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Message-Id: <20080328001648.M6781@visp.net.lb>
Date: Fri, 28 Mar 2008 02:47:17 +0200
From: "Denys Fedoryshchenko" <denys@...p.net.lb>
To: dada1@...mosbay.com, David Miller <davem@...emloft.net>
Cc: kaber@...sh.net, netdev@...r.kernel.org,
netfilter-devel@...r.kernel.org
Subject: Re: kernel 2.6.25-rc7 highly unstable on high load
After removing shaping and ifb problem probably remains. I will try to apply
mentioned by Denis Lunev, patch.
Netfilter it is kind of difficult to remove completely, pattern of traffic
will change a lot, and it will be false that it was cause of problem. I am
using NOTRACK, SNAT, DNAT, sure filtering. Nothing "special".
rt_cache|rt_cache|rt_cache|rt_cache|rt_cache|rt_cache|rt_cache|rt_cache|
rt_cache|rt_cache|rt_cache|rt_cache|rt_cache|rt_cache|rt_cache|rt_cache|
rt_cache|
entries| in_hit|in_slow_|in_slow_|in_no_ro| in_brd|in_marti|in_marti|
out_hit|out_slow|out_slow|gc_total|gc_ignor|gc_goal_|gc_dst_o|in_hlist|
out_hlis|
| | tot| mc| ute| | an_dst|
an_src| | _tot| _mc| | ed| miss| verflow|
_search|t_search|
122438|25068014| 2464002| 0| 8579| 105| 0| 3|
436160| 149272| 0| 2560231| 2557567| 54| 0|52890998|
1164822|
[ 355.594112] dst_total: 115387 delayed: 1 work_perf: 0 expires: 68196
elapsed: 0 us
[ 423.780775] dst_total: 126186 delayed: 1 work_perf: 0 expires: 76999
elapsed: 0 us
[ 500.768537] dst_total: 122085 delayed: 1 work_perf: 0 expires: 86000
elapsed: 0 us
[ 586.755462] dst_total: 121715 delayed: 1 work_perf: 0 expires: 95000
elapsed: 1 us
[ 681.741665] dst_total: 129798 delayed: 1 work_perf: 0 expires: 104999
elapsed: 0 us
[ 786.732216] dst_total: 116243 delayed: 74333 work_perf: 1 expires: 600
elapsed: 7076 us
[ 787.338620] dst_total: 116912 delayed: 74333 work_perf: 0 expires: 1600
elapsed: 6962 us
[ 788.945653] dst_total: 118565 delayed: 74333 work_perf: 0 expires: 3100
elapsed: 7246 us
[ 792.052890] dst_total: 121611 delayed: 74333 work_perf: 0 expires: 5672
elapsed: 6954 us
[ 797.730354] dst_total: 126794 delayed: 74333 work_perf: 0 expires: 7993
elapsed: 7276 us
[ 805.729136] dst_total: 115686 delayed: 74333 work_perf: 0 expires: 10993
elapsed: 7270 us
[ 816.727732] dst_total: 126402 delayed: 74333 work_perf: 0 expires: 13993
elapsed: 7115 us
[ 830.726662] dst_total: 121002 delayed: 74333 work_perf: 0 expires: 17992
elapsed: 7179 us
[ 848.724144] dst_total: 119849 delayed: 74333 work_perf: 0 expires: 22992
elapsed: 7370 us
[ 871.719176] dst_total: 124661 delayed: 74333 work_perf: 0 expires: 27993
elapsed: 7313 us
[ 899.715826] dst_total: 118860 delayed: 74333 work_perf: 0 expires: 32992
elapsed: 7192 us
[ 932.710299] dst_total: 120856 delayed: 74333 work_perf: 0 expires: 38993
elapsed: 7291 us
[ 971.704648] dst_total: 119519 delayed: 74333 work_perf: 0 expires: 45993
elapsed: 6946 us
[ 1017.698036] dst_total: 126722 delayed: 74333 work_perf: 0 expires: 52992
elapsed: 7300 us
