refactor(common): remove duplicated parse/compare/warmup from existing experiments

This commit is contained in:
yy-fighting 2026-07-08 10:49:27 +00:00
parent a127cf7ef0
commit f51697aed6
9 changed files with 0 additions and 1142 deletions

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#!/usr/bin/env python3
"""Generate a side-by-side comparison of SGLang and vLLM results.
Usage:
python3 compare.py --sglang <sglang_result_root> --vllm <vllm_result_root> \
[--output comparison.md]
"""
import argparse
import json
from collections import defaultdict
from pathlib import Path
def load_result(result_root: Path) -> dict:
path = result_root / "results.json"
with open(path, "r", encoding="utf-8") as f:
return json.load(f)
def slo_status(ttft_p95_ms: float, tpot_mean_ms: float) -> str:
# S2 tier targets from scripts/SLO_STANDARDS.md.
ttft_ok = ttft_p95_ms < 3000.0
tpot_ok = tpot_mean_ms < 50.0
if ttft_ok and tpot_ok:
return ""
if ttft_ok or tpot_ok:
return "⚠️"
return ""
def main():
parser = argparse.ArgumentParser()
parser.add_argument("--sglang", type=Path, required=True)
parser.add_argument("--vllm", type=Path, required=True)
parser.add_argument("-o", "--output", type=Path, default=Path("comparison.md"))
args = parser.parse_args()
sglang_data = load_result(args.sglang)
vllm_data = load_result(args.vllm)
by_scenario = defaultdict(dict)
for data in (sglang_data, vllm_data):
backend = data["metadata"]["engine"]
for s in data.get("scenarios", []):
key = s["name"]
by_scenario[key][backend] = s
with open(args.output, "w", encoding="utf-8") as f:
f.write("# SGLang vs vLLM on DeepSeek-V4-Flash (H200, TP=8)\n\n")
f.write("## Summary\n\n")
f.write("- Model: `/data/models/DeepSeek-V4-Flash`\n")
f.write("- Hardware: 8x NVIDIA H200 143GB\n")
f.write("- Tensor Parallelism: 8\n")
f.write("- Benchmark client: `sglang.bench_serving`\n")
f.write("- SLO reference: S2 tier (TTFT P95 < 3s, TPOT < 50ms)\n\n")
f.write("## Side-by-side results\n\n")
f.write("| Scenario | Backend | Conc | Input | Output | Req/s | OutTok/s | TTFT P95(ms) | TTFT P99(ms) | TPOT Mean(ms) | TPOT P95(ms) | TPOT P99(ms) | E2E P99(ms) | SLO |\n")
f.write("|---|---|---:|---:|---:|---:|---:|---:|---:|---:|---:|---:|---:|---:|\n")
for scenario_name in sorted(by_scenario.keys()):
for backend in ("sglang", "vllm"):
s = by_scenario[scenario_name].get(backend)
if s is None:
continue
cfg = s["config"]
m = s["metrics"]
status = slo_status(m["ttft_ms"]["p95"], m["tpot_ms"]["mean"])
f.write(
f"| {scenario_name} | {backend} | {cfg['concurrency']} | {cfg['input_len']} | {cfg['output_len']} | "
f"{m['request_throughput']:.2f} | {m['output_token_throughput']:.2f} | "
f"{m['ttft_ms']['p95']:.2f} | {m['ttft_ms']['p99']:.2f} | "
f"{m['tpot_ms']['mean']:.2f} | {m['tpot_ms']['p95']:.2f} | {m['tpot_ms']['p99']:.2f} | "
f"{m['e2e_ms']['p99']:.2f} | {status} |\n"
)
f.write("\n## Notes\n\n")
f.write("- SLO check uses TTFT P95 and TPOT mean (the same criteria as `scripts/SLO_STANDARDS.md`).\n")
f.write("- A ⚠️ indicates one of the two metrics is out of target; ❌ indicates both are out.\n")
print(f"Wrote comparison to {args.output}")
if __name__ == "__main__":
main()

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#!/usr/bin/env python3
"""Parse raw sglang.bench_serving JSONL outputs for one backend.
Reads JSONL files like {sglang|vllm}_phase1_MMDD_concurrency_inputlen_outputlen.jsonl
and generates results.json + report.md in the given result root.
