ehmry/genode
ehmry
/
genode
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

libports: adjust lwip's TCP_SND_BUF size 

The old values were much too small and the current ones are probably to
large but the TCP send throuhgput has increased noticeable (a few MiB/s
on the Pandaboard).

Fixes #343.
This commit is contained in:
Josef Söntgen 2012-08-27 16:58:51 +02:00 committed by Norman Feske
parent bff86ab74d
commit f7dd8aa688
2 changed files with 11 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
libports/include/lwip/lwipopts.h
View File

@ -31,6 +31,9 @@
#define LWIP_NETIF_API 1 /* Network interface API */ #define LWIP_NETIF_API 1 /* Network interface API */
#define LWIP_NETIF_LOOPBACK 1 /* Looping back to same address? */ #define LWIP_NETIF_LOOPBACK 1 /* Looping back to same address? */
#define LWIP_HAVE_LOOPIF 1 /* 127.0.0.1 support ? */ #define LWIP_HAVE_LOOPIF 1 /* 127.0.0.1 support ? */
#define LWIP_STATS 0 /* disable stating */
#define LWIP_RCVBUF 1 /* enable SO_RCVBUF */
#define SO_REUSE 1 /* enable SO_REUSE */
#if LWIP_DHCP #if LWIP_DHCP
#define LWIP_NETIF_STATUS_CALLBACK 1 /* callback function used by DHCP init */ #define LWIP_NETIF_STATUS_CALLBACK 1 /* callback function used by DHCP init */
@ -47,7 +50,13 @@
#define TCPIP_MBOX_SIZE 128 #define TCPIP_MBOX_SIZE 128
#define TCP_MSS 1460 #define TCP_MSS 1460
#define TCP_SND_BUF (2 * TCP_MSS) #define TCP_WND (32 * TCP_MSS)
#define TCP_SND_BUF (128 * TCP_MSS)
#define TCP_SND_QUEUELEN ((32 * (TCP_SND_BUF) + (TCP_MSS - 1))/(TCP_MSS))
#define RECV_BUFSIZE_DEFAULT 2147483647 /* this is actually INT_MAX, default value */
#define PBUF_POOL_SIZE 32
/* /*
* We reduce the maximum segment lifetime from one minute to one second to * We reduce the maximum segment lifetime from one minute to one second to

2
libports/lib/mk/lwip.mk
View File

@ -27,7 +27,7 @@ SRC_C += etharp.c
LIBS = thread cxx alarm signal libc timed_semaphore LIBS = thread cxx alarm signal libc timed_semaphore
D_OPTS = ERRNO SO_REUSE LWIP_SO_RCVBUF RECV_BUFSIZE_DEFAULT=8192 D_OPTS = ERRNO
D_OPTS := $(addprefix -D,$(D_OPTS)) D_OPTS := $(addprefix -D,$(D_OPTS))
CC_DEF += $(D_OPTS) CC_DEF += $(D_OPTS)