[ 1070.693197] dst_total: 124835 delayed: 101547 work_perf: 3 expires: 600
elapsed: 10089 us
[ 1071.303147] dst_total: 125939 delayed: 101547 work_perf: 0 expires: 1600
elapsed: 9544 us
[ 1072.913253] dst_total: 128499 delayed: 101547 work_perf: 0 expires: 3100
elapsed: 9895 us
[ 1076.021980] dst_total: 117827 delayed: 101547 work_perf: 0 expires: 5659
elapsed: 10096 us
[ 1081.690082] dst_total: 127534 delayed: 101547 work_perf: 0 expires: 7990
elapsed: 10052 us
[ 1089.690531] dst_total: 127330 delayed: 101547 work_perf: 0 expires: 10989
elapsed: 11717 us
Without sysctl adjustments (each 1 minute)
Kup ~ # rtstat -i60 -c60
rt_cache|rt_cache|rt_cache|rt_cache|rt_cache|rt_cache|rt_cache|rt_cache|
rt_cache|rt_cache|rt_cache|rt_cache|rt_cache|rt_cache|rt_cache|rt_cache|
rt_cache|
entries| in_hit|in_slow_|in_slow_|in_no_ro| in_brd|in_marti|in_marti|
out_hit|out_slow|out_slow|gc_total|gc_ignor|gc_goal_|gc_dst_o|in_hlist|
out_hlis|
| | tot| mc| ute| | an_dst|
an_src| | _tot| _mc| | ed| miss| verflow|
_search|t_search|
40160| 3323| 1094| 0| 11| 0| 0| 0|
282| 127| 0| 274| 274| 0| 0| 1867| 226|
102698| 26174| 2885| 0| 6| 0| 0| 0|
620| 228| 0| 3118| 3115| 0| 0| 37298| 1331|
141996| 25752| 2172| 0| 3| 0| 0| 0|
521| 167| 0| 2343| 2340| 0| 0| 66292| 1698|
169128| 24716| 1593| 0| 2| 0| 0| 0|
468| 140| 0| 1734| 1731| 0| 0| 83079| 1714|
185495| 24867| 1493| 0| 1| 0| 0| 0|
386| 125| 0| 1619| 1616| 0| 0| 97451| 1603|
195665| 25227| 1443| 0| 1| 0| 0| 0|
427| 126| 0| 1570| 1567| 0| 0| 111618| 1955|
201357| 25239| 1370| 0| 2| 0| 0| 0|
435| 118| 0| 1490| 1487| 0| 0| 119599| 2010|
206841| 25805| 1487| 0| 2| 0| 0| 0|
515| 120| 0| 1607| 1604| 0| 0| 123823| 2429|
213800| 25230| 1678| 0| 2| 0| 0| 0|
414| 116| 0| 1795| 1792| 0| 0| 127516| 2210|
216461| 25882| 1503| 0| 2| 0| 0| 0|
424| 114| 0| 1618| 1615| 0| 0| 136162| 2308|
220386| 26141| 1632| 0| 2| 0| 0| 0|
387| 115| 0| 1749| 1745| 0| 0| 137147| 2165|
221533| 25649| 1476| 0| 2| 0| 0| 0|
394| 116| 0| 1593| 1590| 0| 0| 131760| 2274|
221139| 25682| 1368| 0| 2| 0| 0| 0|
432| 111| 0| 1481| 1477| 0| 0| 130734| 2321|
152901| 24897| 2242| 0| 6| 0| 0| 0|
367| 157| 0| 2405| 2402| 0| 0| 68008| 1245|
190000| 25295| 1747| 0| 1| 0| 0| 0|
403| 143| 0| 1891| 1888| 0| 0| 69542| 916|
[ 586.911061] dst_total: 225846 delayed: 4 work_perf: 0 expires: 95000
elapsed: 1 us
[ 681.897473] dst_total: 221226 delayed: 4 work_perf: 0 expires: 105000
elapsed: 1 us
[ 786.886616] dst_total: 145402 delayed: 59222 work_perf: 0 expires: 600
elapsed: 5893 us
[ 787.491390] dst_total: 145565 delayed: 59587 work_perf: 0 expires: 600
elapsed: 5783 us
[ 788.096098] dst_total: 145724 delayed: 59888 work_perf: 0 expires: 600
elapsed: 5582 us
[ 788.701111] dst_total: 145983 delayed: 60148 work_perf: 0 expires: 600
elapsed: 5685 us
[ 789.305991] dst_total: 146120 delayed: 60412 work_perf: 0 expires: 600
elapsed: 5661 us
[ 789.910802] dst_total: 146432 delayed: 60643 work_perf: 0 expires: 600
elapsed: 5566 us
[ 790.515868] dst_total: 146558 delayed: 61009 work_perf: 0 expires: 600
