Date: Sun, 14 Dec 2003 11:28:12 +0700 From: Eugene Grosbein <eugen@www.svzserv.kemerovo.su> To: Luigi Rizzo <rizzo@icir.org> Cc: net@freebsd.org Subject: Re: how to saturate 100Mbit Message-ID: <20031214042812.GC2249@svzserv.kemerovo.su> In-Reply-To: <20031213101706.A79791@xorpc.icir.org> References: <FE045D4D9F7AED4CBFF1B3B813C85337035E418B@mail.sandvine.com> <20031213101706.A79791@xorpc.icir.org>
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On Sat, Dec 13, 2003 at 10:17:06AM -0800, Luigi Rizzo wrote: > the fxp has a problem which does not allow it to go above 103/110/120kpps > depending on which descriptor model you use, no matter how fast > the CPU is. Can you explain the problem, please? > Even not using any special kernel modules, a simple loop over > a sendto() on a udp socket can achieve around 500kpps on a 2.4GHz > box (em or bge). With some tricks and a sufficiently fast PCI > bus you can reach some 750kpps but then it really depends > on how fast is your PCI bus. 100*1024*1024/8/1500=8738.1(3) It seems one does not need hundred of thousand pps to achive 100Mbps. EUgene
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