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sglang/python/sglang/multimodal_gen/test/server/testcase_configs.py

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Python

"""
Configuration and data structures for diffusion performance tests.
Usage:
pytest python/sglang/multimodal_gen/test/server/test_server_a.py
# for a single testcase, look for the name of the testcases in DIFFUSION_CASES
pytest python/sglang/multimodal_gen/test/server/test_server_a.py -k qwen_image_t2i
To add a new testcase:
1. add your testcase with case-id: `my_new_test_case_id` to DIFFUSION_CASES
2. run `SGLANG_GEN_BASELINE=1 pytest -s python/sglang/multimodal_gen/test/server/test_server_a.py -k my_new_test_case_id`
3. insert or override the corresponding scenario in `scenarios` section of perf_baselines.json with the output baseline of step-2
"""
from __future__ import annotations
import json
import os
import statistics
from dataclasses import dataclass
from pathlib import Path
from typing import Sequence
from sglang.multimodal_gen.runtime.utils.perf_logger import RequestPerfRecord
@dataclass
class ToleranceConfig:
"""Tolerance ratios for performance validation."""
e2e: float
denoise_stage: float
non_denoise_stage: float
denoise_step: float
denoise_agg: float
@classmethod
def load_profile(cls, all_tolerances: dict, profile_name: str) -> ToleranceConfig:
"""Load a specific tolerance profile from a dictionary of profiles."""
# Support both flat structure (backward compatibility) and profiled structure
if "e2e" in all_tolerances and not isinstance(all_tolerances["e2e"], dict):
tol_data = all_tolerances
actual_profile = "legacy/flat"
else:
tol_data = all_tolerances.get(
profile_name, all_tolerances.get("pr_test", {})
)
actual_profile = (
profile_name if profile_name in all_tolerances else "pr_test"
)
if not tol_data:
raise ValueError(
f"No tolerance profile found for '{profile_name}' and no default 'pr_test' profile exists."
)
print(f"--- Performance Tolerance Profile: {actual_profile} ---")
return cls(
e2e=float(os.getenv("SGLANG_E2E_TOLERANCE", tol_data["e2e"])),
denoise_stage=float(
os.getenv("SGLANG_STAGE_TIME_TOLERANCE", tol_data["denoise_stage"])
),
non_denoise_stage=float(
os.getenv(
"SGLANG_NON_DENOISE_STAGE_TIME_TOLERANCE",
tol_data["non_denoise_stage"],
)
),
denoise_step=float(
os.getenv("SGLANG_DENOISE_STEP_TOLERANCE", tol_data["denoise_step"])
),
denoise_agg=float(
os.getenv("SGLANG_DENOISE_AGG_TOLERANCE", tol_data["denoise_agg"])
),
)
@dataclass
class ScenarioConfig:
"""Expected performance metrics for a test scenario."""
stages_ms: dict[str, float]
denoise_step_ms: dict[int, float]
expected_e2e_ms: float
expected_avg_denoise_ms: float
expected_median_denoise_ms: float
@dataclass
class BaselineConfig:
"""Full baseline configuration."""
scenarios: dict[str, ScenarioConfig]
step_fractions: Sequence[float]
warmup_defaults: dict[str, int]
tolerances: ToleranceConfig
improvement_threshold: float
@classmethod
def load(cls, path: Path) -> BaselineConfig:
"""Load baseline configuration from JSON file."""
with path.open("r", encoding="utf-8") as fh:
data = json.load(fh)
# Get tolerance profile, defaulting to 'pr_test'
profile_name = "pr_test"
tolerances = ToleranceConfig.load_profile(
data.get("tolerances", {}), profile_name
)
scenarios = {}
for name, cfg in data["scenarios"].items():
scenarios[name] = ScenarioConfig(
stages_ms=cfg["stages_ms"],
denoise_step_ms={int(k): v for k, v in cfg["denoise_step_ms"].items()},
expected_e2e_ms=float(cfg["expected_e2e_ms"]),
expected_avg_denoise_ms=float(cfg["expected_avg_denoise_ms"]),
expected_median_denoise_ms=float(cfg["expected_median_denoise_ms"]),
)
return cls(
scenarios=scenarios,
step_fractions=tuple(data["sampling"]["step_fractions"]),
warmup_defaults=data["sampling"].get("warmup_requests", {}),
tolerances=tolerances,
improvement_threshold=data.get("improvement_reporting", {}).get(
"threshold", 0.2
),
)
@dataclass(frozen=True)
class DiffusionServerArgs:
"""Configuration for a single model/scenario test case."""
