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text/gemini; lang=en # Old Computer Challenge Have you heard of the Old Computer Challenge running from July 10th to July 16th 2023? It is a chance to dig out your really old computers and relive those far gone days. The challenge is to use a computer with 512MB RAM and 1 CPU throttled to it's lowest frequency. => https://dataswamp.org/~solene/2023-06-04-old-computer-challenge-v3.html Read more here: https://dataswamp.org/~solene/2023-06-04-old-computer-challenge-v3.html ### My Plan So far this is my plan for equipment. I don't have a really old computer so I will need to throttle some not-so-old equipment. ==Lenovo IdeaPad== I have a 12 year old IdeaPad with an AMD E1 CPU. I have managed to hobble this device and will run: * OS: antiX Linux * RAM: 512MB limited via Grub options * CPU: Limit to 1 CPU core via Grub options * CPU frequency: Limit to the lowest value via TLP settings To accomplish this you can set the Grub command line value to: > GRUB_CMDLINE_LINUX_DEFAULT="quiet maxcpus=1 mem=512M" For TLP settings edit /etc/tlp.conf to set these values: > TLP_ENABLE=1 > CPU_SCALING_GOVERNOR_ON_AC=powersave > CPU_SCALING_GOVERNOR_ON_BAT=powersave And there, I now have 777Mhz single core IdeaPad with 512MB RAM! ### Backup Plan As a backup plan I also have a Knoppix install. However this is a bit more of a pain since I have to use these options manually at every boot: > knoppix maxcpus=1 mem=512M Then after booting I need to rate limit the CPU by changing the value of a file like so: > su > echo 777000 | tee /sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq ### HaikuOS Virtual Machine I will also be running HaikuOS in a VirtualBox virtual machine. I tried running HaikuOS on my IdeaPad but there was no way to limit the CPU frequency, apparently there aren't power saving drivers to do that with this CPU. But in a VM I can set it to use only 1 CPU then set an execution cap on the CPU. So I will be running: * Host OS: Windows 10 * Host CPU: i5 8500 3GHz * VirtualBox OS: Haiku OS * VirtualBox RAM: 512MB * VirtualBox CPU: 1 with execution cap of 25% Will you join us on July 10th? ### Daily Logs (sort of) => /gemlog/2023-07-10-OCC-day-1.gmi Day 1 => /gemlog/2023-07-13-OCC-days-2-to-4.gmi Days 2 to 4 => /gemlog/2023-07-26-OCC-days-5-7.gmi Days 5 to 7 - In Which Life Interrupts ### Related posts: => /gemlog/tags/linux Posts with tag 'linux' => /gemlog/tags/haikuos Posts with tag 'haikuos' => /gemlog/tags/old-computer-challenge Posts with tag 'old-computer-challenge' ``` Post metadata tags: Linux, HaikuOS, Old Computer Challenge timestamp: 2023-06-16T19:00:57-04:00 ```

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