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Android应用开发性能优化完全分析 - 更多技术 - 清泛网 - 专注C/C++及内核技术

...ap内部结构就是一个哈希表的拉链结构。HashMap默认实现的扩容是以2倍增加,且获取一个节点采用了遍历法,所以相对来说无论从内存消耗还是节点查找上都是十分昂贵的。 SparseArray: SparseArray比HashMap省内存是因为它避免了对Ke...
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How can I plot with 2 different y-axes?

....8 2015 75.2 2.0 74.6 2.3 74.2 1.7 2020 76.0 2.0 75.4 2.2 75.2 1.6 2025 76.8 1.9 76.2 2.1 76.1 1.6 2030 77.6 1.9 76.9 2.1 77.1 1.6 2035 78.4 1.9 77.6 2.0 77.9 1.7 2040 79.1 1.8 78.3 1.9 78.7 1.7 2045 79.8 1.8 79.0 1.9 79.5 1.7 2050 80.5 1.8 79.7 1.9 80.3 1.7 2055 81....
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Colors in JavaScript console

...sl(2014.2, 100%, 50%), -43px 374px hsl(2019.6, 100%, 50%), -42px 375px hsl(2025, 100%, 50%), -41px 376px hsl(2030.4, 100%, 50%), -39px 377px hsl(2035.8, 100%, 50%), -38px 378px hsl(2041.2, 100%, 50%), -36px 379px hsl(2046.6, 100%, 50%), -35px 380px hsl(2052, 100%, 50%), -33px 381px hsl(2057.4, 100%,...
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Fastest way to determine if an integer's square root is an integer

...23,1595,943,1395,1721,2027,1761,1955,1335,357,113,1747,1497,1461, 1791,771,2025,1285,145,973,249,171,1825,611,265,1189,847,1427,2023,1269, 321,1475,1577,69,1233,755,1223,1685,1889,733,1865,2021,1807,1107,1447,1077, 1663,1917,1129,1147,1775,1613,1401,555,1953,2019,631,1243,1329,787,871,885, 449,1213,...
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廉价共享存储解决方案1-drbd+ha+nfs - 更多技术 - 清泛网 - 专注C/C++及内核技术

...到该文件。 本人卡在此处3天时间。一直不能切换。后来百度google一起上阵得到下列代码。(该段代码没有测试。用了一段简易的脚本代替) # vi /etc/ha.d/resource.d/drbddisk FIO 测试 随机读 顺序读 随...