Date: Sat, 14 Jan 2012 01:42:07 +0200 From: "Vladislav V. Prodan" <universite@ukr.net> To: pyunyh@gmail.com Cc: net@freebsd.org Subject: Re: Lack of performance re0 (RTL8111/8168B) Message-ID: <4F10C14F.8050408@ukr.net> In-Reply-To: <20120113232718.GC18199@michelle.cdnetworks.com> References: <4F109F79.5090406@ukr.net> <20120113221548.GA18199@michelle.cdnetworks.com> <4F10B1B3.6090908@ukr.net> <20120113232718.GC18199@michelle.cdnetworks.com>
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14.01.2012 1:27, YongHyeon PYUN wrote: > On Sat, Jan 14, 2012 at 12:35:31AM +0200, Vladislav V. Prodan wrote: >> 14.01.2012 0:15, YongHyeon PYUN wrote: >>> On Fri, Jan 13, 2012 at 11:17:45PM +0200, Vladislav V. Prodan wrote: >>>> >>>> Tell me, what a performance in pps a network card RTL8111/8168B? >>>> Can I somehow increase it? >>>> Experimentally, since it begins to fall off 80Kpps: ( >>>> >>> >>> RX performance number will show much better than that but TX is >>> major bottleneck of controller. I tried hard to enhance TX >>> performance for the controller but I'm under the impression that >>> that number would be the maximum(around 90Kpps) and this is also >>> similar number what I got on Linux. >>> Given that re(4) controllers are for non-server grade systems I >>> wouldn't be surprised to see that number. If you need higher pps, >>> choose controllers targeted for servers. Alternatively, low cost >>> controllers from JMicron/Atheros also show decent TX/RX >>> performance numbers. >> >> That's why I would like to get some numerical limitations of the >> controller re (4). >> While there is no way to put a network card from Intel. >> >>> >>>> >>>> Jan 13 18:12:49 XXX kernel: re0: watchdog timeout >>>> Jan 13 18:12:49 XXX kernel: re0: link state changed to DOWN >>>> Jan 13 18:12:53 XXX kernel: re0: link state changed to UP >>>> >>> >>> I'm more concerned on watchdog timeouts than performance numbers. >>> Would you show me re(4) related message from dmesg(8) output? >> See dmesg output below. >> >>> And if you know how to reliably trigger the watchdog timeout, would >>> you share with us? >> >> DDoS attack has undergone server and choked these packages: ( > > Sound like hard to reproduce this on my box. I agree. > >> Trafshow showed a peak of 110K pps, but immediately operational watchdog >> timeout. >> I would appreciate help in setting up a network interface, so as long as >> it is not turned off by such scams. >> >>>> >>>> >>>> # uname -a >>>> FreeBSD pvppw.org 9.0-PRERELEASE FreeBSD 9.0-PRERELEASE #1: Mon Dec 5 >>>> 14:56:07 EET 2011 root@XXX:/usr/obj/usr/src/sys/XXX.2 amd64 >>>> >>>> # pciconf -lv | grep -A 4 "re0@" >>>> re0@pci0:2:0:0: class=0x020000 card=0x84321043 chip=0x816810ec rev=0x06 >>>> hdr=0x00 >>>> vendor = 'Realtek Semiconductor Co., Ltd.' >>>> device = 'RTL8111/8168B PCI Express Gigabit Ethernet controller' >>>> class = network >>>> subclass = ethernet >>>> >>> >>> RealTek controllers tend to use the same PCI id for different >>> controllers so pciconf(8) does not help here. re(4) may have shown >>> more details on your controller in dmesg output. >>> >> Jan 13 18:57:03 XXX kernel: re0: <RealTek 8168/8111 B/C/CP/D/DP/E PCIe >> Gigabit Ethernet> port 0xe800-0xe8ff mem >> 0xfcfff000-0xfcffffff,0xfcffffff,0xfcff8000-0xfcffbfff irq 18 at device >> 0.0 on pci2 >> Jan 13 18:57:03 XXX kernel: re0: Using 1 MSI-X message >> Jan 13 18:57:03 XXX kernel: re0: Chip rev. 0x2c800000 >> Jan 13 18:57:03 XXX kernel: re0: MAC rev. 0x00000000 >> Jan 13 18:57:03 XXX kernel: miibus0: <MII bus> on re0 >> Jan 13 18:57:03 XXX kernel: rgephy0: <RTL8169S/8110S/8211 1000BASE-T >> media interface> PHY 1 on miibus0 >> Jan 13 18:57:03 XXX kernel: rgephy0: none, 10baseT, 10baseT-FDX, >> 10baseT-FDX-flow, 100baseTX, 100baseTX-FDX, 100baseTX-FDX-flow, >> 1000baseT, 1000baseT-master, 1000baseT-FDX, 1000baseT-FDX-master, >> 1000baseT-FDX-flow, 1000baseT-FDX-flow-master, auto, auto-flow >> Jan 13 18:57:03 XXX kernel: re0: Ethernet address: 14:da:e9:75:5f:ee >> > > Thanks, your controller is RTL8168E-VL. > Could you try attached patch? The patch also contains unrelated > one for the issue but it wouldn't hurt either. The patch can be applied no earlier than Tuesday, when comes the new Intel NIC. -- Vladislav V. Prodan System & Network Administrator http://support.od.ua +380 67 4584408, +380 99 4060508 VVP88-RIPE
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