Доброго всем времени суток.
Проблема такая: сильно тормозит система (все процессы выполняются очень медленно)

сервак Intel SR4850HW4. один Xeon(TM) CPU 2.60GHz, 4 гига оперативы. Диск SCSI 30G/ Двухканальный контроллер Ultra320 SCSI LSI Logic LSI53C1030. Вроде всё должно летать...

Вот кусок top'а:
"GENERIC_11022008" 292 lines, 10962 characters
# top
last pid:  2604;  load averages:  1.51,  1.42,  1.21                                                                                  up 0+04:59:57  23:20:39
38 processes:  2 running, 36 sleeping
CPU states: 46.3% user,  0.0% nice,  9.7% system,  3.6% interrupt, 40.4% idle
Mem: 21M Active, 276M Inact, 83M Wired, 112M Buf, 1614M Free
Swap: 4096M Total, 4096M Free

  PID USERNAME  THR PRI NICE   SIZE    RES STATE  C   TIME   WCPU COMMAND
2604 root        1 123    0   540K   428K CPU2   0   0:01 81.00% make
2590 root        1 -64    0  2388K  1596K CPU0   2   0:05 12.95% top

сам top съедает 12% процессора. И это ещё не много. Когда он (top) только запускается, он есть окло 40%.

что в системе:

