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lwip: align the pbuf on 32 resp. 64 bit addresses

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Minor speed improvements of ~6Mbit. Additionally a ethernet frame fits now
into one memory allocation per pbuf. Beforehand two were allocated - one being
1514 bytes and another one being 2 bytes (monitored by instrumenting copy loop
in libports/src/lib/lwip/platform/nic.cc).
This commit is contained in:
Alexander Boettcher 2013-06-26 16:12:30 +02:00 committed by Stefan Kalkowski
parent 8d9e7d0da2
commit d822b82f5b
1 changed files with 7 additions and 0 deletions
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7
libports/include/lwip/lwipopts.h
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@ -54,6 +54,13 @@
#define MEM_LIBC_MALLOC 1
#define MEMP_MEM_MALLOC 1
#ifdef __x86_64__
#define MEM_ALIGNMENT 8
#else
#define MEM_ALIGNMENT 4
#endif
#define ETH_PAD_SIZE 2
#define DEFAULT_ACCEPTMBOX_SIZE 128
#define TCPIP_MBOX_SIZE 128