Re: state of rtcache removal...

On Wed, Feb 16, 2011 at 4:08 PM, David Miller [off-list ref] wrote:

So I've been testing out the routing cache removal patch to see
what the impact is on performance.

Interesting results.

I assume that this test is purposely using sento on a connected socket
to force sendmsg to go through the route lookup :-), so this is
showing what the benefits of rtcache are is when cache hit rate is
100%.  For comparison, it might interesting to see what the
performance is when rate is < 100%.  For instance, we often see hit
rates < 20% on front end servers.  This could be done flooding to
random addresses in 10/8 or even 0/0...  I'm hoping that without the
rtcache performance actually improves in that case!

Tom