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Re: V2.4 policy router operates faster/better than V2.6

To: jeremy.guthrie@xxxxxxxxxx
Subject: Re: V2.4 policy router operates faster/better than V2.6
From: Robert Olsson <Robert.Olsson@xxxxxxxxxxx>
Date: Fri, 14 Jan 2005 16:44:15 +0100
Cc: netdev@xxxxxxxxxxx, Robert Olsson <Robert.Olsson@xxxxxxxxxxx>
In-reply-to: <200501131627.20360.jeremy.guthrie@xxxxxxxxxx>
References: <Pine.LNX.4.44.0501071416060.5818-100000@xxxxxxxxxxxxxxxxxxxxx> <200501131328.34449.jeremy.guthrie@xxxxxxxxxx> <16870.58414.767012.96364@xxxxxxxxxxxx> <200501131627.20360.jeremy.guthrie@xxxxxxxxxx>
Sender: netdev-bounce@xxxxxxxxxxx
Jeremy M. Guthrie writes:
 > 
 > IN:Hits are cache hits yes?  Tot, are the total number of flows created 
 > since 
 > we last looked at the total flow count, correct?  

 Thats correct.

 > What would cause a packet to drop in the network stack and thus showup in 
 > /proc/net/softnet_stat?
 
 Only netif_rx (non-NAPI) driver drops in the backlog. NAPI drivers drops early 
 in device.

 > Performance has picked up.  I am not dropping packets anymore except during 
 > GC.  I upped my interval from 600 seconds to 1800 seconds.   

 Yes and as far as I see you have CPU left the as RX interrupts on eth3 
indicates
 (if the patch is applied) but also the low numbers of time squeeze in 
sofnet_stat

                                                   --ro


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