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this post was submitted on 22 Feb 2025
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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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Did you need to compile a kernel to enable it? I’ve just done the project of installing Debian on a 20 year old iMac with 2.5 GB of RAM, and while zram definitely seems to help, I’d love to try this as well.
Yes, but maybe debian enables it by default? You can check by running
cat /sys/kernel/mm/lru_gen/enabledIf the result is
0x0007, it means MGLRU is fully enabled.Debian does not enable it by default, cat /sys/kernel/mm/lru_gen/enabled will be a 0.