Posted Apr 26, 2012 21:11 UTC (Thu) by jengelh (subscriber, #33263)
Parent article: O_HOT and O_COLD
>O_HOT files will be placed in low-numbered blocks, while O_COLD files occupy the high-numbered blocks—but only if the filesystem is stored on a rotating device.
That however makes certain assumptions (<- not good) about where low-numbered blocks are stored. Think vinyl :)