Date: Sat, 20 Oct 2018 06:23:29 +0700 From: Eugene Grosbein <eugen@grosbein.net> To: Lev Serebryakov <lev@FreeBSD.org>, freebsd-net@freebsd.org Subject: Re: What is best TCP throughput benchmarking tool? Message-ID: <78b23b34-7c47-30a1-4386-405ec90fa76d@grosbein.net> In-Reply-To: <876446461.20181020020328@serebryakov.spb.ru> References: <eaf633d0-beb7-d806-7d2e-bfec0beb1e47@FreeBSD.org> <650aa1c7-26db-f463-cb59-8dfe1886c764@grosbein.net> <1743704969.20181019235034@serebryakov.spb.ru> <04f00191-78b8-6c9f-4b6b-fb11d10f91ea@grosbein.net> <876446461.20181020020328@serebryakov.spb.ru>
next in thread | previous in thread | raw e-mail | index | archive | help
20.10.2018 6:03, Lev Serebryakov wrote: >>>>> Please note, that I'm testing endpoint, not a router, so netmap-based >>>>> packet generators & receivers is no use for me, unfortunately. >>>> Try benchmarks/wrk. It works pretty well for speeds lower than 40Gbit/s >>>> but its version 4.0.2 had its own rough edges demanding a router between TCP endpoints. >>>> I have not tried its newer versions, though. >>> Looks like benchmark/wrk is HTTP benchmark, opposite to what I need... >> Together with nginx, wrk can serve as quick TCP traffic generator/receiver. >> I've used them in 40G environment with success. > To be honest, I don't want to run nginx on both ends (and I need to test > both directions) and it is hard to control time of one connection (by > sending file size?) and monitor speed in test progress... You do not need to micro-control this. The wrk provides you with nice stats plus you have counters of "systat -ifstat 1" during long test. > All these tools — wrk, nginx — are optimized for many concurrent > connections on powerful hardware and looks like overkill to test one > connection bandwidth on Atom CPU. You can choose number of concurrent connections yourself while running wrk. > BTW, how to configure nginx to server 16G+ file without any disk access? > One big hole on tmpfs? :) You do not need large disk file in case of wrk+nginx. Make small-sized tmpfs with single several megabytes-sized file, and that's all.
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?78b23b34-7c47-30a1-4386-405ec90fa76d>