Date: Fri, 28 Feb 2003 07:57:33 +0100 Subject: Re: tcptrace [OFFTOPIC?] Looking for cheap timestamping... Message-ID: <20030228065733.GA3292@pusa.informat.uv.es> From: uaca@alumni.uv.es
Hi Brent
On Thu, Feb 27, 2003 at 03:42:42PM -0800, brdraney@nersc.gov wrote:
> We also use tcpdump/libpcap with our Gigabit border taps. It turns
> out that you can't really tcpdump at more than about 500Mbps without
> doing some tricks. The best trick is interrupt coalescing but it
> totally destroys the kernel timing of the packets.
>
> It turns out that the syskonnect nic's have a fast timer and we've
> (ok, Craig Leres) hacked the driver and got it to pass the timing
> info up to the kernel.
this sounds great, I'm interested in this modification where I can get it?
Thanks
Ulisses
Debian GNU/Linux: a dream come true
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