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jianzhangbjzjianzhangbjz
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use prometheus instead of benchstat
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‎.github/workflows/benchmark.yaml

+190-7
Original file line numberDiff line numberDiff line change
@@ -6,7 +6,7 @@ on:
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- main
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jobs:
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benchmark:
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run-benchmark:
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runs-on: ubuntu-latest
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steps:
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- name: Checkout code
@@ -33,14 +33,197 @@ jobs:
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mkdir -p /tmp/artifacts/
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ARTIFACT_PATH=/tmp/artifacts make test-benchmark
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- name: Compare with baseline
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- name: Convert Benchmark Output to Prometheus Metrics
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run: |
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go install golang.org/x/perf/cmd/benchstat@latest
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benchstat benchmarks/baseline.txt /tmp/artifacts/new.txt | tee /tmp/artifacts/output
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mkdir -p /tmp/artifacts/prometheus/
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cat << 'EOF' > benchmark_to_prometheus.py
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import sys
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import re
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- name: Upload benchmark results
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def parse_benchmark_output(benchmark_output):
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metrics = []
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for line in benchmark_output.split("\n"):
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match = re.match(r"Benchmark([\w\d]+)-\d+\s+\d+\s+([\d]+)\s+ns/op\s+([\d]+)\s+B/op\s+([\d]+)\s+allocs/op", line)
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if match:
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benchmark_name = match.group(1).lower()
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time_ns = match.group(2)
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memory_bytes = match.group(3)
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allocs = match.group(4)
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metrics.append(f"benchmark_{benchmark_name}_ns {time_ns}")
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metrics.append(f"benchmark_{benchmark_name}_allocs {allocs}")
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metrics.append(f"benchmark_{benchmark_name}_mem_bytes {memory_bytes}")
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return "\n".join(metrics)
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if __name__ == "__main__":
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benchmark_output = sys.stdin.read()
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metrics = parse_benchmark_output(benchmark_output)
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print(metrics)
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EOF
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cat /tmp/artifacts/new.txt | python3 benchmark_to_prometheus.py > /tmp/artifacts/prometheus/metrics.txt
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# - name: Compare with baseline
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# run: |
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# go install golang.org/x/perf/cmd/benchstat@latest
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# benchstat benchmarks/baseline.txt /tmp/artifacts/new.txt | tee /tmp/artifacts/output
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- name: Upload Benchmark Metrics
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uses: actions/upload-artifact@v4
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with:
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name: benchmark-artifacts
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path: /tmp/artifacts/
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name: benchmark-metrics
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path: /tmp/artifacts/prometheus/
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run-prometheus:
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needs: run-benchmark
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runs-on: ubuntu-latest
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steps:
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- name: Checkout code
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uses: actions/checkout@v4
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with:
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fetch-depth: 0
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- name: Download Prometheus Snapshot
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uses: actions/download-artifact@v4
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with:
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name: prometheus-snapshot
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path: ${{ github.workspace }}/
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- name: Download Benchmark Metrics
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uses: actions/download-artifact@v4
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with:
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name: benchmark-metrics
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path: ./
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- name: Set Up Prometheus Config
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run: |
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cat << 'EOF' > prometheus.yml
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global:
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scrape_interval: 5s
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scrape_configs:
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- job_name: 'benchmark_metrics'
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static_configs:
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- targets: ['localhost:9000']
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EOF
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mkdir -p ${{ github.workspace }}/prometheus-data
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sudo chown -R 65534:65534 ${{ github.workspace }}/prometheus-data
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sudo chmod -R 777 ${{ github.workspace }}/prometheus-data
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- name: Extract and Restore Prometheus Snapshot
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run: |
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SNAPSHOT_FILE="${{ github.workspace }}/prometheus_snapshot.tar.gz"
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SNAPSHOT_DIR="${{ github.workspace }}/prometheus-data/snapshots"
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if [[ -f "$SNAPSHOT_FILE" ]]; then
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mkdir -p "$SNAPSHOT_DIR"
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tar -xzf "$SNAPSHOT_FILE" -C "$SNAPSHOT_DIR"
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echo "✅ Successfully extracted snapshot to: $SNAPSHOT_DIR"
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else
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echo "⚠️ WARNING: No snapshot file found. Skipping extraction."
