Hi,
I have a machine under heavy network traffic. Kernel is Centos kernel 2.6.18 SMP 32 bit.
Ethernets are 05:00.0 Ethernet controller: Intel Corporation 80003ES2LAN Gigabit Ethernet Controller (Copper) (rev 01) 05:00.1 Ethernet controller: Intel Corporation 80003ES2LAN Gigabit Ethernet Controller (Copper) (rev 01) 06:01.0 Ethernet controller: Intel Corporation 82541PI Gigabit Ethernet Controller (rev 05) 06:02.0 Ethernet controller: Intel Corporation 82541PI Gigabit Ethernet Controller (rev 05)
The mainboard is with Intel 5000 series chipset Asus board.
When I use 2.6.9 kernel with the same location and traffic I have had no softirq usage. Also in 2.4 Centos 3 machine I have had no softirq usage.
With the same location and traffic I have softirq usage %25: Cpu0 : 2.0%us, 2.0%sy, 0.0%ni, 71.3%id, 0.0%wa, 2.7%hi, 22.0%si, 0.0%st Cpu1 : 1.0%us, 1.3%sy, 0.0%ni, 79.7%id, 0.0%wa, 1.3%hi, 16.6%si, 0.0%st
I have no extra parameters in grub.conf.
Is it a known problem?
What do you suggest?
Regards,
Oguz Yilmaz
# cat /proc/interrupts CPU0 CPU1 0: 12475556 27878448 IO-APIC-edge timer 1: 2 1 IO-APIC-edge i8042 4: 20 15 IO-APIC-edge serial 8: 3 0 IO-APIC-edge rtc 9: 0 0 IO-APIC-level acpi 12: 1 3 IO-APIC-edge i8042 58: 3194 551096 IO-APIC-level ahci 66: 0 0 IO-APIC-level ehci_hcd:usb1, uhci_hcd:usb2, uhci_hcd:usb4 74: 0 0 IO-APIC-level uhci_hcd:usb3, uhci_hcd:usb5 82: 13 20148 IO-APIC-level eth0 98: 49173115 8304 IO-APIC-level eth1 106: 165302876 0 PCI-MSI eth3 114: 20091 188108320 PCI-MSI eth4 169: 61 22012 IO-APIC-level eth2 NMI: 0 0 LOC: 40353900 40353898 ERR: 0 MIS: 0
# cat /proc/stat cpu 109394 94 48981 7357582 21023 59947 475284 0 cpu0 54410 40 25805 3688679 3670 33482 230074 0 cpu1 54984 53 23176 3668902 17353 26465 245210 0 intr 443941445 40367708 3 0 2 35 0 0 0 3 0 0 0 4 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 554483 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 20168 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 49274302 0 0 0 0 0 0 0 165429410 0 0 0 0 0 0 0 188273249 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 22080 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 ctxt 35284048 btime 1231271275 processes 292966 procs_running 1 procs_blocked 0
# vmstat procs -----------memory---------- ---swap-- -----io---- --system-- -----cpu------ r b swpd free buff cache si so bi bo in cs us sy id wa st 0 0 0 3220064 163084 412172 0 0 5 29 183 438 1 7 91 0 0