Messages in this thread | | | Date | Mon, 2 Apr 2007 11:43:19 +1000 | From | CaT <> | Subject | intermittant petabyte usage reported with broadcom nic |
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I take minute by minute snapshots of network traffic by sampling /proc/net/dev and most of the time everything works fine. Occasionally though I get petabyte byte traffic and corresponding packet traffic.
This happens on an AMD64, dual core smp box with Broadcom NetXtreme II nics. The issue happens with both nics but at different times. The same sampling code runs on p4 boxes with ht on and e1000 nics without issues so I don't believe it's an issue with my code (famous last words :) which just does an re to extract the data on a per-line basis and prints it out. Still, I'll be adding code to log any big readings and hopefully it'll happen again sooner rather then later.
There is no preemption involved and the kernel is a monolythic build of 2.6.19.[12] (there are two servers).
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