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Date: Thu, 26 Jul 2012 19:36:15 +0200 From: Eric Dumazet <eric.dumazet@...il.com> To: Alexander Duyck <alexander.duyck@...il.com> Cc: David Miller <davem@...emloft.net>, netdev@...r.kernel.org Subject: Re: [PATCH 00/16] Remove the ipv4 routing cache On Thu, 2012-07-26 at 19:31 +0200, Eric Dumazet wrote: > On Thu, 2012-07-26 at 10:18 -0700, Alexander Duyck wrote: > > > I tested this patch and it looks like it runs, but still has the same > > performance issue. I did some digging into the annotation for > > ip_route_intput_noref and it seems like the issue is that I am hitting > > the dst_hold call in __mkroute_input. > > David suggested a percpu cache. > > nh_rth_input would be allocated by alloc_percpu(struct dst *) > > I can work on this. Wait a minute, on input we should use the noref trick too. -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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