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Linux bpftrace学习笔记（持续更新） - 操作系统(内核) - 清泛网移动版 - ...
Linux bpftrace学习笔记（持续更新）Linux-bpftrace-notes图：BPF性能工具及其可见性bpftrace安装请参考：bpftrace-install。1、查看程序在打开哪些文件： bpftrace -e & 39;tracepoint:syscalls:sys_enter_open { printf("%s %s n
图：BPF性能工具及其可见性
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MQTT相关知识研究笔记 - 创客硬件开发 - 清泛IT社区，为创新赋能！
1、开源技术选型：
EMQX：https://github.com/emqx/emqx
Mosquitto：https://github.com/eclipse/mosquitto
Mosquitto 不支持分布式集群，但C/C++写的更高效，200KB内存占用，几乎可以运行在一切平台之上，包括树莓派，可以作为小型的消息网关，...
When do I really need to use atomic instead of bool? [duplicate]
Isn't atomic<bool> redundant because bool is atomic by nature? I don't think it's possible to have a partially modified bool value. When do I really need to use atomic<bool> instead of bool ?
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What are the most useful Intellij IDEA keyboard shortcuts? [closed]
I did a bit of googling hoping to find a post on IDEA shortcuts similar to Jeff's post on Visual Studio shortcuts ( Visual Studio .NET 2003 and 2005 Keyboard Shortcuts ), but didn't really spot anything that helped. Hopefully the answers to this question will fill the void.
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Swift native base class or NSObject
...t some isa swizzling with Swift, and found that it only works when NSObject is a super-class (directly or further up), or by using the '@objc' decoration. Otherwise it will follow a static- and vtable-dispatch style, like C++.
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How can I get a precise time, for example in milliseconds in Objective-C?
Is there an easy way to get a time very precisely?
11 Answers
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Are arrays in PHP copied as value or as reference to new variables, and when passed to functions?
1) When an array is passed as an argument to a method or function, is it passed by reference, or by value?
8 Answers
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How to check if element in groovy array/hash/collection/list?
How do I figure out if an array contains an element?
I thought there might be something like [1, 2, 3].includes(1) which would evaluate as true .
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How to join (merge) data frames (inner, outer, left, right)
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What should every JavaScript programmer know? [closed]
Is there a set of things that every JavaScript programmer should know to be able to say "I know JavaScript"?
30 Answers
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