Usage:
python3 parse_backend.py <result_root> [--backend sglang|vllm]
"""
import argparse
import json
import re
import sys
from pathlib import Path
def parse_jsonl(path: Path) -> dict | None:
with open(path, "r", encoding="utf-8") as f:
for line in f:
line = line.strip()
if not line:
continue
try:
return json.loads(line)
except json.JSONDecodeError:
continue
return None
def compute_metrics(data: dict) -> dict:
completed = data.get("completed", 0)
total = len(data.get("input_lens", []))
failed = total - completed if total > 0 else 0
duration_s = data.get("duration", 0.0)
return {
"success": completed,
"failed": failed,
"duration_s": duration_s,
"request_throughput": data.get("request_throughput", 0.0),
"input_token_throughput": data.get("input_throughput", 0.0),
"output_token_throughput": data.get("output_throughput", 0.0),
"total_token_throughput": data.get("total_throughput", 0.0),
"total_input_tokens": data.get("total_input_tokens", 0),
"total_output_tokens": data.get("total_output_tokens", 0),
"e2e_ms": {
"mean": data.get("mean_e2e_latency_ms", 0.0),
"p50": data.get("median_e2e_latency_ms", 0.0),
"p90": data.get("p90_e2e_latency_ms", 0.0),
"p95": data.get("p95_e2e_latency_ms", 0.0),
"p99": data.get("p99_e2e_latency_ms", 0.0),
},
"ttft_ms": {
"mean": data.get("mean_ttft_ms", 0.0),
"p50": data.get("median_ttft_ms", 0.0),
"p90": data.get("p90_ttft_ms", 0.0),
"p95": data.get("p95_ttft_ms", 0.0),
"p99": data.get("p99_ttft_ms", 0.0),
},
"tpot_ms": {
"mean": data.get("mean_tpot_ms", 0.0),
"p50": data.get("median_tpot_ms", 0.0),
"p90": data.get("p90_tpot_ms", 0.0),
"p95": data.get("p95_tpot_ms", 0.0),
"p99": data.get("p99_tpot_ms", 0.0),
},
"itl_ms": {
"mean": data.get("mean_itl_ms", 0.0),
"p50": data.get("median_itl_ms", 0.0),
"p90": data.get("p90_itl_ms", 0.0),
"p95": data.get("p95_itl_ms", 0.0),
"p99": data.get("p99_itl_ms", 0.0),
},
}
def scenario_name(concurrency: int, input_len: int, output_len: int) -> str:
return f"c{concurrency}_i{input_len}_o{output_len}"
def slo_status(metrics: dict) -> dict:
"""Check S2-tier SLO: TTFT P95 < 3s, TPOT mean < 50ms."""
ttft_ok = metrics["ttft_ms"]["p95"] < 3000.0
tpot_ok = metrics["tpot_ms"]["mean"] < 50.0
if ttft_ok and tpot_ok:
mark = ""
elif ttft_ok or tpot_ok:
mark = "⚠️"
else:
mark = ""
return {
"ttft_p95_ok": ttft_ok,
"tpot_mean_ok": tpot_ok,
"overall": mark,
}
def append_scenario(results_json: Path, scenario: dict) -> None:
with open(results_json, "r", encoding="utf-8") as f:
data = json.load(f)
data["scenarios"].append(scenario)
with open(results_json, "w", encoding="utf-8") as f:
json.dump(data, f, indent=2, ensure_ascii=False)
def generate_report(result_root: Path, backend: str, scenarios: list[dict]) -> None:
report_path = result_root / "report.md"
with open(report_path, "w", encoding="utf-8") as f:
f.write(f"# H200 {backend.upper()} Comparison Benchmark Report\n\n")
f.write(f"- Result root: `{result_root}`\n")
f.write(f"- Model: `/data/models/DeepSeek-V4-Flash`\n")
f.write(f"- Backend: {backend.upper()} (TP=8)\n")
f.write(f"- Benchmark client: `sglang.bench_serving --backend {backend}`\n\n")
f.write("## Results\n\n")
f.write("| Scenario | Phase | Concurrency | Input | Output | Duration(s) | Success | Req/s | In tok/s | Out tok/s | Total tok/s | Mean TTFT(ms) | P95 TTFT(ms) | P99 TTFT(ms) | Mean TPOT(ms) | P95 TPOT(ms) | P99 TPOT(ms) | Mean E2E(ms) | P95 E2E(ms) | P99 E2E(ms) | SLO |\n")
f.write("|---|---:|---:|---:|---:|---:|---:|---:|---:|---:|---:|---:|---:|---:|---:|---:|---:|---:|---:|---:|---:|\n")
for s in scenarios:
cfg = s["config"]
m = s["metrics"]
slo = s.get("slo_status", {}).get("overall", "")
f.write(
f"| {s['name']} | {cfg['phase']} | {cfg['concurrency']} | {cfg['input_len']} | {cfg['output_len']} | "
f"{m['duration_s']:.2f} | {m['success']} | {m['request_throughput']:.2f} | "
f"{m['input_token_throughput']:.2f} | {m['output_token_throughput']:.2f} | "
f"{m['total_token_throughput']:.2f} | "
f"{m['ttft_ms']['mean']:.2f} | {m['ttft_ms']['p95']:.2f} | {m['ttft_ms']['p99']:.2f} | "
f"{m['tpot_ms']['mean']:.2f} | {m['tpot_ms']['p95']:.2f} | {m['tpot_ms']['p99']:.2f} | "
f"{m['e2e_ms']['mean']:.2f} | {m['e2e_ms']['p95']:.2f} | {m['e2e_ms']['p99']:.2f} | {slo} |\n"
)
f.write("\n")
f.write("SLO: S2 tier — TTFT P95 < 3000ms, TPOT mean < 50ms. ✅ pass, ⚠️ partial, ❌ fail.\n\n")
def main() -> None:
parser = argparse.ArgumentParser()
parser.add_argument("result_root", type=Path)
parser.add_argument("--backend", default=None, choices=["sglang", "vllm"])
args = parser.parse_args()
result_root = args.result_root
raw_dir = result_root / "raw_outputs"
results_json = result_root / "results.json"
if not raw_dir.exists():
raise SystemExit(f"raw_outputs directory not found: {raw_dir}")
backend = args.backend
if backend is None:
