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深圳某局点AC插卡CPU利用率高的问题

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深圳智慧城市40G无线插卡周期性的CPU利用率告警,CPU使用率到达100%,其中AGNT进程偏高,会达到70%。

Warning:CPU usage overload!

===== CPU usage info (no:  0  idx: 49) =====
CPU Usage Stat. Cycle: 60 (Second)
CPU Usage            : 100%
CPU Usage Stat. Time : 2015-08-28  09:52:09
CPU Usage Stat. Tick : 0xd5c1(CPU Tick High) 0x6102d0e9(CPU Tick Low)
Actual Stat. Cycle   : 0x1(CPU Tick High) 0xfee9b942(CPU Tick Low)

TaskName        CPU        Runtime(CPU Tick High/CPU Tick Low)
MCIN             0%               0/   19496
TICK             0%               0/ 12b87bb
STMR             0%               0/ 1d437e7
IPCT             0%               0/  4efc4f
DrTC             0%               0/  46b473
CTLT             0%               0/  63b110
CKPT             0%               0/    851b
  VP             0%               0/     5a5
IPCB             0%               0/  1f2b3e
RPCQ             0%               0/  51b744
ADJ6             0%               0/   13373
IPCM             0%               0/   23b8c
INFO             2%               0/ e071d86
WPMS             0%               0/   207e5
 DEV             0%               0/  143dc8
SOCK             0%               0/  823a4d
ADJ4             0%               0/   1bcea
SFLW             0%               0/   58a89
 ACL             0%               0/   3da06
 mac             0%               0/   89f12
LAGG             0%               0/   2b18d
MSTP             0%               0/   243be
LLDP             0%               0/   1f45e
PTMT             0%               0/ 181b4f6
PTTP             3%               0/10e18fce
 ARP             6%               0/21c25161
  IP             0%               0/  49d89d
 NQA             0%               0/  4afaaa
FSLH             0%               0/   2eb38
FSLR             0%               0/  138801
NTPT             0%               0/   25bf0
VTYD             0%               0/  124b80
DHCP             0%               0/   328ee
  ND             0%               0/  274f47
AGNT            73%               1/770b1a10
TRAP             0%               0/  22326c
DT1X             0%               0/ 17141a6
 ACM             0%               0/  abc1c0
  LS             0%               0/   df00c
RDSO             0%               0/  10adf4
 RDS             0%               0/  4e0668
  SC             0%               0/  5d4f2e
 IKE             0%               0/  5f0673
MACA             0%               0/ 21f9581
WAPI             0%               0/  202f45
PSEC             0%               0/  1db05a
ULOG             0%               0/  111ccc
IGSP             0%               0/   ee438
STND             0%               0/   71613
ROUT             0%               0/  628b69
WMAC             4%               0/1989f198
WIDS             0%               0/  10d9ae
WRRM             0%               0/ 1e76fdb
CWMS             0%               0/   43cac
LWPS             5%               0/1c81e268
 WVB             0%               0/   212ed
WBKP             0%               0/   f8586
IACT             0%               0/   1e10f
WBNJ             0%               0/   ebb5a
IFNT             0%               0/   2f44d
FTMT             0%               0/  e3ca09
FTMC             0%               0/  26ca16
 DNS             0%               0/  10c278
 vt2             0%               0/   ca779

Warning:CPU usage overload!

[luohu-ac-hidecmd]dis cpu task                                                                                                      

===== Current CPU usage info =====                                                                                                 

CPU Usage Stat. Cycle: 56 (Second)                                                                                                  

CPU Usage            : 100%                                                                                                        

CPU Usage Stat. Time : 2015-08-26  09:30:45                                                                                         

CPU Usage Stat. Tick : 0xc0a5(CPU Tick High) 0x180538bd(CPU Tick Low)                                                              

Actual Stat. Cycle   : 0x1(CPU Tick High) 0xde8a3509(CPU Tick Low)                                                                 

                                                                                                                                    

TaskName        CPU        Runtime(CPU Tick High/CPU Tick Low)                                                                     

