Date: Tue, 12 Apr 2011 10:21:24 -0500 From: Dan Nelson <dnelson@allantgroup.com> To: Denny Schierz <linuxmail@4lin.net> Cc: freebsd-stable <freebsd-stable@freebsd.org> Subject: Re: Network throughput: Never =?utf-8?q?get_more_than_112MB/s_?= =?utf-8?b?w7xiZXI=?= two NICs Message-ID: <20110412152124.GE10022@dan.emsphone.com> In-Reply-To: <1302610335.11354.2.camel@pcdenny> References: <1302516039.3223.222.camel@pcdenny> <BANLkTinE5rSA26M5edj=EpuJHeuTeuHdwg@mail.gmail.com> <D222126D-D730-46EE-A5A0-996C9AA08560@4lin.net> <4DA34331.7000202@tundraware.com> <2C11868B-EE15-4913-A041-E342A387794C@4lin.net> <1302610335.11354.2.camel@pcdenny>
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In the last episode (Apr 12), Denny Schierz said: > Am Montag, den 11.04.2011, 21:52 +0200 schrieb Denny Schierz: > > Am 11.04.2011 um 20:06 schrieb Tim Daneliuk: > > > Are you certain you are not somehow running active-passive instead of > > > active-active ... just a thought... > > > > 150% sure. I used two dedicated NICs WITHOUT any loadbalancing. The sum > > has to be more than 112MB/s. > > it must me the network. I tested two crossover connections and I've got > 220MB/s :-) Check to see whether your switch ports are oversubscribed (common for older blade switches, or very high-density blades); sometimes there will be rectangles enclosing groups of 6-8 ports, which means that they are controlled by a single chip internally. Moving each of your test machines to a separate group may improve your performance. -- Dan Nelson dnelson@allantgroup.com
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