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ASF GitHub Bot commented on WICKET-6952: ---------------------------------------- theigl removed a comment on pull request #497: URL: https://github.com/apache/wicket/pull/497#issuecomment-1027288730 OK my previous benchmark was flawed because I created a new buffer for every run. The new `isEmpty` method for `AppendingStringBuffer` is actually 40-50x faster for medium-sized buffers. ``` Benchmark Mode Cnt Score Error Units StringsBenchmark.bufferFastIsEmpty thrpt 15 1918461027.579 ± 4949234.208 ops/s StringsBenchmark.bufferIsEmpty thrpt 15 42567269.762 ± 40091.373 ops/s StringsBenchmark.fastIsEmpty thrpt 15 1910306184.208 ± 4067311.978 ops/s StringsBenchmark.isEmpty thrpt 15 1804225517.032 ± 1951669.787 ops/s ``` -- 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: commits-unsubscr...@wicket.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org > Performance improvements for Strings.isEmpty > -------------------------------------------- > > Key: WICKET-6952 > URL: https://issues.apache.org/jira/browse/WICKET-6952 > Project: Wicket > Issue Type: Improvement > Components: wicket-core > Affects Versions: 9.7.0 > Reporter: Thomas Heigl > Assignee: Thomas Heigl > Priority: Minor > > {{Strings.isEmpty}} is one of the most called methods in our application and > consistently shows up as hot in our production profiler. > Two simple performance optimizations can be tried: > - Overload the method with a {{String}} parameter, to help the JIT compiler > with it's decision to inline the method > - Avoid calling {{String.trim}} if the first character isn't whitespace > See https://github.com/apache/wicket/pull/497. -- This message was sent by Atlassian Jira (v8.20.1#820001)