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Strange load averages on 5.3-STABLE - FreeBSD

Hi, This is the output of top: last pid: 771; load averages: 176.65, 770.13, 926.55 up 0+00:03:13 08:11:07 48 processes: 1 running, 47 sleeping CPU states: 0.0% user, 0.0% nice, 0.0% system, 0.0% interrupt, 100% idle Mem: 40M Active, 63M Inact, 45M Wired, 16K Cache, 35M Buf, 99M Free Swap: 487M Total, 487M Free PID USERNAME PRI NICE SIZE RES STATE TIME WCPU CPU COMMAND 622 mysql 20 0 58104K 28040K kserel 0:01 0.64% 0.63% mysqld 587 root 96 0 16888K 10592K select 0:00 0.00% 0.00% httpd 652 root 96 0 6252K 4536K select 0:00 0.00% 0.00% snmpd [...] Strange ...

  1. #1

    Default Strange load averages on 5.3-STABLE

    Hi,

    This is the output of top:

    last pid: 771; load averages: 176.65, 770.13, 926.55 up 0+00:03:13 08:11:07
    48 processes: 1 running, 47 sleeping
    CPU states: 0.0% user, 0.0% nice, 0.0% system, 0.0% interrupt, 100% idle
    Mem: 40M Active, 63M Inact, 45M Wired, 16K Cache, 35M Buf, 99M Free
    Swap: 487M Total, 487M Free

    PID USERNAME PRI NICE SIZE RES STATE TIME WCPU CPU COMMAND
    622 mysql 20 0 58104K 28040K kserel 0:01 0.64% 0.63% mysqld
    587 root 96 0 16888K 10592K select 0:00 0.00% 0.00% httpd
    652 root 96 0 6252K 4536K select 0:00 0.00% 0.00% snmpd
    [...]


    Strange uh ? The system seems normal besides that. I only saw that
    because sendmail stopped aceppting connections because of the "high load".

    FreeBSD 5.3-STABLE #6: Mon Feb 14 09:32:36 BRST 2005

    --
    Giovanni


    PS.: Please CC: me.
    Giovanni Guest

  2. #2

    Default Re: Strange load averages on 5.3-STABLE

    On Thu, 10 Mar 2005 08:13:53 -0300
    "Giovanni P. Tirloni" <org> wrote:
     

    Your may have compiled kernel and userland from different sources.
    " and programs like ps(1) and top(1) will fail to work until the kernel and source code versions are the same." from the handbook is what comes to my mind.

    Michael
    Michael Guest

  3. #3

    Default Re: Strange load averages on 5.3-STABLE

    On Thu, 10 Mar 2005, Michael Ross wrote: 
    > Your may have compiled kernel and userland from different sources.
    > " and programs like ps(1) and top(1) will fail to work until the kernel and source code versions are the same." from the handbook is what comes to my mind.[/ref]

    I've also seen ridiculously-high load numbers when NFS-mounted filesystems
    are inaccessible. Usually that degrades system performance, though.

    --
    David Fleck
    com

    David Guest

  4. #4

    Default Re: Strange load averages on 5.3-STABLE

    David Fleck wrote: 
    >> Your may have compiled kernel and userland from different sources.
    >> " and programs like ps(1) and top(1) will fail to work until the
    >> kernel and source code versions are the same." from the handbook is
    >> what comes to my mind.[/ref][/ref]

    I've compiled from the same source.
     

    It's strange because everything is working fine and I don't use NFS on
    it. For example, the load hits 900 and suddenly it's 3.

    --
    Giovanni
    Giovanni Guest

  5. #5

    Default Re[2]: Strange load averages on 5.3-STABLE

    please show us
    1. cat /var/run/dmesg.boot
    2. uname -a
    3. egrep "(^REVISION|^BRANCH)" /usr/src/sys/conf/newvers.sh

    GPT> David Fleck wrote: [/ref][/ref]

    GPT> I've compiled from the same source.
     [/ref]

    GPT> It's strange because everything is working fine and I don't use NFS on
    GPT> it. For example, the load hits 900 and suddenly it's 3.






