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携程遭超长宕机:内部数据管理恐存严重漏洞 - 资讯 - 清泛网 - 专注C/C++及内核技术

...目前官方透露的信息判断,携程网站数据层、网络层均没问题,那么问题就在应用层或存储逻辑层。很可能关键性的系统部署和配置数据已被删除或篡改了。 不过,前支付宝运维团队创始人智锦撰文指出,携程网宕机很可能并...
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fastest (low latency) method for Inter Process Communication between Java and C/C++

...e send/received, 2 Java processes just spawned, without assigning specific CPU cores with taskset: TCP - 25 microseconds Named pipes - 15 microseconds Now explicitly specifying core masks, like taskset 1 java Srv or taskset 2 java Cli: TCP, same cores: 30 microsecond...
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BLE协议—广播和扫描 - 创客硬件开发 - 清泛IT社区,为创新赋能!

...用扫描和广播进行数据的传输(数据量不大,功耗要求较高的情况下),也可以在广播和扫描的基础上进行连接后点对点通信。广播访问地址广播包:广播包Access Address 固定为0x8E89BED6,广播包只能在广播信道(channel)上传输,...
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Why is Java's boolean primitive size not defined?

...are managed via your getters and setters. However, you'll pay a penalty in CPU time that is probably bigger than the penalty in memory. share | improve this answer | follow ...
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What is the “FS”/“GS” register intended for?

... used to manage thread-specific memory. The linux kernel uses GS to access cpu-specific memory. share | improve this answer | follow | ...
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VIP会员中心 · App Inventor 2 中文网,少儿编程陪伴者

...行源码,保持与MIT同步更新,可深入源码级分析解决技术问题,做您最坚强的技术后盾! 立即开通 / 续期      团购更优惠 ...
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程序员羊皮卷下载版.pdf - 文档下载 - 清泛网 - 专注C/C++及内核技术

...救世主 20 第2 章 四招找到好工作 20 求职中的心理健康问题 20 大专生求职受歧视 21 这世界并不亏欠我们什么 23 求职中的正确态度 24 面试前充分准备 24 专注于真正的机会 25 五个步骤查实公司信息 26 筛选重点应聘目标 27 ...
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“21天教你学会C++” - 创意 - 清泛网 - 专注C/C++及内核技术

...未命中的情况),从磁盘上读取连续的数据要多长时间,定位到磁盘上的新位置又要多长时间。(答案在这里) 尝试参与到一项语言标准化工作中。可以是ANSI C++委员会,也可以是决定自己团队的编码风格到底采用2个空格的缩...
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Context switches much slower in new linux kernels

...ance problem in recent kernels has to do with the switch to the intel_idle cpuidle driver from acpi_idle, the driver used in older kernels. Sadly, the intel_idle driver ignores the user's BIOS configuration for the C-states and dances to its own tune. In other words, even if you completely disable a...
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clang: how to list supported target architectures?

...the architectures listed, llc -march=ARCH -mattr=help will list "available CPUs" and "available features". The CPUs are generally just a convenient way of setting a default collection of features. But now for the bad news. There is no convenient table of triples in Clang or LLVM that can be dumped...