# Infer from filenames if not provided.
for p in raw_dir.iterdir():
if p.name.startswith("sglang_"):
backend = "sglang"
break
if p.name.startswith("vllm_"):
backend = "vllm"
break
if backend is None:
raise SystemExit("Could not infer backend from raw outputs")
scenarios = []
for jsonl_path in sorted(raw_dir.glob(f"{backend}_*.jsonl")):
parts = jsonl_path.stem.split("_")
if len(parts) < 5:
continue
label = parts[1]
if label == "sharegpt":
phase = "sharegpt"
dataset = "sharegpt"
else:
phase = label
dataset = "random"
# The last three numeric tokens are: concurrency, input_len/output_ctx, output_len.
try:
concurrency, input_len, output_len = int(parts[-3]), int(parts[-2]), int(parts[-1])
except ValueError:
continue
data = parse_jsonl(jsonl_path)
if data is None:
continue
metrics = compute_metrics(data)
scenario = {
"name": scenario_name(concurrency, input_len, output_len),
"config": {
"phase": phase,
"concurrency": concurrency,
"input_len": input_len,
"output_len": output_len,
"dataset": dataset,
"num_prompts": metrics["success"] + metrics["failed"],
},
"metrics": metrics,
"slo_status": slo_status(metrics),
"raw_file": str(jsonl_path),
}
scenarios.append(scenario)
if not scenarios:
print("No benchmark outputs found to parse")
return
if results_json.exists():
with open(results_json, "r", encoding="utf-8") as f:
data = json.load(f)
data["scenarios"] = scenarios
with open(results_json, "w", encoding="utf-8") as f:
json.dump(data, f, indent=2, ensure_ascii=False)
generate_report(result_root, backend, scenarios)
print(f"Parsed {len(scenarios)} scenarios into {result_root}/report.md")
if __name__ == "__main__":
main()

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#!/usr/bin/env python3
"""Send a small number of warmup requests to a running backend.
Uses sglang.bench_serving with a single request so that the same code path
(prefill / decode kernels, CUDA graphs, etc.) is exercised before the real
benchmark begins. Discards the output.
"""
import argparse
import subprocess
import sys
import tempfile
from pathlib import Path
def run_warmup(backend: str, host: str, port: int, input_len: int, output_len: int, num: int, env_python: Path) -> None:
with tempfile.NamedTemporaryFile(mode="w", suffix=".jsonl", delete=True) as tmp:
cmd = [
str(env_python),
"-m",
"sglang.bench_serving",
"--backend",
backend,
"--host",
host,
"--port",
str(port),
"--dataset-name",
"random",
"--random-input-len",
str(input_len),
"--random-output-len",
str(output_len),
"--num-prompts",
str(num),
"--max-concurrency",
"1",
"--request-rate",
"10000",
"--output-file",
tmp.name,
"--output-details",
]
print(f"[warmup] {' '.join(cmd)}", flush=True)
result = subprocess.run(cmd, capture_output=True, text=True)
if result.returncode != 0:
print("[warmup] FAILED", file=sys.stderr)
print(result.stdout, file=sys.stderr)
print(result.stderr, file=sys.stderr)
sys.exit(1)
print(f"[warmup] OK: backend={backend} port={port} input={input_len} output={output_len} num={num}")
def main():
parser = argparse.ArgumentParser(description="Warmup a serving backend.")
parser.add_argument("--backend", required=True, choices=["sglang", "vllm"])
parser.add_argument("--port", type=int, required=True)
parser.add_argument("--input-len", type=int, required=True)
parser.add_argument("--output-len", type=int, required=True)
parser.add_argument("--num", type=int, default=1)
parser.add_argument("--host", default="127.0.0.1")
parser.add_argument("--env-python", default="/data/user1/yy/envs/sglang/bin/python")
args = parser.parse_args()
run_warmup(
backend=args.backend,
host=args.host,
port=args.port,
input_len=args.input_len,
output_len=args.output_len,
num=args.num,
env_python=Path(args.env_python),
)
if __name__ == "__main__":
main()

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#!/usr/bin/env python3
"""Generate a side-by-side comparison of SGLang and vLLM results.
Usage:
python3 compare.py --sglang <sglang_result_root> --vllm <vllm_result_root> \
[--output comparison.md]
"""
import argparse
import json
from collections import defaultdict
from pathlib import Path
def load_result(result_root: Path) -> dict:
path = result_root / "results.json"
with open(path, "r", encoding="utf-8") as f:
return json.load(f)
def slo_status(ttft_p95_ms: float, tpot_mean_ms: float) -> str:
