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TCP Performance tuning of lwIP

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This commit is contained in:
Joseph Henry
2019-02-14 18:40:20 -08:00
parent 8b4921432e
commit 0b287dbcab
1 changed files with 10 additions and 9 deletions
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19
src/lwipopts.h
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@@ -78,7 +78,7 @@
/**
* Used to compute TCP_MSS
*/
#define MTU 1500
#define MTU 2800
/**
* Enable or disable debug, see debug ection near end of file
@@ -1319,7 +1319,7 @@ happening sooner than they should.
* will be TCP_WND >> TCP_RCV_SCALE
*/
#if !defined TCP_WND || defined __DOXYGEN__
#define TCP_WND 0xffff // (4 * TCP_MSS)
#define TCP_WND 0xFFFF // (4 * TCP_MSS)
#endif
/**
@@ -1373,7 +1373,7 @@ happening sooner than they should.
* an upper limit on the MSS advertised by the remote host.
*/
#if !defined TCP_MSS || defined __DOXYGEN__
#define TCP_MSS MTU - 40
#define TCP_MSS (MTU - 40)
#endif
/**
@@ -1394,7 +1394,7 @@ happening sooner than they should.
* To achieve good performance, this should be at least 2 * TCP_MSS.
*/
#if !defined TCP_SND_BUF || defined __DOXYGEN__
#define TCP_SND_BUF 1024 * 32 // (2 * TCP_MSS)
#define TCP_SND_BUF (32 * TCP_MSS)
#endif
/**
@@ -1402,7 +1402,7 @@ happening sooner than they should.
* as much as (2 * TCP_SND_BUF/TCP_MSS) for things to work.
*/
#if !defined TCP_SND_QUEUELEN || defined __DOXYGEN__
#define TCP_SND_QUEUELEN 1024 // ((4 * (TCP_SND_BUF) + (TCP_MSS - 1))/(TCP_MSS))
#define TCP_SND_QUEUELEN (64 * (2 * (TCP_SND_BUF/TCP_MSS))) // 1024 // ((4 * (TCP_SND_BUF) + (TCP_MSS - 1))/(TCP_MSS))
#endif
/**
@@ -1411,7 +1411,8 @@ happening sooner than they should.
* TCP snd_buf for select to return writable (combined with TCP_SNDQUEUELOWAT).
*/
#if !defined TCP_SNDLOWAT || defined __DOXYGEN__
#define TCP_SNDLOWAT LWIP_MIN(LWIP_MAX(((TCP_SND_BUF)/2), (2 * TCP_MSS) + 1), (TCP_SND_BUF) - 1)
#define TCP_SNDLOWAT (0xffff - (4*TCP_MSS) - 1)
//#define TCP_SNDLOWAT LWIP_MIN(LWIP_MAX(((TCP_SND_BUF)/2), (2 * TCP_MSS) + 1), (TCP_SND_BUF) - 1)
#endif
/**
@@ -1549,7 +1550,7 @@ happening sooner than they should.
* send window while having a small receive window only.
*/
#if !defined LWIP_WND_SCALE || defined __DOXYGEN__
#define LWIP_WND_SCALE 0
#define LWIP_WND_SCALE 1
#define TCP_RCV_SCALE 0
#endif
@@ -3333,7 +3334,7 @@ happening sooner than they should.
* @see debugging_levels
*/
#if !defined LWIP_DBG_TYPES_ON || defined __DOXYGEN__
#define LWIP_DBG_TYPES_ON LWIP_DBG_OFF
#define LWIP_DBG_TYPES_ON LWIP_DBG_ON
#endif
/**
@@ -3375,7 +3376,7 @@ happening sooner than they should.
* SOCKETS_DEBUG: Enable debugging in sockets.c.
*/
#if !defined SOCKETS_DEBUG || defined __DOXYGEN__
#define SOCKETS_DEBUG LWIP_DBG_OFF
#define SOCKETS_DEBUG LWIP_DBG_ON
#endif
/**