Polling For 100 mbps Connections? (Was Re: Freebsd Theme Song)

Ted Mittelstaedt tedm at toybox.placo.com
Sun Dec 18 03:51:32 PST 2005


what does the CPU of the router do when your doing that?

Ted

>-----Original Message-----
>From: owner-freebsd-questions at freebsd.org
>[mailto:owner-freebsd-questions at freebsd.org]On Behalf Of Sasa Stupar
>Sent: Sunday, December 18, 2005 3:00 AM
>To: Ted Mittelstaedt; freebsd-questions at freebsd.org
>Subject: RE: Polling For 100 mbps Connections? (Was Re: Freebsd Theme
>Song)
>
>
>
>
>--On 18. december 2005 2:32 -0800 Ted Mittelstaedt
><tedm at toybox.placo.com>
>wrote:
>
>>
>>
>>> -----Original Message-----
>>> From: owner-freebsd-questions at freebsd.org
>>> [mailto:owner-freebsd-questions at freebsd.org]On Behalf Of Sasa Stupar
>>> Sent: Sunday, December 18, 2005 2:21 AM
>>> To: Ted Mittelstaedt; freebsd-questions at freebsd.org
>>> Subject: RE: Polling For 100 mbps Connections? (Was Re: Freebsd
>>> Theme Song)
>>>
>>>
>>>
>>>
>>> --On 18. december 2005 1:33 -0800 Ted Mittelstaedt
>>> <tedm at toybox.placo.com>
>>> wrote:
>>>
>>>>
>>>>
>>>>> -----Original Message-----
>>>>> From: Sasa Stupar [mailto:sasa at stupar.homelinux.net]
>>>>> Sent: Friday, December 16, 2005 5:25 AM
>>>>> To: Ted Mittelstaedt; danial_thom at yahoo.com; Drew Tomlinson
>>>>> Cc: freebsd-questions at freebsd.org
>>>>> Subject: RE: Polling For 100 mbps Connections? (Was Re: Freebsd
>>>>> Theme Song)
>>>>>
>>>>>
>>>>>
>>>>>
>>>>> --On 16. december 2005 3:36 -0800 Ted Mittelstaedt
>>>>> <tedm at toybox.placo.com>
>>>>> wrote:
>>>>>
>>>>>>
>>>>>>
>>>>>>> -----Original Message-----
>>>>>>> From: Sasa Stupar [mailto:sasa at stupar.homelinux.net]
>>>>>>> Sent: Thursday, December 15, 2005 12:34 AM
>>>>>>> To: Ted Mittelstaedt; danial_thom at yahoo.com; Drew Tomlinson
>>>>>>> Cc: freebsd-questions at freebsd.org
>>>>>>> Subject: RE: Polling For 100 mbps Connections? (Was Re: Freebsd
>>>>>>> Theme Song)
>>>>>>>
>>>>>>>>
>>>>>>>> Ted
>>>>>>>
>>>>>>> Hmmm, here is test with iperf what I have done with and
>>>>> without polling:
>>>>>>> **************
>>>>>>> ------------------------------------------------------------
>>>>>>> Client connecting to 192.168.1.200, TCP port 5001
>>>>>>> TCP window size: 8.00 KByte (default)
>>>>>>> ------------------------------------------------------------
>>>>>>> [1816] local 192.168.10.249 port 1088 connected with
>>>>>>> 192.168.1.200 port 5001
>>>>>>> [ ID] Interval       Transfer     Bandwidth
>>>>>>> [1816]  0.0-10.0 sec   108 MBytes  90.1 Mbits/sec
>>>>>>>
>>>>>>> This is when I use Device polling option on m0n0.
>>>>>>>
>>>>>>> If I disable this option then my transfer is worse:
>>>>>>> ------------------------------------------------------------
>>>>>>> Client connecting to 192.168.1.200, TCP port 5001
>>>>>>> TCP window size: 8.00 KByte (default)
>>>>>>> ------------------------------------------------------------
>>>>>>> [1816] local 192.168.10.249 port 1086 connected with
>>>>>>> 192.168.1.200 port 5001
>>>>>>> [ ID] Interval       Transfer     Bandwidth
>>>>>>> [1816]  0.0-10.0 sec  69.7 MBytes  58.4 Mbits/sec
>>>>>>> ***************
>>>>>>>
>>>>>>> BTW: my router is m0n0wall (FBSD 4.11).