MCIN             0%               0/   7e11c                                                                                       

FSHE             0%               0/   238d7                                                                                        

VIDL             0%               0/  99b498                                                                                       

TICK             0%               0/ 14512dc                                                                                       

STMR             0%               0/ 1bd10e2                                                                                       

IPCT             0%               0/  5a500a                                                                                       

DrTC             0%               0/  5c430c                                                                                       

CTLT             0%               0/  6ca49b                                                                                       

CKPT             0%               0/    a3b0                                                                                       

  VP             0%               0/     577                                                                                       

IPCB             0%               0/  1ecdad                                                                                        

RPCQ             0%               0/  5ad8eb                                                                                       

MACF             0%               0/  12d0fb                                                                                        

ADJ6             0%               0/   11060                                                                                       

IPCM             0%               0/   223d2                                                                                        

INFO             4%               0/148c9ba2                                                                                       

 vt0             0%               0/ 10a885c                                                                                       

WIPS             1%               0/ 56283c3                                                                                        

WCFG             0%               0/     656                                                                                       

WPMS             0%               0/   22fe3                                                                                        

WPEE             0%               0/     61b                                                                                       

CCST             0%               0/     ea5                                                                                        

 DEV             0%               0/  13d581                                                                                       

SOCK             0%               0/  9b9df5                                                                                        

ADJ4             0%               0/   1ab45                                                                                       

SFLW             0%               0/   5507b                                                                                        

 ACL             0%               0/   3a69a                                                                                       

 mac             0%               0/   74799                                                                                        

LAGG             0%               0/   28105                                                                                       

MSTP             0%               0/   226ad                                                                                        

LLDP             0%               0/   1db3b                                                                                       

PTMT             0%               0/ 14109d1                                                                                        

PTTP             4%               0/141500ad                                                                                       

 qos             0%               0/     f48                                                                                       

 ARP             9%               0/2c3ae79f                                                                                       

  IP             0%               0/  5bc308                                                                                       

 NQA             0%               0/  54fb6a                                                                                       

FSLH             0%               0/   2cf34                                                                                       

FSLR             0%               0/  1333e9                                                                                       

NTPT             0%               0/   22061                                                                                       

VTYD             0%               0/  18d87e                                                                                       

DHCP             0%               0/   31c2c                                                                                       

  ND             0%               0/  276e09                                                                                        

AGNT            61%               1/270fce93                                                                                       

TRAP             3%               0/ f0c5dbb                                                                                        

DT1X             0%               0/ 16dd135                                                                                       

 ACM             0%               0/  a3c3af                                                                                       

  LS             0%               0/   da3b8                                                                                        

RDSO             0%               0/   edad1                                                                                       

 RDS             0%               0/  4245fc                                                                                        

  SC             0%               0/  5a3d04                                                                                       

 IKE             0%               0/  5571af                                                                                        

MACA             0%               0/ 205eb28                                                                                       

WAPI             0%               0/  1fe859                                                                                        

PSEC             0%               0/  19c516                                                                                       

ULOG             0%               0/  106887                                                                                        

IGSP             0%               0/   e13de                                                                                       

STND             0%               0/   6d052                                                                                        

ROUT             0%               0/  763bcb                                                                                       

WMAC             5%               0/1c4a7de5                                                                                        

WIDS             0%               0/  1089bd                                                                                       

WRRM             0%               0/ 26390b5                                                                                        

CWMS             0%               0/   44222                                                                                       

LWPS             6%               0/1dbf09f9                                                                                       

 WVB             0%               0/   1faa4                                                                                       

WBKP             0%               0/   f49ec                                                                                       

IACT             0%               0/   1d15d                                                                                       

WBNJ             0%               0/   e98f9                                                                                       

IFNT             0%               0/   6bd7c                                                                                       

FTMT             0%               0/  ec4d76                                                                                       

FTMC             0%               0/  30b32f                                                                                       

 vt1             0%               0/  e00e36                                                                                       

 DNS             0%               0/  10e7d9                                                                                        

                                                                                                                                                                                                                                                         

