OSTEP Ch. 6 measurement homework: system-call and context-switch cost

Time a null system call and a two-process pipe ping-pong pinned to one CPU, and reason about timer resolution and measurement error.

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The exercise happens on OSTEP homework. Canonical link: https://pages.cs.wisc.edu/~remzi/OSTEP/cpu-mechanisms.pdf. Link check: link responded (5 Oct 2026). Opened from this app 0 times; opening is not counted as an attempt.

Supports: Turns system-call and context-switch costs into numbers you measured; the exercise is described at the end of the chapter PDF.

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