Date: Tue, 27 Aug 2019 00:15:01 +0700 From: Eugene Grosbein <eugen@grosbein.net> To: Victor Gamov <vit@otcnet.ru>, freebsd-net@freebsd.org Subject: Re: finding optimal ipfw strategy Message-ID: <cd72f9bf-a253-6a29-1405-1d31c9170836@grosbein.net> In-Reply-To: <a559d2bd-5218-f344-2e88-c00893272222@otcnet.ru> References: <f38b21a5-8f9f-4f60-4b27-c810f78cdc88@otcnet.ru> <4ff39c8f-341c-5d72-1b26-6558c57bff8d@grosbein.net> <a559d2bd-5218-f344-2e88-c00893272222@otcnet.ru>
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26.08.2019 23:25, Victor Gamov wrote: > More general question about my current config. I have about 200Mbit input multicasts which bridged and filtered later (about 380 Mbit bridged if trafshow does not lie me :-) ) Don't trust trafshow. Use: systat -ifstat 1 > My FreeBSD box (12.0-STABLE r348449 GENERIC amd64) has one "Intel(R) Xeon(R) CPU E31270 @ 3.40GHz" and 4-ports "Intel(R) PRO/1000 PCI-Express Network Driver". HT disabled and traffic mainly income via igb0 and out both via igb0 and igb2. About 30 VLANs now active some at igb0 and some at igb2. > > > And I have following `top` stat: > ===== > CPU 0: 0.0% user, 0.0% nice, 80.5% system, 0.0% interrupt, 19.5% idle > CPU 1: 0.0% user, 0.0% nice, 34.1% system, 0.0% interrupt, 65.9% idle > CPU 2: 0.0% user, 0.0% nice, 17.1% system, 0.0% interrupt, 82.9% idle > CPU 3: 0.0% user, 0.0% nice, 46.3% system, 0.0% interrupt, 53.7% idle > ===== > > Also `vmstat -i |grep igb`: > ===== > irq264: igb0:rxq0 9310734762 5471 > irq265: igb0:rxq1 10186691956 5985 > irq266: igb0:rxq2 8190475727 4812 > irq267: igb0:rxq3 10063786697 5913 > irq268: igb0:aq 34 0 > irq273: igb1:aq 1 0 > irq274: igb2:rxq0 11010248236 6469 > irq275: igb2:rxq1 10843712062 6371 > irq276: igb2:rxq2 8810194905 5177 > irq277: igb2:rxq3 10975949272 6449 > irq278: igb2:aq 10 0 > irq283: igb3:aq 1 0 > ===== > > > Is it possible to get CPU load about 30% at this config after ipfw optimization? Or may be main bottleneck is not ipfw-specific? You won't know until you try and nobody can tell. Too many variables. And you better compare it with 11.3 because 12.0 may have some unsolved preformance regressions.home | help
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