# S2 tier targets from scripts/SLO_STANDARDS.md.
ttft_ok = ttft_p95_ms < 3000.0
tpot_ok = tpot_mean_ms < 50.0
if ttft_ok and tpot_ok:
return ""
if ttft_ok or tpot_ok:
return "⚠️"
return ""
def main():
parser = argparse.ArgumentParser()
parser.add_argument("--sglang", type=Path, required=True)
parser.add_argument("--vllm", type=Path, required=True)
parser.add_argument("-o", "--output", type=Path, default=Path("comparison.md"))
args = parser.parse_args()
sglang_data = load_result(args.sglang)
vllm_data = load_result(args.vllm)
by_scenario = defaultdict(dict)
for data in (sglang_data, vllm_data):
backend = data["metadata"]["engine"]
for s in data.get("scenarios", []):
key = s["name"]
by_scenario[key][backend] = s
with open(args.output, "w", encoding="utf-8") as f:
f.write("# SGLang vs vLLM on DeepSeek-V4-Flash (H200, TP=8)\n\n")
f.write("## Summary\n\n")
f.write("- Model: `/data/models/DeepSeek-V4-Flash`\n")
f.write("- Hardware: 8x NVIDIA H200 143GB\n")
f.write("- Tensor Parallelism: 8\n")
f.write("- Benchmark client: `sglang.bench_serving`\n")
f.write("- SLO reference: S2 tier (TTFT P95 < 3s, TPOT < 50ms)\n\n")
f.write("## Side-by-side results\n\n")
f.write("| Scenario | Backend | Conc | Input | Output | Req/s | OutTok/s | TTFT P95(ms) | TTFT P99(ms) | TPOT Mean(ms) | TPOT P95(ms) | TPOT P99(ms) | E2E P99(ms) | SLO |\n")
f.write("|---|---|---:|---:|---:|---:|---:|---:|---:|---:|---:|---:|---:|---:|\n")
for scenario_name in sorted(by_scenario.keys()):
for backend in ("sglang", "vllm"):
s = by_scenario[scenario_name].get(backend)
if s is None:
continue
cfg = s["config"]
m = s["metrics"]
status = slo_status(m["ttft_ms"]["p95"], m["tpot_ms"]["mean"])
f.write(
f"| {scenario_name} | {backend} | {cfg['concurrency']} | {cfg['input_len']} | {cfg['output_len']} | "
f"{m['request_throughput']:.2f} | {m['output_token_throughput']:.2f} | "
f"{m['ttft_ms']['p95']:.2f} | {m['ttft_ms']['p99']:.2f} | "
f"{m['tpot_ms']['mean']:.2f} | {m['tpot_ms']['p95']:.2f} | {m['tpot_ms']['p99']:.2f} | "
f"{m['e2e_ms']['p99']:.2f} | {status} |\n"
)
f.write("\n## Notes\n\n")
f.write("- SLO check uses TTFT P95 and TPOT mean (the same criteria as `scripts/SLO_STANDARDS.md`).\n")
f.write("- A ⚠️ indicates one of the two metrics is out of target; ❌ indicates both are out.\n")
print(f"Wrote comparison to {args.output}")
if __name__ == "__main__":
main()

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#!/usr/bin/env python3
"""Parse raw sglang.bench_serving JSONL outputs for one backend.
Reads JSONL files like {sglang|vllm}_phase1_MMDD_concurrency_inputlen_outputlen.jsonl
and generates results.json + report.md in the given result root.
Usage:
python3 parse_backend.py <result_root> [--backend sglang|vllm]
"""
import argparse
import json
import re
import sys
from pathlib import Path
def parse_jsonl(path: Path) -> dict | None:
with open(path, "r", encoding="utf-8") as f:
for line in f:
line = line.strip()
if not line:
continue
try:
return json.loads(line)
except json.JSONDecodeError:
continue
return None
def compute_metrics(data: dict) -> dict:
completed = data.get("completed", 0)
total = len(data.get("input_lens", []))
failed = total - completed if total > 0 else 0
duration_s = data.get("duration", 0.0)
return {
"success": completed,
"failed": failed,
"duration_s": duration_s,
"request_throughput": data.get("request_throughput", 0.0),
"input_token_throughput": data.get("input_throughput", 0.0),
"output_token_throughput": data.get("output_throughput", 0.0),
"total_token_throughput": data.get("total_throughput", 0.0),
"total_input_tokens": data.get("total_input_tokens", 0),
"total_output_tokens": data.get("total_output_tokens", 0),
"e2e_ms": {
"mean": data.get("mean_e2e_latency_ms", 0.0),
"p50": data.get("median_e2e_latency_ms", 0.0),
"p90": data.get("p90_e2e_latency_ms", 0.0),
"p95": data.get("p95_e2e_latency_ms", 0.0),
"p99": data.get("p99_e2e_latency_ms", 0.0),
},
"ttft_ms": {
"mean": data.get("mean_ttft_ms", 0.0),
"p50": data.get("median_ttft_ms", 0.0),
"p90": data.get("p90_ttft_ms", 0.0),
"p95": data.get("p95_ttft_ms", 0.0),
"p99": data.get("p99_ttft_ms", 0.0),
},
"tpot_ms": {
"mean": data.get("mean_tpot_ms", 0.0),
"p50": data.get("median_tpot_ms", 0.0),
"p90": data.get("p90_tpot_ms", 0.0),
"p95": data.get("p95_tpot_ms", 0.0),
"p99": data.get("p99_tpot_ms", 0.0),
},
"itl_ms": {
"mean": data.get("mean_itl_ms", 0.0),
"p50": data.get("median_itl_ms", 0.0),
"p90": data.get("p90_itl_ms", 0.0),
"p95": data.get("p95_itl_ms", 0.0),
"p99": data.get("p99_itl_ms", 0.0),
},
}
def scenario_name(concurrency: int, input_len: int, output_len: int) -> str:
return f"c{concurrency}_i{input_len}_o{output_len}"
def slo_status(metrics: dict) -> dict:
"""Check S2-tier SLO: TTFT P95 < 3s, TPOT mean < 50ms."""