>>>>>>>
>>>>>>
>>>>>> what are the cpu speeds and operating systems of all devices
>>>>>> in the packet path, what is the make and model of switchs in
>>>>>> use, provide dmesg output of the bsd box, a network diagram
>>>>>> of the setup, etc. etc. etc.
>>>>>>
>>>>>> The above test results are not replicatable and thus, worthless.
>>>>>> Useful test results would allow a reader to build an exact
>>>>>> duplicate of your setup, config it identically, and get identical
>>>>>> results.
>>>>>>
>>>>>> Ted
>>>>>>
>>>>>
>>>>> OK. The server (192.168.1.200) is FreeBSD 5.4 with Duron 900
>>> and 3C905C
>>>>
>>>> The 3com 3c905 is not a very good card under FreeBSD the driver was
>>>> written
>>>> without support from 3com and is shakey on a lot of
>hardware.  I would
>>>> say
>>>> there's a big question that your server is actually saturating the
>>>> ethernet.
>>>> Probably that is why your only getting 90Mbt.
>>>>
>>>>> NIC; router is m0n0wall (FreeBSD 4.11) with three Intel
>>>>> Pro/100S Nics and
>>>>> Celeron 433; The user computer (192.168.10.249) is Celeron 2400
>>>>> with winxp
>>>>> and integrated NIC Realtek 8139 series. Switch is CNET CNSH-1600.
>>>>>
>>>>
>>>> Once again, the winxp+realtek 8139 is not a particularly
>>> steller combo,
>>>> I would question that this system could saturate the
>ethernet, either.
>>>>
>>>>> Diagram: <http://me.homelinux.net/network.pdf>
>>>>>
>>>>> dmesg from the router:
>>>>> ----------------
>>>>> $ dmesg
>>>>> Copyright (c) 1992-2005 The FreeBSD Project.
>>>>> Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991,
>>> 1992, 1993, 1994
>>>>> The Regents of the University of California. All rights reserved.
>>>>> FreeBSD 4.11-RELEASE-p11 #0: Wed Sep  7 13:49:09 CEST 2005
>>>>>    root at fb411.neon1.net:/usr/src/sys/compile/M0N0WALL_GENERIC
>>>>> Timecounter "i8254"  frequency 1193182 Hz
>>>>> CPU: Pentium II/Pentium II Xeon/Celeron (434.32-MHz 686-class CPU)
>>>>>  Origin = "GenuineIntel"  Id = 0x665  Stepping = 5
>>>>>
>>>>> Features=0x183f9ff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,SEP,MTRR,P
>>>>> GE,MCA,CMOV,PAT,PSE36,MMX,FXSR>
>>>>> real memory  = 201326592 (196608K bytes)
>>>>> avail memory = 179142656 (174944K bytes)
>>>>> Preloaded elf kernel "kernel" at 0xc1006000.
>>>>> Preloaded mfs_root "/mfsroot" at 0xc100609c.
>>>>> Pentium Pro MTRR support enabled
>>>>> md0: Preloaded image </mfsroot> 11534336 bytes at 0xc0504d9c
>>>>> md1: Malloc disk
>>>>> Using $PIR table, 8 entries at 0xc00fdef0
>>>>> npx0: <math processor> on motherboard
>>>>> npx0: INT 16 interface
>>>>> pcib0: <Intel 82443BX (440 BX) host to PCI bridge> on motherboard
>>>>> pci0: <PCI bus> on pcib0
>>>>> pcib1: <Intel 82443BX (440 BX) PCI-PCI (AGP) bridge> at device
>>>>> 1.0 on pci0
>>>>> pci1: <PCI bus> on pcib1
>>>>> isab0: <Intel 82371AB PCI to ISA bridge> at device 7.0 on pci0
>>>>> isa0: <ISA bus> on isab0
>>>>> atapci0: <Intel PIIX4 ATA33 controller> port 0xf000-0xf00f at
>>>>> device 7.1 on
>>>>> pci0
>>>>> ata0: at 0x1f0 irq 14 on atapci0
>>>>> ata1: at 0x170 irq 15 on atapci0
>>>>> uhci0: <Intel 82371AB/EB (PIIX4) USB controller> port
>>>>> 0xd000-0xd01f irq 11
>>>>> at device 7.2 on pci0
