# Benchmarks

## vtebench

All benchmarks are done using [vtebench](https://github.com/alacritty/vtebench):

```sh
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](../scripts/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.


## 2020-05-31

### System

CPU: i5-8250U

RAM: 8GB RAM

Graphics: Intel UHD Graphcis 620


### Terminal configuration

Geometry: 953x1023

Font: Dina:pixelsize=12

scrollback=10000


| Benchmark              | Foot (GCC+PGO)[^1] | Alacritty [^2] |     URxvt [^3] |       St [^4] |    XTerm [^5] |
|------------------------|-------------------:|---------------:|---------------:|--------------:|--------------:|
| 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 |

[^1]: 1.3.0.r59
[^2]: 0.4.2
[^3]: 9.22
[^4]: 0.8.3
[^5]: 356