[luohu-ac-hidecmd]fpl-diag showcplog 9,26,8,0,120                                                                                  

                                                                                                                                    

idx proto            date                 rx           drop         delta                                                           

--------------------------------------------------------------------------                                                         

6119 snmp             08:00:18 08/26/2015  63968672     45658        2830                                                           

6120 snmp             08:01:19 08/26/2015  63972965     45672        4293                                                          

6121 snmp             08:02:20 08/26/2015  63977802     45672        4837                                                           

6122 snmp             08:03:20 08/26/2015  63982851     45672        5049                                                          

6123 snmp             08:04:20 08/26/2015  63987511     45672        4660                                                           

6124 snmp             08:05:20 08/26/2015  63991313     45672        3802                                                          

6125 snmp             08:06:21 08/26/2015  63995245     45672        3932                                                           

6126 snmp             08:07:22 08/26/2015  64000215     45674        4970                                                          

6127 snmp             08:08:23 08/26/2015  64005829     45674        5614                                                          

6128 snmp             08:09:23 08/26/2015  64016344     45674        10515                                                         

6129 snmp             08:10:23 08/26/2015  64019825     45674        3481                                                          

6130 snmp             08:11:23 08/26/2015  64020215     45674        390                                                           

6131 snmp             08:12:23 08/26/2015  64020748     45674        533                                                           

6132 snmp             08:13:24 08/26/2015  64020957     45674        209                                                           

6133 snmp             08:14:24 08/26/2015  64021678     45674        721                                                           

6134 snmp             08:15:25 08/26/2015  64026558     45709        4880                                                          

6135 snmp             08:16:26 08/26/2015  64032301     45725        5743                                                          

6136 snmp             08:17:26 08/26/2015  64044276     45725        11975                                                         

6137 snmp             08:18:26 08/26/2015  64046062     45725        1786                                                          

6138 snmp             08:19:26 08/26/2015  64046269     45725        207                                                           

6139 snmp             08:20:27 08/26/2015  64046542     45725        273                                                           

6140 snmp             08:21:27 08/26/2015  64049117     45725        2575                                                          

6141 snmp             08:22:28 08/26/2015  64054136     45733        5019                                                          

6142 snmp             08:23:29 08/26/2015  64064486     45736        10350                                                          

6143 snmp             08:24:29 08/26/2015  64069313     45736        4827                                                          

6144 snmp             08:25:29 08/26/2015  64069625     45736        312                                                            

6145 snmp             08:26:29 08/26/2015  64070011     45736        386                                                           

6146 snmp             08:27:30 08/26/2015  64072513     45736        2502                                                          

6147 snmp             08:28:30 08/26/2015  64072725     45736        212                                                            

6148 snmp             08:29:30 08/26/2015  64073968     45736        1243                                                          

6149 snmp             08:30:31 08/26/2015  64078729     45745        4761                                                           

6150 snmp             08:31:32 08/26/2015  64083181     45755        4452                                                          

6151 snmp             08:32:32 08/26/2015  64088437     45755        5256                                                           

6152 snmp             08:33:32 08/26/2015  64093300     45755        4863                                                          

6153 snmp             08:34:33 08/26/2015  64097306     45755        4006                                                           

6154 snmp             08:35:33 08/26/2015  64101275     45755        3969                                                          

6155 snmp             08:36:33 08/26/2015  64104483     45755        3208                                                           

6156 snmp             08:37:34 08/26/2015  64109106     45767        4623                                                          

6157 snmp             08:38:35 08/26/2015  64114697     45774        5591                                                          

6158 snmp             08:39:35 08/26/2015  64118650     45774        3953                                                          

6159 snmp             08:40:35 08/26/2015  64126776     45774        8126                                                          

6160 snmp             08:41:35 08/26/2015  64128551     45774        1775                                                          

6161 snmp             08:42:36 08/26/2015  64129042     45774        491                                                           

6162 snmp             08:43:36 08/26/2015  64129256     45774        214                                                           

6163 snmp             08:44:36 08/26/2015  64131006     45774        1750                                                          

