David Heinemeier HanssonandClaude Opus 5
187c2ecf7f
zram-size = min(ram, 8192) is Fedora's default since F34, where zram-fraction=1.0 with max-zram-size=8192 has run on desktops for five years. The previous min(ram / 2, 8192) halved that on every machine below 16G with nothing behind the fraction; at 16G and above the two already agree. A changed size only reaches a running device on the next boot, so the migration resizes an empty device now and asks for a reboot otherwise. It asks the generator what the config evaluates to rather than repeating the expression here, and does neither when the device already matches. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
20 lines
946 B
Plaintext
20 lines
946 B
Plaintext
# Compressed swap in RAM, sized the way Fedora has shipped it since F34: all of
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# memory, capped at 8G. Fedora weighed the worry that incompressible pages would
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# tie up RAM against five years of desktops reporting no trouble from it, which
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# is more field evidence than we could gather on our own.
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#
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# The cap is what bounds the downside. A browser-heavy desktop can drive zstd
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# down near 1.1:1, where the device backs far less than it advertises, and 8G
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# keeps that bounded on any machine large enough to notice. The disk swapfile
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# sits behind it at pri=0 for everything past that.
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#
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# Fedora spells this zram-fraction = 1.0 with max-zram-size = 8192; both keys
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# are deprecated in favour of zram-size, which computes the same numbers.
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[zram0]
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zram-size = min(ram, 8192)
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compression-algorithm = zstd
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# Above the pri=0 that omarchy-hibernation-setup gives the disk swapfile, so
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# zram absorbs everything until it's full.
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swap-priority = 100
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