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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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Get second child using jQuery
...this... I'd have been more shocked if the tech/perf hadn't changed by this time ;)
– kumarharsh
Jul 27 at 12:21
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PHP prepend leading zero before single digit number, on-the-fly [duplicate]
PHP - Is there a quick, on-the-fly method to test for a single character string, then prepend a leading zero?
3 Answers
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What's the difference between git reset --mixed, --soft, and --hard?
...d is the default option). Once again, master and HEAD point to B, but this time the index is also modified to match B. If we run git commit at this point, nothing will happen since the index matches HEAD. We still have the changes in the working directory, but since they're not in the index, git sta...
Canary release strategy vs. Blue/Green
...rt, so most organizations will plan to use one strategy or the other every time.
So do blue-green deployment if you're committed to practices that allow you to be confident in doing so. Otherwise, send out the canary.
The essence of blue-green is deploying all at once and the essence of canary dep...
Functional style of Java 8's Optional.ifPresent and if-not-Present?
In Java 8, I want to do something to an Optional object if it is present, and do another thing if it is not present.
12 A...
通过 ulimit 改善系统性能 - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术
...统的内键功能，它具有一套参数集，用于为由它生成的 shell 进程及其子进程的资源使用设置限制。本文将在后面的章节中详细说明 ulimit 的功能，使用以及它的影响，并以具体的例子来详细地阐述它在限制资源使用方面的影响。...
When is it appropriate to use UDP instead of TCP? [closed]
...r applications that rely on data being handled in a specific order in real time.
Examples include video streaming and especially VoIP (e.g. Skype). In those instances, however, a dropped packet is not such a big deal: our senses aren't perfect, so we may not even notice. That is why these types of ...
Is it possible to get CMake to build both a static and shared version of the same library?
...d that shared .lib file if you are using your library for ordinary compile time linking.
– Christopher Bruns
Jan 28 '10 at 4:29
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Should struct definitions go in .h or .c file?
I've seen both full definitions of struct s in headers and just declarations—is there any advantage to one method over the other?
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