> The only reason anyone ever wants to disable disk caching is because they think it takes memory away from their applications, which it doesn't!<p>Wildly disagree!<p>I regularly want to disable disk caching when I want to be able to drop power or disconnect a drive without drive corruption.<p>With smaller “microcontrollers” running linux, their power could drop at any moment. With external drives, I might want to pull the drive the <i>second</i> it’s done transferring a file. Caches get in the way in both cases.