Post #3957086
2026-07-20 10:22 UTC
I’ve also had a chromebook with only 30 GB of slow eMMC once. Adjusting I/O caching helped noticeably:
# /etc/sysctl.d/20-flash-speed-settings.conf
# disk-settings
# https://lonesysadmin.net/2013/12/22/better-linux-disk-caching-performance-vm-dirty_ratio/
# (vm.dirty_background_ratio = 10) percent of memory to use for caching
vm.dirty_background_ratio = 15
# (vm.dirty_ratio = 20) the max percent of memory to use for caching
vm.dirty_ratio = 30
# (vm.dirty_writeback_centicecs = 5) how often the buffer is checked for work to do
vm.dirty_writeback_centisecs = 6000
# (vm.dirty_expire_centisecs = 500) sets how long something can be in the buffer
vm.dirty_expire_centisecs = 6000
About lack of space: keep the system on the eMMC and mount a thumbdrive as /home? (in /etc/fstab)
Replies (1)
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@Crozekiel@lemmy.zip 2026-07-20 17:53
Edit: ZorinOS is immutable, relying on flatpaks (high I/O and btrfs deduplication), no? I’ve not seen anything about ZorinOS being immutable, it’s basically just Ubuntu with some stuff on top. By default it uses ext4 and the software store has access to flatpaks, but also snaps and typical native linux software.