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Posted to issues@trafficserver.apache.org by "Susan Hinrichs (JIRA)" <ji...@apache.org> on 2014/11/20 19:32:34 UTC
[jira] [Closed] (TS-2847) cpu usage like a roller coaster
occasionally
[ https://issues.apache.org/jira/browse/TS-2847?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Susan Hinrichs closed TS-2847.
------------------------------
Resolution: Incomplete
Fix Version/s: (was: sometime)
Need some more information to investigate.
> cpu usage like a roller coaster occasionally
> --------------------------------------------
>
> Key: TS-2847
> URL: https://issues.apache.org/jira/browse/TS-2847
> Project: Traffic Server
> Issue Type: Test
> Components: Network
> Reporter: lei.xu
>
> The data of tsar is shown below:
> Time ---cpu-- ---mem-- ---tcp-- -----traffic----
> 27/05/14-08:05 6.74 70.56 5.48 1.2M 5.4M
> 27/05/14-08:10 5.35 70.63 5.41 890.9K 4.4M
> 27/05/14-08:15 4.57 70.76 5.88 990.8K 4.9M
> 27/05/14-08:20 4.51 70.88 7.10 833.0K 5.2M
> 27/05/14-08:25 9.93 71.08 6.59 779.6K 4.1M
> 27/05/14-08:30 6.60 71.12 6.02 865.8K 4.8M
> 27/05/14-08:35 42.02 71.52 12.89 582.1K 1.9M
> 27/05/14-08:40 43.41 19.30 13.48 989.3K 1.4M
> 27/05/14-08:45 4.66 21.08 6.61 1.0M 4.9M
> 27/05/14-08:50 4.97 21.72 6.12 1.0M 5.7M
> 27/05/14-08:55 4.67 22.27 5.58 1.0M 5.3M
> 27/05/14-09:00 4.77 22.90 7.58 938.2K 4.9M
> 27/05/14-09:05 4.82 23.17 7.04 1.0M 5.3M
> 27/05/14-09:10 4.43 23.62 5.84 977.4K 4.8M
> 27/05/14-09:15 4.23 24.10 6.28 948.8K 4.8M
> 27/05/14-09:20 4.09 24.59 5.23 966.8K 4.9M
> 27/05/14-09:25 3.96 25.02 5.98 767.5K 4.3M
> 27/05/14-09:30 4.07 25.44 6.79 768.7K 4.8M
> 27/05/14-09:35 4.18 25.87 6.40 904.9K 4.9M
> May 27 08:38:00 traffic_cop[28952]: server heartbeat failed [2]
> when the cpu usage is increasing suddenly, gdb the process of traffic_server.
> 182 pthread_cond_timedwait@@GLIBC_2.3.2
> 27 epoll_wait
> 8 nanosleep
> 4 accept
> 2 pread64
> 1 msync
> when the cpu usage is normal, gdb the process of traffic_server.
> 91 pthread_cond_timedwait@@GLIBC_2.3.2
> 14 epoll_wait
> 4 nanosleep
> 2 accept
> 1 pread64
> My English is poor, sorry.
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