6164 snmp             08:45:37 08/26/2015  64135905     45780        4899                                                          

6165 snmp             08:46:38 08/26/2015  64142748     45793        6843                                                          

6166 snmp             08:47:38 08/26/2015  64152357     45793        9609                                                          

6167 snmp             08:48:39 08/26/2015  64154626     45793        2269                                                          

6168 snmp             08:49:39 08/26/2015  64154774     45793        148                                                           

6169 snmp             08:50:39 08/26/2015  64155047     45793        273                                                           

6170 snmp             08:51:39 08/26/2015  64158573     45793        3526                                                          

6171 snmp             08:52:40 08/26/2015  64163475     45793        4902                                                          

6172 snmp             08:53:41 08/26/2015  64177065     45793        13590                                                          

6173 snmp             08:54:41 08/26/2015  64177867     45793        802                                                           

6174 snmp             08:55:41 08/26/2015  64178147     45793        280                                                           

6175 snmp             08:56:41 08/26/2015  64178672     45793        525                                                            

6176 snmp             08:57:41 08/26/2015  64181052     45793        2380                                                          

6177 snmp             08:58:41 08/26/2015  64181260     45793        208                                                            

6178 snmp             08:59:42 08/26/2015  64183517     45793        2257                                                          

6179 snmp             09:00:43 08/26/2015  64188654     45793        5137                                                           

6180 snmp             09:01:44 08/26/2015  64193206     45793        4552                                                          

6181 snmp             09:02:44 08/26/2015  64197943     45793        4737                                                           

6182 snmp             09:03:44 08/26/2015  64202410     45793        4467                                                          

6183 snmp             09:04:44 08/26/2015  64206527     45793        4117                                                           

6184 snmp             09:05:44 08/26/2015  64209964     45793        3437                                                          

6185 snmp             09:06:45 08/26/2015  64214364     45793        4400                                                          

6186 snmp             09:07:47 08/26/2015  64219437     45793        5073                                                          

6187 snmp             09:08:47 08/26/2015  64224903     45793        5466                                                          

6188 snmp             09:09:47 08/26/2015  64236050     45793        11147                                                         

6189 snmp             09:10:48 08/26/2015  64236341     45793        291                                                           

6190 snmp             09:11:48 08/26/2015  64236914     45793        573                                                           

6191 snmp             09:12:48 08/26/2015  64237331     45793        417                                                           

6192 snmp             09:13:48 08/26/2015  64237515     45793        184                                                           

6193 snmp             09:14:49 08/26/2015  64240246     45793        2731                                                          

6194 snmp             09:15:50 08/26/2015  64246013     45793        5767                                                          

6195 snmp             09:16:50 08/26/2015  64257384     45793        11371                                                         

6196 snmp             09:17:51 08/26/2015  64262551     45793        5167                                                          

6197 snmp             09:18:51 08/26/2015  64262818     45793        267                                                           

6198 snmp             09:19:51 08/26/2015  64262966     45793        148                                                           

6199 snmp             09:20:51 08/26/2015  64263243     45793        277                                                           

6200 snmp             09:21:52 08/26/2015  64268275     45793        5032                                                           

6201 snmp             09:22:53 08/26/2015  64274947     45826        6672                                                          

6202 snmp             09:23:53 08/26/2015  64285677     45826        10730                                                          

6203 snmp             09:24:53 08/26/2015  64286049     45826        372                                                           

6204 snmp             09:25:53 08/26/2015  64286330     45826        281                                                           

6205 snmp             09:26:53 08/26/2015  64286893     45826        563                                                            

6206 snmp             09:27:54 08/26/2015  64289300     45826        2407                                                          

6207 snmp             09:28:54 08/26/2015  64289452     45826        152                                                            

6208 snmp             09:29:54 08/26/2015  64292831     45826        3379                                                          

6209 snmp             09:30:56 08/26/2015  64298285     45847        5454                                                                                                                                                                      

[luohu-ac-hidecmd]fpl-diag showcplog 9,25,12,0,120                                                                                 

                                                                                                                                    