    Dmitry Guest

  6. #6

    Default Re: Strange load averages on 5.3-STABLE

    Dmitry Kozhevnikov wrote:
     [/ref]
    >
    >GPT> I've compiled from the same source.
    > [/ref]
    >performance, [/ref]
    >
    >GPT> It's strange because everything is working fine and I don't use
    >NFS on
    >GPT> it. For example, the load hits 900 and suddenly it's 3.[/ref]


    # uname -a
    FreeBSD srv-02.bs2.local 5.3-STABLE FreeBSD 5.3-STABLE #6: Mon Feb 14
    09:32:36 BRST 2005
    local:/usr/obj/usr/src/sys/SRV-02-LOCAL i386


    # egrep "(^REVISION|^BRANCH)" /usr/src/sys/conf/newvers.sh
    REVISION="5.3"
    BRANCH="STABLE"


    # cat /var/run/dmesg.boot

    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 5.3-STABLE #6: Mon Feb 14 09:32:36 BRST 2005
    local:/usr/obj/usr/src/sys/SRV-02-LOCAL
    ACPI APIC Table: <IntelR AWRDACPI>
    Timecounter "i8254" frequency 1193182 Hz quality 0
    CPU: Intel(R) Pentium(R) 4 CPU 2.26GHz (2261.01-MHz 686-class CPU)
    Origin = "GenuineIntel" Id = 0xf25 Stepping = 5

    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>
    real memory = 268369920 (255 MB)
    avail memory = 257159168 (245 MB)
    ioapic0 <Version 2.0> irqs 0-23 on motherboard
    netsmb_dev: loaded
    npx0: [FAST]
    npx0: <math processor> on motherboard
    npx0: INT 16 interface
    acpi0: <IntelR AWRDACPI> on motherboard
    acpi0: Power Button (fixed)
    Timecounter "ACPI-fast" frequency 3579545 Hz quality 1000
    acpi_timer0: <24-bit timer at 3.579545MHz> port 0x408-0x40b on acpi0
    cpu0: <ACPI CPU> on acpi0
    acpi_button0: <Power Button> on acpi0
    acpi_button1: <Sleep Button> on acpi0
    pcib0: <ACPI Host-PCI bridge> port 0xcf8-0xcff on acpi0
    pci0: <ACPI PCI bus> on pcib0
    agp0: <Intel 82865 host to AGP bridge> mem 0xf0000000-0xf7ffffff at
    device 0.0 on pci0
    pcib1: <PCI-PCI bridge> at device 1.0 on pci0
    pci1: <PCI bus> on pcib1
    pci1: <display, VGA> at device 0.0 (no driver attached)
    pcib2: <ACPI PCI-PCI bridge> at device 30.0 on pci0
    pci2: <ACPI PCI bus> on pcib2
    rl0: <RealTek 8139 10/100BaseTX> port 0xb000-0xb0ff mem
    0xfa000000-0xfa0000ff irq 20 at device 2.0 on pci2
    miibus0: <MII bus> on rl0
    rlphy0: <RealTek internal media interface> on miibus0
    rlphy0: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
    rl0: Ethernet address: 00:e0:7d:d7:e0:5f
    rl1: <RealTek 8139 10/100BaseTX> port 0xb400-0xb4ff mem
    0xfa001000-0xfa0010ff irq 23 at device 9.0 on pci2
    miibus1: <MII bus> on rl1
    rlphy1: <RealTek internal media interface> on miibus1
    rlphy1: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
    rl1: Ethernet address: 00:0d:87:47:56:a0
    isab0: <PCI-ISA bridge> at device 31.0 on pci0
    isa0: <ISA bus> on isab0
    atapci0: <Intel ICH5 UDMA100 controller> port
    0xf000-0xf00f,0x376,0x170-0x177,0x3f6,0x1f0-0x1f7 at device 31.1 on pci0
    ata0: channel #0 on atapci0
    ata1: channel #1 on atapci0
    pci0: <serial bus, SMBus> at device 31.3 (no driver attached)
    acpi_tz0: <Thermal Zone> on acpi0
    sio0: <16550A-compatible COM port> port 0x3f8-0x3ff irq 4 flags 0x10 on
    acpi0
    sio0: type 16550A
    orm0: <ISA Option ROM> at iomem 0xc0000-0xcffff on isa0
    pmtimer0 on isa0
    atkbdc0: <Keyboard controller (i8042)> at port 0x64,0x60 on isa0
    atkbd0: <AT Keyboard> irq 1 on atkbdc0
    kbd0 at atkbd0
    atkbd0: [GIANT-LOCKED]
    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
    Timecounter "TSC" frequency 2261014504 Hz quality 800
    Timecounters tick every 10.000 msec
    ad0: 38204MB <SAMSUNG SP0411N/TW100-11> [77622/16/63] at ata0-master UDMA100
    ad2: 38166MB <ST340014A/8.01> [77545/16/63] at ata1-master UDMA100
    Mounting root from ufs:/dev/ad0s1a


