怎么删除内存

页面:/news/view-3391843/ | 耗时:0.9684 s | 内存:1.89 MB | 查询:4 | 缓存读取:4 写入:0 | 加载文件:23
select * from tbl_Articles WHERE ArticleID=3391843 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=3391843 LIMIT 0,1
select * from tbl_Articles_sphinx where id=3391843 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(1177633,1299398,1071423,452215,382716,1088517,372236,3408354,1094695,411303,1105826,2790271,2966784,431627,417126,3322459,1777965,1086436,1278787,1102278,395041,312262,369579,1105229,98936,407158,459136,986831,3475013,450005) ORDER BY field (ArticleID,1177633,1299398,1071423,452215,382716,1088517,372236,3408354,1094695,411303,1105826,2790271,2966784,431627,417126,3322459,1777965,1086436,1278787,1102278,395041,312262,369579,1105229,98936,407158,459136,986831,3475013,450005)