ttft_ok = metrics["ttft_ms"]["p95"] < 3000.0
tpot_ok = metrics["tpot_ms"]["mean"] < 50.0
if ttft_ok and tpot_ok:
mark = ""
elif ttft_ok or tpot_ok:
mark = "⚠️"
else:
mark = ""
return {
"ttft_p95_ok": ttft_ok,
"tpot_mean_ok": tpot_ok,
"overall": mark,
}
def append_scenario(results_json: Path, scenario: dict) -> None:
with open(results_json, "r", encoding="utf-8") as f:
data = json.load(f)
data["scenarios"].append(scenario)
with open(results_json, "w", encoding="utf-8") as f:
json.dump(data, f, indent=2, ensure_ascii=False)
def generate_report(result_root: Path, backend: str, scenarios: list[dict]) -> None:
report_path = result_root / "report.md"
with open(report_path, "w", encoding="utf-8") as f:
f.write(f"# H200 {backend.upper()} Comparison Benchmark Report\n\n")
f.write(f"- Result root: `{result_root}`\n")
f.write(f"- Model: `/data/models/DeepSeek-V4-Flash`\n")
f.write(f"- Backend: {backend.upper()} (TP=8)\n")
f.write(f"- Benchmark client: `sglang.bench_serving --backend {backend}`\n\n")
f.write("## Results\n\n")
f.write("| Scenario | Phase | Concurrency | Input | Output | Duration(s) | Success | Req/s | In tok/s | Out tok/s | Total tok/s | Mean TTFT(ms) | P95 TTFT(ms) | P99 TTFT(ms) | Mean TPOT(ms) | P95 TPOT(ms) | P99 TPOT(ms) | Mean E2E(ms) | P95 E2E(ms) | P99 E2E(ms) | SLO |\n")
f.write("|---|---:|---:|---:|---:|---:|---:|---:|---:|---:|---:|---:|---:|---:|---:|---:|---:|---:|---:|---:|---:|\n")
for s in scenarios:
cfg = s["config"]
m = s["metrics"]
slo = s.get("slo_status", {}).get("overall", "")
f.write(
f"| {s['name']} | {cfg['phase']} | {cfg['concurrency']} | {cfg['input_len']} | {cfg['output_len']} | "
f"{m['duration_s']:.2f} | {m['success']} | {m['request_throughput']:.2f} | "
f"{m['input_token_throughput']:.2f} | {m['output_token_throughput']:.2f} | "
f"{m['total_token_throughput']:.2f} | "
f"{m['ttft_ms']['mean']:.2f} | {m['ttft_ms']['p95']:.2f} | {m['ttft_ms']['p99']:.2f} | "
f"{m['tpot_ms']['mean']:.2f} | {m['tpot_ms']['p95']:.2f} | {m['tpot_ms']['p99']:.2f} | "
f"{m['e2e_ms']['mean']:.2f} | {m['e2e_ms']['p95']:.2f} | {m['e2e_ms']['p99']:.2f} | {slo} |\n"
)
f.write("\n")
f.write("SLO: S2 tier — TTFT P95 < 3000ms, TPOT mean < 50ms. ✅ pass, ⚠️ partial, ❌ fail.\n\n")
def main() -> None:
parser = argparse.ArgumentParser()
parser.add_argument("result_root", type=Path)
parser.add_argument("--backend", default=None, choices=["sglang", "vllm"])
args = parser.parse_args()
result_root = args.result_root
raw_dir = result_root / "raw_outputs"
results_json = result_root / "results.json"
if not raw_dir.exists():
raise SystemExit(f"raw_outputs directory not found: {raw_dir}")
backend = args.backend
if backend is None:
# Infer from filenames if not provided.
for p in raw_dir.iterdir():
if p.name.startswith("sglang_"):
backend = "sglang"
break
if p.name.startswith("vllm_"):
backend = "vllm"
break
if backend is None:
raise SystemExit("Could not infer backend from raw outputs")
scenarios = []
for jsonl_path in sorted(raw_dir.glob(f"{backend}_*.jsonl")):
parts = jsonl_path.stem.split("_")
if len(parts) < 5:
continue
label = parts[1]
if label == "sharegpt":
phase = "sharegpt"
dataset = "sharegpt"
else:
phase = label
dataset = "random"
# The last three numeric tokens are: concurrency, input_len/output_ctx, output_len.
try:
concurrency, input_len, output_len = int(parts[-3]), int(parts[-2]), int(parts[-1])
except ValueError:
continue
data = parse_jsonl(jsonl_path)
if data is None:
continue
metrics = compute_metrics(data)
scenario = {
"name": scenario_name(concurrency, input_len, output_len),
"config": {
"phase": phase,
"concurrency": concurrency,
"input_len": input_len,
"output_len": output_len,
"dataset": dataset,
"num_prompts": metrics["success"] + metrics["failed"],
},
"metrics": metrics,
"slo_status": slo_status(metrics),
"raw_file": str(jsonl_path),
}
scenarios.append(scenario)
if not scenarios:
print("No benchmark outputs found to parse")
return
if results_json.exists():
with open(results_json, "r", encoding="utf-8") as f:
data = json.load(f)
data["scenarios"] = scenarios
with open(results_json, "w", encoding="utf-8") as f:
json.dump(data, f, indent=2, ensure_ascii=False)
generate_report(result_root, backend, scenarios)
print(f"Parsed {len(scenarios)} scenarios into {result_root}/report.md")
if __name__ == "__main__":
main()

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@ -1,76 +0,0 @@
#!/usr/bin/env python3
"""Send a small number of warmup requests to a running backend.
Uses sglang.bench_serving with a single request so that the same code path
(prefill / decode kernels, CUDA graphs, etc.) is exercised before the real
benchmark begins. Discards the output.