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fi
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- name: Run Prometheus
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run: |
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docker run -d --name prometheus -p 9090:9090 \
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-v ${{ github.workspace }}/prometheus.yml:/etc/prometheus/prometheus.yml \
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-v ${{ github.workspace }}/prometheus-data:/prometheus \
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prom/prometheus --config.file=/etc/prometheus/prometheus.yml \
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--storage.tsdb.path=/prometheus \
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--storage.tsdb.retention.time=1h \
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--web.enable-admin-api \
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--storage.tsdb.load-wal
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- name: Wait for Prometheus to start
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run: sleep 10
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- name: Check Prometheus is running
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run: curl -s http://localhost:9090/-/ready || (docker logs prometheus && exit 1)
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- name: Start HTTP Server to Expose Metrics
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run: |
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cat << 'EOF' > server.py
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from http.server import SimpleHTTPRequestHandler, HTTPServer
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class MetricsHandler(SimpleHTTPRequestHandler):
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def do_GET(self):
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if self.path == "/metrics":
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self.send_response(200)
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self.send_header("Content-type", "text/plain")
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self.end_headers()
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with open("metrics.txt", "r") as f:
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self.wfile.write(f.read().encode())
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else:
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self.send_response(404)
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self.end_headers()
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if __name__ == "__main__":
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server = HTTPServer(('0.0.0.0', 9000), MetricsHandler)
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print("Serving on port 9000...")
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server.serve_forever()
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EOF
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nohup python3 server.py &
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- name: Wait for Prometheus to Collect Data
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run: sleep 30
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- name: Check Benchmark Metrics Against Threshold
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run: |
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MAX_TIME_NS=1200000000 # 1.2s
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MAX_ALLOCS=4000
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MAX_MEM_BYTES=450000
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# Query Prometheus Metrics
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time_ns=$(curl -s "http://localhost:9090/api/v1/query?query=benchmark_create_cluster_catalog_ns" | jq -r '.data.result[0].value[1]')
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allocs=$(curl -s "http://localhost:9090/api/v1/query?query=benchmark_create_cluster_catalog_allocs" | jq -r '.data.result[0].value[1]')
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mem_bytes=$(curl -s "http://localhost:9090/api/v1/query?query=benchmark_create_cluster_catalog_mem_bytes" | jq -r '.data.result[0].value[1]')
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echo "⏳ Benchmark Execution Time: $time_ns ns"
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echo "🛠️ Memory Allocations: $allocs"
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echo "💾 Memory Usage: $mem_bytes bytes"
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# threshold checking
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if (( $(echo "$time_ns > $MAX_TIME_NS" | bc -l) )); then
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echo "❌ ERROR: Execution time exceeds threshold!"
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exit 1
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fi
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if (( $(echo "$allocs > $MAX_ALLOCS" | bc -l) )); then
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echo "❌ ERROR: Too many memory allocations!"
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exit 1
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fi
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if (( $(echo "$mem_bytes > $MAX_MEM_BYTES" | bc -l) )); then
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echo "❌ ERROR: Memory usage exceeds threshold!"
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exit 1
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fi
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echo "✅ All benchmarks passed within threshold!"
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- name: Trigger Prometheus Snapshot
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run: |
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curl -X POST http://localhost:9090/api/v1/admin/tsdb/snapshot || (docker logs prometheus && exit 1)
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- name: Find and Upload Prometheus Snapshot
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run: |
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SNAPSHOT_PATH=$(ls -td ${{ github.workspace }}/prometheus-data/snapshots/* 2>/dev/null | head -1 || echo "")
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if [[ -z "$SNAPSHOT_PATH" ]]; then
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echo "❌ No Prometheus snapshot found!"
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docker logs prometheus
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exit 1
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fi
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echo "✅ Prometheus snapshot stored in: $SNAPSHOT_PATH"
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tar -czf $GITHUB_WORKSPACE/prometheus_snapshot.tar.gz -C "$SNAPSHOT_PATH" .
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- name: Stop Prometheus
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run: docker stop prometheus
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- name: Upload Prometheus Snapshot
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uses: actions/upload-artifact@v4
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with:
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name: prometheus-snapshot
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path: prometheus_snapshot.tar.gz
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