diff options
| author | Gerrit Renker <gerrit@erg.abdn.ac.uk> | 2006-12-10 00:02:12 -0200 |
|---|---|---|
| committer | David S. Miller <davem@sunset.davemloft.net> | 2006-12-11 14:34:42 -0800 |
| commit | 1a21e49a8d60f588c1276f765198b14d5688a778 (patch) | |
| tree | 4b8770be71047437f30da694649719948977b189 /fs/file.c | |
| parent | 179ebc9f92da88e15ea86d7d27308c92712d8ee9 (diff) | |
[DCCP] ccid3: Finer-grained resolution of sending rates
This patch
* resolves a bug where packets smaller than 32/64 bytes resulted in sending rates of 0
* supports all sending rates from 1/64 bytes/second up to 4Gbyte/second
* simplifies the present overflow problems in calculations
Current sending rate X and the cached value X_recv of the receiver-estimated
sending rate are both scaled by 64 (2^6) in order to
* cope with low sending rates (minimally 1 byte/second)
* allow upgrading to use a packets-per-second implementation of CCID 3
* avoid calculation errors due to integer arithmetic cut-off
The patch implements a revised strategy from
http://www.mail-archive.com/dccp@vger.kernel.org/msg01040.html
The only difference with regard to that strategy is that t_ipi is already
used in the calculation of the nofeedback timeout, which saves one division.
Signed-off-by: Gerrit Renker <gerrit@erg.abdn.ac.uk>
Acked-by: Ian McDonald <ian.mcdonald@jandi.co.nz>
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
Diffstat (limited to 'fs/file.c')
0 files changed, 0 insertions, 0 deletions