"""
import argparse
import subprocess
import sys
import tempfile
from pathlib import Path
def run_warmup(backend: str, host: str, port: int, input_len: int, output_len: int, num: int, env_python: Path) -> None:
with tempfile.NamedTemporaryFile(mode="w", suffix=".jsonl", delete=True) as tmp:
cmd = [
str(env_python),
"-m",
"sglang.bench_serving",
"--backend",
backend,
"--host",
host,
"--port",
str(port),
"--dataset-name",
"random",
"--random-input-len",
str(input_len),
"--random-output-len",
str(output_len),
"--num-prompts",
str(num),
"--max-concurrency",
"1",
"--request-rate",
"10000",
"--output-file",
tmp.name,
"--output-details",
]
print(f"[warmup] {' '.join(cmd)}", flush=True)
result = subprocess.run(cmd, capture_output=True, text=True)
if result.returncode != 0:
print("[warmup] FAILED", file=sys.stderr)
print(result.stdout, file=sys.stderr)
print(result.stderr, file=sys.stderr)
sys.exit(1)
print(f"[warmup] OK: backend={backend} port={port} input={input_len} output={output_len} num={num}")
def main():
parser = argparse.ArgumentParser(description="Warmup a serving backend.")
parser.add_argument("--backend", required=True, choices=["sglang", "vllm"])
parser.add_argument("--port", type=int, required=True)
parser.add_argument("--input-len", type=int, required=True)
parser.add_argument("--output-len", type=int, required=True)
parser.add_argument("--num", type=int, default=1)
parser.add_argument("--host", default="127.0.0.1")
parser.add_argument("--env-python", default="/data/user1/yy/envs/sglang/bin/python")
args = parser.parse_args()
run_warmup(
backend=args.backend,
host=args.host,
port=args.port,
input_len=args.input_len,
output_len=args.output_len,
num=args.num,
env_python=Path(args.env_python),
)
if __name__ == "__main__":
main()

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@ -1,85 +0,0 @@
#!/usr/bin/env python3
"""Generate a side-by-side comparison of SGLang and vLLM results.
Usage:
python3 compare.py --sglang <sglang_result_root> --vllm <vllm_result_root> \
[--output comparison.md]
"""
import argparse
import json
from collections import defaultdict
from pathlib import Path
def load_result(result_root: Path) -> dict:
path = result_root / "results.json"
with open(path, "r", encoding="utf-8") as f:
return json.load(f)
def slo_status(ttft_p95_ms: float, tpot_mean_ms: float) -> str:
# S2 tier targets from scripts/SLO_STANDARDS.md.
ttft_ok = ttft_p95_ms < 3000.0
tpot_ok = tpot_mean_ms < 50.0
if ttft_ok and tpot_ok:
return ""
if ttft_ok or tpot_ok:
return "⚠️"
return ""
def main():
parser = argparse.ArgumentParser()
parser.add_argument("--sglang", type=Path, required=True)
parser.add_argument("--vllm", type=Path, required=True)
parser.add_argument("-o", "--output", type=Path, default=Path("comparison.md"))
args = parser.parse_args()
sglang_data = load_result(args.sglang)
vllm_data = load_result(args.vllm)
by_scenario = defaultdict(dict)
for data in (sglang_data, vllm_data):
backend = data["metadata"]["engine"]
for s in data.get("scenarios", []):
key = s["name"]
by_scenario[key][backend] = s
with open(args.output, "w", encoding="utf-8") as f:
f.write("# SGLang vs vLLM on DeepSeek-V4-Flash (H200, TP=8)\n\n")
f.write("## Summary\n\n")
f.write("- Model: `/data/models/DeepSeek-V4-Flash`\n")
f.write("- Hardware: 8x NVIDIA H200 143GB\n")
f.write("- Tensor Parallelism: 8\n")
f.write("- Benchmark client: `sglang.bench_serving`\n")
f.write("- SLO reference: S2 tier (TTFT P95 < 3s, TPOT < 50ms)\n\n")
f.write("## Side-by-side results\n\n")
f.write("| Scenario | Backend | Conc | Input | Output | Req/s | OutTok/s | TTFT P95(ms) | TTFT P99(ms) | TPOT Mean(ms) | TPOT P95(ms) | TPOT P99(ms) | E2E P99(ms) | SLO |\n")
f.write("|---|---|---:|---:|---:|---:|---:|---:|---:|---:|---:|---:|---:|---:|\n")
for scenario_name in sorted(by_scenario.keys()):
for backend in ("sglang", "vllm"):
s = by_scenario[scenario_name].get(backend)
if s is None:
continue
cfg = s["config"]
m = s["metrics"]
status = slo_status(m["ttft_ms"]["p95"], m["tpot_ms"]["mean"])
f.write(
f"| {scenario_name} | {backend} | {cfg['concurrency']} | {cfg['input_len']} | {cfg['output_len']} | "
f"{m['request_throughput']:.2f} | {m['output_token_throughput']:.2f} | "
f"{m['ttft_ms']['p95']:.2f} | {m['ttft_ms']['p99']:.2f} | "
f"{m['tpot_ms']['mean']:.2f} | {m['tpot_ms']['p95']:.2f} | {m['tpot_ms']['p99']:.2f} | "
f"{m['e2e_ms']['p99']:.2f} | {status} |\n"
)
f.write("\n## Notes\n\n")
f.write("- SLO check uses TTFT P95 and TPOT mean (the same criteria as `scripts/SLO_STANDARDS.md`).\n")
f.write("- A ⚠️ indicates one of the two metrics is out of target; ❌ indicates both are out.\n")
print(f"Wrote comparison to {args.output}")
if __name__ == "__main__":
main()

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@ -1,221 +0,0 @@
#!/usr/bin/env python3
"""Parse raw sglang.bench_serving JSONL outputs for one backend.
