Parse hex strings to numbers more efficiently #4160
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Use the Integer.parseInt variant added in Java 9 that allows parsing of numbers from a String with offsets, avoiding the need to create any substrings.
kilink
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@kilink how did you find this improvement? profiler or some static code analysis? something else? |
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The performance will be the removal of the subsrtring iteration and memory allocation
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A combination of flame graphs from services, and just reading lots of code and seeing patterns. For instance, I'm not sure when exactly graphql-java started targeting JDK 11, but whenever we move the baseline up I see it as an opportunity to leverage new APIs that are either more efficient or more concise. Some of this is just proactive and something I enjoy contributing. |
Thanks for contributing! |
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Use the Integer.parseInt variant added in Java 9 that allows parsing of numbers from a String with offsets, avoiding the need to create any substrings.