From: ahtoh@pulnet.ru
To: ALT Linux sysadmin discuss <sysadmins@lists.altlinux.org>
Subject: [Sysadmins] ksoftirq 99% cpu load.
Date: Tue, 14 Oct 2008 13:48:11 +0400
Message-ID: <200810141348.12074.ahtoh@pulnet.ru> (raw)
Привет, всем.
Такая проблема.
ksoftirq/0 сильно грузит процессор.
Грузит его из-за большого кол-ва прерываний от сетевых карт при большой
нагрузке.
Драйвер e1000
ver: 7.2.7-k2-NAPI
Ядро 2.6.18-std-smp-alt12
Процессор 2xDUALCORE XEON 5130 2GHz
Память 4 Gb.
Используется iptables и tc.
Работает 2 интерфейса eth0 и eth1
CPU0 CPU1 CPU2 CPU3
0: 13735138 0 0 0 IO-APIC-edge timer
1: 2393 0 0 0 IO-APIC-edge i8042
6: 3 0 0 0 IO-APIC-edge floppy
8: 1 0 0 0 IO-APIC-edge rtc
9: 1 0 0 0 IO-APIC-level acpi
14: 61 0 0 0 IO-APIC-edge ide0
58: 318597153 0 0 0 PCI-MSI eth0
66: 287621153 0 0 0 PCI-MSI eth1
169: 164881 0 0 0 IO-APIC-level ioc0
NMI: 25267 390 238 241
LOC: 13735941 13736293 13736274 13736102
ERR: 0
MIS: 0
Вопросы:
Как можно уменьшить кол-во прерываний и снизить нагрузку на процессор?
Поможет ли использование только одной сетевой карты вместо двух?
Как узнать работает ли NAPI в драйвере?
Заранее спасиб.
next reply other threads:[~2008-10-14 9:48 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-10-14 9:48 ahtoh [this message]
2008-10-14 10:00 ` Led
2008-10-14 10:28 ` Max Ivanov
2008-10-14 11:06 ` Alex
2008-10-14 12:57 ` ahtoh
2008-10-14 13:35 ` Unsafe.ru
2008-10-14 13:45 ` ahtoh
2008-10-14 13:51 ` Konstantin A. Lepikhov
2008-10-14 14:13 ` ahtoh
2008-10-14 15:51 ` Konstantin A. Lepikhov
2008-10-14 16:21 ` ahtoh
2008-10-14 18:59 ` Led
2008-10-15 4:53 ` ahtoh
2008-10-15 9:50 ` Michael Shigorin
2008-10-15 12:31 ` ahtoh
2008-10-15 12:35 ` Led
2008-10-15 12:44 ` Serge
2008-10-19 14:36 ` Michael Shigorin
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