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Stack Overflow：StackExchange网络不同主题网站的”祖父“ - 更多技术 - ...
...最早设立的是Stack Overflow，即一个供程序员互相解答编程问题的问答网站，随后我们试图将同样的技术推广到编程之外的领域，比如说烹饪、摄影等等，每个主题的问答站点就都称为StackExchange，合起来也就是StackExchange网络。因...
windows版 svn 服务器搭建及总结 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...e –d –r d:/svnserversoftware/myrepository
以下转载若干问题
1、不知道该怎么设置 svn://url 这个路径
2、三个需要设置的文件，其中authz这个里面的[repos:/]这个到底该怎么设置
3、认证失败问题出在哪里？
4、svn import 目录1 "s...
译文：理解Java中的弱引用 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...。既然它们是一些不知名的概念，我简单就着前面的三个问题来说明一下。
强引用(Strong Reference)
强引用就是我们经常使用的引用，其写法如下
StringBuffer buffer = new StringBuffer();
上面创建了一个StringBuffer对象，并将这个对象的...
How many threads is too many?
...acks and so on) since a thread doing no work will not be using much of the CPU. (B) will generally be a delay in the processing of requests as they arrive as you need to wait for a thread to become available.
That's why you measure. As you state, the vast majority of your threads will be waiting fo...
Asynchronous vs Multithreading - Is there a difference?
...ver the operation that needs to happen asynchronously does not require the CPU to do work, that operation can be done without spawning another thread. For example, if the async operation is I/O, the CPU does not have to wait for the I/O to complete. It just needs to start the operation, and can the...
当ORACLE 11G 遇到 JUNIPER 防火墙 - 数据库(内核) - 清泛网 - 专注C/C++及内核技术
...掉防火墙改为直连，WINDOWS的IP改为 172.16.110.70/24 没有任何问题。故判断是防火墙的问题。
防火墙策略全开 允许UNTRUNT 到TRUNT ANY 结果还是不行。
开始百度
第一个说法：需要更改windows的注册表
\\HKEY_LOCAL_MACHINE\SOFTW...
Why does the order of the loops affect performance when iterating over a 2D array?
...ht?
No: because of caches. Data from your memory gets brought over to the CPU in little chunks (called 'cache lines'), typically 64 bytes. If you have 4-byte integers, that means you're geting 16 consecutive integers in a neat little bundle. It's actually fairly slow to fetch these chunks of memory...
Android微信智能心跳方案 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...哥开始构思第一个方案，我们开始想用统计的方法来解决问题，当我们拿着第一个方案和Ray讨论时，发现不能优雅应对Ray的所有提问：1、测试环境的准确性，失败到底是因为网络的特性导致还是因为用户当前的环境变化导致的...
The OutputPath property is not set for this project
... In my case, building a proj file, the difference between any cpuand anycpu was the issue, but your post helped me see that.
– Joshua Drake
May 9 '17 at 20:55
2
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App Inventor 2 BLE扩展源码分析 - WriteBytes vs WriteStrings 23字节硬编...
一、问题背景
用户反馈：WriteBytes 发送字符串硬件能收到，WriteStrings 发送却收不到。
同样的字符串数据，通过 WriteBytes 方法发送时硬件正常接收，但通过 WriteStrings 方法发送时硬件收不到或收到截断数据。
源码仓库: mit-c...