大约有 36,000 项符合查询结果(耗时:0.0315秒) [XML]

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Assembly code vs Machine code vs Object code?

...ine code is binary (1's and 0's) code that can be executed directly by the CPU. If you were to open a machine code file in a text editor you would see garbage, including unprintable characters (no, not those unprintable characters ;) ). Object code is a portion of machine code not yet linked into a ...
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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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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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Why is volatile not considered useful in multithreaded C or C++ programming?

...g is to use a memory barrier, which indicates both to the compiler and the CPU that no memory access may be reordered across this point. Placing such barriers around our volatile variable access ensures that even non-volatile accesses won't be reordered across the volatile one, allowing us to write ...
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Simple proof that GUID is not unique [closed]

...s licensed under the following terms: you must pay me $0.0001 per hour per CPU core you run it on. Fees are payable at the end of each calendar month. Please contact me for my paypal account details at your earliest convenience. using System; using System.Collections.Generic; using System.Linq; na...
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C# 能否获取一个对象所占内存的大小? - 更多技术 - 清泛网 - 专注C/C++及内核技术

...所占内存的大小?今日,在项目重构的时候忽然想到一个问题,一个类哪些成员的增加,会影响一个类所占内存的大小?C#有没有办法知道一个对象占多少内存呢? ...今日,在项目重构的时候忽然想到一个问题,一个类哪些成员...
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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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Difference between a “coroutine” and a “thread”?

...ple threads may be executing at any given time. (Traditionally, on single-CPU, single-core machines, that concurrency was simulated with some help from the OS -- nowadays, since so many machines are multi-CPU and/or multi-core, threads will de facto be executing simultaneously, not just "conceptual...
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C# vs C - Big performance difference

...ction. It isn't always faster because a native language generated it, the cpu doesn't care. – Hans Passant Mar 17 '12 at 10:09 17 ...
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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...