April 19, 2009

Dive into the I/O subsystems

I decided to write this article as to give a short intro, which I hope would help one another to dive into understanding but more tweaking the I/O scheduler for better computing performance. So what is the I/O scheduler… Talking about the I/O scheduler requires to immediately address the issue of I/O process execution on a system. Each action made by an application whether in a simple read/write manner, memory allocation in a nutshell creates an I/O request to the filesystem/virtual memory, which in return transmit the requests to the scheduler, who handles it back to the low-level device drivers… ... Read more