elapsed: 5720 us
[ 791.120788] dst_total: 146781 delayed: 61250 work_perf: 0 expires: 600
elapsed: 5714 us
[ 791.725773] dst_total: 147075 delayed: 61488 work_perf: 0 expires: 600
elapsed: 5806 us
[ 792.330558] dst_total: 147404 delayed: 61766 work_perf: 0 expires: 600
elapsed: 5685 us
[ 792.935548] dst_total: 147761 delayed: 61978 work_perf: 0 expires: 600
elapsed: 5765 us
[ 793.540664] dst_total: 147932 delayed: 62339 work_perf: 0 expires: 600
elapsed: 5966 us
[ 794.145640] dst_total: 148181 delayed: 62632 work_perf: 0 expires: 600
elapsed: 6046 us
[ 794.751394] dst_total: 148507 delayed: 62865 work_perf: 0 expires: 600
elapsed: 5886 us
[ 795.356327] dst_total: 148940 delayed: 63123 work_perf: 0 expires: 600
elapsed: 5913 us
[ 795.961312] dst_total: 149304 delayed: 63342 work_perf: 0 expires: 600
elapsed: 5988 us
[ 796.566230] dst_total: 149471 delayed: 63619 work_perf: 0 expires: 600
elapsed: 6002 us
[ 797.172182] dst_total: 149819 delayed: 63853 work_perf: 0 expires: 600
elapsed: 6046 us
[ 797.778163] dst_total: 150183 delayed: 64108 work_perf: 0 expires: 600
elapsed: 6117 us
[ 798.384008] dst_total: 150492 delayed: 64260 work_perf: 0 expires: 600
elapsed: 6052 us
[ 798.990028] dst_total: 150702 delayed: 64535 work_perf: 0 expires: 600
elapsed: 6167 us
[ 799.595797] dst_total: 151109 delayed: 64691 work_perf: 0 expires: 600
elapsed: 6026 us
[ 800.201763] dst_total: 151498 delayed: 64864 work_perf: 0 expires: 600
elapsed: 6084 us
[ 800.807742] dst_total: 151861 delayed: 65075 work_perf: 0 expires: 600
elapsed: 6155 us
[ 801.413577] dst_total: 152344 delayed: 65245 work_perf: 0 expires: 600
elapsed: 6079 us
[ 802.019727] dst_total: 152608 delayed: 65498 work_perf: 0 expires: 600
elapsed: 6323 us
[ 802.625410] dst_total: 153049 delayed: 65676 work_perf: 1 expires: 600
elapsed: 6099 us
[ 803.231251] dst_total: 153390 delayed: 65835 work_perf: 0 expires: 600
elapsed: 6024 us
[ 803.837186] dst_total: 153855 delayed: 65990 work_perf: 0 expires: 600
elapsed: 6056 us
[ 804.443457] dst_total: 154294 delayed: 66133 work_perf: 0 expires: 600
elapsed: 6422 us
[ 805.049167] dst_total: 154548 delayed: 66378 work_perf: 0 expires: 600
elapsed: 6221 us
[ 805.655036] dst_total: 155001 delayed: 66499 work_perf: 0 expires: 600
elapsed: 6183 us
[ 806.260986] dst_total: 155418 delayed: 66642 work_perf: 0 expires: 600
elapsed: 6229 us
[ 806.866893] dst_total: 155892 delayed: 66768 work_perf: 0 expires: 600
elapsed: 6224 us
[ 807.473041] dst_total: 156268 delayed: 66884 work_perf: 0 expires: 600
elapsed: 6463 us
[ 808.078979] dst_total: 156514 delayed: 67093 work_perf: 0 expires: 600
elapsed: 6494 us
[ 808.684670] dst_total: 156927 delayed: 67226 work_perf: 0 expires: 600
elapsed: 6275 us
[ 809.290646] dst_total: 157364 delayed: 67327 work_perf: 0 expires: 600
elapsed: 6345 us
[ 809.896516] dst_total: 157724 delayed: 67428 work_perf: 0 expires: 600
elapsed: 6307 us
