| commit | 3cfe3baaf07c9e40a75f9a70662de56df1c246a8 | |
| author | Ilpo Järvinen <ilpo.jarvinen@helsinki.fi> | |
| Tue, 27 Feb 2007 18:09:49 +0000 (27 10:09 -0800) | ||
| committer | David S. Miller <davem@sunset.davemloft.net> | |
| Thu, 26 Apr 2007 05:23:23 +0000 (25 22:23 -0700) | ||
| tree | 989b2aff491b5df3aa0215f611a8c7f1360c67e9 | treesnapshot (tar.gz zip) |
| parent | c5e7af0df5d7234afd8596560d9f570cfc6c18bf | commitdiff |
[TCP]: Add two new spurious RTO responses to FRTO
New sysctl tcp_frto_response is added to select amongst these
responses:
- Rate halving based; reuses CA_CWR state (default)
- Very conservative; used to be the only one available (=1)
- Undo cwr; undoes ssthresh and cwnd reductions (=2)
The response with rate halving requires a new parameter to
tcp_enter_cwr because FRTO has already reduced ssthresh and
doing a second reduction there has to be prevented. In addition,
to keep things nice on 80 cols screen, a local variable was
added.
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi>
Signed-off-by: David S. Miller <davem@davemloft.net>
New sysctl tcp_frto_response is added to select amongst these
responses:
- Rate halving based; reuses CA_CWR state (default)
- Very conservative; used to be the only one available (=1)
- Undo cwr; undoes ssthresh and cwnd reductions (=2)
The response with rate halving requires a new parameter to
tcp_enter_cwr because FRTO has already reduced ssthresh and
doing a second reduction there has to be prevented. In addition,
to keep things nice on 80 cols screen, a local variable was
added.
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi>
Signed-off-by: David S. Miller <davem@davemloft.net>