# dmesg
Copyright (c) 1992-2008 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 6.3-RELEASE #0: Wed Jan 16 04:45:45 UTC 2008
    root@dessler.cse.buffalo.edu:/usr/obj/usr/src/sys/SMP
Timecounter "i8254" frequency 1193182 Hz quality 0
CPU: Intel(R) Xeon(TM) CPU 2.60GHz (2596.12-MHz 686-class CPU)
  Origin = "GenuineIntel"  Id = 0xf68  Stepping = 8
  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=0xe43d<SSE3,RSVD2,MON,DS_CPL,VMX,CNXT-ID,CX16,xTPR,PDCM>
  AMD Features=0x20100000<NX,LM>
  AMD Features2=0x1<LAHF>
  Cores per package: 2
  Logical CPUs per core: 2
real memory  = 2142740480 (2043 MB)
avail memory = 2085883904 (1989 MB)
ACPI APIC Table: <INTEL  SHW40M  >
FreeBSD/SMP: Multiprocessor System Detected: 4 CPUs
cpu0 (BSP): APIC ID:  8
cpu1 (AP): APIC ID:  9
cpu2 (AP): APIC ID: 10
cpu3 (AP): APIC ID: 11
ioapic0 <Version 2.0> irqs 0-23 on motherboard
ioapic1 <Version 2.0> irqs 24-47 on motherboard
ioapic2 <Version 2.0> irqs 48-71 on motherboard
ioapic3 <Version 2.0> irqs 72-95 on motherboard
ioapic4 <Version 2.0> irqs 96-119 on motherboard
lapic8: Forcing LINT1 to edge trigger
kbd1 at kbdmux0
ath_hal: 0.9.20.3 (AR5210, AR5211, AR5212, RF5111, RF5112, RF2413, RF5413)
hptrr: HPT RocketRAID controller driver v1.1 (Jan 16 2008 04:43:12)
acpi0: <INTEL SHW40M> on motherboard
acpi0: Power Button (fixed)
unknown: memory range not supported
unknown: memory range not supported
unknown: memory range not supported
Timecounter "ACPI-fast" frequency 3579545 Hz quality 1000
acpi_timer0: <24-bit timer at 3.579545MHz> port 0x408-0x40b on acpi0
acpi_ec0: <Embedded Controller: GPE 0x10> port 0xca6,0xca7 on acpi0
cpu0: <ACPI CPU> on acpi0
cpu1: <ACPI CPU> on acpi0
cpu2: <ACPI CPU> on acpi0
cpu3: <ACPI CPU> on acpi0
pcib0: <ACPI Host-PCI bridge> port 0xcf8-0xcff iomem 0xa0000-0xbffff,0x80000000-0x8fffffff,0xffc00000-0xffdfffff,0xffe00000-0xffffffff on acpi0
pci0: <ACPI PCI bus> on pcib0
pcib1: <ACPI PCI-PCI bridge> at device 1.0 on pci0
pci1: <ACPI PCI bus> on pcib1
pcib2: <ACPI PCI-PCI bridge> at device 2.0 on pci0
pci3: <ACPI PCI bus> on pcib2
pcib3: <ACPI PCI-PCI bridge> at device 3.0 on pci0
pci5: <ACPI PCI bus> on pcib3
pcib4: <ACPI PCI-PCI bridge> at device 4.0 on pci0
pci6: <ACPI PCI bus> on pcib4
pcib5: <ACPI PCI-PCI bridge> at device 5.0 on pci0
pci8: <ACPI PCI bus> on pcib5
pcib6: <ACPI PCI-PCI bridge> at device 6.0 on pci0
pci10: <ACPI PCI bus> on pcib6
pcib7: <ACPI PCI-PCI bridge> mem 0xae400000-0xae400fff irq 47 at device 0.0 on pci10
pci11: <ACPI PCI bus> on pcib7
pcib8: <ACPI PCI-PCI bridge> at device 0.2 on pci10
pci12: <ACPI PCI bus> on pcib8
bge0: <Broadcom BCM5704 B0, ASIC rev. 0x2100> mem 0xac300000-0xac30ffff irq 48 at device 2.0 on pci12
miibus0: <MII bus> on bge0
brgphy0: <BCM5704 10/100/1000baseTX PHY> on miibus0
brgphy0:  10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, 1000baseT, 1000baseT-FDX, auto
bge0: Ethernet address: 00:0e:0c:43:a5:37
bge1: <Broadcom BCM5704 B0, ASIC rev. 0x2100> mem 0xac310000-0xac31ffff irq 49 at device 2.1 on pci12
miibus1: <MII bus> on bge1
brgphy1: <BCM5704 10/100/1000baseTX PHY> on miibus1
brgphy1:  10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, 1000baseT, 1000baseT-FDX, auto
bge1: Ethernet address: 00:0e:0c:43:a5:38
pcib9: <ACPI PCI-PCI bridge> at device 7.0 on pci0
pci14: <ACPI PCI bus> on pcib9
pcib10: <ACPI PCI-PCI bridge> at device 0.0 on pci14
