Jesper Dangaard Brouer a écrit : > On Mon, 30 Mar 2009, Eric Dumazet wrote: > >> Jesper Dangaard Brouer a écrit : >>> >>>> Eric Dumazet wrote: >>>>> "tbench 8" results on my 8 core machine (32bit kernel, with >>>>> conntracking on) : 2319 MB/s instead of 2284 MB/s >>> >>> How do you achieve this impressing numbers? >>> Is it against localhost? (10Gbit/s is max 1250 MB/s) >>> >> >> tbench is a tcp test on localhost yes :) > > I see! > > Using a Sun 10GbE NIC I was only getting a throughput of 556.86 MB/sec > with 64 procs (between an AMD Phenom X4 and a Core i7). (Not tuned > multi queues yet ...) > > Against localhost I'm getting (not with applied patch): > > 1336.42 MB/sec on my AMD phenom X4 9950 Quad-Core Processor > > 1552.81 MB/sec on my Core i7 920 (4 physical cores, plus 4 threads) Strange results, compared to my E5420 (I thought i7 was faster ??) > > 2274.53 MB/sec on my dual CPU Xeon E5420 (8 cores) Yes, my dev machine is a dual E5420 (8 cores) at 3.00 GHz gcc version here is 4.3.3 > > >> Good to test tcp stack without going to NIC hardware > > Yes true, but this also stresses the process scheduler, I'm seeing > around 800.000 context switches per sec on the Dual CPU Xeon system. > Indeed, tbench is a mix of tcp and process scheduler test/bench -- 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
