STRUCT SYM_HIST(9)

✨ struct sym_hist(9) ✨

Kernel API Manual walkthrough, bestie-style — we're doing this 💅

🌸 NAME 🌸

struct sym_hist — symbol histogram information for an event, fr fr. That's the whole vibe: it's the struct for histogram info tied to an event. 🎀

✨ SYNOPSIS ✨

struct sym_hist {
    u64 nr_samples;
    u64 period;
 };

💖 Members 💖

• nr_samples — Total number of samples. Literally the count, no cap. ✨
• period — Sum of sample periods. All the periods added up together. 🔥

🦋 SEE ALSO 🦋

• Kernel file ./tools/perf/util/annotate.h
• struct cyc_hist(9)
• struct annotated_source(9)
• struct annotated_branch(9)
• struct annotated_op_loc(9)
• struct annotated_insn_loc(9)
• struct annotated_basic_block(9)

And that's the page, bestie 🫶 source/version vibe: ./tools/perf/util · October 2026 · struct sym_hist(9) — mwah 💋