pci15: <ACPI PCI bus> on pcib10
mpt0: <LSILogic 1030 Ultra4 Adapter> port 0x3100-0x31ff mem 0xac100000-0xac10ffff,0xac110000-0xac11ffff irq 72 at device 5.0 on pci15
mpt0: [GIANT-LOCKED]
mpt0: MPI Version=1.2.14.0
mpt1: <LSILogic 1030 Ultra4 Adapter> port 0x3000-0x30ff mem 0xac120000-0xac12ffff,0xac130000-0xac13ffff irq 73 at device 5.1 on pci15
mpt1: [GIANT-LOCKED]
mpt1: MPI Version=1.2.14.0
pcib11: <ACPI PCI-PCI bridge> at device 0.2 on pci14
pci16: <ACPI PCI bus> on pcib11
pci0: <memory, RAM> at device 9.0 (no driver attached)
pci0: <memory, RAM> at device 9.1 (no driver attached)
pci0: <memory, RAM> at device 9.2 (no driver attached)
pci0: <memory, RAM> at device 9.3 (no driver attached)
pci0: <memory, RAM> at device 9.4 (no driver attached)
pci0: <memory, RAM> at device 9.5 (no driver attached)
pci0: <memory, RAM> at device 9.6 (no driver attached)
pci0: <memory, RAM> at device 9.7 (no driver attached)
pci0: <memory, RAM> at device 11.0 (no driver attached)
pci0: <memory, RAM> at device 11.1 (no driver attached)
pci0: <memory, RAM> at device 11.2 (no driver attached)
pci0: <memory, RAM> at device 11.3 (no driver attached)
pci0: <memory, RAM> at device 11.4 (no driver attached)
pci0: <memory, RAM> at device 11.5 (no driver attached)
pci0: <memory, RAM> at device 11.6 (no driver attached)
pci0: <memory, RAM> at device 11.7 (no driver attached)
pci0: <memory, RAM> at device 13.0 (no driver attached)
pci0: <memory, RAM> at device 13.1 (no driver attached)
pci0: <memory, RAM> at device 13.2 (no driver attached)
pci0: <memory, RAM> at device 13.3 (no driver attached)
pci0: <memory, RAM> at device 13.4 (no driver attached)
pci0: <memory, RAM> at device 13.5 (no driver attached)
pci0: <memory, RAM> at device 13.6 (no driver attached)
pci0: <memory, RAM> at device 13.7 (no driver attached)
pci0: <memory, RAM> at device 15.0 (no driver attached)
pci0: <memory, RAM> at device 15.1 (no driver attached)
pci0: <memory, RAM> at device 15.2 (no driver attached)
pci0: <memory, RAM> at device 15.3 (no driver attached)
pci0: <memory, RAM> at device 15.4 (no driver attached)
pci0: <memory, RAM> at device 15.5 (no driver attached)
pci0: <memory, RAM> at device 15.6 (no driver attached)
pci0: <memory, RAM> at device 15.7 (no driver attached)
uhci0: <Intel 82801EB (ICH5) USB controller USB-A> port 0x9060-0x907f irq 16 at device 29.0 on pci0
uhci0: [GIANT-LOCKED]
usb0: <Intel 82801EB (ICH5) USB controller USB-A> 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
uhci1: <Intel 82801EB (ICH5) USB controller USB-B> port 0x9040-0x905f irq 19 at device 29.1 on pci0
uhci1: [GIANT-LOCKED]
usb1: <Intel 82801EB (ICH5) USB controller USB-B> on uhci1
usb1: USB revision 1.0
uhub1: Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub1: 2 ports with 2 removable, self powered
uhci2: <Intel 82801EB (ICH5) USB controller USB-C> port 0x9020-0x903f irq 18 at device 29.2 on pci0
uhci2: [GIANT-LOCKED]
usb2: <Intel 82801EB (ICH5) USB controller USB-C> on uhci2
usb2: USB revision 1.0
uhub2: Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub2: 2 ports with 2 removable, self powered
ehci0: <Intel 82801EB/R (ICH5) USB 2.0 controller> mem 0xb6500000-0xb65003ff irq 23 at device 29.7 on pci0
ehci0: [GIANT-LOCKED]
usb3: EHCI version 1.0
usb3: companion controllers, 2 ports each: usb0 usb1 usb2
usb3: <Intel 82801EB/R (ICH5) USB 2.0 controller> on ehci0
