网速为何时高时低

页面:/news/view-204336/ | 耗时:0.5394 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=204336 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=204336 LIMIT 0,1
select * from tbl_Articles_sphinx where id=204336 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(1092682,251023,1860303,1133203,1095077,1066494,1770179,497753,2506199,662424,3004268,1116547,1858494,1860006,1559689,2579388,181364,1863502,1099175,1096080,2202243,1927427,1115819,1800945,1595648,1865949,132450,312788,1884771,1862497) ORDER BY field (ArticleID,1092682,251023,1860303,1133203,1095077,1066494,1770179,497753,2506199,662424,3004268,1116547,1858494,1860006,1559689,2579388,181364,1863502,1099175,1096080,2202243,1927427,1115819,1800945,1595648,1865949,132450,312788,1884771,1862497)