Date: Fri, 22 Jan 2010 14:39:05 +0100 From: Luigi Rizzo <rizzo@iet.unipi.it> To: Evgenii Davidov <dado@korolev-net.ru> Cc: freebsd-ipfw@freebsd.org Subject: Re: dummynet: waking up pipe Message-ID: <20100122133905.GA21059@onelab2.iet.unipi.it> In-Reply-To: <20100122131026.GC19815@korolev-net.ru> References: <25ff90d60912162320y286e37a0ufeb64397716d8c18@mail.gmail.com> <ygek4wmyp3j.wl%ume@mahoroba.org> <25ff90d60912180612y2b1f64fbw34b4d7f648762087@mail.gmail.com> <yged42c4770.wl%ume@mahoroba.org> <25ff90d61001021736p7b695197q104f4a7769b51b71@mail.gmail.com> <yge8wc5u872.wl%ume@mahoroba.org> <20100110185232.GA27907@onelab2.iet.unipi.it> <20100112110539.GQ10388@korolev-net.ru> <20100122131026.GC19815@korolev-net.ru>
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On Fri, Jan 22, 2010 at 04:10:26PM +0300, Evgenii Davidov wrote: > ????????????, > > On Tue, Jan 12, 2010 at 02:05:39PM +0300, Evgenii Davidov ?????: > > > hello > > > > when i enable net.inet.ip.dummynet.debug i get a lot of: > > > > Jan 12 13:53:32 r2 kernel: dummynet: waking up pipe 1380 at 1460 > > Jan 12 13:53:32 r2 kernel: dummynet: waking up pipe 2931 at 40 > > Jan 12 13:53:32 r2 kernel: dummynet: waking up pipe 5189 at 40 > > Jan 12 13:53:32 r2 kernel: dummynet: waking up pipe 4562 at 112 > > Jan 12 13:53:32 r2 kernel: dummynet: waking up pipe 3610 at 51 > > Jan 12 13:53:32 r2 kernel: dummynet: waking up pipe 597 at 40 > > Jan 12 13:53:32 r2 kernel: dummynet: waking up pipe 1380 at 1400 > > Jan 12 13:53:32 r2 kernel: dummynet: waking up pipe 1445 at 99 > > Jan 12 13:53:32 r2 kernel: dummynet: waking up pipe 3610 at 51 > > Jan 12 13:53:32 r2 kernel: dummynet: waking up pipe 3610 at 40 > > Jan 12 13:53:32 r2 kernel: dummynet: waking up pipe 597 at 40 > > Jan 12 13:53:32 r2 kernel: dummynet: waking up pipe 218 at 1500 > > > > is it bad? this is just a debug message so ignore it. > > let's see 3610: > > > > ipfw pipe 3610 config bw 10500Kbit/s > > ipfw queue 3610 config pipe 3610 mask dst-ip 0xffffffff > > ipfw table 80 add 10.168.167.227 3610 > > ipfw table 80 add 89.222.187.184 3610 > > > > 00040 8708035 7887386208 queue tablearg ip from any to table(80) out via bge1 > > 00050 44793529 40386675667 pipe tablearg ip from any to table(2) out via bge1 > > 00070 8006000 3713846496 pipe 16 ip from table(16) to any in via bge1 > > 00071 68767107 23673242157 pipe 5 ip from not table(16) to any in via bge1 > > > > ipfw pipe 3610 show > > > > 03610: 10.500 Mbit/s 0 ms 50 sl. 0 queues (1 buckets) droptail > > q03610: weight 1 pipe 3610 50 sl. 1 queues (512 buckets) droptail > > mask: 0x00 0x00000000/0x0000 -> 0xffffffff/0x0000 > > BKT Prot ___Source IP/port____ ____Dest. IP/port____ Tot_pkt/bytes Pkt/Byte Drp > > 5 ip 0.0.0.0/0 10.10.187.184/0 639563 40272017 0 0 0 > > > > my problem is that dummynet cpu usage jumps from 0 to 99%: > > > > 33 root 1 -68 - 0K 8K - 1 512.6H 86.18% dummynet > > 33 root 1 -68 - 0K 8K - 1 512.6H 85.89% dummynet > > 33 root 1 -68 - 0K 8K - 1 512.6H 88.28% dummynet > > 33 root 1 -68 - 0K 8K - 0 512.6H 78.17% dummynet > > 33 root 1 -68 - 0K 8K - 0 512.6H 0.88% dummynet > > 33 root 1 -68 - 0K 8K - 1 512.6H 0.10% dummynet > > 33 root 1 -68 - 0K 8K - 1 512.7H 0.00% dummynet > > 33 root 1 -68 - 0K 8K - 1 512.7H 0.10% dummynet i am not too clear on why this happens -- there shuold be only one instance of the dummynet thread, not 8 as in your case. cheers luigi
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