usb3: USB revision 2.0
uhub3: Intel EHCI root hub, class 9/0, rev 2.00/1.00, addr 1
uhub3: 6 ports with 6 removable, self powered
uhub4: vendor 0x0424 product 0x2504, class 9/0, rev 2.00/0.00, addr 2
uhub4: multiple transaction translators
uhub4: 3 ports with 3 removable, self powered
pcib12: <ACPI PCI-PCI bridge> at device 30.0 on pci0
pci17: <ACPI PCI bus> on pcib12
pci17: <display, VGA> at device 0.0 (no driver attached)
isab0: <PCI-ISA bridge> at device 31.0 on pci0
isa0: <ISA bus> on isab0
atapci0: <Intel ICH5 SATA150 controller> port 0x1f0-0x1f7,0x3f6,0x170-0x177,0x376,0x9080-0x908f irq 18 at device 31.2 on pci0
ata0: <ATA channel 0> on atapci0
ata1: <ATA channel 1> on atapci0
pci0: <serial bus, SMBus> at device 31.3 (no driver attached)
sio0: <16550A-compatible COM port> port 0x3f8-0x3ff irq 4 flags 0x10 on acpi0
sio0: type 16550A
sio1: <16550A-compatible COM port> port 0x2f8-0x2ff irq 3 on acpi0
sio1: type 16550A
pmtimer0 on isa0
orm0: <ISA Option ROMs> at iomem 0xc0000-0xcafff,0xcb000-0xcefff on isa0
atkbdc0: <Keyboard controller (i8042)> at port 0x60,0x64 on isa0
atkbd0: <AT Keyboard> irq 1 on atkbdc0
kbd0 at atkbd0
atkbd0: [GIANT-LOCKED]
fdc0: <Enhanced floppy controller> at port 0x3f0-0x3f5,0x3f7 irq 6 drq 2 on isa0
fdc0: [FAST]
ppc0: parallel port not found.
sc0: <System console> at flags 0x100 on isa0
sc0: VGA <16 virtual consoles, flags=0x300>
vga0: <Generic ISA VGA> at port 0x3c0-0x3df iomem 0xa0000-0xbffff on isa0
ukbd0: Logitech HID compliant keyboard, rev 1.10/1.80, addr 2, iclass 3/1
kbd2 at ukbd0
uhid0: Logitech HID compliant keyboard, rev 1.10/1.80, addr 2, iclass 3/1
Timecounters tick every 1.000 msec
hptrr: no controller detected.
Waiting 5 seconds for SCSI devices to settle
acd0: DVDROM <PHILIPS DVD-ROM SDR089/TQ02> at ata0-master UDMA33
ses0 at mpt0 bus 0 target 6 lun 0
ses0: <ESG-SHV SCA HSBP M34 1.07> Fixed Processor SCSI-2 device
ses0: 3.300MB/s transfers
ses0: SAF-TE Compliant Device
da0 at mpt0 bus 0 target 0 lun 0
da0: <SEAGATE ST336607LC 0007> Fixed Direct Access SCSI-3 device
da0: 320.000MB/s transfers (160.000MHz, offset 63, 16bit), Tagged Queueing Enabled
da0: 35003MB (71687372 512 byte sectors: 255H 63S/T 4462C)
da1 at mpt0 bus 0 target 1 lun 0
da1: <SEAGATE ST336607LC 0007> Fixed Direct Access SCSI-3 device
da1: 320.000MB/s transfers (160.000MHz, offset 63, 16bit), Tagged Queueing Enabled
da1: 35003MB (71687372 512 byte sectors: 255H 63S/T 4462C)
lapic11: Forcing LINT1 to edge trigger
SMP: AP CPU #3 Launched!
lapic9: Forcing LINT1 to edge trigger
SMP: AP CPU #1 Launched!
lapic10: Forcing LINT1 to edge trigger
SMP: AP CPU #2 Launched!
Trying to mount root from ufs:/dev/da0s1a
IP Filter: v4.1.28 initialized.  Default = pass all, Logging = enabled
ukbd0: at uhub2 port 1 (addr 2) disconnected
ukbd0: detached
uhid0: at uhub2 port 1 (addr 2) disconnected
uhid0: detached
interrupt storm detected on "irq16:"; throttling interrupt source
interrupt storm detected on "irq16:"; throttling interrupt source
interrupt storm detected on "irq16:"; throttling interrupt source
interrupt storm detected on "irq16:"; throttling interrupt source
interrupt storm detected on "irq16:"; throttling interrupt source
interrupt storm detected on "irq16:"; throttling interrupt source
interrupt storm detected on "irq16:"; throttling interrupt source
interrupt storm detected on "irq16:"; throttling interrupt source

