vllm/tests/utils_/test_gc_utils.py
Jialin Ouyang c216119d64
[Core] GC Debug callback (#24829)
Signed-off-by: Jialin Ouyang <jialino@meta.com>
Signed-off-by: Jialin Ouyang <Jialin.Ouyang@gmail.com>
Co-authored-by: Jialin Ouyang <jialino@meta.com>
2025-09-27 17:53:31 +00:00

70 lines
2.3 KiB
Python

# SPDX-License-Identifier: Apache-2.0
# SPDX-FileCopyrightText: Copyright contributors to the vLLM project
from dataclasses import dataclass
from typing import Any
from vllm.utils.gc_utils import (GCDebugConfig, _compute_detailed_type,
_compute_top_gc_collected_objects)
@dataclass
class Normal:
v: int
@dataclass
class ListWrapper:
vs: list[int]
def __len__(self) -> int:
return len(self.vs)
def test_compute_detailed_type():
assert _compute_detailed_type(
Normal(v=8)) == "<class 'tests.utils_.test_gc_utils.Normal'>"
assert _compute_detailed_type([1, 2, 3]) == "<class 'list'>(size:3)"
assert _compute_detailed_type({4, 5}) == "<class 'set'>(size:2)"
assert _compute_detailed_type({6: 7}) == "<class 'dict'>(size:1)"
assert _compute_detailed_type(ListWrapper(
vs=[])) == "<class 'tests.utils_.test_gc_utils.ListWrapper'>(size:0)"
def test_compute_top_gc_collected_objects():
objects: list[Any] = [[1, 2, 3], [4, 5, 6], [7, 8, 9], [10, 11, 12],
{13, 14}, {
15: 16,
17: 18
},
Normal(v=19),
Normal(v=20),
Normal(v=21)]
assert _compute_top_gc_collected_objects(objects, top=-1) == ""
assert _compute_top_gc_collected_objects(objects, top=0) == ""
assert _compute_top_gc_collected_objects(
objects, top=1) == " 4:<class 'list'>(size:3)"
assert _compute_top_gc_collected_objects(objects, top=2) == "\n".join([
" 4:<class 'list'>(size:3)",
" 3:<class 'tests.utils_.test_gc_utils.Normal'>"
])
assert _compute_top_gc_collected_objects(objects, top=3) == "\n".join([
" 4:<class 'list'>(size:3)",
" 3:<class 'tests.utils_.test_gc_utils.Normal'>",
" 1:<class 'set'>(size:2)"
])
def test_gc_debug_config():
assert not GCDebugConfig(None).enabled
assert not GCDebugConfig("").enabled
assert not GCDebugConfig("0").enabled
config = GCDebugConfig("1")
assert config.enabled
assert config.top_objects == -1
config = GCDebugConfig("{\"top_objects\":5}")
assert config.enabled
assert config.top_objects == 5