Abysmal re(4) performance under 8.1-STABLE (mid-August)

Stefan Bethke stb at lassitu.de
Sat Nov 6 12:25:09 UTC 2010

Am 06.11.2010 um 10:37 schrieb Ulrich Spörlein:

> On this new server, I cannot get more than ~280kByte/s up/downstream out of
> re(4) without any tweaking.
> re0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
>        ether 00:21:85:63:74:34
>        inet6 fe80::221:85ff:fe63:7434%re0 prefixlen 64 scopeid 0x1 
>        inet netmask 0xffffffc0 broadcast
>        nd6 options=3<PERFORMNUD,ACCEPT_RTADV>
>        media: Ethernet autoselect (100baseTX <half-duplex>)
>        status: active


re0 at pci0:1:0:0:	class=0x020000 card=0x82c61043 chip=0x816810ec rev=0x02 hdr=0x00
    vendor     = 'Realtek Semiconductor'
    device     = 'Gigabit Ethernet NIC(NDIS 6.0) (RTL8168/8111/8111c)'
    class      = network
    subclass   = ethernet
re0: <RealTek 8168/8111 B/C/CP/D/DP/E PCIe Gigabit Ethernet> port 0xd800-0xd8ff mem 0xfdfff000-0xfdffffff,0xfdfe0000-0xfdfeffff irq 18 at device 0.0 on pci1
re0: Using 1 MSI messages
re0: Chip rev. 0x3c000000
re0: MAC rev. 0x00400000
miibus0: <MII bus> on re0
rgephy0: <RTL8169S/8110S/8211B media interface> PHY 1 on miibus0
rgephy0:  10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, 1000baseT, 1000baseT-FDX, auto
re0: Ethernet address: 00:26:18:d5:2c:23
re0: [FILTER]

I believe that it was working properly some months ago, but reading Rick's thread over on -current I checked and transfer over NFS seems to be limited to a couple hundred KB as well.


Stefan Bethke <stb at lassitu.de>   Fon +49 151 14070811

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