Date: Tue, 19 Apr 2011 12:10:23 -0700 From: Freddie Cash <fjwcash@gmail.com> To: "K. Macy" <kmacy@freebsd.org> Cc: Nikolay Denev <ndenev@gmail.com>, Ingo Flaschberger <if@freebsd.org>, freebsd-net@freebsd.org Subject: Re: Routing enhancement - reduce routing table locking Message-ID: <BANLkTim6ELLQS_rDEngFmA8MAjKuB0X%2B5w@mail.gmail.com> In-Reply-To: <BANLkTinvc%2BQitiBoi7f3agiHMdbCWdPvWQ@mail.gmail.com> References: <alpine.LRH.2.00.1104050303140.2152@filebunker.xip.at> <alpine.LRH.2.00.1104061426350.2152@filebunker.xip.at> <alpine.LRH.2.00.1104180051450.8693@filebunker.xip.at> <BANLkTik39HvVire6Hzi9U6J2BwKV7apCCg@mail.gmail.com> <alpine.LRH.2.00.1104181852420.8693@filebunker.xip.at> <BANLkTim0hoHDnrweYz%2Bvc7zOvMubddJmGg@mail.gmail.com> <BANLkTim6HMGibDB4ucs%2BtEfqv-LBnF4O-w@mail.gmail.com> <E4328014-47D0-4EFC-8C70-5D28823179C8@gmail.com> <BANLkTi=q4d58LbeEo3=J8U7vAuXSmouEQA@mail.gmail.com> <BANLkTimEvou2f-b8ggLpVDh6RVnnva=wUQ@mail.gmail.com> <BANLkTinvc%2BQitiBoi7f3agiHMdbCWdPvWQ@mail.gmail.com>
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On Tue, Apr 19, 2011 at 12:06 PM, K. Macy <kmacy@freebsd.org> wrote: > On Tue, Apr 19, 2011 at 8:19 PM, Freddie Cash <fjwcash@gmail.com> wrote: >> On Tue, Apr 19, 2011 at 7:42 AM, K. Macy <kmacy@freebsd.org> wrote: >>>> I'm not able to find IFNET_MULTIQUEUE in a recent 8.2-STABLE, is this = something >>>> present only in HEAD? >>> >>> It looks like it is now EM_MULTIQUEUE. >> >> Just curious, how would one enable this to test it? =C2=A0We have igb(4) >> interfaces in our new storage boxes, and it would be interesting to >> test whether or not it helps in our setup. >> > It should automatically allocate a queue per core up to the max > supported. Post 8.0 it should be enabled by default for igb: Ah, you're right. Looking through "vmstat -i" there is a separate queue for each CPU core. SuperMicro H8DGi-F motherboard with igb onboard: irq256: igb0:que 0 1139206 1 irq257: igb0:que 1 30632 0 irq258: igb0:que 2 33896 0 irq259: igb0:que 3 665468 0 irq260: igb0:que 4 297171 0 irq261: igb0:que 5 43611 0 irq262: igb0:que 6 30029 0 irq263: igb0:que 7 3326877 4 irq264: igb0:link 2 0 irq265: igb1:que 0 53522069 77 irq266: igb1:que 1 78335894 113 irq267: igb1:que 2 45704968 65 irq268: igb1:que 3 156102576 225 irq269: igb1:que 4 87793026 126 irq270: igb1:que 5 85639786 123 irq271: igb1:que 6 131898271 190 irq272: igb1:que 7 154087013 222 irq273: igb1:link 2 0 --=20 Freddie Cash fjwcash@gmail.com
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