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Added FreeBSD memory model

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This commit is contained in:
Justin Coffman 2019-11-13 22:03:12 -05:00
commit a8f06a8e79
1 changed files with 18 additions and 6 deletions
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24
usr/lib/byobu/memory
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@ -36,6 +36,18 @@ __memory() {
esac
[ -n "${free}" -a -n "${total}" -a -n "${buffers}" -a -n "${cached}" ] && break;
done < /proc/meminfo
elif [ $(uname) = 'FreeBSD']; then
# FreeBSD support
# Adapted from https://www.cyberciti.biz/files/scripts/freebsd-memory.pl.txt
# Copyright (c) 2003-2004 Ralf S. Engelschall <rse@engelschall.com>
total=$(($(sysctl -n hw.physmem)/1024))
page_size=$(sysctl -n hw.pagesize)
vm_inactive=$(($(sysctl -n vm.stats.vm.v_inactive_count)*$page_size))
vm_cached=$(($(sysctl -n vm.stats.vm.v_cache_count)*$page_size))
vm_free=$(($(sysctl -n vm.stats.vm.v_free_count)*$page_size))
free=$((($vm_cached+$vm_free+$vm_inactive)/1024))
buffers=0
cached=0
elif eval $BYOBU_TEST vm_stat >/dev/null 2>&1; then
# MacOS support
# calculation borrowed from http://apple.stackexchange.com/a/48195/18857
@ -48,12 +60,12 @@ __memory() {
buffers=0
cached=0
fi
kb_main_used=$(($total-$free))
buffers_plus_cached=$(($buffers+$cached))
# "free output" buffers and cache (output from 'free')
fo_buffers=$(($kb_main_used - $buffers_plus_cached))
fpdiv $((100*${fo_buffers})) "${total}" 0;
usage=${_RET}
kb_main_used=$(($total-$free))
buffers_plus_cached=$(($buffers+$cached))
# "free output" buffers and cache (output from 'free')
fo_buffers=$(($kb_main_used - $buffers_plus_cached))
fpdiv $((100*${fo_buffers})) "${total}" 0;
usage=${_RET}
if [ $total -ge 1048576 ]; then
fpdiv "$total" 1048567 1
total=${_RET}