import threading import time from collections import defaultdict from datetime import datetime, timedelta from typing import Any, Dict from src.common.logger import get_module_logger from ...common.database import db logger = get_module_logger("llm_statistics") class LLMStatistics: def __init__(self, output_file: str = "llm_statistics.txt"): """初始化LLM统计类 Args: output_file: 统计结果输出文件路径 """ self.output_file = output_file self.running = False self.stats_thread = None self._init_database() def _init_database(self): """初始化数据库集合""" if "online_time" not in db.list_collection_names(): db.create_collection("online_time") db.online_time.create_index([("timestamp", 1)]) def start(self): """启动统计线程""" if not self.running: self.running = True self.stats_thread = threading.Thread(target=self._stats_loop) self.stats_thread.daemon = True self.stats_thread.start() def stop(self): """停止统计线程""" self.running = False if self.stats_thread: self.stats_thread.join() def _record_online_time(self): """记录在线时间""" current_time = datetime.now() # 检查5分钟内是否已有记录 recent_record = db.online_time.find_one({ "timestamp": { "$gte": current_time - timedelta(minutes=5) } }) if not recent_record: db.online_time.insert_one({ "timestamp": current_time, "duration": 5 # 5分钟 }) def _collect_statistics_for_period(self, start_time: datetime) -> Dict[str, Any]: """收集指定时间段的LLM请求统计数据 Args: start_time: 统计开始时间 """ stats = { "total_requests": 0, "requests_by_type": defaultdict(int), "requests_by_user": defaultdict(int), "requests_by_model": defaultdict(int), "average_tokens": 0, "total_tokens": 0, "total_cost": 0.0, "costs_by_user": defaultdict(float), "costs_by_type": defaultdict(float), "costs_by_model": defaultdict(float), # 新增token统计字段 "tokens_by_type": defaultdict(int), "tokens_by_user": defaultdict(int), "tokens_by_model": defaultdict(int), # 新增在线时间统计 "online_time_minutes": 0, } cursor = db.llm_usage.find({"timestamp": {"$gte": start_time}}) total_requests = 0 for doc in cursor: stats["total_requests"] += 1 request_type = doc.get("request_type", "unknown") user_id = str(doc.get("user_id", "unknown")) model_name = doc.get("model_name", "unknown") stats["requests_by_type"][request_type] += 1 stats["requests_by_user"][user_id] += 1 stats["requests_by_model"][model_name] += 1 prompt_tokens = doc.get("prompt_tokens", 0) completion_tokens = doc.get("completion_tokens", 0) total_tokens = prompt_tokens + completion_tokens stats["tokens_by_type"][request_type] += total_tokens stats["tokens_by_user"][user_id] += total_tokens stats["tokens_by_model"][model_name] += total_tokens stats["total_tokens"] += total_tokens cost = doc.get("cost", 0.0) stats["total_cost"] += cost stats["costs_by_user"][user_id] += cost stats["costs_by_type"][request_type] += cost stats["costs_by_model"][model_name] += cost total_requests += 1 if total_requests > 0: stats["average_tokens"] = stats["total_tokens"] / total_requests # 统计在线时间 online_time_cursor = db.online_time.find({"timestamp": {"$gte": start_time}}) for doc in online_time_cursor: stats["online_time_minutes"] += doc.get("duration", 0) return stats def _collect_all_statistics(self) -> Dict[str, Dict[str, Any]]: """收集所有时间范围的统计数据""" now = datetime.now() return { "all_time": self._collect_statistics_for_period(datetime.min), "last_7_days": self._collect_statistics_for_period(now - timedelta(days=7)), "last_24_hours": self._collect_statistics_for_period(now - timedelta(days=1)), "last_hour": self._collect_statistics_for_period(now - timedelta(hours=1)), } def _format_stats_section(self, stats: Dict[str, Any], title: str) -> str: """格式化统计部分的输出""" output = [] output.append("\n" + "-" * 84) output.append(f"{title}") output.append("-" * 84) output.append(f"总请求数: {stats['total_requests']}") if stats["total_requests"] > 0: output.append(f"总Token数: {stats['total_tokens']}") output.append(f"总花费: {stats['total_cost']:.4f}¥") output.append(f"在线时间: {stats['online_time_minutes']}分钟\n") data_fmt = "{:<32} {:>10} {:>14} {:>13.4f} ¥" # 按模型统计 output.append("按模型统计:") output.append(("模型名称 调用次数 Token总量 累计花费")) for model_name, count in sorted(stats["requests_by_model"].items()): tokens = stats["tokens_by_model"][model_name] cost = stats["costs_by_model"][model_name] output.append( data_fmt.format(model_name[:32] + ".." if len(model_name) > 32 else model_name, count, tokens, cost) ) output.append("") # 按请求类型统计 output.append("按请求类型统计:") output.append(("模型名称 调用次数 Token总量 累计花费")) for req_type, count in sorted(stats["requests_by_type"].items()): tokens = stats["tokens_by_type"][req_type] cost = stats["costs_by_type"][req_type] output.append( data_fmt.format(req_type[:22] + ".." if len(req_type) > 24 else req_type, count, tokens, cost) ) output.append("") # 修正用户统计列宽 output.append("按用户统计:") output.append(("模型名称 调用次数 Token总量 累计花费")) for user_id, count in sorted(stats["requests_by_user"].items()): tokens = stats["tokens_by_user"][user_id] cost = stats["costs_by_user"][user_id] output.append( data_fmt.format( user_id[:22], # 不再添加省略号，保持原始ID count, tokens, cost, ) ) return "\n".join(output) def _save_statistics(self, all_stats: Dict[str, Dict[str, Any]]): """将统计结果保存到文件""" current_time = datetime.now().strftime("%Y-%m-%d %H:%M:%S") output = [] output.append(f"LLM请求统计报告 (生成时间: {current_time})") # 添加各个时间段的统计 sections = [ ("所有时间统计", "all_time"), ("最近7天统计", "last_7_days"), ("最近24小时统计", "last_24_hours"), ("最近1小时统计", "last_hour"), ] for title, key in sections: output.append(self._format_stats_section(all_stats[key], title)) # 写入文件 with open(self.output_file, "w", encoding="utf-8") as f: f.write("\n".join(output)) def _stats_loop(self): """统计循环，每1分钟运行一次""" while self.running: try: # 记录在线时间 self._record_online_time() # 收集并保存统计数据 all_stats = self._collect_all_statistics() self._save_statistics(all_stats) except Exception: logger.exception("统计数据处理失败") # 等待5分钟 for _ in range(300): # 5分钟 = 300秒 if not self.running: break time.sleep(1)