Reads JSONL files like {sglang|vllm}_phase1_MMDD_concurrency_inputlen_outputlen.jsonl
and generates results.json + report.md in the given result root.
Usage:
python3 parse_backend.py <result_root> [--backend sglang|vllm]
"""
import argparse
import json
import re
import sys
from pathlib import Path
def parse_jsonl(path: Path) -> dict | None:
with open(path, "r", encoding="utf-8") as f:
for line in f:
line = line.strip()
if not line:
continue
try:
return json.loads(line)
except json.JSONDecodeError:
continue
return None
def compute_metrics(data: dict) -> dict:
completed = data.get("completed", 0)
total = len(data.get("input_lens", []))
failed = total - completed if total > 0 else 0
duration_s = data.get("duration", 0.0)
return {
"success": completed,
"failed": failed,
"duration_s": duration_s,
"request_throughput": data.get("request_throughput", 0.0),
"input_token_throughput": data.get("input_throughput", 0.0),
"output_token_throughput": data.get("output_throughput", 0.0),
"total_token_throughput": data.get("total_throughput", 0.0),
"total_input_tokens": data.get("total_input_tokens", 0),
"total_output_tokens": data.get("total_output_tokens", 0),
"e2e_ms": {
"mean": data.get("mean_e2e_latency_ms", 0.0),
"p50": data.get("median_e2e_latency_ms", 0.0),
"p90": data.get("p90_e2e_latency_ms", 0.0),
"p95": data.get("p95_e2e_latency_ms", 0.0),
"p99": data.get("p99_e2e_latency_ms", 0.0),
},
"ttft_ms": {
"mean": data.get("mean_ttft_ms", 0.0),
"p50": data.get("median_ttft_ms", 0.0),
"p90": data.get("p90_ttft_ms", 0.0),
"p95": data.get("p95_ttft_ms", 0.0),
"p99": data.get("p99_ttft_ms", 0.0),
},
"tpot_ms": {
"mean": data.get("mean_tpot_ms", 0.0),
"p50": data.get("median_tpot_ms", 0.0),
"p90": data.get("p90_tpot_ms", 0.0),
"p95": data.get("p95_tpot_ms", 0.0),
"p99": data.get("p99_tpot_ms", 0.0),
},
"itl_ms": {
"mean": data.get("mean_itl_ms", 0.0),
"p50": data.get("median_itl_ms", 0.0),
"p90": data.get("p90_itl_ms", 0.0),
"p95": data.get("p95_itl_ms", 0.0),
"p99": data.get("p99_itl_ms", 0.0),
},
}
def scenario_name(concurrency: int, input_len: int, output_len: int) -> str:
return f"c{concurrency}_i{input_len}_o{output_len}"
def slo_status(metrics: dict) -> dict:
"""Check S2-tier SLO: TTFT P95 < 3s, TPOT mean < 50ms."""
ttft_ok = metrics["ttft_ms"]["p95"] < 3000.0
tpot_ok = metrics["tpot_ms"]["mean"] < 50.0
if ttft_ok and tpot_ok:
mark = ""
elif ttft_ok or tpot_ok:
mark = "⚠️"
else:
mark = ""
return {
"ttft_p95_ok": ttft_ok,
"tpot_mean_ok": tpot_ok,
"overall": mark,
}
def append_scenario(results_json: Path, scenario: dict) -> None:
with open(results_json, "r", encoding="utf-8") as f:
data = json.load(f)
data["scenarios"].append(scenario)
with open(results_json, "w", encoding="utf-8") as f:
json.dump(data, f, indent=2, ensure_ascii=False)
def generate_report(result_root: Path, backend: str, scenarios: list[dict]) -> None:
report_path = result_root / "report.md"
with open(report_path, "w", encoding="utf-8") as f:
f.write(f"# H200 {backend.upper()} Comparison Benchmark Report\n\n")
f.write(f"- Result root: `{result_root}`\n")
f.write(f"- Model: `/data/models/DeepSeek-V4-Flash`\n")
f.write(f"- Backend: {backend.upper()} (TP=8)\n")
f.write(f"- Benchmark client: `sglang.bench_serving --backend {backend}`\n\n")
f.write("## Results\n\n")
f.write("| Scenario | Phase | Concurrency | Input | Output | Duration(s) | Success | Req/s | In tok/s | Out tok/s | Total tok/s | Mean TTFT(ms) | P95 TTFT(ms) | P99 TTFT(ms) | Mean TPOT(ms) | P95 TPOT(ms) | P99 TPOT(ms) | Mean E2E(ms) | P95 E2E(ms) | P99 E2E(ms) | SLO |\n")
f.write("|---|---:|---:|---:|---:|---:|---:|---:|---:|---:|---:|---:|---:|---:|---:|---:|---:|---:|---:|---:|---:|\n")
for s in scenarios:
cfg = s["config"]
m = s["metrics"]
slo = s.get("slo_status", {}).get("overall", "")
f.write(
f"| {s['name']} | {cfg['phase']} | {cfg['concurrency']} | {cfg['input_len']} | {cfg['output_len']} | "
f"{m['duration_s']:.2f} | {m['success']} | {m['request_throughput']:.2f} | "
f"{m['input_token_throughput']:.2f} | {m['output_token_throughput']:.2f} | "
f"{m['total_token_throughput']:.2f} | "
f"{m['ttft_ms']['mean']:.2f} | {m['ttft_ms']['p95']:.2f} | {m['ttft_ms']['p99']:.2f} | "
f"{m['tpot_ms']['mean']:.2f} | {m['tpot_ms']['p95']:.2f} | {m['tpot_ms']['p99']:.2f} | "
f"{m['e2e_ms']['mean']:.2f} | {m['e2e_ms']['p95']:.2f} | {m['e2e_ms']['p99']:.2f} | {slo} |\n"
)
f.write("\n")
f.write("SLO: S2 tier — TTFT P95 < 3000ms, TPOT mean < 50ms. ✅ pass, ⚠️ partial, ❌ fail.\n\n")
def main() -> None:
parser = argparse.ArgumentParser()
parser.add_argument("result_root", type=Path)
parser.add_argument("--backend", default=None, choices=["sglang", "vllm"])
args = parser.parse_args()
result_root = args.result_root
raw_dir = result_root / "raw_outputs"
results_json = result_root / "results.json"
if not raw_dir.exists():
raise SystemExit(f"raw_outputs directory not found: {raw_dir}")
backend = args.backend
if backend is None:
