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this post was submitted on 05 Aug 2024
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Linux
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Linux is a family of open source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991 by Linus Torvalds. Linux is typically packaged in a Linux distribution (or distro for short).
Distributions include the Linux kernel and supporting system software and libraries, many of which are provided by the GNU Project. Many Linux distributions use the word "Linux" in their name, but the Free Software Foundation uses the name GNU/Linux to emphasize the importance of GNU software, causing some controversy.
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Thank you for the suggestion. I am unfamiliar with this, but I am reading about it now.
For what it's worth, I've never had to change my io scheduler in the nearly twenty years I've used Linux. You can check your current scheduler with the following command:
cat /sys/block/sda/queue/scheduler(change the block device to whatever yours is...sda, nvme0n1, etc.).In my case, it was already bfq:
one mq-deadline kyber [bfq]Even with nvme drives which supposedly "don't need" to use BFQ, I STILL always swap it since it maintains responsiveness across the system during heavy IO loads. I used to have similar full system freezes when downloading steam games which notoriously overload your IO in Linux. BFQ was the solution every single time.
Edit Try following the instructions detailed in this post to add a systemd rule to set the scheduler: https://stackoverflow.com/questions/1009577/selecting-a-linux-i-o-scheduler
The second answer that shows an actual rules.d file example has always worked for me. If using nvme or old school spinning rust you'll need to change it up a bit. Instead of "noop" set it to "BFQ".