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speedup bash completion loading suggestion in docs #6105

Merged
merged 1 commit into from
May 7, 2019
Merged

speedup bash completion loading suggestion in docs #6105

merged 1 commit into from
May 7, 2019

Commits on May 7, 2019

  1. speedup bash completion loading suggestion in docs 

    The current suggestion for users shells out to `brew --prefix` three separate times, which has a non-zero overhead (as per quick benchmark below, approx 20ms per invocation). By making a minor change, the first invocation can be stored in a local variable to reduce shell startup time.

```
$ hyperfine --warmup=3 'brew --prefix'       
Benchmark Homebrew#1: brew --prefix
  Time (mean ± σ):      21.3 ms ±   1.5 ms    [User: 8.8 ms, System: 10.6 ms]
  Range (min … max):    20.3 ms …  37.0 ms    128 runs
```
    @mroth
    mroth committed May 7, 2019
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