怎么清理内存

页面:/news/view-3374227/ | 耗时:0.0785 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=3374227 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=3374227 LIMIT 0,1
select * from tbl_Articles_sphinx where id=3374227 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(464176,438343,1089520,455255,98123,99112,461635,1097933,322311,1090264,3386328,915106,449413,462557,84719,358053,381877,369425,268015,445475,1099729,420894,1091763,1414150,1090527,439112,1113031,1095341,1825511,1095880) ORDER BY field (ArticleID,464176,438343,1089520,455255,98123,99112,461635,1097933,322311,1090264,3386328,915106,449413,462557,84719,358053,381877,369425,268015,445475,1099729,420894,1091763,1414150,1090527,439112,1113031,1095341,1825511,1095880)