model_path: str # HF repo or local path
modality: str = "image" # "image" or "video" or "3d"
warmup_text: int = 1 # number of text-to-image/video warmups
warmup_edit: int = 0 # number of image/video-edit warmups
custom_validator: str | None = None # optional custom validator name
# resources
num_gpus: int = 1
tp_size: int | None = None
ulysses_degree: int | None = None
ring_degree: int | None = None
# LoRA
lora_path: str | None = None # LoRA adapter path (HF repo or local path)
dit_layerwise_offload: bool = False
@dataclass(frozen=True)
class DiffusionSamplingParams:
"""Configuration for a single model/scenario test case."""
output_size: str = ""
# inputs and conditioning
prompt: str | None = None # text prompt for generation
image_path: Path | str | None = None # input image/video for editing (Path or URL)
# duration
seconds: int = 1 # for video: duration in seconds
num_frames: int | None = None # for video: number of frames
fps: int | None = None # for video: frames per second
# URL direct test flag - if True, don't pre-download URL images
direct_url_test: bool = False
num_outputs_per_prompt: int = 1
@dataclass(frozen=True)
class DiffusionTestCase:
"""Configuration for a single model/scenario test case."""
id: str # pytest test id and scenario name
server_args: DiffusionServerArgs
sampling_params: DiffusionSamplingParams
def sample_step_indices(
step_map: dict[int, float], fractions: Sequence[float]
) -> list[int]:
if not step_map:
return []
max_idx = max(step_map.keys())
indices = set()
for fraction in fractions:
idx = min(max_idx, max(0, int(round(fraction * max_idx))))
if idx in step_map:
indices.add(idx)
return sorted(indices)
@dataclass
class PerformanceSummary:
"""Summary of performance of a request, built from RequestPerfRecord"""
e2e_ms: float
avg_denoise_ms: float
median_denoise_ms: float
# { "stage_1": time_1, "stage_2": time_2 }
stage_metrics: dict[str, float]
step_metrics: list[float]
sampled_steps: dict[int, float]
all_denoise_steps: dict[int, float]
frames_per_second: float | None = None
total_frames: int | None = None
avg_frame_time_ms: float | None = None
@staticmethod
def from_req_perf_record(
record: RequestPerfRecord, step_fractions: Sequence[float]
):
"""Collect all performance metrics into a summary without validation."""
e2e_ms = record.total_duration_ms
step_durations = record.steps
avg_denoise = 0.0
median_denoise = 0.0
if step_durations:
avg_denoise = sum(step_durations) / len(step_durations)
median_denoise = statistics.median(step_durations)
per_step = {index: s for index, s in enumerate(step_durations)}
sample_indices = sample_step_indices(per_step, step_fractions)
sampled_steps = {idx: per_step[idx] for idx in sample_indices}
# convert from list to dict
stage_metrics = {}
for item in record.stages:
if isinstance(item, dict) and "name" in item:
val = item.get("execution_time_ms", 0.0)
stage_metrics[item["name"]] = val
return PerformanceSummary(
e2e_ms=e2e_ms,
avg_denoise_ms=avg_denoise,
median_denoise_ms=median_denoise,
stage_metrics=stage_metrics,
step_metrics=step_durations,
sampled_steps=sampled_steps,
all_denoise_steps=per_step,
)
T2I_sampling_params = DiffusionSamplingParams(
prompt="Doraemon is eating dorayaki",
output_size="1024x1024",
)
TI2I_sampling_params = DiffusionSamplingParams(
prompt="Convert 2D style to 3D style",
image_path="https://github.com/lm-sys/lm-sys.github.io/releases/download/test/TI2I_Qwen_Image_Edit_Input.jpg",
)
MULTI_IMAGE_TI2I_sampling_params = DiffusionSamplingParams(
prompt="The magician bear is on the left, the alchemist bear is on the right, facing each other in the central park square.",
