Hello, freebsd-net mailing list.
We have server such configurtion:
- 2 quadcore AMD Opteron processors;
- 4 GB RAM;
- NIC Intel Pro/1000 PT, Dual Port Server Adapter.
###
Problem:
in some moments of time, at the growth of the network activity, one of
the processors is fully loaded at 100%.
###
Kernel configuration:
FreeBSD atlantis.bg.net.ua 7.0-STABLE FreeBSD 7.0-STABLE #1: Tue Apr 1
15:06:30 EEST 2008
[EMAIL PROTECTED]:/usr/obj/usr/src/sys/ATLANTIS amd64
/etc/sysctl.conf:
net.inet.tcp.blackhole=2
net.inet.udp.blackhole=1
kern.ipc.somaxconn=16384
net.inet.ip.fastforwarding=1
net.inet.ip.maxfragpackets=2000
net.inet.ip.intr_queue_maxlen=1000
net.inet.ip.dummynet.hash_size=2048
net.inet.tcp.recvspace=65536
net.inet.udp.recvspace=65536
net.inet.raw.recvspace=32768
net.local.stream.recvspace=32768
net.local.dgram.recvspace=32768
net.local.stream.sendspace=32768
net.inet.tcp.sendspace=65536
net.inet.icmp.icmplim=500
dev.em.0.rx_int_delay=500
dev.em.0.tx_int_delay=500
dev.em.0.rx_abs_int_delay=800
dev.em.0.tx_abs_int_delay=800
dev.em.1.rx_int_delay=500
dev.em.1.tx_int_delay=500
dev.em.1.rx_abs_int_delay=800
dev.em.1.tx_abs_int_delay=800
net.link.ether.inet.max_age=600
/boot/loader.conf:
hw.em.rxd=4096
hw.em.txd=4096
/etc/rc.firewall:
82 pipes like theese:
pipe 387 ip from any to 193.227.x.x in recv vlan10
pipe 388 ip from 193.227.x.x to any out xmit vlan10
#
Kernel:
cpu HAMMER
ident ATLANTIS
# To statically compile in device wiring instead of /boot/device.hints
#hints "GENERIC.hints" # Default places to look for
devices.
makeoptions DEBUG=-g# Build kernel with gdb(1) debug
symbols
options SCHED_ULE # 4BSD scheduler
options PREEMPTION # Enable kernel thread preemption
options INET# InterNETworking
#optionsSCTP# Stream Control Transmission
Protocol
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 PROCFS # Process filesystem (requires
PSEUDOFS)
options PSEUDOFS# Pseudo-filesystem framework
options GEOM_PART_GPT # GUID Partition Tables.
options GEOM_LABEL # Provides labelization
options COMPAT_43TTY# BSD 4.3 TTY compat [KEEP THIS!]
options COMPAT_IA32 # Compatible with i386 binaries
options COMPAT_FREEBSD4 # Compatible with FreeBSD4 options
COMPAT_FREEBSD5 # Compatible with FreeBSD5 options
COMPAT_FREEBSD6 # Compatible with FreeBSD6 options KTRACE
# ktrace(1) support
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. options
STOP_NMI# Stop CPUS using NMI instead of IPI
options AUDIT # Security event auditing
# Make an SMP-capable kernel by default
options SMP # Symmetric MultiProcessor Kernel
# Bus support.
device acpi
device pci
# ATA and ATAPI devices
device ata
device atadisk # ATA disk drives
options ATA_STATIC_ID # Static device numbering
# RAID controllers
device twe # 3ware ATA RAID
# 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
device splash # Splash screen and screen saver support
# syscons is the default console driver, resembling an SCO console device
sc
### COM
device sio
# PCI Ethernet NICs.
device em # Intel PRO/1000 adapter Gigabit Ethernet
Card
# 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
device fxp # Intel EtherExpress PRO/100B (82557,
82558)
# Pseudo devices.
device loop# Network loopback
device random # Entropy device
device
