[linux] Disabling IRQ

Juraj Remenec remenec na gmail.com
Čtvrtek Březen 1 07:26:52 CET 2012


Tak uz som troska postupil.
Zistil som, ze mi blbnu uplne vsetky PCI karty. Nech tam dam akekolvek a
akokolvek, tak mi po chvilke vypnu ich IRQ na ktorom lezia, pingy sa zvysia
niekolkonasobne a procesor a tato IRQ maskarada sa presunie na procesor,
vdaka comu je to aj cele pomalsie.

Na druhej strane som si vsimol, ze naopak, vsetky PCIe sietove karty idu
bezproblemov. Kedze som nasiel este jeden volny PCIe slot, tak som hodil
kartu aj tam + pohram sa s VLANami a zredukujem pocet potrebnych PCI kariet
(snad) na NULL.

Uvidime.
J.


2012/2/28 Juraj Remenec <remenec at gmail.com>

> Integrovana karta je prave ta Realtekova (ktoru nemozem menit).
> Posielam vypis lspci spolu s drivermi, ktore boli pouzite.
>
> root ~ # lspci -nnk
> 00:00.0 Host bridge [0600]: Intel Corporation Sandy Bridge DRAM Controller
> [8086:0100] (rev 09)
>         Subsystem: Micro-Star International Co., Ltd. Device [1462:7681]
>
> 00:01.0 PCI bridge [0604]: Intel Corporation Sandy Bridge PCI Express Root
> Port [8086:0101] (rev 09)
>         Kernel driver in use: pcieport
>
> 00:16.0 Communication controller [0780]: Intel Corporation Cougar Point
> HECI Controller #1 [8086:1c3a] (rev 04)
>         Subsystem: Micro-Star International Co., Ltd. Device [1462:7673]
>
> 00:1a.0 USB Controller [0c03]: Intel Corporation Cougar Point USB Enhanced
> Host Controller #2 [8086:1c2d] (rev 05)
>         Subsystem: Micro-Star International Co., Ltd. Device [1462:7673]
>         Kernel driver in use: ehci_hcd
>
> 00:1b.0 Audio device [0403]: Intel Corporation Cougar Point High
> Definition Audio Controller [8086:1c20] (rev 05)
>         Subsystem: Micro-Star International Co., Ltd. Device [1462:7673]
>         Kernel driver in use: HDA Intel
>
> 00:1c.0 PCI bridge [0604]: Intel Corporation Cougar Point PCI Express Root
> Port 1 [8086:1c10] (rev b5)
>         Kernel driver in use: pcieport
>
> 00:1c.2 PCI bridge [0604]: Intel Corporation Cougar Point PCI Express Root
> Port 3 [8086:1c14] (rev b5)
>         Kernel driver in use: pcieport
>
> 00:1c.4 PCI bridge [0604]: Intel Corporation 82801 PCI Bridge [8086:244e]
> (rev b5)
> 00:1c.6 PCI bridge [0604]: Intel Corporation Cougar Point PCI Express Root
> Port 7 [8086:1c1c] (rev b5)
>         Kernel driver in use: pcieport
>
> 00:1d.0 USB Controller [0c03]: Intel Corporation Cougar Point USB Enhanced
> Host Controller #1 [8086:1c26] (rev 05)
>         Subsystem: Micro-Star International Co., Ltd. Device [1462:7673]
>         Kernel driver in use: ehci_hcd
>
> 00:1f.0 ISA bridge [0601]: Intel Corporation Cougar Point LPC Controller
> [8086:1c46] (rev 05)
>         Subsystem: Micro-Star International Co., Ltd. Device [1462:7673]
>
> 00:1f.2 IDE interface [0101]: Intel Corporation Cougar Point 4 port SATA
> IDE Controller [8086:1c00] (rev 05)
>         Subsystem: Micro-Star International Co., Ltd. Device [1462:7673]
>         Kernel driver in use: ata_piix
>
> 00:1f.3 SMBus [0c05]: Intel Corporation Cougar Point SMBus Controller
> [8086:1c22] (rev 05)
>         Subsystem: Micro-Star International Co., Ltd. Device [1462:7673]