>>>>> usb0: <Intel 82371AB/EB (PIIX4) USB controller> on uhci0
>>>>> usb0: USB revision 1.0
>>>>> uhub0: Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
>>>>> uhub0: 2 ports with 2 removable, self powered
>>>>> chip1: <Intel 82371AB Power management controller> port
>>>>> 0x5000-0x500f at
>>>>> device 7.3 on pci0
>>>>> pci0: <unknown card> (vendor=0x1274, dev=0x1371) at 8.0 irq 11
>>>>> fxp0: <Intel 82550 Pro/100 Ethernet> port 0xd800-0xd83f mem
>>>>> 0xd0400000-0xd041ffff,0xd0460000-0xd0460fff irq 10 at device
>>>>> 15.0 on pci0
>>>>> fxp0: Ethernet address 00:02:b3:62:f6:06
>>>>> inphy0: <i82555 10/100 media interface> on miibus0
>>>>> inphy0:  10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
>>>>> fxp1: <Intel 82550 Pro/100 Ethernet> port 0xdc00-0xdc3f mem
>>>>> 0xd0420000-0xd043ffff,0xd0462000-0xd0462fff irq 12 at device
>>>>> 16.0 on pci0
>>>>> fxp1: Ethernet address 00:02:b3:9c:2a:16
>>>>> inphy1: <i82555 10/100 media interface> on miibus1
>>>>> inphy1:  10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
>>>>> fxp2: <Intel 82550 Pro/100 Ethernet> port 0xe000-0xe03f mem
>>>>> 0xd0440000-0xd045ffff,0xd0461000-0xd0461fff irq 7 at device
>>> 19.0 on pci0
>>>>> fxp2: Ethernet address 00:02:b3:8c:e4:f6
>>>>> inphy2: <i82555 10/100 media interface> on miibus2
>>>>> inphy2:  10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
>>>>> pmtimer0 on isa0
>>>>> fdc0: <NEC 72065B or clone> at port 0x3f0-0x3f5,0x3f7 irq 6 drq
>>>>> 2 on isa0
>>>>> fdc0: FIFO enabled, 8 bytes threshold
>>>>> fd0: <1440-KB 3.5" drive> on fdc0 drive 0
>>>>> atkbdc0: <Keyboard controller (i8042)> at port 0x60,0x64 on isa0
>>>>> sio0 at port 0x3f8-0x3ff irq 4 flags 0x10 on isa0
>>>>> sio0: type 16550A, console
>>>>> sio1: configured irq 3 not in bitmap of probed irqs 0
>>>>> BRIDGE 020214 loaded
>>>>> IPsec: Initialized Security Association Processing.
>>>>> IP Filter: v3.4.35 initialized.  Default = block all,
>>> Logging = enabled
>>>>> ad0: 3098MB <WDC AC33200L> [6296/16/63] at ata0-master PIO4
>>>>> acd0: CDROM <LITE-ON CD-ROM LTN-527T> at ata1-master PIO4
>>>>> Mounting root from ufs:/dev/md0c
>>>>> fxp1: Microcode loaded, int_delay: 1000 usec  bundle_max: 6
>>>>> fxp0: Microcode loaded, int_delay: 1000 usec  bundle_max: 6
>>>>> fxp2: Microcode loaded, int_delay: 1000 usec  bundle_max: 6
>>>>> ata0: resetting devices .. done
>>>>> -------------
>>>>>
>>>>> If you need more just ask for it. You don't need to be
>angry. Peace.
>>>>>
>>>>
>>>> OK, next question:
>>>>
>>>> ftp transfer like this uses large packets, rerun the test
>with ping -f
>>>> with different ping packet sizes, post the results.
>>>>
>>>> Remember, routers have to deal with many sized packets.
>>>>
>>>> Ted
>>>>
>>>
>>> Interesting. I have tested like you've said and I could ping
>>> with packet
>>> size 1450 bytes. Everything bigger is telling that "packet must be
>>> fragmented but DF is set up". This is of course pinging from winxp to
>>> server.
>>
>> That is normal since under winxp ping sets the DF bit I believe.
>>
>> The larger packets are not what matters, the smaller packets are more
>> interesting.  I find it hard to believe your getting the same
>throughput
>> with
>> flood pinging with 56 byte packets.
