Date: Sun, 8 Feb 2015 14:00:34 +0100 From: Wolfgang Zenker <wolfgang@lyxys.ka.sub.org> To: freebsd-mips@freebsd.org Subject: IPv6 throughput only half of IPv4 on ERL Message-ID: <20150208130034.GA80972@lyxys.ka.sub.org>
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Hi, I just started to experiment with FreeBSD MIPS, using an Edge Router Lite as testmachine, running a recent 10.1-STABLE. To test network throughput, I enabled the discard port in inetd and transfered a large file there, via both IPv4 and IPv6. Results: $ dd if=vc.tar bs=1m|nc -4 pomona.lyx 9 552+1 records in 552+1 records out 579002368 bytes transferred in 21.193134 secs (27320281 bytes/sec) $ dd if=vc.tar bs=1m|nc -6 pomona.lyx 9 552+1 records in 552+1 records out 579002368 bytes transferred in 38.638252 secs (14985211 bytes/sec) Testing the same against an Atom-based machine on the same switch took 8.725300 secs (v4) and 10.364100 secs (v6), so the difference between both protocol stacks is much smaller on the Atom target. Any ideas what is the cause of this huge difference on the MIPS platform? Just curious ... Wolfgang
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