re(4) slowly dies

From: Aryeh M. Friedman <aryeh.friedman_at_gmail.com>
Date: Fri, 16 Nov 2007 16:55:01 -0500
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If I leave the machine up long enough (even idling) re(4) max.
throughput slowly drops to very small numbers (I have never let it get
to 0 yet so I don't know if that will happen).   Some types of
activity seem to make the decay faster:

   * Long persistent connections (torrents and cvsup)
   * Long running CPU hogs (avi player)
   * Many little pin-prick connections (flipping through web pages
quickly)

   The worst offender of all is gmail chat (instant death).

    I can't tell if anything else slows to a crawl but doesn't seem to.

FreeBSD enviroment:

FreeBSD monster 8.0-CURRENT FreeBSD 8.0-CURRENT #1: Thu Nov 15
19:17:50 EST 2007    
aryeh_at_monster:/usr/obj/FreeBSD/FreeBSD-current/src/sys/MONSTER  amd64

Copyright (c) 1992-2007 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 is a registered trademark of The FreeBSD Foundation.
FreeBSD 8.0-CURRENT #1: Thu Nov 15 19:17:50 EST 2007
    aryeh_at_monster:/usr/obj/FreeBSD/FreeBSD-current/src/sys/MONSTER
Timecounter "i8254" frequency 1193182 Hz quality 0
CPU: Intel(R) Core(TM)2 Duo CPU     E6850  _at_ 3.00GHz (3005.69-MHz
K8-class CPU)
  Origin = "GenuineIntel"  Id = 0x6fb  Stepping = 11
 
Features=0xbfebfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CLFLUSH,DTS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE>
 
