From a0a28d9efb91cbd117f225b5ceb34deaa374ea19 Mon Sep 17 00:00:00 2001 From: sharkdp Date: Sun, 4 Nov 2018 21:49:57 +0100 Subject: Update benchmark results --- README.md | 24 +++++++++++++----------- 1 file changed, 13 insertions(+), 11 deletions(-) diff --git a/README.md b/README.md index 2097185..f3fabf0 100644 --- a/README.md +++ b/README.md @@ -5,8 +5,8 @@ *A minimal, fast alternative to `du -sh`.* `diskus` is a very simple program that computes the total size of the current directory. It is a -parallelized version of `du -sh`. On my 8-core laptop, it is about nine times faster than `du` for -a cold disk cache and more than twice as fast on a warm disk cache. +parallelized version of `du -sh`. On my 8-core laptop, it is about ten times faster than `du` with +a cold disk cache and more than three times faster with a warm disk cache. ``` bash > diskus @@ -36,10 +36,11 @@ hyperfine --prepare 'sync; echo 3 | sudo tee /proc/sys/vm/drop_caches' \ | Command | Mean [s] | Min…Max [s] | |:---|---:|---:| -| `diskus` | 1.729 ± 0.012 | 1.717…1.756 | -| `sn p -d0 -j8` | 9.778 ± 0.098 | 9.587…9.904 | -| `du -sb` | 16.016 ± 0.067 | 15.923…16.147 | -| `dust -d0` | 19.845 ± 0.466 | 19.428…20.948 | +| `diskus` | 1.649 ± 0.009 | 1.640…1.663 | +| `sn p -d0 -j8` | 9.701 ± 0.067 | 9.598…9.828 | +| `du -sb` | 16.039 ± 0.069 | 15.918…16.152 | +| `dust -d0` | 19.769 ± 0.285 | 19.564…20.561 | + ### Warm disk cache @@ -48,12 +49,13 @@ On a warm disk cache, the differences are smaller: hyperfine --warmup 5 'diskus' 'sn p -d0 -j8' 'du -sb' 'dust -d0' ``` -| Command | Mean [ms] | Min…Max [ms] | +| Command | Mean [s] | Min…Max [s] | |:---|---:|---:| -| `diskus` | 465.9 ± 14.7 | 446.5…487.4 | -| `sn p -d0 -j8` | 596.4 ± 12.2 | 579.2…615.9 | -| `du -sb` | 1100.3 ± 20.5 | 1086.9…1153.0 | -| `dust -d0` | 3560.1 ± 27.8 | 3521.7…3612.8 | +| `diskus` | 0.314 ± 0.007 | 0.303…0.329 | +| `sn p -d0 -j8` | 0.622 ± 0.008 | 0.611…0.634 | +| `du -sb` | 1.130 ± 0.013 | 1.116…1.161 | +| `dust -d0` | 3.593 ± 0.057 | 3.544…3.743 | + ## Installation -- cgit v1.2.3