Benchmark capture and plot
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This commit is contained in:
2026-03-18 21:23:23 +01:00
parent 970cee2c0e
commit fc3d121599
9 changed files with 1157 additions and 43 deletions

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@@ -477,4 +477,35 @@ for (let i = 0; i < runs; i += 1) {
}
console.log(line);
}
// Structured JSON output for automation (bench:update pipeline)
if (process.env.BENCH_JSON_OUT) {
const jsonSummary = {};
const serverKeys = [
["parrhesia-pg", "parrhesia"],
["parrhesia-memory", "parrhesiaMemory"],
];
if (hasStrfry) serverKeys.push(["strfry", "strfry"]);
if (hasNostrRs) serverKeys.push(["nostr-rs-relay", "nostrRsRelay"]);
for (const [outputKey, summaryKey] of serverKeys) {
const s = summary[summaryKey];
jsonSummary[outputKey] = {
connect_avg_ms: s.connectAvgMs,
connect_max_ms: s.connectMaxMs,
echo_tps: s.echoTps,
echo_mibs: s.echoSizeMiBS,
event_tps: s.eventTps,
event_mibs: s.eventSizeMiBS,
req_tps: s.reqTps,
req_mibs: s.reqSizeMiBS,
};
}
fs.writeFileSync(
process.env.BENCH_JSON_OUT,
JSON.stringify(jsonSummary, null, 2) + "\n",
"utf8"
);
}
NODE

329
scripts/run_bench_update.sh Executable file
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@@ -0,0 +1,329 @@
#!/usr/bin/env bash
set -euo pipefail
ROOT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
cd "$ROOT_DIR"
usage() {
cat <<'EOF'
usage:
./scripts/run_bench_update.sh
Runs the benchmark suite (3 runs by default), then:
1) Appends structured results to bench/history.jsonl
2) Generates bench/chart.svg via gnuplot
3) Updates the comparison table in README.md
Environment:
PARRHESIA_BENCH_RUNS Number of runs (default: 3)
PARRHESIA_BENCH_MACHINE_ID Machine identifier (default: hostname -s)
All PARRHESIA_BENCH_* knobs from run_bench_compare.sh are forwarded.
EOF
}
if [[ "${1:-}" == "-h" || "${1:-}" == "--help" ]]; then
usage
exit 0
fi
# --- Configuration -----------------------------------------------------------
BENCH_DIR="$ROOT_DIR/bench"
HISTORY_FILE="$BENCH_DIR/history.jsonl"
CHART_FILE="$BENCH_DIR/chart.svg"
GNUPLOT_TEMPLATE="$BENCH_DIR/chart.gnuplot"
MACHINE_ID="${PARRHESIA_BENCH_MACHINE_ID:-$(hostname -s)}"
GIT_TAG="$(git describe --tags --abbrev=0 2>/dev/null || echo 'untagged')"
GIT_COMMIT="$(git rev-parse --short=7 HEAD)"
TIMESTAMP="$(date -u +%Y-%m-%dT%H:%M:%SZ)"
RUNS="${PARRHESIA_BENCH_RUNS:-3}"
mkdir -p "$BENCH_DIR"
WORK_DIR="$(mktemp -d)"
trap 'rm -rf "$WORK_DIR"' EXIT
JSON_OUT="$WORK_DIR/bench_summary.json"
RAW_OUTPUT="$WORK_DIR/bench_output.txt"
# --- Phase 1: Run benchmarks -------------------------------------------------
echo "Running ${RUNS}-run benchmark suite..."
PARRHESIA_BENCH_RUNS="$RUNS" \
BENCH_JSON_OUT="$JSON_OUT" \
./scripts/run_bench_compare.sh 2>&1 | tee "$RAW_OUTPUT"
if [[ ! -f "$JSON_OUT" ]]; then
echo "Benchmark JSON output not found at $JSON_OUT" >&2
exit 1
fi
# --- Phase 2: Append to history ----------------------------------------------
echo "Appending to history..."
node - "$JSON_OUT" "$TIMESTAMP" "$MACHINE_ID" "$GIT_TAG" "$GIT_COMMIT" "$RUNS" "$HISTORY_FILE" <<'NODE'
const fs = require("node:fs");
const [, , jsonOut, timestamp, machineId, gitTag, gitCommit, runsStr, historyFile] = process.argv;
const servers = JSON.parse(fs.readFileSync(jsonOut, "utf8"));
const entry = {
timestamp,
machine_id: machineId,
git_tag: gitTag,
git_commit: gitCommit,
runs: Number(runsStr),
servers,
};
fs.appendFileSync(historyFile, JSON.stringify(entry) + "\n", "utf8");
console.log(" entry: " + gitTag + " (" + gitCommit + ") on " + machineId);
NODE
# --- Phase 3: Generate chart --------------------------------------------------
echo "Generating chart..."
