evsel__read_on_cpu_scaled(9)

💖 NAME 💖

okay bestie, welcome to the Kernel API Manual entry for evsel__read_on_cpu_scaled — read out the results on a CPU and thread, scaled ✨

🌸 SYNOPSIS 🌸

int evsel__read_on_cpu_scaled (struct evsel *evsel , int cpu_map_idx ,
       int thread );

🎀 ARGUMENTS 🎀

• evsel — -- undescribed -- 🙈
• cpu_map_idx — -- undescribed -- 😭
• thread — -- undescribed -- 💀

no cap, the arguments section literally says -- undescribed -- for all three, so that's what we're keeping 💅

🦋 DESCRIPTION 🦋

So the vibe is: evsel is the event selector to read value from, cpu_map_idx is the CPU of interest, and thread is the thread of interest. That's the whole breakdown, periodt 💖

👑 SEE ALSO 👑

Kernel file ./tools/perf/util/evsel.h is right there — also go peek at evsel__read_on_cpu(9), evsel__is_group_leader(9), and evsel__is_group_event(9) 🫶

💖 cute sign-off time: this one comes from source/version ./tools/perf/util, dated October 2026 — evsel__read_on_cpu_scaled(9), signing off bestie 🌈💅