Features2=0xe3fd<SSE3,RSVD2,MON,DS_CPL,VMX,SMX,EST,TM2,SSSE3,CX16,xTPR,PDCM>
  AMD Features=0x20000800<SYSCALL,LM>
  AMD Features2=0x1<LAHF>
  Cores per package: 2
usable memory = 4281495552 (4083 MB)
avail memory  = 4127985664 (3936 MB)
ACPI APIC Table: <052107 APIC1013>
FreeBSD/SMP: Multiprocessor System Detected: 2 CPUs
 cpu0 (BSP): APIC ID:  0
 cpu1 (AP): APIC ID:  1
ioapic0 <Version 2.0> irqs 0-23 on motherboard
kbd1 at kbdmux0
ath_hal: 0.9.20.3 (AR5210, AR5211, AR5212, RF5111, RF5112, RF2413, RF5413)
acpi0: <052107 RSDT1013> on motherboard
acpi0: [ITHREAD]
acpi0: Power Button (fixed)
acpi0: reservation of 0, a0000 (3) failed
acpi0: reservation of 100000, dff00000 (3) failed
Timecounter "ACPI-fast" frequency 3579545 Hz quality 1000
acpi_timer0: <24-bit timer at 3.579545MHz> port 0x808-0x80b on acpi0
cpu0: <ACPI CPU> on acpi0
ACPI Warning (tbutils-0243): Incorrect checksum in table [OEMB] -  86,
should be 79 [20070320]
est0: <Enhanced SpeedStep Frequency Control> on cpu0
est: CPU supports Enhanced Speedstep, but is not recognized.
est: cpu_vendor GenuineIntel, msr 92a092a0600092a
device_attach: est0 attach returned 6
p4tcc0: <CPU Frequency Thermal Control> on cpu0
cpu1: <ACPI CPU> on acpi0
est1: <Enhanced SpeedStep Frequency Control> on cpu1
est: CPU supports Enhanced Speedstep, but is not recognized.
est: cpu_vendor GenuineIntel, msr 92a092a0600092a
device_attach: est1 attach returned 6
p4tcc1: <CPU Frequency Thermal Control> on cpu1
pcib0: <ACPI Host-PCI bridge> port 0xcf8-0xcff on acpi0
pci0: <ACPI PCI bus> on pcib0
pcib1: <ACPI PCI-PCI bridge> irq 16 at device 1.0 on pci0
pci1: <ACPI PCI bus> on pcib1
uhci0: <UHCI (generic) USB controller> port 0xcc00-0xcc1f irq 16 at
device 26.0 on pci0
uhci0: [GIANT-LOCKED]
uhci0: [ITHREAD]
usb0: <UHCI (generic) USB controller> on uhci0
usb0: USB revision 1.0
uhub0: <Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1> on usb0
uhub0: 2 ports with 2 removable, self powered
uhci1: <UHCI (generic) USB controller> port 0xc880-0xc89f irq 21 at
device 26.1 on pci0
uhci1: [GIANT-LOCKED]
uhci1: [ITHREAD]
usb1: <UHCI (generic) USB controller> on uhci1
usb1: USB revision 1.0
uhub1: <Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1> on usb1
uhub1: 2 ports with 2 removable, self powered
ehci0: <EHCI (generic) USB 2.0 controller> mem 0xfcdffc00-0xfcdfffff
irq 18 at device 26.7 on pci0
ehci0: [GIANT-LOCKED]
ehci0: [ITHREAD]
usb2: EHCI version 1.0
usb2: companion controllers, 2 ports each: usb0 usb1
usb2: <EHCI (generic) USB 2.0 controller> on ehci0
usb2: USB revision 2.0
uhub2: <Intel EHCI root hub, class 9/0, rev 2.00/1.00, addr 1> on usb2
uhub2: 4 ports with 4 removable, self powered
pcm0: <Intel 82801I High Definition Audio Controller> mem
0xfcdf8000-0xfcdfbfff irq 22 at device 27.0 on pci0
pcm0: [ITHREAD]
pcib2: <ACPI PCI-PCI bridge> irq 17 at device 28.0 on pci0
pci2: <ACPI PCI bus> on pcib2
pcib3: <ACPI PCI-PCI bridge> irq 17 at device 28.4 on pci0
pci3: <ACPI PCI bus> on pcib3
atapci0: <Marvell 88SX6121 SATA300 controller> port
0xdc00-0xdc07,0xd880-0xd883,0xd800-0xd807,0xd480-0xd483,0xd400-0xd40f
mem 0xfceffc00-0xfcefffff irq 16 at device 0.0 on pci3
atapci0: [ITHREAD]
ata2: <ATA channel 0> on atapci0
ata2: [ITHREAD]
pcib4: <ACPI PCI-PCI bridge> irq 16 at device 28.5 on pci0
pci4: <ACPI PCI bus> on pcib4
re0: <RealTek 8168/8111B PCIe Gigabit Ethernet> port 0xe800-0xe8ff mem
0xfcfff000-0xfcffffff irq 17 at device 0.0 on pci4
re0: Using 2 MSI messages
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: 00:19:db:b5:f8:0f
re0: [FILTER]
re0: [FILTER]
uhci2: <UHCI (generic) USB controller> port 0xc800-0xc81f irq 23 at
device 29.0 on pci0
uhci2: [GIANT-LOCKED]
uhci2: [ITHREAD]
usb3: <UHCI (generic) USB controller> on uhci2
usb3: USB revision 1.0
uhub3: <Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1> on usb3
uhub3: 2 ports with 2 removable, self powered
uhci3: <UHCI (generic) USB controller> port 0xc480-0xc49f irq 19 at
