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22 lines
451 B
Bash
22 lines
451 B
Bash
#!/bin/sh
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#
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# $FreeBSD$
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set -e
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set -u
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UNCOMP_ARC=$(sysctl -n kstat.zfs.misc.arcstats.uncompressed_size)
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COMP_ARC=$(sysctl -n kstat.zfs.misc.arcstats.compressed_size)
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value=$(bc -e scale=2 -e "$UNCOMP_ARC/$COMP_ARC" -e quit)
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cat <<EOM
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graph_title ZFS ARC compression ratio
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graph_vlabel ratio
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graph_category ZFS
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graph_info This graph shows the ZFS ARC compression (uncompressed vs. compressed) ratio
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ratio.label ratio
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ratio.value $value
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EOM
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exit 0
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