Solve Flash performance issues in Ubuntu
The linked article describes how to use a Firefox addon "Flash-Aid" to install a better build of Flash and apply some optimizations.
With this I can now properly watch fullscreen HD videos under Ubuntu.
Related cards:
How to solve Selenium focus issues
Selenium cannot reliably control a browser when its window is not in focus, or when you accidentally interact with the browser frame. This will result in flickering tests, which are "randomly" red and green. In fact, this behavior is not random at...
Rails: Fixing the memory leak / performance issues in prepend_view_path
Recently we detected a memory leak in one of our applications. Hunting it down, we found that the memory leak was located in Rails' #prepend_view_path. It occurs when the instance method prepend_view_path is called in each request, which is a ...
Solve issues with Samsung TV as computer screen
We have a big flat screen TV (Samsung LE46c650l1kxxu) in our conference room. Configuring it properly, we were encountering some issues.
This is a list of issues, providing a solution to each.
No sound with DVI/HDMI and separate audio
Ther...
Using rack-mini-profiler (with Unpoly)
Debugging performance issues in your Rails app can be a tough challenge.
To get more detailed insights consider using the rack-mini-profiler gem.
Setu...
How to employ and run your tests with parallel_tests to speed up test execution
When your cucumber features grow massively over time, the test execution can take a lot of time.
One easy way to speed up your test execution is to use the parallel_tests gem.
It comes along with some ...
Improving browser rendering performance
As the web is being used for more and more tasks, expectations rise. Not only should web pages offer rich interaction, they must be responsive in both size and interaction.
This imposes a paradoxon that needs to be solved by building performing a...
Sun Java JVM/JRE on Ubuntu Linux
Note that you should disable the Java plug-in in your browsers after installation.
Ubuntu >= 12.04
Java 11
sudo a...
Comparing Rails' flash hashes will not respect their internal lists of used entries
Rails flashes (FlashHash) track a list of used keys, which is not respected when comparing flash hashes.
This does not concern you under most circumstances.
Basics
When ActionController picks up a flash object, it will call the #sweep m...
How to use Ubuntu in English, but still show German formats
If you want to have an English Ubuntu UI, but still see dates, money amounts, paper formats, etc. in German formats, you can fine-tune your /etc/default/locale like this:
LANG="en_US.UTF-8"
LC_CTYPE="de_DE.UTF-8"
LC_NUMERIC="de_DE.U...
Installing old versions of mysql2 on Ubuntu 20.04+
On some of our older projects, we use the mysql2 gem. Unfortunately, versions 0.2.x (required for Rails 2.3) and versions 0.3.x (required for Rails 3.2) can no longer be installed on Ubuntu 20.04. Trying this either leads to errors when compiling ...