According to the Phoronix reader involved with the Le9 work, he’s reportedly able to run Mozilla Firefox with 37 tabs as well as having Skype, Discord, two PDFs, and LibreOffice all running on an ageing decade old system with just 2GB of RAM.
Protection of clean file pages (page cache) may be used to prevent thrashing, reducing I/O under memory pressure, avoid high latency and prevent livelock in near-OOM conditions. The current le9 patches provide two sysctl knobs for soft and hard protection of clean file pages. The current le9 patches are based on patches that were originally created by Mandeep Singh Baines (2010) and Marcus Linsner (2018-2019).
Patch for Intel’s driver DRM/i915 GEM shrinker to use “le9” patch: https://github.com/hakavlad/disable-i915-gem-shrinker
User experience: https://notes.valdikss.org.ru/linux-for-old-pc-from-2007/en/
“There’s a video demonstration, as well as ready-to-use LiveCD with le9 patch.”
Suggestion for applying patch to openSUSE: Bug 1188861](https://bugzilla.opensuse.org/show_bug.cgi?id=1188861)
Vote for it to get it applied.