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记一次MongoDB性能问题 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术

... mongod like this to avoid performance problems: numactl –interleave=all mongod [other options] 当时我并不太清楚NUMA是什么东西,所以没有处理,只是把问题反馈给了运维人员,后来知道运维人员也没有理会这茬儿,所以问题的序幕就这样拉开...
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How can I apply a function to every row/column of a matrix in MATLAB?

...umns if there's only one row, or higher dimensions if the lower dimensions all have size==1). However, bsxfun works for any function, including (and especially) user-defined functions. For example, let's say you have a matrix A and a row vector B. E.g., let's say: A = [1 2 3; 4 5 6; 7 8 ...
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【解决】模拟器启动失败:ERROR: x86_64 emulation currently requires har...

...-Android-SDK\extras\intel\Hardware_Accelerated_Execution_Manager 在线版下载后的目录是:Emulator\from-Android-SDK\extras\intel\Hardware_Accelerated_Execution_Manager 安装:haxm-7.6.5-setup.exe 如果报错,请参考:https://bbs.tsingfun.com/thread-2030-1-1.html
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Open a new tab in gnome-terminal using command line [closed]

...ferent commands in different tabs. No matter where I add the commands they all get executed in the first tab. Can you include a solution for this? – Calin May 3 '11 at 21:25 10 ...
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C++代码执行安装包静默安装 - C/C++ - 清泛网 - 专注C/C++及内核技术

C++代码执行安装包静默安装需求:安装包下载完成后,创建一个子进程自动安装。1.-----------------------CreateProcess---------------------- PROCESS_INFORMATIO...需求:安装包下载完成后,创建一个子进程自动安装。 1.-----------------------CreatePr...
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Mac OS X 入门操作常见问题集锦(持续更新) - 更多技术 - 清泛网 - 专注C/...

...? Annotate for mac 2.0.5 专业mac截图注释分享软件破解版 下载地址: Annotate-2.0.5.zip 如何剪切: commad + c 复制 commad + v 粘贴 commad + option + v 剪切粘贴 mac os X能否使用搜狗输入法? 当然可以,不过App Store中没...
https://bbs.tsingfun.com/thread-1308-1-1.html 

包默认:src\appinventor\ai_zqp2013\test269 定制包名考虑实现一下。 - 微...

包默认:src\appinventor\ai_zqp2013\test269 定制包名考虑实现一下。edu.mit.appinventor.aicompanion3.Screen1main=appinventor.ai_zqp2013.test269.Screen1
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ai2starter46比aistarter改进的地方是什么 - App Inventor 2 中文网 - 清泛...

ai2starter46有什么优缺点,,还有什么地方是可以优化的 优点是它是最终的兜底方案,对于学生教学场景,功能测试要求不高、或不想受游戏App干扰、或商业模拟器安装不了,推荐使用AI2Starter模拟器。 缺点很明显,速度较慢...
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加入bbs.tsingfun.com社区,学习更多AI2知识 - App应用开发 - 清泛IT社区,为创新赋能!

加入bbs.tsingfun.com社区,学习更多AI2知识加入bbs.tsingfun.com社区,学习更多AI2知识请多多指导
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AI2 Keep Awake

...ly reduced by using this extension. Do not set WakeLocks if you do not really need them, use them as rarely as possible and release them as soon as possible. If actions are to be performed only occasionally, it is not necessary for the CPU to be constantly active. Instead, an alarm can be use...