# Infer from filenames if not provided.
for p in raw_dir.iterdir():
if p.name.startswith("sglang_"):
backend = "sglang"
break
if p.name.startswith("vllm_"):
backend = "vllm"
break
if backend is None:
raise SystemExit("Could not infer backend from raw outputs")
scenarios = []
for jsonl_path in sorted(raw_dir.glob(f"{backend}_*.jsonl")):
parts = jsonl_path.stem.split("_")
if len(parts) < 5:
continue
label = parts[1]
if label.startswith("phase"):
phase = label
dataset = "random"
elif label == "sharegpt":
phase = "sharegpt"
dataset = "sharegpt"
else:
continue
# The last three numeric tokens are: concurrency, input_len/output_ctx, output_len.
try:
concurrency, input_len, output_len = int(parts[-3]), int(parts[-2]), int(parts[-1])
except ValueError:
continue
data = parse_jsonl(jsonl_path)
if data is None:
continue
metrics = compute_metrics(data)
scenario = {
"name": scenario_name(concurrency, input_len, output_len),
"config": {
"phase": phase,
"concurrency": concurrency,
"input_len": input_len,
"output_len": output_len,
"dataset": dataset,
"num_prompts": metrics["success"] + metrics["failed"],
},
"metrics": metrics,
"slo_status": slo_status(metrics),
"raw_file": str(jsonl_path),
}
scenarios.append(scenario)
if not scenarios:
print("No benchmark outputs found to parse")
return
if results_json.exists():
with open(results_json, "r", encoding="utf-8") as f:
data = json.load(f)
data["scenarios"] = scenarios
with open(results_json, "w", encoding="utf-8") as f:
json.dump(data, f, indent=2, ensure_ascii=False)
generate_report(result_root, backend, scenarios)
print(f"Parsed {len(scenarios)} scenarios into {result_root}/report.md")
if __name__ == "__main__":
main()

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@ -1,76 +0,0 @@
#!/usr/bin/env python3
"""Send a small number of warmup requests to a running backend.
Uses sglang.bench_serving with a single request so that the same code path
(prefill / decode kernels, CUDA graphs, etc.) is exercised before the real
benchmark begins. Discards the output.
"""
import argparse
import subprocess
import sys
import tempfile
from pathlib import Path
def run_warmup(backend: str, host: str, port: int, input_len: int, output_len: int, num: int, env_python: Path) -> None:
with tempfile.NamedTemporaryFile(mode="w", suffix=".jsonl", delete=True) as tmp:
cmd = [
str(env_python),
"-m",
"sglang.bench_serving",
"--backend",
backend,
"--host",
host,
"--port",
str(port),
"--dataset-name",
"random",
"--random-input-len",
str(input_len),
"--random-output-len",
str(output_len),
"--num-prompts",
str(num),
"--max-concurrency",
"1",
"--request-rate",
"10000",
"--output-file",
tmp.name,
"--output-details",
]
print(f"[warmup] {' '.join(cmd)}", flush=True)
result = subprocess.run(cmd, capture_output=True, text=True)
if result.returncode != 0:
print("[warmup] FAILED", file=sys.stderr)
print(result.stdout, file=sys.stderr)
print(result.stderr, file=sys.stderr)
sys.exit(1)
print(f"[warmup] OK: backend={backend} port={port} input={input_len} output={output_len} num={num}")
def main():
parser = argparse.ArgumentParser(description="Warmup a serving backend.")
parser.add_argument("--backend", required=True, choices=["sglang", "vllm"])
parser.add_argument("--port", type=int, required=True)
parser.add_argument("--input-len", type=int, required=True)
parser.add_argument("--output-len", type=int, required=True)
parser.add_argument("--num", type=int, default=1)
parser.add_argument("--host", default="127.0.0.1")
parser.add_argument("--env-python", default="/data/user1/yy/envs/sglang/bin/python")
args = parser.parse_args()
run_warmup(
backend=args.backend,
host=args.host,
port=args.port,
input_len=args.input_len,
output_len=args.output_len,
num=args.num,
env_python=Path(args.env_python),
)
if __name__ == "__main__":
main()