7 entries (30→37 total). Muse Glimmer 28B (GGUF) avg 80.7 — the strongest model in the benchmark, 6/7 prompts Minor Logic Flaws: lfu 76 | webhook 81 | automation 89 | rust 85 | data 88 | tts 58 | mcp 88 Standout results: - rust 85 (KAT 36, Qwen3-Coder 54) — real tokio channels (mpsc::channel, not hallucinated mpsc::bounded), two-tier CancellationToken, zero clippy lints; one-line E0507 compile fix. - automation 89 — first model to print a correct summary (98/2/0/100); atomic temp+fsync+rename checkpointing. - data 88 edges out Gemma-26B's 86; mcp 88 sets the bar on a new prompt. Only weak spot: tts 58 (backpressure raises instead of awaits, like Qwen3-Coder). Captured via the native /api/v1/chat fix (real tok/sec + TTFT). Slow deep-thinker: ~17-19 t/s, 5-9 min/prompt, ~5-9k tokens incl. reasoning. Also gitignore checkpoint.json (automation test runtime artifact). Co-Authored-By: Claude <noreply@anthropic.com>
271 lines
8.9 KiB
Python
271 lines
8.9 KiB
Python
# lfu_cache.py
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import asyncio
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import time
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from typing import Any, Optional, Dict, Set
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class _Node:
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__slots__ = ("key", "value", "expire_at", "freq", "prev", "next")
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def __init__(self, key=None, value=None, expire_at=None, freq=0):
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self.key = key
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self.value = value
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self.expire_at = expire_at
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self.freq = freq
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self.prev = None
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self.next = None
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class _FreqList:
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__slots__ = ("head", "tail")
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def __init__(self):
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self.head = _Node()
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self.tail = _Node()
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self.head.next = self.tail
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self.tail.prev = self.head
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class LFUCache:
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def __init__(self, capacity: int, evict_interval: float = 0.5):
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self.capacity = capacity
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self.key_map: Dict[Any, _Node] = {}
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self.freq_map: Dict[int, _FreqList] = {}
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self.min_freq = 0
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self.lock = asyncio.Lock()
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self._evictor_task: Optional[asyncio.Task] = None
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self._evict_interval = evict_interval
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# ---------- internal helpers ----------
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def _update_min_freq(self):
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while self.min_freq not in self.freq_map:
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self.min_freq += 1
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def _add_node_to_head(self, freq: int, node: _Node):
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lst = self.freq_map.get(freq)
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if lst is None:
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lst = _FreqList()
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self.freq_map[freq] = lst
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node.prev = lst.head
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node.next = lst.head.next
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lst.head.next.prev = node
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lst.head.next = node
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def _remove_node(self, node: _Node):
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freq = node.freq
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lst = self.freq_map.get(freq)
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if lst:
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node.prev.next = node.next
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node.next.prev = node.prev
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if lst.head.next is lst.tail:
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del self.freq_map[freq]
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if self.min_freq == freq:
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self._update_min_freq()
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if self.key_map.get(node.key) is node:
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del self.key_map[node.key]
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def _increment_freq(self, node: _Node):
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old_freq = node.freq
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lst = self.freq_map[old_freq]
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node.prev.next = node.next
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node.next.prev = node.prev
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if lst.head.next is lst.tail:
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del self.freq_map[old_freq]
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if self.min_freq == old_freq:
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self._update_min_freq()
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new_freq = old_freq + 1
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node.freq = new_freq
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self._add_node_to_head(new_freq, node)
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def _evict_one(self):
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if not self.freq_map:
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return
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if self.min_freq not in self.freq_map:
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self._update_min_freq()
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lst = self.freq_map[self.min_freq]
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node = lst.tail.prev
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if node is lst.head:
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return
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self._remove_node(node)
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def _is_expired(self, node: _Node) -> bool:
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return node.expire_at is not None and time.monotonic() > node.expire_at
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# ---------- public API ----------
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async def get(self, key: Any) -> Optional[Any]:
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async with self.lock:
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node = self.key_map.get(key)
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if not node:
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return None
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if self._is_expired(node):
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self._remove_node(node)
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return None
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self._increment_freq(node)
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return node.value
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async def put(self, key: Any, value: Any, ttl_seconds: Optional[float] = None):
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async with self.lock:
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now = time.monotonic()
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expire_at = now + ttl_seconds if ttl_seconds is not None else None
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node = self.key_map.get(key)
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if node:
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if self._is_expired(node):
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self._remove_node(node)
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node = None
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if node:
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node.value = value
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node.expire_at = expire_at
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self._increment_freq(node)
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return
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if len(self.key_map) >= self.capacity:
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self._evict_one()
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node = _Node(key=key, value=value, expire_at=expire_at, freq=1)
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self.key_map[key] = node
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self._add_node_to_head(1, node)
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if self.min_freq == 0 or 1 < self.min_freq:
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self.min_freq = 1
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def begin_transaction(self) -> "Transaction":
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return Transaction(self)
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async def start_evictor(self):
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if self._evictor_task and not self._evictor_task.done():
