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  • Caching Doesn’t Improve Mobile Web Performance (Much)2019-05-16 12:56:37

    说明: 概述:       最近的NSDI论文报道,将HTTP proxy的缓存命中率从22%提高到32%,使移动客户端的中间页面加载时间(PLT)提高了不到2%。 我们认为这种弱改进有两个主要原因:关键路径上的对象通常不被缓存,并且移动设备的有限计算能力导致计算延迟这是由于关键路径由很大一部分组成

  • adb server version doesn't match...2019-03-11 16:40:14

    常常是在安装并启动了Android模拟器(如genymotion、夜神)或者连接工具客户端(去airdroid)的时候, 使用adb devices命令查看连接的设备,会出现如下报错: List of devices attachedadb server version (36) doesn't match this client (40); killing...could not read ok from ADB Server* f

  • 27. Remove Element(js)2019-02-17 21:51:05

    27. Remove Element Given an array nums and a value val, remove all instances of that value in-place and return the new length. Do not allocate extra space for another array, you must do this by modifying the input array in-place with O(1) extra memory

  • Err 1136 - Column count doesn't match value count at row 12019-02-13 14:49:35

    1 错误描述   [Err] 1136 - Column count doesn't match value count at row 1 Procedure execution failed 1136 - Column count doesn't match value count at row 1 2 错误原因      在存储过程里,创建临时表,插入数据时插入的字段个数跟临时表里的字段个数不一致,导致出错

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