github.com/felixge/mysql-client-benchmarks
17. 0 17500 35000 52500 70000 node-mysql-0.9.6 node-mysql-libmysqlclient-1.3.3 node-mysql-2.0.0-alpha3 php-mysqlnd-5.13 68097 53966 36429 20968 Rows per Second node-mysql-0.9.6 node-mysql-libmysqlclient-1.3.3 node-mysql-2.0.0-alpha3 php-mysqlnd-5.13 https://github.com/felixge/mysql-client-benchmarks
18. Pure node.js parsers can compete with C Addons
19. Lessons Learned
20. Practice
21. Benchmark First
22. Buffering can be good!
23. Code!
24. it
25. Sponsors
26. They’re hiring! @dan_jenkins
27. Also hiring!
28. Questions? ” http://felixge.de/ felix@debuggable.com @felixge
29. Algorithms
30. ------------------------------4a62195680a6 Content-Disposition: form-data; name="upload1"; filename="file1.txt" Content-Type: text/plain file 1 data ... ------------------------------4a62195680a6 Content-Disposition: form-data; name="upload2"; filename="file2.txt" Content-Type: text/plain file 2 data ... ------------------------------4a62195680a6-- Example: Multipart (File Uploads)
31. Lots and lots of file data ... ------------------------------4a62195680a6 Naive Boundary Search: One byte at a time