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Date:      Fri, 24 Apr 2009 12:24:02 -0300
From:      =?ISO-8859-1?Q?Daniel_Dias_Gon=E7alves?= <ddg@yan.com.br>
To:        Steve Bertrand <steve@ibctech.ca>
Cc:        freebsd-ipfw@freebsd.org
Subject:   Re: IPFW MAX RULES COUNT PERFORMANCE
Message-ID:  <49F1D992.9000001@yan.com.br>
In-Reply-To: <49F08071.1070905@ibctech.ca>
References:  <49F06985.1000303@yan.com.br> <49F08071.1070905@ibctech.ca>

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The latency in the interface em6 increased an average of 10ms to 200 ~ 300ms
Hardware:
CPU: Intel(R) Xeon(TM) CPU 3.20GHz (3200.13-MHz 686-class CPU)
  Logical CPUs per core: 2
FreeBSD/SMP: Multiprocessor System Detected: 4 CPUs
cpu0: <ACPI CPU> on acpi0
p4tcc0: <CPU Frequency Thermal Control> on cpu0
cpu1: <ACPI CPU> on acpi0
p4tcc1: <CPU Frequency Thermal Control> on cpu1
cpu2: <ACPI CPU> on acpi0
p4tcc2: <CPU Frequency Thermal Control> on cpu2
cpu3: <ACPI CPU> on acpi0
p4tcc3: <CPU Frequency Thermal Control> on cpu3
SMP: AP CPU #1 Launched!
SMP: AP CPU #3 Launched!
SMP: AP CPU #2 Launched!

real memory  = 9663676416 (9216 MB)
avail memory = 8396738560 (8007 MB)

em0: <Intel(R) PRO/1000 Network Connection 6.9.6> port 0x7000-0x703f mem 
0xdfa00000-0xdfa1ffff irq 16 at device 8.0 on pci4
em1: <Intel(R) PRO/1000 Network Connection 6.9.6> port 0x7400-0x743f mem 
0xdfa20000-0xdfa3ffff irq 17 at device 8.1 on pci4
em2: <Intel(R) PRO/1000 Network Connection 6.9.6> port 0x8000-0x803f mem 
0xdfb00000-0xdfb1ffff irq 16 at device 8.0 on pci5
em3: <Intel(R) PRO/1000 Network Connection 6.9.6> port 0x8400-0x843f mem 
0xdfb20000-0xdfb3ffff irq 17 at device 8.1 on pci5
em4: <Intel(R) PRO/1000 Network Connection 6.9.6> port 0x9000-0x903f mem 
0xdfc00000-0xdfc1ffff irq 16 at device 8.0 on pci7
em5: <Intel(R) PRO/1000 Network Connection 6.9.6> port 0x9400-0x943f mem 
0xdfc20000-0xdfc3ffff irq 17 at device 8.1 on pci7
em6: <Intel(R) PRO/1000 Network Connection 6.9.6> port 0xa000-0xa03f mem 
0xdfd00000-0xdfd1ffff irq 16 at device 8.0 on pci8
em7: <Intel(R) PRO/1000 Network Connection 6.9.6> port 0xa400-0xa43f mem 
0xdfd20000-0xdfd3ffff irq 17 at device 8.1 on pci8
fxp0: <Intel 82551 Pro/100 Ethernet> port 0xb000-0xb03f mem 
0xdfe20000-0xdfe20fff,0xdfe00000-0xdfe1ffff irq 16 at device 4.0 on pci14


Steve Bertrand escreveu:
> Daniel Dias Gonçalves wrote:
>   
>> Hi,
>>
>> My system is a FreeBSD 7.1R.
>> When I add rules IPFW COUNT to 254 IPS from my network, one of my
>> interfaces increases the latency, causing large delays in the network,
>> when I delete COUNT rules, everything returns to normal, which can be ?
>>     
>
> How much latency? Can you provide examples of a with and without the
> count rules? What type of hardware are you testing this on?
>
> Steve
>
>
>   




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