>         Kernel driver in use: i801_smbus
>
> 00:1f.5 IDE interface [0101]: Intel Corporation Cougar Point 2 port SATA
> IDE Controller [8086:1c08] (rev 05)
>         Subsystem: Micro-Star International Co., Ltd. Device [1462:7673]
>         Kernel driver in use: ata_piix
>
> 01:00.0 VGA compatible controller [0300]: nVidia Corporation G98 [GeForce
> 8400GS] [10de:10c3] (rev a2)
>         Subsystem: Micro-Star International Co., Ltd. Device [1462:2298]
>         Kernel driver in use: nouveau
>
> 01:00.1 Audio device [0403]: nVidia Corporation High Definition Audio
> Controller [10de:0be3] (rev a1)
>         Subsystem: Micro-Star International Co., Ltd. Device [1462:2298]
>         Kernel driver in use: HDA Intel
>
> 02:00.0 Ethernet controller [0200]: Intel Corporation 82574L Gigabit
> Network Connection [8086:10d3]
>         Subsystem: Intel Corporation Gigabit CT Desktop Adapter [8086:a01f]
>         Kernel driver in use: e1000e
>
> 03:00.0 Ethernet controller [0200]: Intel Corporation 82574L Gigabit
> Network Connection [8086:10d3]
>         Subsystem: Intel Corporation Gigabit CT Desktop Adapter [8086:a01f]
>         Kernel driver in use: e1000e
>
> 04:00.0 PCI bridge [0604]: Device [1b21:1080] (rev 01)
> 05:00.0 Ethernet controller [0200]: Intel Corporation 82541PI Gigabit
> Ethernet Controller [8086:107c] (rev 05)
>         Subsystem: Intel Corporation PRO/1000 GT Desktop Adapter
> [8086:1376]
>         Kernel driver in use: e1000
>
> 05:02.0 Ethernet controller [0200]: Intel Corporation 82541PI Gigabit
> Ethernet Controller [8086:107c] (rev 05)
>         Subsystem: Intel Corporation PRO/1000 GT Desktop Adapter
> [8086:1376]
>         Kernel driver in use: e1000
>
> 06:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd.
> RTL8111/8168B PCI Express Gigabit Ethernet controller [10ec:8168] (rev 06)
>         Subsystem: Micro-Star International Co., Ltd. Device [1462:7673]
>         Kernel driver in use: r8169
>
>
>
>
>
>
> 2012/2/28 Matus UHLAR - fantomas <uhlar at fantomas.sk>
>
>> On 28.02.12 15:08, Juraj Remenec wrote:
>>
>>> Pred tym tam boli Realteky. Teraz su tam Intely (4 ks) a jeden realtek.
>>>
>>
>> a vstavana karta je co, tiez intel? Ake karty a ktory ovladac ich
>> spravuje, e1000?  ten ma v dokumentacii popisany nejaky problem s viacerymi
>> kartami, aj ked sa tyka skor zataze CPU.
>>
>>
>>  Vysledok je stale rovnaky.
>>> A ano, uz sa potvrdilo, ze Disabling IRQ = pomale pingy.
>>> Vraj pomaha kompilacia vlastneho kernelu (asi je v tom standardnom nejaka
>>> featura co to sposobuje) lenze, ked som sa tak dnes kukal do "make
>>> menuconfig" = no,,, blivajz!!!
>>> Naposledy som jadro kompiloval este ked tam vseho-vsudy bolo 5
>>> poloziek...
>>> :-/
>>> Ako mam dnes vediet co vsetko budem/nebudem potrebovat... .
>>>
>>
>> --
>> Matus UHLAR - fantomas, uhlar at fantomas.sk ; http://www.fantomas.sk/
>> Warning: I wish NOT to receive e-mail advertising to this address.
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>> If Barbie is so popular, why do you have to buy her friends?
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>>
>
>
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