ядро GENERIC SMP, сейчас перекомпилирую его со следующим конфигом, но боюсь до утра не скомпилится:

machine        i386

cpu        I686_CPU

ident        K_11022008

options     SCHED_4BSD        # 4BSD scheduler
options     PREEMPTION        # Enable kernel thread preemption
options     INET            # InterNETworking
options     FFS            # Berkeley Fast Filesystem
options     SOFTUPDATES        # Enable FFS soft updates support
options     UFS_ACL            # Support for access control lists
options     UFS_DIRHASH        # Improve performance on big directories
options     MD_ROOT            # MD is a potential root device
options     NFSCLIENT        # Network Filesystem Client
options     NFSSERVER        # Network Filesystem Server
options     NFS_ROOT        # NFS usable as /, requires NFSCLIENT
options     MSDOSFS            # MSDOS Filesystem
options     CD9660            # ISO 9660 Filesystem
options     PROCFS            # Process filesystem (requires PSEUDOFS)
options     PSEUDOFS        # Pseudo-filesystem framework
options     GEOM_GPT        # GUID Partition Tables.
options     COMPAT_43        # Compatible with BSD 4.3 [KEEP THIS!]
options     COMPAT_FREEBSD4        # Compatible with FreeBSD4
options     COMPAT_FREEBSD5        # Compatible with FreeBSD5
options     SCSI_DELAY=5000        # Delay (in ms) before probing SCSI
options     SYSVSHM            # SYSV-style shared memory
options     SYSVMSG            # SYSV-style message queues
options     SYSVSEM            # SYSV-style semaphores
options     _KPOSIX_PRIORITY_SCHEDULING # POSIX P1003_1B real-time extensions
options     KBD_INSTALL_CDEV    # install a CDEV entry in /dev
options     ADAPTIVE_GIANT        # Giant mutex is adaptive.

device        apic            # I/O APIC

# Bus support.
device        eisa
device        pci

# ATA and ATAPI devices
device        ata
device        atadisk        # ATA disk drives
device        ataraid        # ATA RAID drives
device        atapicd        # ATAPI CDROM drives
device        atapifd        # ATAPI floppy drives
device        atapist        # ATAPI tape drives
options     ATA_STATIC_ID    # Static device numbering

# SCSI Controllers
options     AHC_REG_PRETTY_PRINT    # Print register bitfields in debug
                    # output.  Adds ~128k to driver.
options     AHD_REG_PRETTY_PRINT    # Print register bitfields in debug
                    # output.  Adds ~215k to driver.
device        mpt        # LSI-Logic MPT-Fusion

# SCSI peripherals
device        scbus        # SCSI bus (required for SCSI)
device        da        # Direct Access (disks)
device        ses        # SCSI Environmental Services (and SAF-TE)

# atkbdc0 controls both the keyboard and the PS/2 mouse
device        atkbdc        # AT keyboard controller
device        atkbd        # AT keyboard

device        vga        # VGA video card driver

# syscons is the default console driver, resembling an SCO console
device        sc

device        agp        # support several AGP chipsets

# Power management support (see NOTES for more options)
#device        apm
# Add suspend/resume support for the i8254.
device        pmtimer

# Serial (COM) ports
device        sio        # 8250, 16[45]50 based serial ports

# PCI Ethernet NICs that use the common MII bus controller code.
# NOTE: Be sure to keep the 'device miibus' line in order to use these NICs!
device        miibus        # MII bus support
device        bge        # Broadcom BCM570xx Gigabit Ethernet

# Pseudo devices.
device        loop        # Network loopback
device        random        # Entropy device
device        ether        # Ethernet support
device        sl        # Kernel SLIP
device        ppp        # Kernel PPP
device        tun        # Packet tunnel.
device        pty        # Pseudo-ttys (telnet etc)
device        md        # Memory "disks"
device        gif        # IPv6 and IPv4 tunneling
device        faith        # IPv6-to-IPv4 relaying (translation)

# The `bpf' device enables the Berkeley Packet Filter.
# Be aware of the administrative consequences of enabling this!
# Note that 'bpf' is required for DHCP.
device        bpf        # Berkeley packet filter

# USB support
device        uhci        # UHCI PCI->USB interface
device        ehci        # EHCI PCI->USB interface (USB 2.0)
device        usb        # USB Bus (required)
device        uhid        # "Human Interface Devices"
device        ukbd        # Keyboard

Интересное наблюдение: когда устанавливается FreeBSD 6.2 или 6.3, система не трмозит, копирование файлов с CD-ROM идёт на скорости около 1.5 Мб/с. при первом же запуске система начинает трмозить. Если запустить sysinstall, то при копировании скорость около 30 Kб/c.

Когда устанавливается FreeBSD 7.0 RC-2, то тормозить система начинает с начала загрузки. Даже прорисовывание окошек в sysinstall при установке тормозит.

В Сети видел много похожих проблем, но нигде не видел решения. Может кто наступал на такие грабли? или у кого-то мысли по этому поводу есть?