bpftrace MCP Server

#!/usr/bin/env bpftrace /* * runqlat.bt CPU scheduler run queue latency as a histogram. * For Linux, uses bpftrace, eBPF. * * This is a bpftrace version of the bcc tool of the same name. * * Copyright 2018 Netflix, Inc. * Licensed under the Apache License, Version 2.0 (the "License") * * 17-Sep-2018 Brendan Gregg Created this. */ #include <linux/sched.h> BEGIN { printf("Tracing CPU scheduler... Hit Ctrl-C to end.\n"); } tracepoint:sched:sched_wakeup, tracepoint:sched:sched_wakeup_new { @qtime[args.pid] = nsecs; } tracepoint:sched:sched_switch { if (args.prev_state == TASK_RUNNING) { @qtime[args.prev_pid] = nsecs; } $ns = @qtime[args.next_pid]; if ($ns) { @usecs = hist((nsecs - $ns) / 1000); } delete(@qtime[args.next_pid]); } END { clear(@qtime); }