node - "$HISTORY_FILE" "$MACHINE_ID" "$WORK_DIR" <<'NODE'
const fs = require("node:fs");
const path = require("node:path");
const [, , historyFile, machineId, workDir] = process.argv;
if (!fs.existsSync(historyFile)) {
console.log(" no history file, skipping chart generation");
process.exit(0);
}
const lines = fs.readFileSync(historyFile, "utf8")
.split("\n")
.filter(l => l.trim().length > 0)
.map(l => JSON.parse(l));
// Filter to current machine
const entries = lines.filter(e => e.machine_id === machineId);
if (entries.length === 0) {
console.log(" no history entries for machine '" + machineId + "', skipping chart");
process.exit(0);
}
// Sort chronologically, deduplicate by tag (latest wins)
entries.sort((a, b) => a.timestamp.localeCompare(b.timestamp));
const byTag = new Map();
for (const e of entries) {
byTag.set(e.git_tag, e);
}
const deduped = [...byTag.values()];
// Determine which non-parrhesia servers are present
const baselineServerNames = ["strfry", "nostr-rs-relay"];
const presentBaselines = baselineServerNames.filter(srv =>
deduped.some(e => e.servers[srv])
);
// Compute averages for baseline servers (constant horizontal lines)
const baselineAvg = {};
for (const srv of presentBaselines) {
const vals = deduped.filter(e => e.servers[srv]).map(e => e.servers[srv]);
baselineAvg[srv] = {};
for (const metric of Object.keys(vals[0])) {
const valid = vals.map(v => v[metric]).filter(Number.isFinite);
baselineAvg[srv][metric] = valid.length > 0
? valid.reduce((a, b) => a + b, 0) / valid.length
: NaN;
}
}
// Metrics to chart
const chartMetrics = [
{ key: "event_tps", label: "Event Throughput (TPS) — higher is better", file: "event_tps.tsv", ylabel: "TPS" },
{ key: "req_tps", label: "Req Throughput (TPS) — higher is better", file: "req_tps.tsv", ylabel: "TPS" },
{ key: "echo_tps", label: "Echo Throughput (TPS) — higher is better", file: "echo_tps.tsv", ylabel: "TPS" },
{ key: "connect_avg_ms", label: "Connect Avg Latency (ms) — lower is better", file: "connect_avg_ms.tsv", ylabel: "ms" },
];
// Write per-metric TSV files
for (const cm of chartMetrics) {
const header = ["tag", "parrhesia-pg", "parrhesia-memory"];
for (const srv of presentBaselines) header.push(srv);
const rows = [header.join("\t")];
for (const e of deduped) {
const row = [
e.git_tag,
e.servers["parrhesia-pg"]?.[cm.key] ?? "NaN",
e.servers["parrhesia-memory"]?.[cm.key] ?? "NaN",
];
for (const srv of presentBaselines) {
row.push(baselineAvg[srv]?.[cm.key] ?? "NaN");
}
rows.push(row.join("\t"));
}
fs.writeFileSync(path.join(workDir, cm.file), rows.join("\n") + "\n", "utf8");
}
// Generate gnuplot plot commands (handles variable column counts)
const serverLabels = ["parrhesia-pg", "parrhesia-memory"];
for (const srv of presentBaselines) serverLabels.push(srv + " (avg)");
const plotLines = [];
for (const cm of chartMetrics) {
const dataFile = `data_dir."/${cm.file}"`;
plotLines.push(`set title "${cm.label}"`);
plotLines.push(`set ylabel "${cm.ylabel}"`);
const plotParts = [];
// Column 2 = parrhesia-pg, 3 = parrhesia-memory, 4+ = baselines
plotParts.push(`${dataFile} using 0:2:xtic(1) lt 1 title "${serverLabels[0]}"`);
plotParts.push(`'' using 0:3 lt 2 title "${serverLabels[1]}"`);
for (let i = 0; i < presentBaselines.length; i++) {
plotParts.push(`'' using 0:${4 + i} lt ${3 + i} title "${serverLabels[2 + i]}"`);
}
plotLines.push("plot " + plotParts.join(", \\\n "));
plotLines.push("");
}
fs.writeFileSync(
path.join(workDir, "plot_commands.gnuplot"),
plotLines.join("\n") + "\n",
"utf8"
);
console.log(" " + deduped.length + " tag(s), " + presentBaselines.length + " baseline server(s)");
NODE
if [[ -f "$WORK_DIR/plot_commands.gnuplot" ]]; then
gnuplot \
-e "data_dir='$WORK_DIR'" \
-e "output_file='$CHART_FILE'" \
"$GNUPLOT_TEMPLATE"
echo " chart written to $CHART_FILE"
else
echo " chart generation skipped (no data for this machine)"
fi
# --- Phase 4: Update README.md -----------------------------------------------
echo "Updating README.md..."