idx proto            date                 rx           drop         delta                                                          

--------------------------------------------------------------------------                                                          

4927 snmp             12:00:28 08/25/2015  59070175     38691        5390                                                          

4928 snmp             12:01:29 08/25/2015  59075259     38691        5084                                                           

4929 snmp             12:02:29 08/25/2015  59080537     38691        5278                                                          

4930 snmp             12:03:30 08/25/2015  59085157     38691        4620                                                           

4931 snmp             12:04:30 08/25/2015  59088850     38691        3693                                                          

4932 snmp             12:05:30 08/25/2015  59091807     38691        2957                                                           

4933 snmp             12:06:31 08/25/2015  59095292     38691        3485                                                          

4934 snmp             12:07:32 08/25/2015  59100481     38730        5189                                                          

4935 snmp             12:08:32 08/25/2015  59114309     38730        13828                                                         

4936 snmp             12:09:32 08/25/2015  59117148     38730        2839                                                          

4937 snmp             12:10:33 08/25/2015  59117459     38730        311                                                           

4938 snmp             12:11:33 08/25/2015  59117844     38730        385                                                           

4939 snmp             12:12:33 08/25/2015  59118378     38730        534                                                           

4940 snmp             12:13:33 08/25/2015  59118587     38730        209                                                           

4941 snmp             12:14:33 08/25/2015  59120005     38730        1418                                                          

4942 snmp             12:15:34 08/25/2015  59125337     38766        5332                                                          

4943 snmp             12:16:35 08/25/2015  59136055     38766        10718                                                         

4944 snmp             12:17:35 08/25/2015  59143441     38766        7386                                                          

4945 snmp             12:18:35 08/25/2015  59143770     38766        329                                                           

4946 snmp             12:19:35 08/25/2015  59143918     38766        148                                                           

4947 snmp             12:20:35 08/25/2015  59144191     38766        273                                                           

4948 snmp             12:21:36 08/25/2015  59147785     38766        3594                                                          

4949 snmp             12:22:37 08/25/2015  59153320     38766        5535                                                           

4950 snmp             12:23:37 08/25/2015  59166457     38766        13137                                                         

4951 snmp             12:24:37 08/25/2015  59166853     38766        396                                                            

4952 snmp             12:25:38 08/25/2015  59167164     38766        311                                                           

4953 snmp             12:26:38 08/25/2015  59167609     38766        445                                                           

4954 snmp             12:27:38 08/25/2015  59170076     38766        2467                                                           

4955 snmp             12:28:38 08/25/2015  59170285     38766        209                                                           

4956 snmp             12:29:39 08/25/2015  59172233     38766        1948                                                           

4957 snmp             12:30:40 08/25/2015  59177713     38766        5480                                                          

4958 snmp             12:31:41 08/25/2015  59182753     38766        5040                                                           

4959 snmp             12:32:41 08/25/2015  59188273     38766        5520                                                          

4960 snmp             12:33:41 08/25/2015  59193132     38766        4859                                                           

4961 snmp             12:34:41 08/25/2015  59196634     38766        3502                                                          

4962 snmp             12:35:41 08/25/2015  59198925     38766        2291                                                           

4963 snmp             12:36:42 08/25/2015  59202902     38766        3977                                                          

4964 snmp             12:37:43 08/25/2015  59208097     38766        5195                                                          

4965 snmp             12:38:43 08/25/2015  59223184     38766        15087                                                         

4966 snmp             12:39:43 08/25/2015  59223622     38766        438                                                           

4967 snmp             12:40:43 08/25/2015  59223921     38766        299                                                           

4968 snmp             12:41:45 08/25/2015  59224484     38766        563                                                           

4969 snmp             12:42:45 08/25/2015  59224840     38766        356                                                           

4970 snmp             12:43:45 08/25/2015  59225049     38766        209                                                           

4971 snmp             12:44:46 08/25/2015  59227643     38766        2594                                                          

4972 snmp             12:45:47 08/25/2015  59233308     38766        5665                                                          

4973 snmp             12:46:47 08/25/2015  59246599     38766        13291                                                         

4974 snmp             12:47:47 08/25/2015  59249941     38766        3342                                                          

4975 snmp             12:48:47 08/25/2015  59250238     38766        297                                                           

