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| author | Randall Stewart <rrs@FreeBSD.org> | 2021-10-01 14:32:30 +0000 |
|---|---|---|
| committer | Randall Stewart <rrs@FreeBSD.org> | 2021-10-01 14:36:27 +0000 |
| commit | a36230f75e0ae5090e4ef47393536255b436cca6 (patch) | |
| tree | 679452e0fa26f10d6aa436d6fa0db1d50ed6e0a7 /sys/netinet/in_fib_algo.c | |
| parent | 5b40c0aa73c57e51f07386835237debdea805418 (diff) | |
| download | src-a36230f75e0ae5090e4ef47393536255b436cca6.tar.gz src-a36230f75e0ae5090e4ef47393536255b436cca6.zip | |
tcp: Make dsack stats available in netstat and also make sure its aware of TLP's.
DSACK accounting has been for quite some time under a NETFLIX_STATS ifdef. Statistics
on DSACKs however are very useful in figuring out how much bad retransmissions you
are doing. This is further complicated, however, by stacks that do TLP. A TLP
when discovering a lost ack in the reverse path will cause the generation
of a DSACK. For this situation we introduce a new dsack-tlp-bytes as well
as the more traditional dsack-bytes and dsack-packets. These will now
all display in netstat -p tcp -s. This also updates all stacks that
are currently built to keep track of these stats.
Reviewed by: tuexen
Sponsored by: Netflix Inc.
Differential Revision: https://reviews.freebsd.org/D32158
Diffstat (limited to 'sys/netinet/in_fib_algo.c')
0 files changed, 0 insertions, 0 deletions