foot/doc/benchmark.md

Benchmarks

vtebench

All benchmarks are done using vtebench:

vtebench -h $(tput lines) -w $(tput cols) -b 104857600 alt-screen-random-write > ~/alt-random
vtebench -c -h $(tput lines) -w $(tput cols) -b 104857600 alt-screen-random-write > ~/alt-random-colors
vtebench -h $(tput lines) -w $(tput cols) -b 10485760 scrolling > ~/scrolling
vtebench -h $(tput lines) -w $(tput cols) -b 104857600 scrolling --fill-lines > ~/scrolling-filled-lines
vtebench -h $(tput lines) -w $(tput cols) -b 10485760 unicode-random-write > ~/unicode-random

They were "executed" using benchmark.py, which will load each file into memory, and then print it to the terminal. This is done 20 times for each test. Then it calculates the mean and standard deviation for each test.

2020-06-05

System

CPU: i9-9900

RAM: 64GB

Graphics: Radeon RX 5500XT

Terminal configuration

Geometry: 2040x1884

Font: Fantasque Sans Mono 10.00pt/23px

Scrollback: 10000 lines

Results

Benchmark	Foot (GCC+PGO) 1.3.0.r59	Alacritty 0.4.3	URxvt 9.22	XTerm 356
alt-random	0.450s ±0.009	0.905s ±0.003	1.151s ±0.004	12.906s ±0.078
alt-random-colors	0.451s ±0.013	0.931s ±0.005	1.192s ±0.005	11.858s ±0.155
scrolling	1.181s ±0.036	1.096s ±0.022	1.080s ±0.007	38.244s ±0.118
scrolling-filled-lines	0.878s ±0.015	1.320s ±0.040	1.251s ±0.006	6.812s ±0.031
unicode-random	0.926s ±1.179	0.089s ±0.001	24.039s ±3.559	26.558s ±3.841

2020-05-31

System

CPU: i5-8250U

RAM: 8GB

Graphics: Intel UHD Graphcis 620

Terminal configuration

Geometry: 953x1023

Font: Dina:pixelsize=12

Scrollback=10000 lines

Results

Benchmark	Foot (GCC+PGO) 1.3.0.r59	Alacritty 0.4.2	URxvt 9.22	St 0.8.3	XTerm 356
alt-random	0.791s ±0.080	1.558s ±0.038	1.746s ±0.065	2.628s ±0.085	1.706s ±0.064
alt-random-colors	0.830s ±0.076	1.587s ±0.041	2.049s ±0.118	3.033s ±0.129	2.109s ±0.131
scrolling	1.603s ±0.070	1.464s ±0.098	1.439s ±0.035	3.760s ±0.113	1.459s ±0.036
scrolling-filled-lines	1.888s ±0.021	2.334s ±0.078	2.145s ±0.074	3.372s ±0.078	2.144s ±0.091
unicode-random	1.545s ±0.229	0.164s ±0.012	11.180s ±0.342	crashed	11.389s ±0.269