device 29.1 on pci0
uhci3: [GIANT-LOCKED]
uhci3: [ITHREAD]
usb4: <UHCI (generic) USB controller> on uhci3
usb4: USB revision 1.0
uhub4: <Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1> on usb4
uhub4: 2 ports with 2 removable, self powered
uhci4: <UHCI (generic) USB controller> port 0xc400-0xc41f irq 18 at
device 29.2 on pci0
uhci4: [GIANT-LOCKED]
uhci4: [ITHREAD]
usb5: <UHCI (generic) USB controller> on uhci4
usb5: USB revision 1.0
uhub5: <Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1> on usb5
uhub5: 2 ports with 2 removable, self powered
uhci5: <UHCI (generic) USB controller> port 0xc080-0xc09f irq 16 at
device 29.3 on pci0
uhci5: [GIANT-LOCKED]
uhci5: [ITHREAD]
usb6: <UHCI (generic) USB controller> on uhci5
usb6: USB revision 1.0
uhub6: <Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1> on usb6
uhub6: 2 ports with 2 removable, self powered
ehci1: <EHCI (generic) USB 2.0 controller> mem 0xfcdff800-0xfcdffbff
irq 23 at device 29.7 on pci0
ehci1: [GIANT-LOCKED]
ehci1: [ITHREAD]
usb7: EHCI version 1.0
usb7: companion controllers, 2 ports each: usb3 usb4 usb5 usb6
usb7: <EHCI (generic) USB 2.0 controller> on ehci1
usb7: USB revision 2.0
uhub7: <Intel EHCI root hub, class 9/0, rev 2.00/1.00, addr 1> on usb7
uhub7: 8 ports with 8 removable, self powered
pcib5: <ACPI PCI-PCI bridge> at device 30.0 on pci0
pci5: <ACPI PCI bus> on pcib5
vgapci0: <VGA-compatible display> mem
0xfd000000-0xfdffffff,0xf0000000-0xf7ffffff irq 17 at device 1.0 on pci5
isab0: <PCI-ISA bridge> at device 31.0 on pci0
isa0: <ISA bus> on isab0
atapci1: <Intel ICH9 SATA300 controller> port
0xc000-0xc007,0xbc00-0xbc03,0xb880-0xb887,0xb800-0xb803,0xb480-0xb48f,0xb400-0xb40f
irq 19 at device 31.2 on pci0
atapci1: [ITHREAD]
ata3: <ATA channel 0> on atapci1
ata3: [ITHREAD]
ata4: <ATA channel 1> on atapci1
ata4: [ITHREAD]
pci0: <serial bus, SMBus> at device 31.3 (no driver attached)
atapci2: <Intel ICH9 SATA300 controller> port
0xb000-0xb007,0xac00-0xac03,0xa880-0xa887,0xa800-0xa803,0xa480-0xa48f,0xa400-0xa40f
irq 19 at device 31.5 on pci0
atapci2: [ITHREAD]
ata5: <ATA channel 0> on atapci2
ata5: [ITHREAD]
ata6: <ATA channel 1> on atapci2
ata6: [ITHREAD]
acpi_button0: <Power Button> on acpi0
sio0: configured irq 4 not in bitmap of probed irqs 0
sio0: port may not be enabled
sio0: configured irq 4 not in bitmap of probed irqs 0
sio0: port may not be enabled
sio0: <16550A-compatible COM port> port 0x3f8-0x3ff irq 4 flags 0x10
on acpi0
sio0: type 16550A
sio0: [FILTER]
fdc0: <floppy drive controller (FDE)> port 0x3f0-0x3f5,0x3f7 irq 6 drq
2 on acpi0
fdc0: [FILTER]
ppc0: <Parallel port> port 0x378-0x37f irq 7 on acpi0
ppc0: Generic chipset (NIBBLE-only) in COMPATIBLE mode
ppbus0: <Parallel port bus> on ppc0
plip0: <PLIP network interface> on ppbus0
lpt0: <Printer> on ppbus0
lpt0: Interrupt-driven port
ppi0: <Parallel I/O> on ppbus0
ppc0: [GIANT-LOCKED]
ppc0: [ITHREAD]
atkbdc0: <Keyboard controller (i8042)> port 0x60,0x64 irq 1 on acpi0
atkbd0: <AT Keyboard> irq 1 on atkbdc0
kbd0 at atkbd0
atkbd0: [GIANT-LOCKED]
atkbd0: [ITHREAD]
orm0: <ISA Option ROM> at iomem 0xc0000-0xcefff on isa0
sc0: <System console> at flags 0x100 on isa0
sc0: VGA <16 virtual consoles, flags=0x300>
sio1: configured irq 3 not in bitmap of probed irqs 0
sio1: port may not be enabled
vga0: <Generic ISA VGA> at port 0x3c0-0x3df iomem 0xa0000-0xbffff on isa0
ums0: <Microsoft Comfort Optical Mouse 1000, class 0/0, rev 2.00/1.21,
addr 2> on uhub1
ums0: 3 buttons and Z dir.
Timecounters tick every 1.000 msec
ad4: 194481MB <Maxtor 6Y200P0 YAR41BW0> at ata2-master UDMA133
GEOM_LABEL: Label for provider ad4 is ad5: 238475MB <WDC
WD2500JB-22REA0 20.00K20> at ata2-slave UDMA100
ufs/intdisk2.
ad6: 476940MB <Seagate ST3500630AS 3.AAE> at ata3-master SATA300
acd0: DVDR <TSSTcorpCD/DVDW SH-S183L/SB01> at ata4-master SATA150
pcm0: <HDA Codec: Realtek ALC888>
pcm0: <HDA Driver Revision: 20071020_0048>
SMP: AP CPU #1 Launched!


