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35 lines
1.1 KiB
Text
35 lines
1.1 KiB
Text
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# Should we use swap on ZRAM?
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ZRAM_ENABLE=1
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# Total system RAM, in KB:
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MEMTOTAL=$(echo $(cat /proc/meminfo | grep ^MemTotal:) | cut -f 2 -d ' ')
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# ZRAM device size. We'll make this the same size as the system RAM.
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# Assuming 1:4 compression, this would (if filled) occupy 1/4 of the system
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# RAM. Until pages are swapped to ZRAM, the device occupies almost no RAM.
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# As far as what's optimal here, I've heard all kinds of theories. So maybe
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# you want to set this to twice the system RAM. Or half. Or something else
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# entirely.
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ZRAMSIZE=$MEMTOTAL
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# In case of a 32-bit kernel, we are limited to 4G maximum ZRAM device size.
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# If ZRAMSIZE size is greater than 4G, then use 4G for the ZRAMSIZE.
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if [ "$(uname -m)" = "i686" ]; then
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if [ "$ZRAMSIZE" -gt "4194304" ]; then
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ZRAMSIZE=4194304
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fi
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fi
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# Number of ZRAM devices. We are only going to use one of them, so there's no
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# need to increase this unless you'll be needing additional ZRAM devices for
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# other purposes.
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ZRAMNUMBER=1
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# Set the compression algorithm.
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# Use zstd for best results.
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# Nothing else makes any sense.
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ZRAMCOMPRESSION=zstd
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# Set the swap priority for the ZRAM device:
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ZRAMPRIORITY=100
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