1
linux/net/dccp/ccids
Gerrit Renker 1a21e49a8d [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>
2006-12-11 14:34:42 -08:00
..
lib [PATCH] slab: remove kmem_cache_t 2006-12-07 08:39:25 -08:00
ccid2.c [DCCP]: Use `unsigned' for packet lengths 2006-12-02 21:31:02 -08:00
ccid2.h [DCCP] ccid2: Allow window to grow larger 2006-12-02 21:30:34 -08:00
ccid3.c [DCCP] ccid3: Finer-grained resolution of sending rates 2006-12-11 14:34:42 -08:00
ccid3.h [DCCP] ccid3: Finer-grained resolution of sending rates 2006-12-11 14:34:42 -08:00
Kconfig [DCCP]: Use higher RTO default for CCID3 2006-12-03 14:50:23 -02:00
Makefile [DCCP] CCID2: Initial CCID2 (TCP-Like) implementation 2006-03-20 17:41:47 -08:00