>>
>> Ted
>>
>
>Here is the output:
>-------------
>C:\Documents and Settings\nathsasa>ping -t -f -l 56 mig29
>
>Preverjanje dosegljivosti mig29.workgroup [192.168.1.200] z 56 B podatk
>
>Odgovor od 192.168.1.200: bajtov=56 èas < 1 ms TTL=63
>Odgovor od 192.168.1.200: bajtov=56 èas < 1 ms TTL=63
>Odgovor od 192.168.1.200: bajtov=56 èas < 1 ms TTL=63
>Odgovor od 192.168.1.200: bajtov=56 èas < 1 ms TTL=63
>Odgovor od 192.168.1.200: bajtov=56 èas < 1 ms TTL=63
>Odgovor od 192.168.1.200: bajtov=56 èas < 1 ms TTL=63
>Odgovor od 192.168.1.200: bajtov=56 èas < 1 ms TTL=63
>Odgovor od 192.168.1.200: bajtov=56 èas < 1 ms TTL=63
>Odgovor od 192.168.1.200: bajtov=56 èas < 1 ms TTL=63
>Odgovor od 192.168.1.200: bajtov=56 èas < 1 ms TTL=63
>Odgovor od 192.168.1.200: bajtov=56 èas < 1 ms TTL=63
>Odgovor od 192.168.1.200: bajtov=56 èas < 1 ms TTL=63
>Odgovor od 192.168.1.200: bajtov=56 èas < 1 ms TTL=63
>Odgovor od 192.168.1.200: bajtov=56 èas < 1 ms TTL=63
>Odgovor od 192.168.1.200: bajtov=56 èas < 1 ms TTL=63
>Odgovor od 192.168.1.200: bajtov=56 èas < 1 ms TTL=63
>Odgovor od 192.168.1.200: bajtov=56 èas < 1 ms TTL=63
>Odgovor od 192.168.1.200: bajtov=56 èas < 1 ms TTL=63
>Odgovor od 192.168.1.200: bajtov=56 èas < 1 ms TTL=63
>Odgovor od 192.168.1.200: bajtov=56 èas < 1 ms TTL=63
>Odgovor od 192.168.1.200: bajtov=56 èas < 1 ms TTL=63
>Odgovor od 192.168.1.200: bajtov=56 èas < 1 ms TTL=63
>Odgovor od 192.168.1.200: bajtov=56 èas < 1 ms TTL=63
>Odgovor od 192.168.1.200: bajtov=56 èas < 1 ms TTL=63
>Odgovor od 192.168.1.200: bajtov=56 èas < 1 ms TTL=63
>Odgovor od 192.168.1.200: bajtov=56 èas < 1 ms TTL=63
>Odgovor od 192.168.1.200: bajtov=56 èas < 1 ms TTL=63
>Odgovor od 192.168.1.200: bajtov=56 èas < 1 ms TTL=63
>Odgovor od 192.168.1.200: bajtov=56 èas < 1 ms TTL=63
>Odgovor od 192.168.1.200: bajtov=56 èas < 1 ms TTL=63
>Odgovor od 192.168.1.200: bajtov=56 èas < 1 ms TTL=63
>Odgovor od 192.168.1.200: bajtov=56 èas < 1 ms TTL=63
>Odgovor od 192.168.1.200: bajtov=56 èas < 1 ms TTL=63
>Odgovor od 192.168.1.200: bajtov=56 èas < 1 ms TTL=63
>Odgovor od 192.168.1.200: bajtov=56 èas < 1 ms TTL=63
>Odgovor od 192.168.1.200: bajtov=56 èas < 1 ms TTL=63
>Odgovor od 192.168.1.200: bajtov=56 èas < 1 ms TTL=63
>Odgovor od 192.168.1.200: bajtov=56 èas < 1 ms TTL=63
>Odgovor od 192.168.1.200: bajtov=56 èas < 1 ms TTL=63
>Odgovor od 192.168.1.200: bajtov=56 èas < 1 ms TTL=63
>Odgovor od 192.168.1.200: bajtov=56 èas < 1 ms TTL=63
>Odgovor od 192.168.1.200: bajtov=56 èas < 1 ms TTL=63
>Odgovor od 192.168.1.200: bajtov=56 èas < 1 ms TTL=63
>Odgovor od 192.168.1.200: bajtov=56 èas < 1 ms TTL=63
>Odgovor od 192.168.1.200: bajtov=56 èas < 1 ms TTL=63
>Odgovor od 192.168.1.200: bajtov=56 èas < 1 ms TTL=63
>
>Statistika preverjanja dosegljivosti za 192.168.1.200:
>    Paketov: Poslanih = 46, Prejetih = 46, Izgubljenih = 0 (0% izguba),
>Povpreèni èas v milisekundah:
>    Minimum = 0ms, Maksimum = 0ms, Povpreèje = 0ms
>-----------
>
>It's in my native language but the position is the same as in english.
>
>--
>Sasa Stupar
>_______________________________________________
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>
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