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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 - ...
...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
图：BPF性能工具及其...
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
...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
图：BPF性能工具及其...
MySQL dump by query
...to just mysqldump all tables.
mysqldump --tables myTable --where="id < 1000"
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Singleton pattern in nodejs - is it needed?
...n and simple.
https://nodejs.org/api/modules.html#modules_caching
(v 6.3.1)
Caching
Modules are cached after the first time they are loaded. This means
(among other things) that every call to require('foo') will get
exactly the same object returned, if it would resolve to the same
f...
return query based on date
...ter a given date:
db.gpsdatas.find({"createdAt" : { $gte : new ISODate("2012-01-12T20:15:31Z") }});
I'm using $gte (greater than or equals), because this is often used for date-only queries, where the time component is 00:00:00.
If you really want to find a date that equals another date, the syn...
Collect successive pairs from a stream
Given a stream such as { 0, 1, 2, 3, 4 } ,
20 Answers
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What is the maven-shade-plugin used for, and why would you want to relocate Java packages?
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Uber JAR, in short, is a JAR containing everything.
Normally in Maven, we rely on dependency ma...
How to retrieve an element from a set without removing it?
...
12 Answers
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