hostb0_at_pci0:0:0:0:      class=0x060000 card=0x73601462 chip=0x29c08086
rev=0x02 hdr=0x00
    vendor     = 'Intel Corporation'
    device     = '(Bearlake) Processor to I/O Controller'
    class      = bridge
    subclass   = HOST-PCI
pcib1_at_pci0:0:1:0:       class=0x060400 card=0x00008086 chip=0x29c18086
rev=0x02 hdr=0x01
    vendor     = 'Intel Corporation'
    device     = '(Bearlake) PCIe Root Port'
    class      = bridge
    subclass   = PCI-PCI
uhci0_at_pci0:0:26:0:      class=0x0c0300 card=0x73601462 chip=0x29378086
rev=0x02 hdr=0x00
    vendor     = 'Intel Corporation'
    device     = '82801IB/IR/IH (ICH9 Family) USB Universal Host
Controller'
    class      = serial bus
    subclass   = USB
uhci1_at_pci0:0:26:1:      class=0x0c0300 card=0x73601462 chip=0x29388086
rev=0x02 hdr=0x00
    vendor     = 'Intel Corporation'
    device     = '82801IB/IR/IH (ICH9 Family) USB Universal Host
Controller'
    class      = serial bus
    subclass   = USB
ehci0_at_pci0:0:26:7:      class=0x0c0320 card=0x73601462 chip=0x293c8086
rev=0x02 hdr=0x00
    vendor     = 'Intel Corporation'
    device     = '82801IB/IR/IH (ICH9 Family) USB2 Enhanced Host
Controller'
    class      = serial bus
    subclass   = USB
pcm0_at_pci0:0:27:0:       class=0x040300 card=0x73601462 chip=0x293e8086
rev=0x02 hdr=0x00
    vendor     = 'Intel Corporation'
    device     = '82801IB/IR/IH (ICH9 Family) HD Audio Controller'
    class      = multimedia
pcib2_at_pci0:0:28:0:      class=0x060400 card=0x73601462 chip=0x29408086
rev=0x02 hdr=0x01
    vendor     = 'Intel Corporation'
    device     = '82801IB/IR/IH (ICH9 Family) PCIe Root Port 1'
    class      = bridge
    subclass   = PCI-PCI
pcib3_at_pci0:0:28:4:      class=0x060400 card=0x73601462 chip=0x29488086
rev=0x02 hdr=0x01
    vendor     = 'Intel Corporation'
    device     = '82801IB/IR/IH (ICH9 Family) PCIe Root Port 5'
    class      = bridge
    subclass   = PCI-PCI
pcib4_at_pci0:0:28:5:      class=0x060400 card=0x73601462 chip=0x294a8086
rev=0x02 hdr=0x01
    vendor     = 'Intel Corporation'
    device     = '82801IB/IR/IH (ICH9 Family) PCIe Root Port 6'
    class      = bridge
    subclass   = PCI-PCI
uhci2_at_pci0:0:29:0:      class=0x0c0300 card=0x73601462 chip=0x29348086
rev=0x02 hdr=0x00
    vendor     = 'Intel Corporation'
    device     = '82801IB/IR/IH (ICH9 Family) USB Universal Host
Controller'
    class      = serial bus
    subclass   = USB
uhci3_at_pci0:0:29:1:      class=0x0c0300 card=0x73601462 chip=0x29358086
rev=0x02 hdr=0x00
    vendor     = 'Intel Corporation'
    device     = '82801IB/IR/IH (ICH9 Family) USB Universal Host
Controller'
    class      = serial bus
    subclass   = USB
uhci4_at_pci0:0:29:2:      class=0x0c0300 card=0x73601462 chip=0x29368086
rev=0x02 hdr=0x00
    vendor     = 'Intel Corporation'
    device     = '82801IB/IR/IH (ICH9 Family) USB Universal Host
Controller'
    class      = serial bus
    subclass   = USB
