lukecwik opened a new issue, #23193: URL: https://github.com/apache/beam/issues/23193
### What would you like to happen? The current TextSource implementation is spending a lot of time during `byte[]` copying:  Hadoop `LineReader.java` implementation is signficantly faster (~2x) when handling typical files due to an implementation that reduces how many bytes are copied. A simple benchmark reading 10 million lines (60-120 characters long) shows that it takes about ~2.05 seconds to process such a file while the Apache Beam TextSource takes ~4.03 seconds. ### Issue Priority Priority: 2 ### Issue Component Component: io-java-text -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
