CPU chip characteristics matter

> Serious performance work should report grep -E 'cpu family|model name|model|stepping|microcode|cache size|siblings|cpu cores' /proc/cpuinfo, trimmed of redundancies.

There's a better command for that nowadays: `lscpu`. It's much easier than trying to make sense of /proc/cpuinfo (and much more reliable than cpuinfo's unfixable legacy format trying to describe modern CPUs; it incorrectly shows my desktop as having 12MB of L2 when there should be 6, and also omits the L1 and 64MB of L3 entirely).