Optimize some computation-intensive code #9721
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- Avoid recursions deeper than 10 - Avoid copying tail after last dropped element
replace filter by filterConserve if - the call is warm (called for more than 10% of source lines) - the filter predicate has a high chance of succeeding Avoid filter altogether if there's a faster alternative
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test performance please |
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performance test scheduled: 9 job(s) in queue, 1 running. |
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Performance test finished successfully: Visit http://dotty-bench.epfl.ch/9721/ to see the changes. Benchmarks is based on merging with master (1ab71c1) |
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test performance please |
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performance test scheduled: 8 job(s) in queue, 1 running. |
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Performance test finished successfully: Visit http://dotty-bench.epfl.ch/9721/ to see the changes. Benchmarks is based on merging with master (1ab71c1) |
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This looks like a consistent win (~6%) for stdlib, and in the noise for the others. So it looks worthwhile to merge this. |
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