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‎notes/comparing PCs with terminal commands.md

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---
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title: comparing PCs with terminal commands
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date: 2024-12-12
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tags:
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- pc-building
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- scripting
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- visualisation
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---
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I was given an old computer. I'd quite like to make a computer to use in my studio, and take my tower PC home to play video games (mainly/only local coop games like [Wilmot's Warehouse](https://www.wilmotswarehouse.com/), [Towerfall Ascension](https://maddymakesgamesinc.itch.io/towerfall), or [Unrailed](https://unrailed-game.com/unrailed.html), and occasionally [Gloomhaven](https://store.steampowered.com/app/780290/Gloomhaven/)).
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It's not the best, and I'd like to know what parts I would want to replace to make it suit my needs (which are vaguely "can use a modern web browser" without being slow).
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By searching the web, I found these commands to collect hardware information for a computer:
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```bash
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uname -a # vague computer information
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lscpu # cpu information
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df -h # hard drive information
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sudo dmidecode -t bios # bios information
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free -h # memory (RAM) info
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lspci -v | grep VGA -A11 # GPU info (1)
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sudo lshw -numeric -C display # GPU info (2)
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```
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I also found these commands to benchmark some things:
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```bash
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sudo apt install sysbench glmark2
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# benchmark CPU
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sysbench --test=cpu run
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# benchmark memory
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sysbench --test=memory run
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# benchmark graphics
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glmark2
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```
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I put the output of all of these commands into text files for each computer, into a directory that looks like:
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```text
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├── ./current
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│   ├── ./current/benchmarks
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│   │   ├── ./current/benchmarks/cpu
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│   │   ├── ./current/benchmarks/gpu
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│   │   └── ./current/benchmarks/memory
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│   ├── ./current/bios
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│   ├── ./current/cpu
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│   ├── ./current/disks
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│   ├── ./current/gpu
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│   ├── ./current/memory
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│   └── ./current/uname
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└── ./new
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├── ./new/benchmarks
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│   ├── ./new/benchmarks/cpu
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│   ├── ./new/benchmarks/gpu
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│   └── ./new/benchmarks/memory
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├── ./new/bios
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├── ./new/cpu
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├── ./new/disks
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├── ./new/gpu
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├── ./new/memory
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└── ./new/uname
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4 directories, 19 files
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```
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Then, I ran this command to generate a diff file to look at:
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```bash
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echo "<html><head><style>html {background: black;color: white;}del {text-decoration: none;color: red;}ins {color: green;text-decoration: none;}</style></head><body>" > compare.html
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while read file; do
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f=$(echo "${file}" | sed 's/current\///')
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git diff --no-index --word-diff "current/${f}" "new/${f}"
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| sed 's/\[\-/<del>/g' | sed 's/-\]/<\/del>/g'
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| sed -E 's/\{\+/<ins>/g' | sed -E 's/\+\}/<\/ins>/g'
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| sed '1s/^/<pre>/' | sed '$a</pre>'
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done <<< $(find current/ -type f) >> compare.html
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echo "</body></html>" >> compare.html
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```
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then I could open that html file and look very easily at the differences between the computers. Here is a snippet of the file as an example:
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<div id="comparing-pcs-diff-section">
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<style>
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#comparing-pcs-diff-section > pre {background: black;color: white;}
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#comparing-pcs-diff-section del {text-decoration: none;color: red;}
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#comparing-pcs-diff-section ins {color: green;text-decoration: none;}
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</style>
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<pre>CPU(s): <del>12</del><ins>6</ins>
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On-line CPU(s) list: <del>0-11</del><ins>0-5</ins>
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Vendor ID: <del>AuthenticAMD</del><ins>GenuineIntel</ins>
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Model name: <del>AMD Ryzen 5 1600 Six-Core Processor</del><ins>Intel(R) Core(TM) i5-9400F CPU @ 2.90GHz</ins>
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CPU family: <del>23</del><ins>6</ins>
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Model: <del>1</del><ins>158</ins>
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Thread(s) per core: <del>2</del><ins>1</ins>
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Core(s) per socket: 6
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Socket(s): 1
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</pre>
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<pre>Latency (ms):
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min: <del>0.55</del><ins>0.71</ins>
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avg: <del>0.57</del><ins>0.73</ins>
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max: <del>1.62</del><ins>1.77</ins>
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95th percentile: <del>0.63</del><ins>0.74</ins>
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sum: <del>9997.51</del><ins>9998.07</ins>
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</pre>
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<pre>
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glmark2 2021.02
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=======================================================
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OpenGL Information
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GL_VENDOR: <del>AMD</del><ins>Mesa</ins>
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GL_RENDERER: <del>AMD Radeon RX 580 Series (radeonsi, polaris10, LLVM 15.0.7, DRM 3.57, 6.9.3-76060903-generic)</del><ins>NV106</ins>
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GL_VERSION: <del>4.6</del><ins>4.3</ins> (Compatibility Profile) Mesa 24.0.3-1pop1~1711635559~22.04~7a9f319
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...
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[loop] fragment-loop=false:fragment-steps=5:vertex-steps=5: FPS: <del>9303</del><ins>213</ins> FrameTime: <del>0.107</del><ins>4.695</ins> ms
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[loop] fragment-steps=5:fragment-uniform=false:vertex-steps=5: FPS: <del>8108</del><ins>144</ins> FrameTime: <del>0.123</del><ins>6.944</ins> ms
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[loop] fragment-steps=5:fragment-uniform=true:vertex-steps=5: FPS: <del>7987</del><ins>240</ins> FrameTime: <del>0.125</del><ins>4.167</ins> ms
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=======================================================
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glmark2 Score: <del>7736</del><ins>203</ins>
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</pre>
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</div>
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It seems like the big limiting factor is the GPU. Everything else seems reasonable to leave in there.
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As ever, I find `git diff --no-index` a highly invaluable tool.

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