[ 810.502756] dst_total: 157915 delayed: 67642 work_perf: 0 expires: 600
elapsed: 6641 us
[ 811.108374] dst_total: 158349 delayed: 67746 work_perf: 0 expires: 600
elapsed: 6349 us
[ 811.714508] dst_total: 158856 delayed: 67843 work_perf: 0 expires: 600
elapsed: 6576 us
[ 812.320241] dst_total: 159315 delayed: 67948 work_perf: 0 expires: 600
elapsed: 6403 us
[ 812.926305] dst_total: 159726 delayed: 68041 work_perf: 0 expires: 600
elapsed: 6553 us
[ 813.532064] dst_total: 159997 delayed: 68217 work_perf: 0 expires: 600
elapsed: 6406 us
[ 814.137984] dst_total: 160527 delayed: 68309 work_perf: 0 expires: 600
elapsed: 6416 us
[ 814.743949] dst_total: 160994 delayed: 68404 work_perf: 0 expires: 600
elapsed: 6475 us
[ 815.350120] dst_total: 161460 delayed: 68497 work_perf: 0 expires: 600
elapsed: 6739 us
[ 815.955683] dst_total: 161873 delayed: 68568 work_perf: 0 expires: 600
elapsed: 6393 us
[ 816.561587] dst_total: 162083 delayed: 68684 work_perf: 0 expires: 600
elapsed: 6389 us
[ 817.167555] dst_total: 162613 delayed: 68748 work_perf: 0 expires: 600
elapsed: 6450 us
[ 817.773653] dst_total: 163137 delayed: 68821 work_perf: 0 expires: 600
elapsed: 6637 us
[ 818.379400] dst_total: 163592 delayed: 68889 work_perf: 0 expires: 600
elapsed: 6477 us
[ 818.985324] dst_total: 164115 delayed: 68946 work_perf: 0 expires: 600
elapsed: 6494 us
[ 819.591212] dst_total: 164223 delayed: 69019 work_perf: 0 expires: 600
elapsed: 6474 us
[ 820.197032] dst_total: 164666 delayed: 69019 work_perf: 0 expires: 1600
elapsed: 6387 us
[ 821.802811] dst_total: 165685 delayed: 69019 work_perf: 0 expires: 3100
elapsed: 6402 us
[ 824.908547] dst_total: 167570 delayed: 69019 work_perf: 0 expires: 4967
elapsed: 6588 us
[ 829.881811] dst_total: 170472 delayed: 69019 work_perf: 0 expires: 7993
elapsed: 6786 us
[ 837.880254] dst_total: 175476 delayed: 69019 work_perf: 0 expires: 10993
elapsed: 6455 us
[ 848.878097] dst_total: 181394 delayed: 69019 work_perf: 0 expires: 13994
elapsed: 6752 us
[ 862.875836] dst_total: 190093 delayed: 69019 work_perf: 0 expires: 17994
elapsed: 6633 us
[ 880.873325] dst_total: 200983 delayed: 69019 work_perf: 0 expires: 22994
elapsed: 6839 us
[ 903.870309] dst_total: 207322 delayed: 69019 work_perf: 0 expires: 27993
elapsed: 6522 us
On Thu, 27 Mar 2008 15:03:08 -0700 (PDT), David Miller wrote
> From: Eric Dumazet <dada1@...mosbay.com>
> Date: Thu, 27 Mar 2008 19:56:09 +0100
>
> > Maybe some netfilter problem ?
> >
> > Please tell us more about your machine ;)
>
> I'm beginning to suspect it's IFB and shaping somehow.
>
> If those variables could be eliminated by eliminating them
> from the configuration, it would help diagnose this a lot.
> --
> To unsubscribe from this list: send the line "unsubscribe netdev" in
> the body of a message to majordomo@...r.kernel.org
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--
Denys Fedoryshchenko
Technical Manager
Virtual ISP S.A.L.
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