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From: Brian Hall <>
Subject: REQ: advice on tuning via-velocity parameters
Date: Thu, 18 Jan 2007 13:04:17 -0700	[thread overview]
Message-ID: <> (raw)

I have a GBe Via Velocity NIC on an Abit AV8 motherboard, with
1GB DDR and a 3700+ CPU, running kernel 2.6.19. When I push a
lot of data via TCP-mounted NFS, I get a lot of these messages
in the system log and the machine is briefly slow to respond:

eth0: excessive work at interrupt.

I am guessing the system becomes slow when it is 'catching up'
with all the interrupts.

There are a lot of parameters associated with the via-velocity
driver. Is there a reference online detailing how to adjust
them, or a more general network-card kernel parameter tuning

I have txcsum_offload enabled.

Copy breakpoint for copy-only-tiny-frames (int)

Number of packets per interrupt services (array of int)

Enable transmit packet checksum offload (array of int)

Enable IP header dword aligned (array of int)

DMA length (array of int)

Receive fifo threshold (array of int)

Number of transmit descriptors (array of int)
Number of receive descriptors (array of int)

Brian Hall

                 reply	other threads:[~2007-01-18 20:34 UTC|newest]

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