ps为什么占用那么大的内存

页面:/news/view-2459195/ | 耗时:0.8031 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=2459195 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=2459195 LIMIT 0,1
select * from tbl_Articles_sphinx where id=2459195 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(1112776,1047441,1068118,1069253,1083265,1098442,993285,1105681,1078318,1101273,1062973,1111590,1086408,1091197,1070796,1051075,1128475,1104629,1069729,1083208,1096817,1113243,1100392,1097415,1055678,1114058,1044426,1074824,1056384,1107965) ORDER BY field (ArticleID,1112776,1047441,1068118,1069253,1083265,1098442,993285,1105681,1078318,1101273,1062973,1111590,1086408,1091197,1070796,1051075,1128475,1104629,1069729,1083208,1096817,1113243,1100392,1097415,1055678,1114058,1044426,1074824,1056384,1107965)