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OpenSuSE 安装dtrace - 操作系统(内核) - 清泛网移动版 - 专注C/C++及内核技术

OpenSuSE 安装dtraceOpenSuSE-dtrace-install官网:https: software opensuse org搜索 dtrace,选择:找到指定的版本ymp文件,这里以15 1为例:OCICLI https: software opensuse org ymp home:Dead_Mozay:gst openSUSE_Leap_15 1 systemtap-dtrace ymp--End--官网:https://software.opens...
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Linux bcc tools使用总结(持续更新) - 操作系统(内核) - 清泛网移动版 - ...

Linux bcc tools使用总结(持续更新)Linux-bcc-toolsbcc及依赖安装(参考:INSTALL md)。1、execsnoop短时进程追踪工具,抓出短时间内谁在搞事情。使用场景:有些进程运行时间太短(可能是不断崩溃重启),因而使用其他工具无法捕获 ...
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Linux升级OpenSSL的方法 - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术

Linux升级OpenSSL的方法Linux_OpenSSL_upgrade1、先查看openssl版本:openssl version 通用命令,加 -a 参数显示更详细yum info openssl redhat系列的可以用dpkg-query -l & 39;openssl& 39; ubuntu 和debian可 1、先查看openssl版本: openssl version #通用命令...
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解决xrdp登陆一直黑屏的问题:显示通道被占用 - 操作系统(内核) - 清泛网 -...

解决xrdp登陆一直黑屏的问题:显示通道被占用xrdp_Login_Black_screen最近遇到使用xrdp登陆Linux桌面时,一直黑屏的问题,且重启xrdp服务也没有任何效果。经过调查最终发现服务器上除了xrdp外,还安装了vnc远程桌面,两款远程桌面使...
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OpenSuSE 安装bpftrace - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术

OpenSuSE 安装bpftraceOpenSuSE-bpftrace-install1、可以选择源码安装,依赖顺序是:bpftrace <-- bcc <-- llvm clang不过过程难免曲折,可以继续探究或选择二进制包安装。2、先安装bcc及依赖(参考:INSTALL md):zypper s 1、可以选择源码安装,...
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OpenSuSE 安装dtrace - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术

OpenSuSE 安装dtraceOpenSuSE-dtrace-install官网:https: software opensuse org搜索 dtrace,选择:找到指定的版本ymp文件,这里以15 1为例:OCICLI https: software opensuse org ymp home:Dead_Mozay:gst openSUSE_Leap_15 1 systemtap-dtrace ymp--End--官网:https://software.opens...
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Linux bcc tools使用总结(持续更新) - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术

Linux bcc tools使用总结(持续更新)Linux-bcc-toolsbcc及依赖安装(参考:INSTALL md)。1、execsnoop短时进程追踪工具,抓出短时间内谁在搞事情。使用场景:有些进程运行时间太短(可能是不断崩溃重启),因而使用其他工具无法捕获 ...
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Difference between malloc and calloc?

..., while malloc() leaves the memory uninitialized. For large allocations, most calloc implementations under mainstream OSes will get known-zeroed pages from the OS (e.g. via POSIX mmap(MAP_ANONYMOUS) or Windows VirtualAlloc) so it doesn't need to write them in user-space. This is how normal malloc ...
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In Python script, how do I set PYTHONPATH?

... It has been many years since this answer was posted, but I still want to add that if you want to make sure that Python checks the new directory before all of the others when importing, you should put the new directory first in the list, as in sys.path.insert(0, '/path/to...
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Negation in Python

...herefore just replace your ! with not. For your example, do this: if not os.path.exists("/usr/share/sounds/blues") : proc = subprocess.Popen(["mkdir", "/usr/share/sounds/blues"]) proc.wait() For your specific example (as Neil said in the comments), you don't have to use the subprocess ...