The ionice command is used to set I/O scheduling class and priority for a program. The I/O schedule for a program can be changed to the following: The current Disk Scheduler can be viewed from The current scheduler can be changed by Ionice Utility The ionice sets the io scheduling class and priority for a program or script. It supports the following three scheduling classes Setting ionice for a pid ( number 3 specifies the scheduling class) ionice -c3 -p 1004 FAQs 1. What is an I/O scheduler in Linux? An I/O scheduler manages how disk read/write operations are ordered and processed, helping improve system performance and responsiveness. 2. How can I check the current I/O scheduler? You can check …

Phusion Passenger is a free web server and application server with support for Ruby, Python and Node.js. It is designed to integrate into the Apache HTTP Server or the Nginx web server, but also has a mode for running standalone without an external web server. Phusion Passenger supports Unix-like operating systems, and is available as a gem package, as a tarball, or as native Linux packages. Passenger and “Rails server” The Ruby on Rails framework provides a built-in server tool, which can be accessed with the ‘rails server‘ command. The “rails server” is not an application server by itself, but just a small wrapper that launches your application in an application server. This is why people do not use “rails …