Craig craig
craig
/ gist:5e163e454317620a374c9506fb1a5410
Created
April 1, 2023 13:58
gist measuring tcp retransmits for https://tech.babiel.com/syn-ack-retries-unter-linux-mit-ebpf-messen/
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| #!/usr/bin/env bpftrace | |
| // Dieses Tool zählt Retransmits von TCP SYN/ACK. | |
| // @established_after_retransmits ist ein Histogramm, wie viele Retransmits gesendet wurden, | |
| // bis der TCP-Handshake abgeschlossen war. | |
| #include <linux/tcp.h> | |
| #include <net/tcp_states.h> | |
| tracepoint:sock:inet_sock_set_state { |