Date: Sun, 8 Jan 2012 17:25:02 +0200 From: =?windows-1251?B?yu7t/Oru4iDF4uPl7ejp?= <kes-kes@yandex.ru> To: =?windows-1251?B?yu7t/Oru4iDF4uPl7ejp?= <kes-kes@yandex.ru> Cc: freebsd-bugs@FreeBSD.org, freebsd-questions@freebsd.org Subject: Re[10]: high load system do not take all CPU time Message-ID: <819444292.20120108172502@yandex.ru> In-Reply-To: <1332691712.20120108165534@yandex.ru> References: <9110154891.20111226214424@yandex.ru> <201112262154.pBQLsxJt038471@mail.r-bonomi.com> <1863129064.20120105223118@yandex.ru> <1332691712.20120108165534@yandex.ru>
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ÊÅ> Also I notice next:
ÊÅ> in case of overload 'ping localhost' or any IP this router has get
ÊÅ> timeouts about 50-100ms, pinging any external host on LAN or Internet
ÊÅ> get normal results: 5ms LAN, 40ms Internet.
ÊÅ> I do not think this issue related to re0 interface or its driver.
ÊÅ> This is related to kernel and its structures.
details:
which system queues or buffers can cause such bad results for
localhost pinging?
# ping 127.0.0.1
PING 127.0.0.1 (127.0.0.1): 56 data bytes
64 bytes from 127.0.0.1: icmp_seq=0 ttl=64 time=122.377 ms
64 bytes from 127.0.0.1: icmp_seq=1 ttl=64 time=53.025 ms
64 bytes from 127.0.0.1: icmp_seq=2 ttl=64 time=36.214 ms
64 bytes from 127.0.0.1: icmp_seq=3 ttl=64 time=85.151 ms
64 bytes from 127.0.0.1: icmp_seq=4 ttl=64 time=105.704 ms
64 bytes from 127.0.0.1: icmp_seq=5 ttl=64 time=1.145 ms
64 bytes from 127.0.0.1: icmp_seq=6 ttl=64 time=26.240 ms
64 bytes from 127.0.0.1: icmp_seq=7 ttl=64 time=37.532 ms
64 bytes from 127.0.0.1: icmp_seq=8 ttl=64 time=20.161 ms
64 bytes from 127.0.0.1: icmp_seq=9 ttl=64 time=7.876 ms
64 bytes from 127.0.0.1: icmp_seq=10 ttl=64 time=36.441 ms
64 bytes from 127.0.0.1: icmp_seq=11 ttl=64 time=0.840 ms
64 bytes from 127.0.0.1: icmp_seq=12 ttl=64 time=45.483 ms
64 bytes from 127.0.0.1: icmp_seq=13 ttl=64 time=29.629 ms
64 bytes from 127.0.0.1: icmp_seq=14 ttl=64 time=0.025 ms
64 bytes from 127.0.0.1: icmp_seq=15 ttl=64 time=86.228 ms
64 bytes from 127.0.0.1: icmp_seq=16 ttl=64 time=141.489 ms
64 bytes from 127.0.0.1: icmp_seq=17 ttl=64 time=118.011 ms
64 bytes from 127.0.0.1: icmp_seq=18 ttl=64 time=14.077 ms
64 bytes from 127.0.0.1: icmp_seq=19 ttl=64 time=0.599 ms
64 bytes from 127.0.0.1: icmp_seq=20 ttl=64 time=0.041 ms
64 bytes from 127.0.0.1: icmp_seq=21 ttl=64 time=59.191 ms
64 bytes from 127.0.0.1: icmp_seq=22 ttl=64 time=36.222 ms
64 bytes from 127.0.0.1: icmp_seq=23 ttl=64 time=3.278 ms
64 bytes from 127.0.0.1: icmp_seq=24 ttl=64 time=153.970 ms
64 bytes from 127.0.0.1: icmp_seq=25 ttl=64 time=71.832 ms
64 bytes from 127.0.0.1: icmp_seq=26 ttl=64 time=0.740 ms
64 bytes from 127.0.0.1: icmp_seq=27 ttl=64 time=22.389 ms
64 bytes from 127.0.0.1: icmp_seq=28 ttl=64 time=6.637 ms
64 bytes from 127.0.0.1: icmp_seq=29 ttl=64 time=2.888 ms
64 bytes from 127.0.0.1: icmp_seq=30 ttl=64 time=27.595 ms
64 bytes from 127.0.0.1: icmp_seq=31 ttl=64 time=59.914 ms
64 bytes from 127.0.0.1: icmp_seq=32 ttl=64 time=8.892 ms
^C
--- 127.0.0.1 ping statistics ---
33 packets transmitted, 33 packets received, 0.0% packet loss
round-trip min/avg/max/stddev = 0.025/43.086/153.970/43.818 ms
last pid: 34214; load averages: 4.02, 4.13, 4.38 up 8+20:50:08 17:18:01
276 processes: 6 running, 251 sleeping, 16 waiting, 3 lock
CPU 0: 16.5% user, 0.0% nice, 12.2% system, 48.9% interrupt, 22.3% idle
CPU 1: 12.2% user, 0.0% nice, 13.7% system, 60.4% interrupt, 13.7% idle
CPU 2: 8.6% user, 0.0% nice, 8.6% system, 68.3% interrupt, 14.4% idle
CPU 3: 10.8% user, 0.0% nice, 4.3% system, 72.7% interrupt, 12.2% idle
Mem: 638M Active, 2804M Inact, 313M Wired, 135M Cache, 112M Buf, 8736K Free
Swap: 4096M Total, 16M Used, 4080M Free
PID USERNAME PRI NICE SIZE RES STATE C TIME WCPU COMMAND
12 root -72 - 0K 160K *per-i 3 67.7H 95.26% {swi1: netisr 3}
12 root -72 - 0K 160K CPU1 1 46.5H 84.62% {swi1: netisr 1}
12 root -72 - 0K 160K *per-i 2 24.5H 36.57% {swi1: netisr 2}
11 root 155 ki31 0K 32K RUN 0 139.3H 34.81% {idle: cpu0}
12 root -72 - 0K 160K *per-i 3 19.6H 32.57% {swi1: netisr 0}
11 root 155 ki31 0K 32K RUN 1 141.2H 19.48% {idle: cpu1}
11 root 155 ki31 0K 32K CPU2 2 140.2H 17.43% {idle: cpu2}
11 root 155 ki31 0K 32K CPU3 3 141.5H 15.92% {idle: cpu3}
12 root -92 - 0K 160K WAIT 0 26.4H 13.09% {irq256: re0}
93929 root 24 0 15392K 5616K select 0 86:57 6.88% snmpd
13 root -16 - 0K 32K sleep 2 599:49 4.83% {ng_queue1}
13 root -16 - 0K 32K sleep 2 600:32 4.20% {ng_queue0}
13 root -16 - 0K 32K sleep 3 600:57 3.86% {ng_queue3}
13 root -16 - 0K 32K sleep 0 600:05 3.76% {ng_queue2}
34145 cacti 27 0 12000K 3096K select 0 0:00 1.22% snmpwalk
34185 cacti 52 0 32256K 16604K nanslp 2 0:00 0.93% php
86746 root 20 0 139M 57632K select 2 17:09 0.29% {mpd5}
86746 root 20 0 139M 57632K select 0 0:00 0.29% {mpd5}
86746 root 20 0 139M 57632K select 2 0:00 0.29% {mpd5}
32865 freeradius 20 -20 151M 123M usem 3 1:31 0.24% {radiusd}
32865 freeradius 20 -20 151M 123M usem 2 1:31 0.24% {radiusd}
32865 freeradius 20 -20 151M 123M usem 0 1:25 0.24% {radiusd}
1 users Load 4.88 4.34 4.45 Jan 8 17:18
Mem:KB REAL VIRTUAL VN PAGER SWAP PAGER
Tot Share Tot Share Free in out in out
Act 883556 12112 3211480 38276 159236 count 24
All 1086936 19504 5456924 92620 pages 26
Proc: Interrupts
r p d s w Csw Trp Sys Int Sof Flt 534 cow 36566 total
1 199 126k 4667 12k 20k 13k 2280 765 zfod 43 ata0 14
157 ozfod 1 ehci0 16
8.2%Sys 62.7%Intr 2.8%User 0.0%Nice 26.3%Idle 20%ozfod 2 ehci1 23
| | | | | | | | | | | daefr 4127 cpu0:timer
====+++++++++++++++++++++++++++++++>> 826 prcfr 20188 re0 256
155 dtbuf 2434 totfr 4096 cpu1:timer
Namei Name-cache Dir-cache 142271 desvn react 4032 cpu3:timer
Calls hits % hits % 48240 numvn pdwak 4077 cpu2:timer
12498 12492 100 34644 frevn pdpgs
intrn
Disks ad0 da0 pass0 320468 wire
KB/t 16.85 0.00 0.00 632440 act
tps 43 0 0 2879156 inact
MB/s 0.70 0.00 0.00 132996 cache
%busy 3 0 0 26376 free
114976 buf
--
Ñ óâàæåíèåì,
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