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MongoDB与内存 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术

...: shell> ulimit -a | grep memory 多数操作系统缺省都是把它设置成unlimited,如果你操作系统不是,可以这样修改: shell> ulimit -m unlimited shell> ulimit -v unlimited 注:ulimit使用是有上下文,最好放在MongoDB启动脚本里。 有...
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MongoDB与内存 - 大数据 & AI - 清泛网移动版 - 专注C/C++及内核技术

...: shell> ulimit -a | grep memory 多数操作系统缺省都是把它设置成unlimited,如果你操作系统不是,可以这样修改: shell> ulimit -m unlimited shell> ulimit -v unlimited 注:ulimit使用是有上下文,最好放在MongoDB启动脚本里。 有...
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CentOS系统下如何挂载第2块磁盘 - 更多技术 - 清泛网 - 专注C/C++及内核技术

... 4)选择分区个数 只分1个分区 直接输入1 接下来设置柱面,默认即可 5)写入分区表 输入w,分区结束 分区结束后,查看/dev目录 #ls -l /dev 可以看到刚刚生成新分区sdb1 3、格式化分区 将新分区格式...
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Formula to determine brightness of RGB color

...d of formula or algorithm to determine the brightness of a color given the RGB values. I know it can't be as simple as adding the RGB values together and having higher sums be brighter, but I'm kind of at a loss as to where to start. ...
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TCP 那些事儿(上) - 更多技术 - 清泛网 - 专注C/C++及内核技术

...在TCP状态图中,从TIME_WAIT状态到CLOSED状态,有一个超时设置,这个超时设置是 2*MSL(RFC793定义了MSL为2分钟,Linux设置成了30s)为什么要这有TIME_WAIT?为什么不直接给转成CLOSED状态呢?主要有两个原因:1)TIME_WAIT确保有足够...
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MFC SetCursor设置手型鼠标光标 - C/C++ - 清泛网 - 专注C/C++及内核技术

MFC SetCursor设置手型鼠标光标设置手型鼠标光标,部分代码如下:void CxxxDlg::OnMouseMove(UINT nFlags, CPoint point){__super::OnMouseMove(nFlags, point);int...设置手型鼠标光标,部分代码如下: void CxxxDlg::OnMouseMove(UINT nFlags, CPoint point) { __super::O...
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How do I enter RGB values into Interface Builder?

How can I enter RGB or Hex color values for backgrounds in Interface Builder? I can select predefined colors but I would like to manually enter in RGB values. Where can I do this? ...
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Why rgb and not cmy? [closed]

...itors and almost all the GUI components out there use red, green and blue (RGB)? (If I'm not mistaken, printers use the CMYK model.) ...
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MFC 去掉控件边框 - C/C++ - 清泛网 - 专注C/C++及内核技术

MFC 去掉控件边框1、属性中可以设置话,设置其Border属性为None。2、ClientEdge导致边框:m_Grid.ModifyStyleEx(WS_EX_CLIENTEDGE, NULL);(注:Modify...1、属性中可以设置话,设置其Border属性为None。 2、ClientEdge导致边框:m_Grid.ModifySty...
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how to convert an RGB image to numpy array?

I have an RGB image. I want to convert it to numpy array. I did the following 12 Answers ...