Date: Mon, 20 Dec 2010 23:44:53 +0300 From: Lev Serebryakov <lev@serebryakov.spb.ru> To: Eugene Grosbein <egrosbein@rdtc.ru> Cc: freebsd-net@freebsd.org Subject: Re: E4500 spend one core to saturate 1Gbit/s link with TCP -- is it nornal? Message-ID: <1647893939.20101220234453@serebryakov.spb.ru> In-Reply-To: <4D0FB1B1.7070703@rdtc.ru> References: <12810339411.20101220205327@serebryakov.spb.ru> <4D0FB1B1.7070703@rdtc.ru>
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Hello, Eugene. You wrote 20 =E4=E5=EA=E0=E1=F0=FF 2010 =E3., 22:42:41: >> Is it normal, that 2.2GHz core is needed to saturate 1Gib link with >> only one client (and one TCP connction), or I have something >> misconfigured? > Compare with ftpd that uses sendfile() kernel function. simple "iperf" shows almost same load (slightly less, but it shows slightly less speed, about 800Mbit). --=20 // Black Lion AKA Lev Serebryakov <lev@serebryakov.spb.ru>
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