Re: Route cache performance under stress

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   From: Ralph Doncaster <ralph@istop.com>
   Date: Mon, 9 Jun 2003 20:32:48 -0400 (EDT)
   
   Lastly from the software side Linux doesn't seem to have anything like
   BSD's parameter to control user/system CPU sharing.  Once my CPU load
   reaches 70-80%, I'd rather have some dropped packets than let the CPU hit
   100% and end up with my BGP sessions drop.

When packet (more specifically, software interrupt) processing
reaches a certain level, we offload the work into process context.
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