node - "$JSON_OUT" "$ROOT_DIR/README.md" <<'NODE'
const fs = require("node:fs");
const [, , jsonOut, readmePath] = process.argv;
const servers = JSON.parse(fs.readFileSync(jsonOut, "utf8"));
const readme = fs.readFileSync(readmePath, "utf8");
const pg = servers["parrhesia-pg"];
const mem = servers["parrhesia-memory"];
const strfry = servers["strfry"];
const nostrRs = servers["nostr-rs-relay"];
function toFixed(v, d = 2) {
return Number.isFinite(v) ? v.toFixed(d) : "n/a";
}
function ratio(base, other) {
if (!Number.isFinite(base) || !Number.isFinite(other) || base === 0) return "n/a";
return (other / base).toFixed(2) + "x";
}
function boldIf(ratioStr, lowerIsBetter) {
if (ratioStr === "n/a") return ratioStr;
const num = parseFloat(ratioStr);
const better = lowerIsBetter ? num < 1 : num > 1;
return better ? "**" + ratioStr + "**" : ratioStr;
}
const metricRows = [
["connect avg latency (ms) \u2193", "connect_avg_ms", true],
["connect max latency (ms) \u2193", "connect_max_ms", true],
["echo throughput (TPS) \u2191", "echo_tps", false],
["echo throughput (MiB/s) \u2191", "echo_mibs", false],
["event throughput (TPS) \u2191", "event_tps", false],
["event throughput (MiB/s) \u2191", "event_mibs", false],
["req throughput (TPS) \u2191", "req_tps", false],
["req throughput (MiB/s) \u2191", "req_mibs", false],
];
const hasStrfry = !!strfry;
const hasNostrRs = !!nostrRs;
// Build header
const header = ["metric", "parrhesia-pg", "parrhesia-mem"];
if (hasStrfry) header.push("strfry");
if (hasNostrRs) header.push("nostr-rs-relay");
header.push("mem/pg");
if (hasStrfry) header.push("strfry/pg");
if (hasNostrRs) header.push("nostr-rs/pg");
const alignRow = ["---"];
for (let i = 1; i < header.length; i++) alignRow.push("---:");
const rows = metricRows.map(([label, key, lowerIsBetter]) => {
const row = [label, toFixed(pg[key]), toFixed(mem[key])];
if (hasStrfry) row.push(toFixed(strfry[key]));
if (hasNostrRs) row.push(toFixed(nostrRs[key]));
row.push(boldIf(ratio(pg[key], mem[key]), lowerIsBetter));
if (hasStrfry) row.push(boldIf(ratio(pg[key], strfry[key]), lowerIsBetter));
if (hasNostrRs) row.push(boldIf(ratio(pg[key], nostrRs[key]), lowerIsBetter));
return row;
});
const tableLines = [
"| " + header.join(" | ") + " |",
"| " + alignRow.join(" | ") + " |",
...rows.map(r => "| " + r.join(" | ") + " |"),
];
// Replace the first markdown table in the ## Benchmark section
const readmeLines = readme.split("\n");
const benchIdx = readmeLines.findIndex(l => /^## Benchmark/.test(l));
if (benchIdx === -1) {
console.error("Could not find '## Benchmark' section in README.md");
process.exit(1);
}
let tableStart = -1;
let tableEnd = -1;
for (let i = benchIdx + 1; i < readmeLines.length; i++) {
if (readmeLines[i].startsWith("|")) {
if (tableStart === -1) tableStart = i;
tableEnd = i;
} else if (tableStart !== -1) {
break;
}
}
if (tableStart === -1) {
console.error("Could not find markdown table in ## Benchmark section");
process.exit(1);
}
const before = readmeLines.slice(0, tableStart);
const after = readmeLines.slice(tableEnd + 1);
const updated = [...before, ...tableLines, ...after].join("\n");
fs.writeFileSync(readmePath, updated, "utf8");
console.log(" table updated (" + tableLines.length + " rows)");
NODE
# --- Done ---------------------------------------------------------------------
echo
echo "Benchmark update complete. Files changed:"
echo " $HISTORY_FILE"
echo " $CHART_FILE"
echo " $ROOT_DIR/README.md"
echo
echo "Review with: git diff"