Anyone that has worked with Rails for any significant amount of time probably knows that Rails performance tends to be tightly coupled to database quer.

[JA]error_highlight: user-friendly error diagnostics / Yusuke Endoh @mametter...

[EN]Ruby programming with types in action / Soutaro Matsumoto @soutaro...

For years, it’s been possible to automate simple tasks on a computer when those tasks have been executed using the command line. This is known as scrip.

The problem is related to Ruby threads and how memory allocation works at low-level. In many cases it’s not a memory leak, but just a memory bloat.Here.