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LR性能指标解释 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...和ApplicationVerifier。监控C/C++程序是否存在内存泄漏，基于windows环境。
性能分析
可按以下顺序：
中间件瓶颈（apache/jboss参数配置、数据库参数配置）->
应用服务的debug log ->
应用服务的filter log ->
本应用的性能瓶颈（SQL语句...
rbenv not changing ruby version
... add the line to your profile so it runs each time you open a new terminal window:
$ echo 'eval "$(rbenv init -)"' >> ~/.bash_profile
There are other ways to modify the path, feel free to substitute any of them instead of running the rbenv init.
NOTE: reinstall Rails with:
$ gem install rails...
AWS Difference between a snapshot and AMI
...e created from existing snapshots of the root device for Linux but not for Windows.
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Check if an image is loaded (no errors) with jQuery
.../questions/26927575/why-use-imagesloaded-javascript-library-versus-jquerys-window-load
imagesloaded javascript library: what is the browser & device support?
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Which is faster : if (bool) or if(int)?
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With GCC 4.5 on Linux and Windows at least, sizeof(bool) == 1. On x86 and x86_64, you can't pass in less than an general purpose register's worth to a function (whether via the stack or a register depending on the calling convention etc...).
So the c...
What is the difference between HTTP_HOST and SERVER_NAME in PHP?
...couple of years ago, I blew some dust from my current XAMPP environment on Windows XP (Apache HTTPD 2.2.1 with PHP 5.2.8), started it, created a PHP page which prints the both values, created a Java test application using URLConnection to modify the Host header and tests taught me that this is indee...
How to pass the -D System properties while testing on Eclipse?
I am developing on Eclipse on Windows and Code gets deployed on Unix. I am fetching the system property values using System.getProperty("key") ... How do I pass this in Eclipse so that I do not have to modify the code and it works on Eclipse for debugging?
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What is the pythonic way to detect the last element in a 'for' loop?
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You can use a sliding window over the input data to get a peek at the next value and use a sentinel to detect the last value. This works on any iterable, so you don't need to know the length beforehand. The pairwise implementation is from itertool...
IntelliJ IDEA jump from interface to implementing class in Java
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If you did Command (Mac) / Ctrl (Windows) + Mouse click on method you want to navigate to You will be navigated to interface (Declaration)
but If you did Alt + Ctrl + Mouse click on method you want to navigate to You will be navigated to class (Implementa...
How to change line width in IntelliJ (from 120 character)
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IntelliJ IDEA 2016.2.1 Ultimate on Windows is the same.
– Do Nhu Vy
Aug 25 '16 at 6:36
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