[FUG-BR] No buffer space "emX"

[Felipe N. Oliva]

16GB RAM

# vmstat -z | grep mbuf
mbuf_packet:              256,        0,    16281,      117,
11368673908,        0
mbuf:                           256,        0,    14448,     1344,
20758623069,        0
mbuf_cluster:            2048,   133120,    16399,      689,
9933426451,        0
mbuf_jumbo_page:   4096,   131072,    12510,      367, 2989229064,        0
mbuf_jumbo_9k:       9216,    16640,        0,        0,        0,        0
mbuf_jumbo_16k:   16384,     8320,        0,        0,        0,        0
mbuf_ext_refcnt:            4,        0,        0,      168,
12,        0


Em 22 de junho de 2011 17:46, Alexandre Biancalana
<biancalana em gmail.com>escreveu:

> 2011/6/22 Felipe N. Oliva <felipe em cnsolucoes.com.br>:
> > Senhores, estou com o seguinte problema:
> >
> > FreeBSD 8.2-STABLE
> >
> > Trafego:
> >
> >      em0                 em1                ipfw0
> >  Kbps in  Kbps out   Kbps in  Kbps out   Kbps in  Kbps out
> > 89343.66  10984.74  12032.96  163709.1      0.00      0.00
> > 73986.44   9453.57  11249.74  162776.1      0.00      0.00
> > 82020.52  10619.25  11970.38  160399.4      0.00      0.00
> > 79602.59  10026.42  11442.68  162006.7      0.00      0.00
> > 74788.55  10141.10  12120.73  164523.2      0.00      0.00
> > 81153.43  10439.89  11903.59  162613.0      0.00      0.00
> > 80163.62  10575.31  11866.03  165640.7      0.00      0.00
> > 80444.00  10124.54  11401.45  157874.0      0.00      0.00
> > 82067.25  10113.48  11423.59  157767.8      0.00      0.00
> > 84670.40  11147.81  12452.23  164365.0      0.00      0.00
> > 72053.35  10117.19  11889.06  157832.0      0.00      0.00
> > 77526.03  10476.41  12242.77  158083.3      0.00      0.00
> > 73478.33  10274.84  11725.72  160038.8      0.00      0.00
> > 81260.33  10566.81  12079.98  166000.9      0.00      0.00
> > 77436.60  10688.88  12278.61  166983.2      0.00      0.00
> > 74916.26  10261.82  12594.53  163375.1      0.00      0.00
> >
> > # netstat -m
> > 58413/1827/60240 mbufs in use (current/cache/total)
> > 28910/642/29552/133120 mbuf clusters in use (current/cache/total/max)
> > 28909/138 mbuf+clusters out of packet secondary zone in use
> (current/cache)
> > 26016/328/26344/131072 4k (page size) jumbo clusters in use
> > (current/cache/total/max)
> > 0/0/0/16640 9k jumbo clusters in use (current/cache/total/max)
> > 0/0/0/8320 16k jumbo clusters in use (current/cache/total/max)
> > 176489K/3052K/179542K bytes allocated to network (current/cache/total)
> > 0/0/0 requests for mbufs denied (mbufs/clusters/mbuf+clusters)
> > 0/0/0 requests for jumbo clusters denied (4k/9k/16k)
> > 0/0/0 sfbufs in use (current/peak/max)
> > 0 requests for sfbufs denied
> > 0 requests for sfbufs delayed
> > 4 requests for I/O initiated by sendfile
> > 0 calls to protocol drain routines
> >
> > Ja realizamos os seguintes tunings:
> >
> > sysctl.conf
> > net.inet.tcp.recvbuf_max=524288
> > net.inet.tcp.sendbuf_max=524288
> > net.inet.ip.intr_queue_maxlen=512
> > net.route.netisr_maxqlen=512
> > net.inet.flowtable.enable=0
> > kern.ipc.maxsockbuf=384000
> > net.inet.tcp.sendspace=131072
> > net.inet.tcp.recvspace=131072
> > kern.ipc.nmbclusters=133120
> > kern.ipc.nmbjumbop=131072
> >
> > loader.conf
> > net.link.ifqmaxlen=1024
> > net.isr.direct=1
> > net.isr.bindthreads=1
> > net.isr.numthreads=4
> > net.isr.defaultqlimit=4096
> >
> > Porem, de vez em sempre a interface para de responder, ou melhor responde
> > isso: "No buffer space available".
> >
> > Alguem ja passou por isso?
>
> Quanto o servidor tem de memória ?
> Poderia mandar o resultado de um vmstat -z ?
> -------------------------
> Histórico: http://www.fug.com.br/historico/html/freebsd/
> Sair da lista: https://www.fug.com.br/mailman/listinfo/freebsd
>



-- 
Felipe N. Oliva
C & N Soluções em Tecnologia
Admin. de Sistemas/Redes
www.cnsolucoes.com.br