ic-builder
3680f1dba1
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- monitoring/node-install.sh: idempotent per-node installer (sar HISTORY=28, three oneshot timers, per-node conf with qemu.slice/lxc cgroup globs) - monitoring/collectors + systemd units: iotop-snap 15min, perfsnap 60s, psi-textfile 15s (now sources /etc/knelperf/perfsnap.conf; multi-glob) - monitoring/toolbox: pct LXC (vmid 950, privileged, apparmor unconfined, stopped at rest) + knelperf-toolbox wrapper + Dockerfile variant - monitoring/deploy-fleet.sh: workstation-side rollout driver - piloted on pfv-tsys1: per-VM PSI gauges verified live Redmine: https://projects.knownelement.com/issues/826
23 lines
928 B
Bash
23 lines
928 B
Bash
#!/usr/bin/env bash
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# KNELPerf iotop snapshot — periodic batch samples of active per-process I/O.
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# Complements sar (system-wide device stats) with the WHO behind the I/O.
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# Env (or /etc/knelperf/perfsnap.conf):
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# KNELPERF_IOTOP_LOGDIR default /var/log/knelperf-iotop
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# Output: daily file iotop-YYYYMMDD.log; per tick one header line then
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# 3 batch iterations x 2s of processes with outstanding I/O (-botqq -k).
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# Docs: https://community.turnsys.com/t/328
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set -u
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CONF=/etc/knelperf/perfsnap.conf
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[ -r "$CONF" ] && . "$CONF"
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LOGDIR=${KNELPERF_IOTOP_LOGDIR:-/var/log/knelperf-iotop}
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mkdir -p "$LOGDIR"
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F="$LOGDIR/iotop-$(date +%Y%m%d).log"
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{
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echo "### $(date -Iseconds)"
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iotop -botqq -k -n 3 -d 2 2>/dev/null
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} >> "$F"
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# retention: 14 days; rotate the live file at 25MB
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find "$LOGDIR" -name 'iotop-*.log*' -mtime +14 -delete 2>/dev/null
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[ "$(wc -c <"$F" 2>/dev/null || echo 0)" -gt 26214400 ] && mv "$F" "$F.1"
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exit 0
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