mirror of
https://github.com/xdp-project/bpf-examples.git
synced 2024-05-06 15:54:53 +00:00
27 lines
527 B
Plaintext
27 lines
527 B
Plaintext
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#!/usr/bin/bpftrace
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//BEGIN {
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// printf("Monitor TXQ usage\n");
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// printf(" - Remember: BPF set queue_mapping is one-less here (zero-indexed)\n");
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//}
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tracepoint:net:net_dev_start_xmit {
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$qm = args->queue_mapping;
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$dev = str(args->name, 15);
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@stat_txq_usage[$dev] = lhist($qm, 0,32,1);
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}
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/* Periodically print stats */
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interval:s:3
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{
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printf("\nPeriodic show stats - time: ");
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time();
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print(@stat_txq_usage);
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}
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/* Default bpftrace will print all remaining maps at END */
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//END {
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// printf("END stats:\n");
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//}
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