Date: Mon, 08 Mar 2004 00:44:48 +0100 From: Julian <der_julian@web.de> To: Tony Frank <tfrank@optushome.com.au> Cc: current@freebsd.org Subject: Re: fxp0 generating lots of interrupts Message-ID: <86brn8z0gf.fsf@web.de> In-Reply-To: <20040307231859.GA95924@marvin.home.local> (Tony Frank's message of "Mon, 8 Mar 2004 10:18:59 %2B1100") References: <86smgktjzk.fsf@web.de> <20040307231859.GA95924@marvin.home.local>
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Tony Frank <tfrank@optushome.com.au> writes: > Hi there, > > On Sun, Mar 07, 2004 at 10:39:27PM +0100, Julian wrote: >> I just replaced my old network adaptor with another one and noticed >> that vmstat reports lots of interrupts: >> >> vmstat -i | grep fxp >> irq11: fxp0 1532367 394 >> >> Is this "normal"? > > I guess that depends what you consider to be 'lots'? Compared to my old RealTek-based card. > If you are using device polling, then I expect the interrupts to be quite > high. > If you are not using the interface for any network traffic and it is a > quiet network (ie not much broadcast traffic) then I expect the volume > to be high. The 394 was during "activity" of about 10 MBit/s. It's down to 200 at the moment and there is almost no network activity at the moment. > What makes you think you have 'lots' of interupts as opposed to 'normal level' ? I've only compared it to my old card. Perhaps I should not have done this, as the high interrupt frequency does not impact system performance in any noticeable way. Regards, -- Julian Stecklina Key-ID: 0xD65B2AB5 FA38 DCD3 00EC 97B8 6DD8 D7CC 35D8 8D0E D65B 2AB5 "I meant," said Iplsore bitterly, "what is there in this world that makes living worthwhile?" Death thought about it. "CATS," he said eventually, "CATS ARE NICE." - Terry Pratchett, Sourcery
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