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54 lines
1.9 KiB
Bash
Executable File
54 lines
1.9 KiB
Bash
Executable File
#!/bin/bash
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# collectd - contrib/exec-ksm.sh
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# Copyright (C) 2011 Florian Forster
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#
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# Permission is hereby granted, free of charge, to any person obtaining a
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# copy of this software and associated documentation files (the "Software"),
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# to deal in the Software without restriction, including without limitation
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# the rights to use, copy, modify, merge, publish, distribute, sublicense,
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# and/or sell copies of the Software, and to permit persons to whom the
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# Software is furnished to do so, subject to the following conditions:
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#
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# The above copyright notice and this permission notice shall be included in
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# all copies or substantial portions of the Software.
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#
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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# DEALINGS IN THE SOFTWARE.
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#
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# Authors:
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# Florian Forster <octo at collectd.org>
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HOSTNAME="${COLLECTD_HOSTNAME:-$(hostname -f)}"
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INTERVAL="${COLLECTD_INTERVAL:-60}"
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function read_file() {
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local type="$1"
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local type_instance="$2"
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local file_name="/sys/kernel/mm/ksm/$3"
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local ident="$HOSTNAME/exec-ksm/vmpage_number-${type_instance}"
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echo "PUTVAL \"$ident\" interval=$INTERVAL N:$(< $file_name)"
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}
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if [[ 0 -eq $(< /sys/kernel/mm/ksm/run) ]]; then
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echo "$0: KSM not active." >&2
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exit 1
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fi
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while sleep "$INTERVAL"
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do
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read_file vmpage_number shared pages_shared
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read_file vmpage_number saved pages_sharing
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read_file vmpage_number unshared pages_unshared
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read_file vmpage_number volatile pages_volatile
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read_file total_operations scan full_scans
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done
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exit 0
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