test_bench_serving.py

import unittest

from sglang.test.test_utils import (
    DEFAULT_FP8_MODEL_NAME_FOR_TEST,
    DEFAULT_MODEL_NAME_FOR_TEST,
    DEFAULT_MOE_MODEL_NAME_FOR_TEST,
    is_in_ci,
    run_bench_serving,
    write_github_step_summary,
)


class TestBenchServing(unittest.TestCase):

    def test_offline_throughput_default(self):
        res = run_bench_serving(
            model=DEFAULT_MODEL_NAME_FOR_TEST,
            num_prompts=500,
            request_rate=float("inf"),
            other_server_args=[],
        )

        if is_in_ci():
            write_github_step_summary(
                f"### test_offline_throughput_default\n"
                f'Output throughput: {res["output_throughput"]:.2f} token/s\n'
            )
            self.assertGreater(res["output_throughput"], 3350)

    def test_offline_throughput_non_stream_small_batch_size(self):
        res = run_bench_serving(
            model=DEFAULT_MODEL_NAME_FOR_TEST,
            num_prompts=200,
            request_rate=float("inf"),
            other_server_args=["--max-running-requests", "10"],
            dataset_name="sharegpt",
            random_input_len=None,
            random_output_len=None,
            disable_stream=True,
            need_warmup=True,
        )

        if is_in_ci():
            write_github_step_summary(
                f"### test_offline_throughput_non_stream_small_batch_size\n"
                f'Output throughput: {res["output_throughput"]:.2f} token/s\n'
            )
            # There is a regression with torch 2.5
            # This number was 950 for torch 2.4
            self.assertGreater(res["output_throughput"], 800)

    def test_offline_throughput_without_radix_cache(self):
        res = run_bench_serving(
            model=DEFAULT_MODEL_NAME_FOR_TEST,
            num_prompts=500,
            request_rate=float("inf"),
            other_server_args=["--disable-radix-cache"],
        )

        if is_in_ci():
            write_github_step_summary(
                f"### test_offline_throughput_without_radix_cache\n"
                f'Output throughput: {res["output_throughput"]:.2f} token/s\n'
            )
            self.assertGreater(res["output_throughput"], 3350)

    def test_offline_throughput_without_chunked_prefill(self):
        res = run_bench_serving(
            model=DEFAULT_MODEL_NAME_FOR_TEST,
            num_prompts=500,
            request_rate=float("inf"),
            other_server_args=["--chunked-prefill-size", "-1"],
        )

        if is_in_ci():
            write_github_step_summary(
                f"### test_offline_throughput_without_chunked_prefill\n"
                f'Output throughput: {res["output_throughput"]:.2f} token/s\n'
            )
            self.assertGreater(res["output_throughput"], 2600)

    def test_offline_throughput_with_triton_attention_backend(self):
        res = run_bench_serving(
            model=DEFAULT_MODEL_NAME_FOR_TEST,
            num_prompts=500,
            request_rate=float("inf"),
            other_server_args=[
                "--attention-backend",
                "triton",
                "--context-length",
                "8192",
            ],
        )

        if is_in_ci():
            write_github_step_summary(
                f"### test_offline_throughput_with_triton_attention_backend\n"
                f'Output throughput: {res["output_throughput"]:.2f} token/s\n'
            )
            self.assertGreater(res["output_throughput"], 3450)

    def test_offline_throughput_default_fp8(self):
        res = run_bench_serving(
            model=DEFAULT_FP8_MODEL_NAME_FOR_TEST,
            num_prompts=500,
            request_rate=float("inf"),
            other_server_args=[],
        )

        if is_in_ci():
            write_github_step_summary(
                f"### test_offline_throughput_default_fp8\n"
                f'Output throughput: {res["output_throughput"]:.2f} token/s\n'
            )
            self.assertGreater(res["output_throughput"], 3850)

    def test_online_latency_default(self):
        res = run_bench_serving(
            model=DEFAULT_MODEL_NAME_FOR_TEST,
            num_prompts=100,
            request_rate=1,
            other_server_args=[],
        )

        if is_in_ci():
            write_github_step_summary(
                f"### test_online_latency_default\n"
                f'median_e2e_latency_ms : {res["median_e2e_latency_ms"]:.2f} token/s\n'
            )
            self.assertLess(res["median_e2e_latency_ms"], 12000)
            self.assertLess(res["median_ttft_ms"], 86)
            self.assertLess(res["median_itl_ms"], 10)

    def test_moe_offline_throughput_default(self):
        res = run_bench_serving(
            model=DEFAULT_MOE_MODEL_NAME_FOR_TEST,
            num_prompts=300,
            request_rate=float("inf"),
            other_server_args=["--tp", "2"],
        )

        if is_in_ci():
            write_github_step_summary(
                f"### test_moe_offline_throughput_default\n"
                f'Output throughput: {res["output_throughput"]:.2f} token/s\n'
            )
            self.assertGreater(res["output_throughput"], 2150)

    def test_moe_offline_throughput_without_radix_cache(self):
        res = run_bench_serving(
            model=DEFAULT_MOE_MODEL_NAME_FOR_TEST,
            num_prompts=300,
            request_rate=float("inf"),
            other_server_args=["--tp", "2", "--disable-radix-cache"],
        )

        if is_in_ci():
            write_github_step_summary(
                f"### test_moe_offline_throughput_without_radix_cache\n"
                f'Output throughput: {res["output_throughput"]:.2f} token/s\n'
            )
            self.assertGreater(res["output_throughput"], 2150)


if __name__ == "__main__":
    unittest.main()