Filename: //sbin/bitesize.bt

#!/usr/bin/env bpftrace /* * bitesize Show disk I/O size as a histogram. * For Linux, uses bpftrace and eBPF. * * USAGE: bitesize.bt * * 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") * * 07-Sep-2018 Brendan Gregg Created this. */ BEGIN { printf("Tracing block device I/O... Hit Ctrl-C to end.\n"); } tracepoint:block:block_rq_issue { @[args.comm] = hist(args.bytes); } END { printf("\nI/O size (bytes) histograms by process name:"); }

./Ninja\.