mrcharles
23d71761c8
%-sorted usage-vs-limit view across all apps + 24h memcg-OOM evidence. Backs the founder-directed monitor/adjust-over-time loop. Meat: https://projects.knownelement.com/issues/731#note-3929
41 lines
1.7 KiB
Bash
Executable File
41 lines
1.7 KiB
Bash
Executable File
#!/usr/bin/env bash
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# perf/memcensus-util.sh — live per-app memory utilization census (all apps,
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# %-sorted) + 24h memcg-OOM evidence. Read-only. [#685/#731]
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#
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# Run (from a checkout):
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# VM_IP=my.knownelement.com VM_USER=root timeout 120 bash tests/remote.sh vm-file perf/memcensus-util.sh
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# Needs: docker + awk on the host. Pairs with the daily monitor automation
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# (founder directive 2026-09-02: monitor/adjust over time — bump >80% utilized
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# apps, never decrease, never touch bi/platform services).
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set -u
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TMP=$(mktemp -d) || exit 1
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trap 'rm -rf "$TMP"' EXIT
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docker stats --no-stream --format "{{.Name}} {{.MemUsage}}" > "$TMP/usage"
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docker ps --format "{{.Names}}" | while read -r n; do
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lim=$(docker inspect "$n" --format '{{.HostConfig.Memory}}' 2>/dev/null)
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fq=$(docker inspect "$n" --format '{{range .Config.Env}}{{println .}}{{end}}' 2>/dev/null \
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| grep -m1 '^CLOUDRON_APP_DOMAIN=' | cut -d= -f2)
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# shellcheck disable=SC2312 # pipe to env-print is the only way to read container env here
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[ -n "$fq" ] && printf '%s|%s|%s\n' "$n" "$fq" "$lim"
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done > "$TMP/limits"
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awk 'NR==FNR {
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gsub(/,/,"");
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if ($2 ~ /G/) u[$1] = $2 * 1024; else u[$1] = $2 + 0;
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next
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}
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{
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n = split($0, f, "|")
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lim = f[3] / 1048576; use = u[f[1]] + 0
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if (lim >= 200 && use > 0)
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printf "%5.1f%% | %7.0fMB used | %6.0fMB limit | %s\n", use/lim*100, use, lim, f[2]
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}' "$TMP/usage" "$TMP/limits" | sort -rn | head -30
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echo "== memcg OOM events, last 24h =="
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journalctl --since "-24 hours" --no-pager 2>/dev/null \
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| grep -i "memory cgroup out of memory" | tail -6
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echo "(count: $(journalctl --since '-24 hours' --no-pager 2>/dev/null | grep -ci 'memory cgroup out of memory'))"
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