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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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How can I determine if a .NET assembly was built for x86 or x64?

...ou need to seek to determine if the 32BIT flag is set to 1 (x86) or 0 (Any CPU or x64, depending on PE): Option | PE | 32BIT ----------|-------|--------- x86 | PE32 | 1 Any CPU | PE32 | 0 x64 | PE32+ | 0 The blog post x64 Development with .NET has some information about corf...
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bpftrace教程【官方】 - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术

...\n", comm, str(args->filename)); }' Attaching 1 probe... snmp-pass /proc/cpuinfo snmp-pass /proc/stat snmpd /proc/net/dev snmpd /proc/net/if_inet6 ^C 这里我们跟踪文件打开的时候打印进程名和文件名。 该命令开始是tracepoint:syscalls:sys_enter_openat: 这个是t...
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Detect iPad users using jQuery?

...ser agent strings from iOS devices: # iOS Safari iPad: Mozilla/5.0 (iPad; CPU OS 5_1 like Mac OS X) AppleWebKit/534.46 (KHTML, like Gecko) Version/5.1 Mobile/9B176 Safari/7534.48.3 iPhone: Mozilla/5.0 (iPhone; CPU iPhone OS 5_0 like Mac OS X) AppleWebKit/534.46 (KHTML, like Gecko) Version/5.1 Mobil...
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What is the difference between concurrency, parallelism and asynchronous methods?

..., which means that it processes multiple sub-tasks of a task in multi-core CPU at same time. An application can be neither parallel – nor concurrent, which means that it processes all tasks one at a time, sequentially. An application can be both parallel – and concurrent, which means that it p...
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Is there a sleep function in JavaScript? [duplicate]

... A naive, CPU-intensive method to block execution for a number of milliseconds: /** * Delay for a number of milliseconds */ function sleep(delay) { var start = new Date().getTime(); while (new Date().getTime() < start + del...
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How do I choose between Semaphore and SemaphoreSlim?

...because it uses a spin wait. This is more responsive, but eats up a lot of CPU and would be wasteful for longer wait periods where instantaneous responses are less important. Semaphore blocks the thread instead. – r2_118 Jan 4 '16 at 22:34 ...
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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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How do you add a timer to a C# console application

...for (; ; ) { // add a sleep for 100 mSec to reduce CPU usage Thread.Sleep(100); } } } And here is the resulting output: c:\temp>timer.exe Creating timer: 5:22:40 Tick: 5:22:40 Tick: 5:22:41 Tick: 5:22:42 Tick: 5:2...
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创业测试:50个迹象表明你真该创业了 - 资讯 - 清泛网 - 专注C/C++及内核技术

...个很吓人的过程,需要大量辛勤的劳作。但是是否创业这问题日夜都在困扰着你。至于原因,或许你仅仅是不满足于自己的现状;或许你是渴望开一家属于自己的店铺或是咨询公司;再或者只是你觉得你的生活需要一个显著的变化...