From owner-freebsd-net  Tue Oct 15 16: 3:58 2002
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Message-ID: <068b01c2749f$32e7cf70$8c2a40c1@PHE>
From: "Petri Helenius" <pete@he.iki.fi>
To: "Lars Eggert" <larse@ISI.EDU>
Cc: <freebsd-net@freebsd.org>
References: <065901c27495$56a94c40$8c2a40c1@PHE> <3DAC8FAD.30601@isi.edu>
Subject: Re: ENOBUFS
Date: Wed, 16 Oct 2002 02:04:11 +0300
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>
> What rate are you sending these packets at? A standard interface queue
> length is 50 packets, you get ENOBUFS when it's full.
>
This might explain the phenomenan. (packets are going out bursty, with average
hovering at ~500Mbps:ish) I recomplied kernel with IFQ_MAXLEN of 5000
but there seems to be no change in the behaviour. How do I make sure that
em-interface is running 66/64 and is there a way to see interface queue depth?
em0: <Intel(R) PRO/1000 Network Connection, Version - 1.3.14> port 0x3040-0x307f
mem 0xfc220000-0xfc23ffff irq 17 at device 3.0 on pci2
em0:  Speed:1000 Mbps  Duplex:Full
pcib2: <PCI to PCI bridge (vendor=8086 device=1460)> at device 29.0 on pci1
IOAPIC #2 intpin 0 -> irq 16
IOAPIC #2 intpin 6 -> irq 17
IOAPIC #2 intpin 7 -> irq 18
pci2: <PCI bus> on pcib2

The OS is 4.7-RELEASE.

Pete



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