Date: Wed, 8 Mar 2006 14:52:22 +0200 From: Artis Caune <Artis.Caune@latnet.lv> To: freebsd-net@freebsd.org Subject: if_bridge drops lot of outgoing packets Message-ID: <08D42EF3-773C-41A0-B19C-1B177F4C5A5F@latnet.lv>
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# kldload if_bridge # ifconfig bridge0 create # ifconfig bridge0 addm em0 # ifconfig bridge0 -learn em0 # ifconfig bridge0 span em1 # ifconfig bridge0 up traffic on em0: 30 second output rate 680818000 bits/sec, 152697 packets/sec # netstat -w1 -bd -I em1 input (em1) output packets errs bits packets errs bits colls drops 0 0 0 107332 0 493295560 0 50374 0 0 0 105825 0 484738088 0 53434 0 0 0 109800 0 499006384 0 44857 0 0 0 110054 0 493731344 0 46474 0 0 0 106508 0 486585112 0 54058 0 0 0 105180 0 484695272 0 52910 0 0 0 105304 0 485654248 0 54242 ~ 51% packet loss per second FreeBSD 7.0-CURRENT #0: Fri Feb 24 12:57:50 EET 2006 device = '82546EB Dual Port Gigabit Ethernet Controller' (pcix) VM_KMEM_SIZE_MAX=536870912 (512M) kern.ipc.nmbclusters=100000 dual 2.8GHz xeon 2G RAM POLLING not compiled in changes in if_em.h: #define EM_DEFAULT_TXD EM_MAX_TXD //(4096) #define EM_DEFAULT_RXD EM_MAX_RXD //(4096) #define EM_TIDV 0 #define EM_TADV 0 #define EM_RADV 0 same problem with unmodified if_em/KMEM/clusters
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