Fabian Hugelshofer wrote: > Pablo Neira Ayuso wrote: >> [PATCH] dynamic calculation of event message size for ctnetlink >> >> This patch adds dynamic message size calculation for ctnetlink. This >> reduces CPU consumption since the overhead in the message trimming >> is removed. > > Thanks for the patch. > > Just did some performance tests. On average it saves 5% CPU usage at > ~1600pps (UDP packets, 1000B payload, random source ports) on my router > (IXP4XX, 266Mhz). > > With the unclean patch the performance gain was slightly higher. I have > posted it was 10%, but as far as I remember it was actually a bit less > then that. The remaining difference can be explained by the length > calculation overhead and measuring inaccuracy. How are you measuring CPU consumption? I would not trust "top" or something similar too much. I usually use cyclesoak, however I guess that you'll need a bit of hacking to get it working there. I'll try to do some measurements in my platform soon anyway. -- "Los honestos son inadaptados sociales" -- Les Luthiers -- To unsubscribe from this list: send the line "unsubscribe netfilter-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
