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sglang/test/registered/sessions/test_streaming_session_swa.py
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2026-06-09 21:36:57 -07:00

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Python

import unittest
from sglang.test.ci.ci_register import register_cuda_ci
from sglang.test.kits.streaming_session_kit import (
AbortLeakReproKitMixin,
StreamingSessionKitMixin,
)
from sglang.test.server_fixtures.streaming_session_fixture import (
ABORT_REPRO_CHUNKED_PREFILL_SIZE,
ABORT_REPRO_CONTEXT_LEN,
ABORT_REPRO_PAGE_SIZE,
StreamingSessionServerBase,
)
register_cuda_ci(est_time=519, stage="base-b", runner_config="1-gpu-large")
SWA_MODEL = "openai/gpt-oss-20b"
# Common gpt-oss-20b launch args. Matches TestSessionLatency/TestSWARadixCacheKL.
SWA_COMMON_ARGS = [
"--mem-fraction-static",
"0.70",
"--cuda-graph-backend-prefill=disabled",
]
class TestStreamingSessionSWA(StreamingSessionServerBase, StreamingSessionKitMixin):
"""Baseline streaming session on a hybrid-SWA model."""
model = SWA_MODEL
extra_args = ["--chunked-prefill-size", "512", *SWA_COMMON_ARGS]
class TestStreamingSessionSWARetractLargePage(
StreamingSessionServerBase, StreamingSessionKitMixin
):
"""SWA under retract decode with page=256."""
model = SWA_MODEL
extra_args = [
"--chunked-prefill-size",
"4096",
"--page-size",
"256",
*SWA_COMMON_ARGS,
]
env_overrides = [("SGLANG_TEST_RETRACT", True)]
class TestStreamingSessionSWARetractMixedChunk(
StreamingSessionServerBase, StreamingSessionKitMixin
):
"""SWA under retract decode with --enable-mixed-chunk."""
model = SWA_MODEL
extra_args = [
"--chunked-prefill-size",
"128",
"--enable-mixed-chunk",
*SWA_COMMON_ARGS,
]
env_overrides = [("SGLANG_TEST_RETRACT", True)]
class TestStreamingSessionSWAAbortLeakRepro(
StreamingSessionServerBase, AbortLeakReproKitMixin
):
"""SWA abort-heavy chunked prefill leak repro."""
model = SWA_MODEL
extra_args = [
"--chunked-prefill-size",
str(ABORT_REPRO_CHUNKED_PREFILL_SIZE),
"--context-length",
str(ABORT_REPRO_CONTEXT_LEN),
"--page-size",
str(ABORT_REPRO_PAGE_SIZE),
"--max-running-requests",
"32",
"--log-level",
"info",
*SWA_COMMON_ARGS,
]
if __name__ == "__main__":
unittest.main()