uhci5_at_pci0:0:29:3:      class=0x0c0300 card=0x73601462 chip=0x29398086
rev=0x02 hdr=0x00
    vendor     = 'Intel Corporation'
    device     = '82801IB/IR/IH (ICH9 Family) USB Universal Host
Controller'
    class      = serial bus
    subclass   = USB
ehci1_at_pci0:0:29:7:      class=0x0c0320 card=0x73601462 chip=0x293a8086
rev=0x02 hdr=0x00
    vendor     = 'Intel Corporation'
    device     = '82801IB/IR/IH (ICH9 Family) USB2 Enhanced Host
Controller'
    class      = serial bus
    subclass   = USB
pcib5_at_pci0:0:30:0:      class=0x060401 card=0x73601462 chip=0x244e8086
rev=0x92 hdr=0x01
    vendor     = 'Intel Corporation'
    device     = '82801 Family (ICH2/3/4/4/5/5/6/7/8/9,63xxESB) Hub
Interface to PCI Bridge'
    class      = bridge
    subclass   = PCI-PCI
isab0_at_pci0:0:31:0:      class=0x060100 card=0x73601462 chip=0x29188086
rev=0x02 hdr=0x00
    vendor     = 'Intel Corporation'
    device     = '82801IB (ICH9) LPC Interface Controller'
    class      = bridge
    subclass   = PCI-ISA
atapci1_at_pci0:0:31:2:    class=0x01018f card=0x73601462 chip=0x29218086
rev=0x02 hdr=0x00
    vendor     = 'Intel Corporation'
    device     = '82801IB/IR/IH (ICH9 Family) 2 port Serial ATA
Storage Controller 1'
    class      = mass storage
    subclass   = ATA
none0_at_pci0:0:31:3:      class=0x0c0500 card=0x73601462 chip=0x29308086
rev=0x02 hdr=0x00
    vendor     = 'Intel Corporation'
    device     = '82801IB/IR/IH (ICH9 Family) SMBus Controller'
    class      = serial bus
    subclass   = SMBus
atapci2_at_pci0:0:31:5:    class=0x010185 card=0x73601462 chip=0x29268086
rev=0x02 hdr=0x00
    vendor     = 'Intel Corporation'
    device     = '82801IB/IR/IH (ICH9 Family) 2 port Serial ATA
Storage Controller 2'
    class      = mass storage
    subclass   = ATA
atapci0_at_pci0:3:0:0:     class=0x01018f card=0x612111ab chip=0x612111ab
rev=0xb1 hdr=0x00
    vendor     = 'Marvell Semiconductor (Was: Galileo Technology Ltd)'
    device     = '6121 SATA2 Controller'
    class      = mass storage
    subclass   = ATA
re0_at_pci0:4:0:0: class=0x020000 card=0x360c1462 chip=0x816810ec
rev=0x01 hdr=0x00
    vendor     = 'Realtek Semiconductor'
    device     = 'RTL8168/8111 PCI-E Gigabit Ethernet NIC'
    class      = network
    subclass   = ethernet
vgapci0_at_pci0:5:1:0:     class=0x030000 card=0xb3093842 chip=0x032210de
rev=0xa1 hdr=0x00
    vendor     = 'Nvidia Corp'
    device     = 'GeForce FX 5200 [NV34.3]'
    class      = display
    subclass   = VGA

System hardware not listed above P35 chipset (IHC9)

Network setup:

    Wired connection to Belkin router--->optonline

    Only other things on the network are my printer (wired) and my
roomates xp box (wireless)




- --
Aryeh M. Friedman
Developer, not business, friendly
http://www.flosoft-systems.com
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Received on Fri Nov 16 2007 - 20:55:13 UTC

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