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SystemTap 笔记 (14)—— Tracing user-space程序需要安装debug-info包

Posted by nanxiao on 十一月 30, 2015 in SystemTap 笔记 |

SystemTap追踪user-space程序时需要安装user-space程序的debug-info包。举个 […]

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Linux kernel 笔记 (58)——ioctl

Posted by nanxiao on 十一月 30, 2015 in Linux kernel 笔记 |

ioctl系统调用的函数原型: int ioctl(int fd, unsigned long cmd, .. […]

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Haskell笔记 (3)—— list和tuple

Posted by nanxiao on 十一月 30, 2015 in Haskell笔记 |

(1) Because strings are lists, we can use list function […]

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Linux kernel 笔记 (57)——hardware interrtupt不能访问userspace

Posted by nanxiao on 十一月 30, 2015 in Linux kernel 笔记 |

以下摘自plka: 系统调用(system call)可以访问userspace,而硬件中断(hardware […]

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Linux kernel 笔记 (56)——init进程

Posted by nanxiao on 十一月 30, 2015 in Linux kernel 笔记 |

以下摘自plka: Linux employs a hierarchical scheme in which […]

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希望国内出版社多引进英文技术原版书

Posted by nanxiao on 十一月 29, 2015 in 技术 |

目前国内出版社引进的英文技术原版书太少了,大多数还是出版一些国人翻译的版本。我不知道直接引进原版书和找人翻译在 […]

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Linux kernel 笔记 (55)——抢占(Preemption)

Posted by nanxiao on 十一月 27, 2015 in Linux kernel 笔记 |

在Linux下,一个task运行在user-mode时,是总可以被抢占的(preemptible):kerne […]

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为什么单CPU没有“memory reorder”问题?

Posted by nanxiao on 十一月 27, 2015 in 技术 |

这篇文章提到单核系统上不会有“memory reorder”问题: Two threads being tim […]

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Linux kernel 笔记 (54)——如何选择“spinlock”或“mutex”

Posted by nanxiao on 十一月 26, 2015 in Linux kernel 笔记 |

ELDD中提到如何选择spinlock和mutex: If the critical section need […]

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SystemTap 笔记 (13)—— Statistical aggregate

Posted by nanxiao on 十一月 26, 2015 in SystemTap 笔记 |

Statistical aggregate主要用来统计一组数据。它使用“<<< value” […]

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