wehub-resource-sync
88 lines
2.5 KiB
Bash
Executable File
88 lines
2.5 KiB
Bash
Executable File
#!/usr/bin/env bash
|
|
# Sample CPU and memory usage while running a command, then post mermaid
|
|
# xychart-beta line charts to GITHUB_STEP_SUMMARY (or stdout if running
|
|
# locally outside GitHub Actions).
|
|
#
|
|
# Usage: dev/profile.sh <command> [args...]
|
|
#
|
|
# Environment overrides:
|
|
# PROFILE_INTERVAL_SECONDS sampling interval in seconds (default: 2)
|
|
# PROFILE_DATA_FILE path to write raw CSV samples (default: /tmp/profile-metrics.csv)
|
|
#
|
|
# Linux-only: reads /proc/stat and /proc/meminfo.
|
|
|
|
set -uo pipefail
|
|
|
|
SAMPLE_FILE=${PROFILE_DATA_FILE:-/tmp/profile-metrics.csv}
|
|
SAMPLE_INTERVAL_SECONDS=${PROFILE_INTERVAL_SECONDS:-2}
|
|
SUMMARY_FILE=${GITHUB_STEP_SUMMARY:-/dev/stdout}
|
|
|
|
if [ ! -r /proc/stat ] || [ ! -r /proc/meminfo ]; then
|
|
echo "profile.sh: /proc/stat or /proc/meminfo unavailable; running command without sampling" >&2
|
|
exec "$@"
|
|
fi
|
|
|
|
(
|
|
printf 'timestamp,cpu_pct,mem_gb\n'
|
|
prev_total=0
|
|
prev_idle=0
|
|
while true; do
|
|
read _ u n s i io irq si st _ < /proc/stat
|
|
t=$((u + n + s + i + io + irq + si + st))
|
|
if [ "$prev_total" -ne 0 ]; then
|
|
dt=$((t - prev_total))
|
|
di=$(((i + io) - prev_idle))
|
|
cpu=$((dt > 0 ? 100 * (dt - di) / dt : 0))
|
|
else
|
|
cpu=0
|
|
fi
|
|
prev_total=$t
|
|
prev_idle=$((i + io))
|
|
mem=$(awk '/MemTotal/{T=$2} /MemAvailable/{A=$2} END{printf "%.2f", (T-A)/1024/1024}' /proc/meminfo)
|
|
printf '%s,%s,%s\n' "$(date +%s)" "$cpu" "$mem"
|
|
sleep "$SAMPLE_INTERVAL_SECONDS"
|
|
done
|
|
) >"$SAMPLE_FILE" 2>&1 &
|
|
sampler_pid=$!
|
|
|
|
cleanup() {
|
|
kill "$sampler_pid" 2>/dev/null || true
|
|
wait "$sampler_pid" 2>/dev/null || true
|
|
|
|
if [ ! -s "$SAMPLE_FILE" ]; then
|
|
return 0
|
|
fi
|
|
|
|
local data_csv=/tmp/profile-data.csv
|
|
local sampled=/tmp/profile-sampled.csv
|
|
local n step total cpu_list mem_list
|
|
tail -n +2 "$SAMPLE_FILE" >"$data_csv"
|
|
n=$(wc -l <"$data_csv")
|
|
step=$((n / 30 + 1))
|
|
awk -v step="$step" 'NR % step == 0' "$data_csv" >"$sampled"
|
|
total=$(awk -F, 'NR==1{first=$1} END{print $1-first}' "$data_csv")
|
|
cpu_list=$(awk -F, '{printf "%s,",$2}' "$sampled" | sed 's/,$//')
|
|
mem_list=$(awk -F, '{printf "%s,",$3}' "$sampled" | sed 's/,$//')
|
|
|
|
{
|
|
echo '## CPU usage (%)'
|
|
echo '```mermaid'
|
|
echo 'xychart-beta'
|
|
echo " x-axis \"Elapsed (s)\" 0 --> $total"
|
|
echo ' y-axis "CPU %" 0 --> 100'
|
|
echo " line [$cpu_list]"
|
|
echo '```'
|
|
echo
|
|
echo '## Memory used (GB)'
|
|
echo '```mermaid'
|
|
echo 'xychart-beta'
|
|
echo " x-axis \"Elapsed (s)\" 0 --> $total"
|
|
echo ' y-axis "Memory GB"'
|
|
echo " line [$mem_list]"
|
|
echo '```'
|
|
} >>"$SUMMARY_FILE"
|
|
}
|
|
trap cleanup EXIT
|
|
|
|
"$@"
|