4976 snmp             12:49:47 08/25/2015  59250386     38766        148                                                           

4977 snmp             12:50:47 08/25/2015  59250660     38766        274                                                           

4978 snmp             12:51:48 08/25/2015  59255243     38766        4583                                                          

4979 snmp             12:52:49 08/25/2015  59262685     38766        7442                                                           

4980 snmp             12:53:50 08/25/2015  59273005     38766        10320                                                         

4981 snmp             12:54:50 08/25/2015  59273373     38766        368                                                           

4982 snmp             12:55:50 08/25/2015  59273654     38766        281                                                            

4983 snmp             12:56:50 08/25/2015  59274216     38766        562                                                           

4984 snmp             12:57:50 08/25/2015  59276625     38766        2409                                                           

4985 snmp             12:58:50 08/25/2015  59276774     38766        149                                                           

4986 snmp             12:59:51 08/25/2015  59279633     38766        2859                                                           

4987 snmp             13:00:52 08/25/2015  59285492     38766        5859                                                          

4988 snmp             13:01:53 08/25/2015  59290062     38766        4570                                                           

4989 snmp             13:02:53 08/25/2015  59295000     38766        4938                                                          

4990 snmp             13:03:53 08/25/2015  59299273     38766        4273                                                           

4991 snmp             13:04:53 08/25/2015  59302293     38766        3020                                                          

4992 snmp             13:05:53 08/25/2015  59304788     38766        2495                                                          

4993 snmp             13:06:55 08/25/2015  59310142     38766        5354                                                          

4994 snmp             13:07:56 08/25/2015  59320196     38809        10054                                                         

4995 snmp             13:08:56 08/25/2015  59329105     38809        8909                                                          

4996 snmp             13:09:56 08/25/2015  59329473     38809        368                                                           

4997 snmp             13:10:56 08/25/2015  59329758     38809        285                                                           

4998 snmp             13:11:56 08/25/2015  59330324     38809        566                                                           

4999 snmp             13:12:57 08/25/2015  59330743     38809        419                                                           

5000 snmp             13:13:57 08/25/2015  59330892     38809        149                                                           

5001 snmp             13:14:57 08/25/2015  59334366     38809        3474                                                          

5002 snmp             13:15:59 08/25/2015  59340041     38809        5675                                                          

5003 snmp             13:16:59 08/25/2015  59353516     38809        13475                                                         

5004 snmp             13:17:59 08/25/2015  59355808     38809        2292                                                          

5005 snmp             13:18:59 08/25/2015  59356075     38809        267                                                           

5006 snmp             13:19:59 08/25/2015  59356223     38809        148                                                           

5007 snmp             13:20:59 08/25/2015  59356688     38809        465                                                            

5008 snmp             13:22:00 08/25/2015  59362345     38809        5657                                                          

5009 snmp             13:23:01 08/25/2015  59373482     38809        11137                                                          

5010 snmp             13:24:01 08/25/2015  59379010     38809        5528                                                          

5011 snmp             13:25:01 08/25/2015  59379193     38809        183                                                           

5012 snmp             13:26:01 08/25/2015  59379474     38809        281                                                            

5013 snmp             13:27:02 08/25/2015  59380126     38809        652                                                           

5014 snmp             13:28:02 08/25/2015  59382449     38809        2323                                                           

5015 snmp             13:29:02 08/25/2015  59382657     38809        208                                                           

5016 snmp             13:30:03 08/25/2015  59386573     38809        3916                                                           

5017 snmp             13:31:04 08/25/2015  59391996     38809        5423                                                          

5018 snmp             13:32:04 08/25/2015  59397437     38809        5441                                                           

5019 snmp             13:33:05 08/25/2015  59402835     38809        5398                                                          

5020 snmp             13:34:05 08/25/2015  59406677     38809        3842                                                           

5021 snmp             13:35:05 08/25/2015  59410300     38809        3623                                                          

5022 snmp             13:36:05 08/25/2015  59411072     38809        772                                                            

5023 snmp             13:37:06 08/25/2015  59416706     38809        5634                                                          

5024 snmp             13:38:07 08/25/2015  59429805     38809        13099                                                         

5025 snmp             13:39:07 08/25/2015  59435026     38809        5221                                                          

5026 snmp             13:40:07 08/25/2015  59435205     38809        179                                                           

