VERY slow performance on igb+FreeBSD8.2+mpd5.6

[Коньков Евгений]

#uname FreeBSD 8.3-PRERELEASE #2 r231881: Thu Feb 23 00:53:28 UTC 2012
и Version 5.6 (root@ 10:03 20-Feb-2012)
http://www.speedtest.net/result/1790445113.png
try to reconnect to mpd 10-20times and you get next:
http://www.speedtest.net/result/1790454801.png

 mpd has no any sessions except this one.

net.graph.recvspace=524288
net.graph.maxdgram=524288

net.inet.ip.dummynet.io_fast=1
net.inet.ip.dummynet.pipe_slot_limit=1000

dev.igb.0.rx_processing_limit=4096
dev.igb.1.rx_processing_limit=4096
dev.igb.2.rx_processing_limit=4096
dev.igb.3.rx_processing_limit=4096

net.route.netisr_maxqlen=4096

hw.igb.rxd=4096
hw.igb.txd=4096
hw.igb.max_interrupt_rate=32000

net.isr.defaultqlimit=4096
net.link.ifqmaxlen=10240

net.graph.maxdata=32768
net.graph.maxalloc=32768

net.inet.tcp.tcbhashsize=4096         # tcb hash size
net.inet.tcp.syncache.hashsize=1024   # syncache hash size
net.inet.tcp.syncache.bucketlimit=100 # syncache bucket limit
net.isr.bindthreads=0                 # do not bind threads to CPUs
net.isr.direct=0                      # interrupt handling via multiple CPU
net.isr.direct_force=0                # "
net.isr.maxthreads=4                  # Max number of threads for NIC IRQ balancing (4 cores in box)

vmstat -z | grep Gra
ITEM                     SIZE     LIMIT      USED      FREE  REQUESTS  FAILURES
NetGraph items:            72,    32770,        0,      377,   143887,        0
NetGraph data items:       72,    32770,        0,      435,   241884,        0



-- 
С уважением,
 Коньков                          mailto:kes-kes at yandex.ru