67 lines
1.7 KiB
Markdown
67 lines
1.7 KiB
Markdown
# What?
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## Screenshot
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## Installation
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### Archlinux
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There's an [AUR package](https://aur.archlinux.org/packages/c-lolcat):
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```bash
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$ yaourt -S c-lolcat
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```
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### Others
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```bash
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$ make && sudo make install
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```
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If this can't find musl and you have it installed somewhere, run
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```bash
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$ make MUSLDIR=/path/to/musl
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```
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If you don't have a musl around yet, the easiest way to build is to run
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```bash
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$ git submodule init
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$ git submodule update
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$ make
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```
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This will checkout and build musl in this repository's ```musl``` dir.
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## Why?
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This `lolcat` clone is an attempt to reduce the world's carbon dioxide emissions by optimizing inefficient code. It's >10x as fast and <0.1% as large as the original one.
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```bash
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newton~/d/lolcat <3 dmesg>foo
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newton~/d/lolcat <3 time upstream/bin/lolcat foo
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13.51user 1.34system 0:15.99elapsed 92%CPU (0avgtext+0avgdata 10864maxresident)k
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0inputs+0outputs (0major+1716minor)pagefaults 0swaps
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newton~/d/lolcat <3 time ./lolcat foo
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0.02user 0.00system 0:00.09elapsed 34%CPU (0avgtext+0avgdata 1936maxresident)k
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0inputs+0outputs (0major+117minor)pagefaults 0swaps
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```
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Bonus comparison with [python-lolcat](https://github.com/tehmaze/lolcat/):
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```bash
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newton~/d/lolcat <3 dmesg>foo
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$ time python-lolcat foo
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12.27user 0.00system 0:12.29elapsed 99%CPU (0avgtext+0avgdata 11484maxresident)k
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0inputs+0outputs (0major+1627minor)pagefaults 0swaps
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$ time c-lolcat foo
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0.29user 0.00system 0:00.30elapsed 98%CPU (0avgtext+0avgdata 468maxresident)k
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0inputs+0outputs (0major+21minor)pagefaults 0swaps
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```
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(Read: ```c-lolcat << python-lolcat << ruby-lolcat```)
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