Don't lock threads#3
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On v1.3 if you are opening paths the I/O was made thread-safe by default, but if you don't need thread-safety it can be faster to ignore the I/O locks. See JuliaLang/julia#34195 for details. This fixes the performance post v1.3: Before: ```julia 689.599 μs (15 allocations: 347.34 KiB) ``` After: ```julia 243.900 μs (15 allocations: 347.34 KiB) ```
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On v1.3 if you are opening paths the I/O was made thread-safe by default, but if you don't need thread-safety it can be faster to ignore the I/O locks. See JuliaLang/julia#34195 for details. This fixes the performance post v1.3:
Before:
After: