Date: Wed, 07 Oct 2009 14:55:44 +0500 From: rihad <rihad@mail.ru> To: Robert Watson <rwatson@FreeBSD.org> Cc: freebsd-net@freebsd.org, Eugene Grosbein <eugen@kuzbass.ru>, Luigi Rizzo <rizzo@iet.unipi.it>, Julian Elischer <julian@elischer.org> Subject: Re: dummynet dropping too many packets Message-ID: <4ACC65A0.7030900@mail.ru> In-Reply-To: <alpine.BSF.2.00.0910071036280.58146@fledge.watson.org> References: <4AC9E29B.6080908@mail.ru> <20091005123230.GA64167@onelab2.iet.unipi.it> <4AC9EFDF.4080302@mail.ru> <4ACA2CC6.70201@elischer.org> <4ACAFF2A.1000206@mail.ru> <4ACB0C22.4000008@mail.ru> <20091006100726.GA26426@svzserv.kemerovo.su> <4ACB42D2.2070909@mail.ru> <20091006142152.GA42350@svzserv.kemerovo.su> <4ACB6223.1000709@mail.ru> <20091006161240.GA49940@svzserv.kemerovo.su> <alpine.BSF.2.00.0910061804340.50283@fledge.watson.org> <4ACC5563.602@mail.ru> <4ACC56A6.1030808@mail.ru> <alpine.BSF.2.00.0910070957430.58146@fledge.watson.org> <4ACC5DEC.1010006@mail.ru> <alpine.BSF.2.00.0910071036280.58146@fledge.watson.org>
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Robert Watson wrote:
>
> On Wed, 7 Oct 2009, rihad wrote:
>
>>> snapshot of the top -SH output in the steady state? Let top run for
>>> a few minutes and then copy/paste the first 10-20 lines into an e-mail.
>>>
>> Sure. Mind you: now there's only 1800 entries in each of the two ipfw
>> tables, so any drops have stopped. But it only takes another 200-300
>> entries to start dropping.
>
> Could you do the same in the net.isr.direct=1 configuration so we can
> compare?
>
net.isr.direct=1:
last pid: 92152; load averages: 0.99, 1.18, 1.15
up 1+01:42:28 14:53:09
162 processes: 9 running, 136 sleeping, 17 waiting
CPU: 2.1% user, 0.0% nice, 5.4% system, 7.0% interrupt, 85.5% idle
Mem: 1693M Active, 1429M Inact, 447M Wired, 197M Cache, 214M Buf, 170M Free
Swap: 2048M Total, 12K Used, 2048M Free
PID USERNAME PRI NICE SIZE RES STATE C TIME WCPU COMMAND
12 root 171 ki31 0K 16K CPU6 6 24.3H 100.00% idle: cpu6
13 root 171 ki31 0K 16K CPU5 5 23.8H 95.95% idle: cpu5
14 root 171 ki31 0K 16K CPU4 4 23.4H 93.12% idle: cpu4
16 root 171 ki31 0K 16K CPU2 2 23.0H 90.19% idle: cpu2
11 root 171 ki31 0K 16K CPU7 7 24.2H 87.26% idle: cpu7
15 root 171 ki31 0K 16K CPU3 3 22.8H 86.18% idle: cpu3
18 root 171 ki31 0K 16K RUN 0 20.6H 84.96% idle: cpu0
17 root 171 ki31 0K 16K CPU1 1 933:23 47.85% idle: cpu1
29 root -68 - 0K 16K WAIT 1 522:02 46.88% irq256: bce0
465 root -68 - 0K 16K - 7 55:15 12.65% dummynet
31 root -68 - 0K 16K WAIT 2 57:29 4.74% irq257: bce1
21 root -44 - 0K 16K WAIT 0 34:55 4.64% swi1: net
19 root -32 - 0K 16K WAIT 4 51:41 3.96% swi4:
clock sio
30 root -64 - 0K 16K WAIT 6 5:43 0.73% irq16: mfi0
Almost 2000 entries in the table, traffic load= 420-430 mbps, drops
haven't yet started.
Previous net.isr.direct=0:
>
>>
>> 155 processes: 10 running, 129 sleeping, 16 waiting
>> CPU: 2.4% user, 0.0% nice, 2.0% system, 9.3% interrupt, 86.2% idle
>> Mem: 1691M Active, 1491M Inact, 454M Wired, 130M Cache, 214M Buf, 170M
>> Free
>> Swap: 2048M Total, 12K Used, 2048M Free
>>
>> PID USERNAME PRI NICE SIZE RES STATE C TIME WCPU COMMAND
>> 15 root 171 ki31 0K 16K CPU3 3 22.4H 97.85% idle: cpu3
>> 14 root 171 ki31 0K 16K CPU4 4 23.0H 96.29% idle: cpu4
>> 12 root 171 ki31 0K 16K CPU6 6 23.8H 94.58% idle: cpu6
>> 16 root 171 ki31 0K 16K CPU2 2 22.5H 90.72% idle: cpu2
>> 13 root 171 ki31 0K 16K CPU5 5 23.4H 90.58% idle: cpu5
>> 18 root 171 ki31 0K 16K RUN 0 20.3H 85.60% idle: cpu0
>> 17 root 171 ki31 0K 16K CPU1 1 910:03 78.37% idle: cpu1
>> 11 root 171 ki31 0K 16K CPU7 7 23.8H 65.62% idle: cpu7
>> 21 root -44 - 0K 16K CPU7 7 19:03 48.34% swi1: net
>> 29 root -68 - 0K 16K WAIT 1 515:49 19.63% irq256:
>> bce0
>> 31 root -68 - 0K 16K WAIT 2 56:05 5.52% irq257:
>> bce1
>> 19 root -32 - 0K 16K WAIT 5 50:05 3.86% swi4:
>> clock sio
>> 983 flowtools 44 0 12112K 6440K select 0 13:20 0.15%
>> flow-capture
>> 465 root -68 - 0K 16K - 3 51:19 0.00% dummynet
>> 3 root -8 - 0K 16K - 1 7:41 0.00% g_up
>> 4 root -8 - 0K 16K - 2 7:14 0.00% g_down
>> 30 root -64 - 0K 16K WAIT 6 5:30 0.00% irq16: mfi0
>>
>>
>
>
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