image_path=[
"https://qianwen-res.oss-cn-beijing.aliyuncs.com/Qwen-Image/edit2509/edit2509_1.jpg",
"https://qianwen-res.oss-cn-beijing.aliyuncs.com/Qwen-Image/edit2509/edit2509_2.jpg",
],
direct_url_test=True,
)
T2V_PROMPT = "A curious raccoon"
TI2V_sampling_params = DiffusionSamplingParams(
prompt="The man in the picture slowly turns his head, his expression enigmatic and otherworldly. The camera performs a slow, cinematic dolly out, focusing on his face. Moody lighting, neon signs glowing in the background, shallow depth of field.",
image_path="https://is1-ssl.mzstatic.com/image/thumb/Music114/v4/5f/fa/56/5ffa56c2-ea1f-7a17-6bad-192ff9b6476d/825646124206.jpg/600x600bb.jpg",
direct_url_test=True,
)
# All test cases with clean default values
# To test different models, simply add more DiffusionCase entries
ONE_GPU_CASES_A: list[DiffusionTestCase] = [
# === Text to Image (T2I) ===
DiffusionTestCase(
"qwen_image_t2i",
DiffusionServerArgs(
model_path="Qwen/Qwen-Image",
modality="image",
warmup_text=1,
warmup_edit=0,
),
T2I_sampling_params,
),
DiffusionTestCase(
"flux_image_t2i",
DiffusionServerArgs(
model_path="black-forest-labs/FLUX.1-dev",
modality="image",
warmup_text=1,
warmup_edit=0,
),
T2I_sampling_params,
),
DiffusionTestCase(
"flux_2_image_t2i",
DiffusionServerArgs(
model_path="black-forest-labs/FLUX.2-dev",
modality="image",
warmup_text=1,
warmup_edit=0,
),
T2I_sampling_params,
),
# TODO: replace with a faster model to test the --dit-layerwise-offload
# TODO: currently, we don't support sending more than one request in test, and setting `num_outputs_per_prompt` to 2 doesn't guarantee the denoising be executed twice,
# so we do one warmup and send one request instead
DiffusionTestCase(
"flux_2_image_t2i_layerwise_offload",
DiffusionServerArgs(
model_path="black-forest-labs/FLUX.2-dev",
modality="image",
dit_layerwise_offload=True,
warmup_text=1,
),
T2I_sampling_params,
),
DiffusionTestCase(
"zimage_image_t2i",
DiffusionServerArgs(
model_path="Tongyi-MAI/Z-Image-Turbo",
modality="image",
warmup_text=1,
warmup_edit=0,
),
T2I_sampling_params,
),
# === Text and Image to Image (TI2I) ===
DiffusionTestCase(
"qwen_image_edit_ti2i",
DiffusionServerArgs(
model_path="Qwen/Qwen-Image-Edit",
modality="image",
warmup_text=0,
warmup_edit=1,
),
TI2I_sampling_params,
),
DiffusionTestCase(
"qwen_image_edit_2509_ti2i",
DiffusionServerArgs(
model_path="Qwen/Qwen-Image-Edit-2509",
modality="image",
warmup_text=0,
warmup_edit=1,
),
MULTI_IMAGE_TI2I_sampling_params,
),
]
ONE_GPU_CASES_B: list[DiffusionTestCase] = [
# === Text to Video (T2V) ===
DiffusionTestCase(
"wan2_1_t2v_1.3b",
DiffusionServerArgs(
model_path="Wan-AI/Wan2.1-T2V-1.3B-Diffusers",
modality="video",
warmup_text=0,
warmup_edit=0,
custom_validator="video",
),
DiffusionSamplingParams(
prompt=T2V_PROMPT,
),
),
# LoRA test case for single transformer + merge/unmerge API test
DiffusionTestCase(
"wan2_1_t2v_1_3b_lora_1gpu",
DiffusionServerArgs(
model_path="Wan-AI/Wan2.1-T2V-1.3B-Diffusers",
modality="video",
warmup_text=0,
warmup_edit=0,
custom_validator="video",
num_gpus=1,
lora_path="Cseti/Wan-LoRA-Arcane-Jinx-v1",
),
DiffusionSamplingParams(
prompt="csetiarcane Nfj1nx with blue hair, a woman walking in a cyberpunk city at night",
num_frames=8,
),
),
# NOTE(mick): flaky
# DiffusionTestCase(
# id="hunyuan_video",
# model_path="hunyuanvideo-community/HunyuanVideo",
# modality="video",
# prompt="A curious raccoon",
# output_size="720x480",
# warmup_text=0,
# warmup_edit=0,
# custom_validator="video",
# ),
DiffusionTestCase(