5027 snmp             13:41:07 08/25/2015  59435486     38809        281                                                           

5028 snmp             13:42:08 08/25/2015  59436142     38809        656                                                           

5029 snmp             13:43:08 08/25/2015  59436468     38809        326                                                           

5030 snmp             13:44:08 08/25/2015  59436753     38809        285                                                           

5031 snmp             13:45:09 08/25/2015  59441061     38809        4308                                                          

5032 snmp             13:46:10 08/25/2015  59447018     38830        5957                                                          

5033 snmp             13:47:10 08/25/2015  59461016     38830        13998                                                         

5034 snmp             13:48:10 08/25/2015  59461606     38830        590                                                           

5035 snmp             13:49:10 08/25/2015  59461814     38830        208                                                           

5036 snmp             13:50:11 08/25/2015  59462031     38830        217                                                           

5037 snmp             13:51:11 08/25/2015  59463399     38830        1368                                                           

5038 snmp             13:52:12 08/25/2015  59468913     38833        5514                                                          

5039 snmp             13:53:13 08/25/2015  59474052     38833        5139                                                          

5040 snmp             13:54:13 08/25/2015  59479566     38833        5514                                                           

5041 snmp             13:55:13 08/25/2015  59484411     38833        4845                                                          

5042 snmp             13:56:13 08/25/2015  59488401     38833        3990                                                           

5043 snmp             13:57:14 08/25/2015  59492414     38833        4013                                                          

5044 snmp             13:58:14 08/25/2015  59495049     38833        2635                                                           

5045 snmp             13:59:14 08/25/2015  59496820     38833        1771                                                          

5046 snmp             14:00:15 08/25/2015  59501776     38833        4956                                                           

[luohu-ac-hidecmd]                                                                                                                 

[luohu-ac-hidecmd]dis cpu hi                                                                                                        

100%|  #                  #                 #           #      #                                                                   

 95%|  #      #           #                 #     ##    #      #                                                                    

 90%|  #      #           #           #     #     ##    #      #                                                                   

 85%|  #      #           #           #     #     ##    #      #                                                                   

 80%|  #      #           #           #     #     ##    #      #                                                                   

 75%|  #      #           #           #     #     ##    #      #                                                                   

 70%|  #      #    #      #     #     #    ##     ##    #      #                                                                   

 65%| ##     ##    #     ###   ##     ##   ##    ##### ##     ##                                                                   

 60%| ##     ##    ##   #### ####     ##   ##   ##########    ###                                                                  

 55%|###     ##   ###   #########    ###  ##################  ###                                                                  

 50%|#### #  ##   ### ########### ###### ########################                                                                  

 45%|###### #### ################################################                                                                  

 40%|############################################################                                                                  

 35%|############################################################                                                                  

 30%|############################################################                                                                  

 25%|############################################################                                                                  

 20%|############################################################                                                                   

 15%|############################################################                                                                  

 10%|############################################################                                                                   

  5%|############################################################                                                                  

     ------------------------------------------------------------                                                                  

              10        20        30        40        50        60  (minutes)                                                       

                      cpu-usage last 60 minutes(SYSTEM)                                                                            

[luohu-ac-hidecmd]

周期性的出现cpu利用率达到100%,其中AGNT进程偏高,从fpl-daig showcplog 来看snmp报文量和cpu利用率关系紧密。

从分析来看 ,CPU高的主要原因在agent,网管在510分钟左右每周期会向ac读取信息,从snmp报文量峰值和cpu history中记录cpu高比较匹配。

1. 首先要清楚网管主要在干嘛 ?

2. IMC上几乎取消了所有的无线性能监控指标

3 设备轮询时间设置为最大。

4 AC上取消了trap信息上传到IMC

5.IMC上无线终端轮询周期设置为30分钟

方法:在iMC服务器的安装目录下,找到imc/server/conf/qvdm_wlan.conf,先备份“qvdm_wlan.conf”文件,查看原文件中“StaPollIntv”字段。

优化之后观察一段时间后,采取以上措施均没有改善 ,还是周期性出现CPU利用率高,依然是AGNT进程引起

   其后在WSM服务器上抓包,收集包含该无线插卡CPU高的过程的抓包;和iMC/server/conf/logimcwlandmimcwipsdmimcwlanperfdm的日志,然后在资源中把这个AC取消管理,观察是不是还会高。

经分析 :

使用相关工具 ,在IMC上关一下浙江移动定制的采集指标,确认下是不是这个原因引起的。

 这个开关功能,已经合入最新的补丁WSM组件版本。

 关闭后,运行完脚本后观察了CPU使用率正常

    关于IMC WSM,浙江移动定制有十多个监视指标,15分钟采集一次,但个别节点处理时,一次性获取次数会比较多,这是当时抓包里显示出来的现象,有可能会导致CPU高。这个问题已经在最新的WSM版本中进行优化修改,并且这些指标默认是关闭的。

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