    --
    Giovanni

    PS.: Please CC me as I'm not on this list.
    Giovanni Guest

  7. #7

    Default Re[2]: Strange load averages on 5.3-STABLE

    Sometimes I get strange effects on 5.3-STABLE too.
    So I use tag=RELENG_5_3 and have no such troubles. Try this, maybe
    sources was broken a little that time?

    GPT> Dmitry Kozhevnikov wrote:
     
    >>
    >>GPT> I've compiled from the same source.
    >> 
    >>performance, 
    >>
    >>GPT> It's strange because everything is working fine and I don't use
    >>NFS on
    >>GPT> it. For example, the load hits 900 and suddenly it's 3.[/ref][/ref]


    GPT> # uname -a
    GPT> FreeBSD srv-02.bs2.local 5.3-STABLE FreeBSD 5.3-STABLE #6: Mon Feb 14
    GPT> 09:32:36 BRST 2005
    GPT> local:/usr/obj/usr/src/sys/SRV-02-LOCAL i386


    GPT> # egrep "(^REVISION|^BRANCH)" /usr/src/sys/conf/newvers.sh
    GPT> REVISION="5.3"
    GPT> BRANCH="STABLE"


    GPT> # cat /var/run/dmesg.boot

    GPT> Copyright (c) 1992-2005 The FreeBSD Project.
    GPT> Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994
    GPT> The Regents of the University of California. All rights reserved.
    GPT> FreeBSD 5.3-STABLE #6: Mon Feb 14 09:32:36 BRST 2005
    GPT> local:/usr/obj/usr/src/sys/SRV-02-LOCAL
    GPT> ACPI APIC Table: <IntelR AWRDACPI>
    GPT> Timecounter "i8254" frequency 1193182 Hz quality 0
    GPT> CPU: Intel(R) Pentium(R) 4 CPU 2.26GHz (2261.01-MHz 686-class CPU)
    GPT> Origin = "GenuineIntel" Id = 0xf25 Stepping = 5