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return
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self._evictor_task = asyncio.create_task(self._evictor_loop())
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async def stop_evictor(self):
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if self._evictor_task:
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self._evictor_task.cancel()
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try:
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await self._evictor_task
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except asyncio.CancelledError:
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pass
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self._evictor_task = None
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async def _evictor_loop(self):
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while True:
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await asyncio.sleep(self._evict_interval)
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async with self.lock:
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now = time.monotonic()
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batch = 100
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count = 0
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for k in list(self.key_map.keys()):
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if count >= batch:
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break
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node = self.key_map.get(k)
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if node and node.expire_at and now > node.expire_at:
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self._remove_node(node)
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count += 1
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class Transaction:
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def __init__(self, cache: LFUCache):
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self.cache = cache
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self.pending_puts: Dict[Any, tuple[Any, Optional[float]]] = {}
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self.pending_deletes: Set[Any] = set()
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async def get(self, key: Any) -> Optional[Any]:
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if key in self.pending_deletes:
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return None
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if key in self.pending_puts:
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val, _ = self.pending_puts[key]
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return val
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async with self.cache.lock:
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node = self.cache.key_map.get(key)
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if not node:
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return None
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if node.expire_at and time.monotonic() > node.expire_at:
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self.cache._remove_node(node)
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return None
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return node.value
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async def put(self, key: Any, value: Any, ttl_seconds: Optional[float] = None):
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self.pending_puts[key] = (value, ttl_seconds)
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self.pending_deletes.discard(key)
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async def delete(self, key: Any):
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self.pending_deletes.add(key)
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self.pending_puts.pop(key, None)
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async def commit(self):
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async with self.cache.lock:
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for key in self.pending_deletes:
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node = self.cache.key_map.get(key)
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if node:
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self.cache._remove_node(node)
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for key, (value, ttl_seconds) in self.pending_puts.items():
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expire_at = None
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if ttl_seconds is not None:
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expire_at = time.monotonic() + ttl_seconds
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node = self.cache.key_map.get(key)
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if node:
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node.value = value
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node.expire_at = expire_at
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self.cache._increment_freq(node)
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else:
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if len(self.cache.key_map) >= self.cache.capacity:
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self.cache._evict_one()
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node = _Node(key=key, value=value, expire_at=expire_at, freq=1)
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self.cache.key_map[key] = node
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self.cache._add_node_to_head(1, node)
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if self.cache.min_freq == 0 or 1 < self.cache.min_freq:
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self.cache.min_freq = 1
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self.pending_puts.clear()
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self.pending_deletes.clear()
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def rollback(self):
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self.pending_puts.clear()
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self.pending_deletes.clear()
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# ------------------- tests -------------------
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async def main():
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cache = LFUCache(capacity=3, evict_interval=0.2)
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await cache.start_evictor()
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print("=== LFU eviction order ===")
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await cache.put("a", 1)
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await cache.put("b", 2)
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await cache.put("c", 3)
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await cache.get("a")
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await cache.get("a")
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await cache.get("b")
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await cache.put("d", 4) # should evict c
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assert await cache.get("c") is None
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assert await cache.get("a") == 1
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print("LFU eviction OK")
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print("=== TTL lazy vs background ===")
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await cache.put("x", "temp", ttl_seconds=0.1)
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await asyncio.sleep(0.15)
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assert await cache.get("x") is None
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await cache.put("y", "temp2", ttl_seconds=0.1)
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await asyncio.sleep(0.3)
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assert await cache.get("y") is None
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print("TTL OK")
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print("=== Transaction commit / rollback ===")
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tx = cache.begin_transaction()
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await tx.put("t1", 100)
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assert await cache.get("t1") is None
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await tx.commit()
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assert await cache.get("t1") == 100
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tx2 = cache.begin_transaction()
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await tx2.put("t2", 200)
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await tx2.rollback()
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assert await cache.get("t2") is None
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print("Transaction OK")
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print("=== Stress test 50 concurrent tasks ===")
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async def worker(i):
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for j in range(20):
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k = f"k{i%10}"
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await cache.put(k, i*j, ttl_seconds=5)
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await cache.get(k)
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await asyncio.gather(*(worker(i) for i in range(50)))
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print("Stress OK")
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await cache.stop_evictor()
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print("All tests passed")
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if __name__ == "__main__":
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asyncio.run(main())
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