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| author | Yuchung Cheng <[email protected]> | 2016-09-19 23:39:16 -0400 |
|---|---|---|
| committer | David S. Miller <[email protected]> | 2016-09-21 00:23:00 -0400 |
| commit | eb8329e0a04db0061f714f033b4454326ba147f4 (patch) | |
| tree | 802808773223d2aeac8d207debf6fe66fac31d39 /tools/perf/scripts/python/syscall-counts.py | |
| parent | d7722e8570fc0f1e003cee7cf37694041828918b (diff) | |
tcp: export data delivery rate
This commit export two new fields in struct tcp_info:
tcpi_delivery_rate: The most recent goodput, as measured by
tcp_rate_gen(). If the socket is limited by the sending
application (e.g., no data to send), it reports the highest
measurement instead of the most recent. The unit is bytes per
second (like other rate fields in tcp_info).
tcpi_delivery_rate_app_limited: A boolean indicating if the goodput
was measured when the socket's throughput was limited by the
sending application.
This delivery rate information can be useful for applications that
want to know the current throughput the TCP connection is seeing,
e.g. adaptive bitrate video streaming. It can also be very useful for
debugging or troubleshooting.
Signed-off-by: Van Jacobson <[email protected]>
Signed-off-by: Neal Cardwell <[email protected]>
Signed-off-by: Yuchung Cheng <[email protected]>
Signed-off-by: Nandita Dukkipati <[email protected]>
Signed-off-by: Eric Dumazet <[email protected]>
Signed-off-by: Soheil Hassas Yeganeh <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/syscall-counts.py')
0 files changed, 0 insertions, 0 deletions