    GPT> 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>
    GPT> real memory = 268369920 (255 MB)
    GPT> avail memory = 257159168 (245 MB)
    GPT> ioapic0 <Version 2.0> irqs 0-23 on motherboard
    GPT> netsmb_dev: loaded
    GPT> npx0: [FAST]
    GPT> npx0: <math processor> on motherboard
    GPT> npx0: INT 16 interface
    GPT> acpi0: <IntelR AWRDACPI> on motherboard
    GPT> acpi0: Power Button (fixed)
    GPT> Timecounter "ACPI-fast" frequency 3579545 Hz quality 1000
    GPT> acpi_timer0: <24-bit timer at 3.579545MHz> port 0x408-0x40b on acpi0
    GPT> cpu0: <ACPI CPU> on acpi0
    GPT> acpi_button0: <Power Button> on acpi0
    GPT> acpi_button1: <Sleep Button> on acpi0
    GPT> pcib0: <ACPI Host-PCI bridge> port 0xcf8-0xcff on acpi0
    GPT> pci0: <ACPI PCI bus> on pcib0
    GPT> agp0: <Intel 82865 host to AGP bridge> mem 0xf0000000-0xf7ffffff at
    GPT> device 0.0 on pci0
    GPT> pcib1: <PCI-PCI bridge> at device 1.0 on pci0
    GPT> pci1: <PCI bus> on pcib1
    GPT> pci1: <display, VGA> at device 0.0 (no driver attached)
    GPT> pcib2: <ACPI PCI-PCI bridge> at device 30.0 on pci0
    GPT> pci2: <ACPI PCI bus> on pcib2
    GPT> rl0: <RealTek 8139 10/100BaseTX> port 0xb000-0xb0ff mem
    GPT> 0xfa000000-0xfa0000ff irq 20 at device 2.0 on pci2
    GPT> miibus0: <MII bus> on rl0
    GPT> rlphy0: <RealTek internal media interface> on miibus0
    GPT> rlphy0: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
    GPT> rl0: Ethernet address: 00:e0:7d:d7:e0:5f
    GPT> rl1: <RealTek 8139 10/100BaseTX> port 0xb400-0xb4ff mem
    GPT> 0xfa001000-0xfa0010ff irq 23 at device 9.0 on pci2
    GPT> miibus1: <MII bus> on rl1
    GPT> rlphy1: <RealTek internal media interface> on miibus1
    GPT> rlphy1: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
    GPT> rl1: Ethernet address: 00:0d:87:47:56:a0
    GPT> isab0: <PCI-ISA bridge> at device 31.0 on pci0
    GPT> isa0: <ISA bus> on isab0
    GPT> atapci0: <Intel ICH5 UDMA100 controller> port
    GPT> 0xf000-0xf00f,0x376,0x170-0x177,0x3f6,0x1f0-0x1f7 at device 31.1 on pci0
    GPT> ata0: channel #0 on atapci0
    GPT> ata1: channel #1 on atapci0
    GPT> pci0: <serial bus, SMBus> at device 31.3 (no driver attached)
    GPT> acpi_tz0: <Thermal Zone> on acpi0
    GPT> sio0: <16550A-compatible COM port> port 0x3f8-0x3ff irq 4 flags 0x10 on
    GPT> acpi0
    GPT> sio0: type 16550A
    GPT> orm0: <ISA Option ROM> at iomem 0xc0000-0xcffff on isa0
    GPT> pmtimer0 on isa0
    GPT> atkbdc0: <Keyboard controller (i8042)> at port 0x64,0x60 on isa0
    GPT> atkbd0: <AT Keyboard> irq 1 on atkbdc0
    GPT> kbd0 at atkbd0
    GPT> atkbd0: [GIANT-LOCKED]
    GPT> sc0: <System console> at flags 0x100 on isa0
    GPT> sc0: VGA <16 virtual consoles, flags=0x300>
    GPT> sio1: configured irq 3 not in bitmap of probed irqs 0
    GPT> sio1: port may not be enabled
    GPT> vga0: <Generic ISA VGA> at port 0x3c0-0x3df iomem 0xa0000-0xbffff on isa0
    GPT> Timecounter "TSC" frequency 2261014504 Hz quality 800
    GPT> Timecounters tick every 10.000 msec
    GPT> ad0: 38204MB <SAMSUNG SP0411N/TW100-11> [77622/16/63] at ata0-master UDMA100
    GPT> ad2: 38166MB <ST340014A/8.01> [77545/16/63] at ata1-master UDMA100
    GPT> Mounting root from ufs:/dev/ad0s1a






    Dmitry Guest

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