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A simple addition with significant performance implications:

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sicslowpan tags TCP packets with the PACKETBUF_ATTR_PACKET_TYPE_STREAM
flag, which makes the underlying power-saving MAC layer keep the radio
on for some time after transmitting the packet. This allows reply
packets to be processed directly, significantly increasing TCP latency
and throughput.
This commit is contained in:
adamdunkels 2009-11-02 11:58:56 +00:00
parent 0a12f6da77
commit 5aab2eb77d
4 changed files with 133 additions and 34 deletions
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4
core/net/rime/packetbuf.h
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@ -40,7 +40,7 @@
*
* This file is part of the Contiki operating system.
*
* $Id: packetbuf.h,v 1.3 2009/10/19 21:28:11 adamdunkels Exp $
* $Id: packetbuf.h,v 1.4 2009/11/02 11:58:56 adamdunkels Exp $
*/
/**
@ -316,6 +316,8 @@ extern const char *packetbuf_attr_strings[];
#define PACKETBUF_ATTR_PACKET_TYPE_DATA 0
#define PACKETBUF_ATTR_PACKET_TYPE_ACK 1
#define PACKETBUF_ATTR_PACKET_TYPE_STREAM 2
enum {
PACKETBUF_ATTR_NONE,
PACKETBUF_ATTR_CHANNEL,