diff --git a/Merge/back_wzy/models/syscost.py b/Merge/back_wzy/models/syscost.py
new file mode 100644
index 0000000..bbde029
--- /dev/null
+++ b/Merge/back_wzy/models/syscost.py
@@ -0,0 +1,15 @@
+from sqlalchemy import Column, BigInteger, DateTime, String, Float, func
+from sqlalchemy.ext.declarative import declarative_base
+
+Base = declarative_base()
+
+class PerformanceData(Base):
+    __tablename__ = 'performance_data'
+
+    id = Column(BigInteger, primary_key=True, autoincrement=True)
+    record_time = Column(DateTime, nullable=False, server_default=func.now(), comment='记录时间')
+    endpoint = Column(String(255), nullable=True, comment='请求接口路径')
+    elapsed_time = Column(Float, nullable=False, comment='总耗时（秒）')
+    cpu_user = Column(Float, nullable=False, comment='用户态 CPU 时间差（秒）')
+    cpu_system = Column(Float, nullable=False, comment='系统态 CPU 时间差（秒）')
+    memory_rss = Column(BigInteger, nullable=False, comment='RSS 内存增量（字节）')
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