device pooling and high interrupts

From: GiZmen (gizmen_at_blurp.one.pl)
Date: 04/24/04

  • Next message: Dmitry Morozovsky: "Re: device pooling and high interrupts" 
    Date: Sat, 24 Apr 2004 17:00:50 +0200
To: freebsd-hackers@freebsd.org

    Hello,

    I am runnign freebsd 5.2.1 on 386 arch with two rl lan cards. My mainboard
    is on VIA KT 266A with AMD athlon 1.1.
    I read man polling and i have HZ=1000. My problem is that when i set up
    sysctl variable kern.polling.enable=1 my interrupts greatly increase.
    When my system is idle and indicate 0-1% interrupts with out polling.
    and when i turn on polling interrupts goes up to about 20% on idle system.
    Is it normal ? I never before use polling and i dont know that i have
    something bad in my system ?

    Can somebody explain me this ?

    thx 

    -- 
Best Regards:
		GiZmen
UNIX is user-friendly; it's just picky about its friends
UNIX is simple; it just takes a genius to understand its simplicity
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  • Next message: Dmitry Morozovsky: "Re: device pooling and high interrupts"

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