"flux_2_ti2i",
DiffusionServerArgs(
model_path="black-forest-labs/FLUX.2-dev",
modality="image",
warmup_text=0,
warmup_edit=1,
),
TI2I_sampling_params,
),
DiffusionTestCase(
"fast_hunyuan_video",
DiffusionServerArgs(
model_path="FastVideo/FastHunyuan-diffusers",
modality="video",
warmup_text=0,
warmup_edit=0,
custom_validator="video",
),
DiffusionSamplingParams(
prompt=T2V_PROMPT,
),
),
# === Text and Image to Video (TI2V) ===
DiffusionTestCase(
"wan2_2_ti2v_5b",
DiffusionServerArgs(
model_path="Wan-AI/Wan2.2-TI2V-5B-Diffusers",
modality="video",
warmup_text=0,
warmup_edit=0,
custom_validator="video",
),
TI2V_sampling_params,
),
DiffusionTestCase(
"fastwan2_2_ti2v_5b",
DiffusionServerArgs(
model_path="FastVideo/FastWan2.2-TI2V-5B-FullAttn-Diffusers",
modality="video",
warmup_text=0,
warmup_edit=0,
custom_validator="video",
),
TI2V_sampling_params,
),
]
TWO_GPU_CASES_A = [
DiffusionTestCase(
"wan2_2_i2v_a14b_2gpu",
DiffusionServerArgs(
model_path="Wan-AI/Wan2.2-I2V-A14B-Diffusers",
modality="video",
warmup_text=0,
warmup_edit=0,
custom_validator="video",
),
TI2V_sampling_params,
),
DiffusionTestCase(
"wan2_2_t2v_a14b_2gpu",
DiffusionServerArgs(
model_path="Wan-AI/Wan2.2-T2V-A14B-Diffusers",
modality="video",
warmup_text=0,
warmup_edit=0,
custom_validator="video",
num_gpus=2,
),
DiffusionSamplingParams(
prompt=T2V_PROMPT,
),
),
# LoRA test case for transformer_2 support
DiffusionTestCase(
"wan2_2_t2v_a14b_lora_2gpu",
DiffusionServerArgs(
model_path="Wan-AI/Wan2.2-T2V-A14B-Diffusers",
modality="video",
warmup_text=0,
warmup_edit=0,
custom_validator="video",
num_gpus=2,
lora_path="Cseti/wan2.2-14B-Arcane_Jinx-lora-v1",
),
DiffusionSamplingParams(
prompt="Nfj1nx with blue hair, a woman walking in a cyberpunk city at night",
),
),
DiffusionTestCase(
"wan2_1_t2v_14b_2gpu",
DiffusionServerArgs(
model_path="Wan-AI/Wan2.1-T2V-14B-Diffusers",
warmup_text=0,
warmup_edit=0,
modality="video",
num_gpus=2,
custom_validator="video",
),
DiffusionSamplingParams(
prompt=T2V_PROMPT,
output_size="832x480",
),
),
]
TWO_GPU_CASES_B = [
DiffusionTestCase(
"wan2_1_i2v_14b_480P_2gpu",
DiffusionServerArgs(
model_path="Wan-AI/Wan2.1-I2V-14B-480P-Diffusers",
warmup_text=0,
warmup_edit=0,
modality="video",
custom_validator="video",
num_gpus=2,
),
TI2V_sampling_params,
),
# I2V LoRA test case
DiffusionTestCase(
"wan2_1_i2v_14b_lora_2gpu",
DiffusionServerArgs(
model_path="Wan-AI/Wan2.1-I2V-14B-720P-Diffusers",
modality="video",
warmup_text=0,
warmup_edit=0,
custom_validator="video",
num_gpus=2,
lora_path="starsfriday/Wan2.1-Divine-Power-LoRA",
),
TI2V_sampling_params,
),
DiffusionTestCase(
"wan2_1_i2v_14b_720P_2gpu",
DiffusionServerArgs(
model_path="Wan-AI/Wan2.1-I2V-14B-720P-Diffusers",
modality="video",
warmup_text=0,
warmup_edit=0,
custom_validator="video",
num_gpus=2,
),
TI2V_sampling_params,
),
DiffusionTestCase(
"qwen_image_t2i_2_gpus",
DiffusionServerArgs(
model_path="Qwen/Qwen-Image",
modality="image",
warmup_text=1,
warmup_edit=0,
num_gpus=2,
# test ring attn
ulysses_degree=1,
ring_degree=2,
),
T2I_sampling_params,
),
DiffusionTestCase(
"flux_image_t2i_2_gpus",
DiffusionServerArgs(
model_path="black-forest-labs/FLUX.1-dev",
modality="image",
warmup_text=1,
warmup_edit=0,
num_gpus=2,
),
T2I_sampling_params,
),
DiffusionTestCase(
"flux_2_image_t2i_2_gpus",
DiffusionServerArgs(
model_path="black-forest-labs/FLUX.2-dev",
modality="image",
warmup_text=1,
warmup_edit=0,
num_gpus=2,
tp_size=2,
),
T2I_sampling_params,
),
]
# Load global configuration
BASELINE_CONFIG = BaselineConfig.load(Path(__file__).with_name("perf_baselines.json"))