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#!/usr/bin/env bpftrace /* * cpuwalk Sample which CPUs are executing processes. * For Linux, uses bpftrace and eBPF. * * USAGE: cpuwalk.bt * * This is a bpftrace version of the DTraceToolkit tool of the same name. * * Copyright 2018 Netflix, Inc. * Licensed under the Apache License, Version 2.0 (the "License") * * 08-Sep-2018 Brendan Gregg Created this. */ BEGIN { printf("Sampling CPU at 99hz... Hit Ctrl-C to end.\n"); } profile:hz:99 /pid/ { @cpu = lhist(cpu, 0, 1000, 1); }