Latency Numbers Every Programmer Should Know
Unless the programmer is programming at a very low level, the listed events occurring are out of his control. CPU caching is mostly transparent in the ISA, disk seeking is scheduled by the kernel or in storage controllers, file buffers are cached in the kernel, application frameworks also provide layers of caching.For the majority of programmers who want to get their shit done with straightforward code, few dependencies and acceptable performance, this is "interesting to know" but not "should know".