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2024-04-19 - 05:25
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Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rack4slot6.osadl.org (updated Fri Apr 19, 2024 00:44:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
15938521130,109pltrace0-21swapper/519:05:185
15938521130,104pltrace0-21swapper/119:05:141
18728521110,103pltrace0-21swapper/219:08:532
15938521090,97pltrace0-21swapper/319:05:113
15938521030,94pltrace0-21swapper/719:05:227
18728521000,88pltrace0-21swapper/619:08:176
114492780,0sleep10-21swapper/119:50:171
1895326141,16sleep00-21swapper/019:09:230
1869925743,10sleep40-21swapper/419:06:054
784752310,4pltrace0-21swapper/720:45:167
2630752280,0pltrace0-21swapper/720:20:197
2909552260,1pltrace29099-21pltrace-run20:21:132
2073052250,3pltrace0-21swapper/720:09:537
1916799230,16cyclictest0-21swapper/100:40:011
1392452210,0pltrace0-21swapper/723:50:487
1918399200,1cyclictest0-21swapper/419:25:194
2073052190,0pltrace0-21swapper/720:11:057
1917899192,8cyclictest29586-21expr22:20:113
1917899190,17cyclictest20575-21proc_pri23:00:193
1512052190,2pltrace0-21swapper/719:59:537
19167991816,1cyclictest3148-21ntpdc00:25:191
1916399180,17cyclictest6422-21grep20:40:140
2512352170,14pltrace54-21ksoftirqd/400:09:484
19195991712,3cyclictest0-21swapper/723:46:047
19183991711,3cyclictest0-21swapper/423:03:094
1918399170,16cyclictest0-21swapper/423:09:234
1917899174,5cyclictest0-21swapper/321:16:113
1917899170,8cyclictest7038-21grep23:35:113
1917899170,7cyclictest29865-21cat00:15:203
1917899170,4cyclictest0-21swapper/300:10:133
19173991711,5cyclictest0-21swapper/222:31:242
1916799179,5cyclictest30-21ksoftirqd/120:50:121
19167991715,1cyclictest25431-21taskset19:19:131
19167991714,2cyclictest6208-21/usr/sbin/munin23:35:191
19167991714,2cyclictest4723-21taskset22:34:461
19167991711,3cyclictest0-21swapper/123:15:011
19167991711,3cyclictest0-21swapper/121:41:531
19163991711,5cyclictest0-21swapper/020:35:290
895552160,10pltrace10936-21cat21:45:182
784752160,2pltrace0-21swapper/220:43:262
2741852160,2pltrace0-21swapper/221:17:552
227252160,4pltrace0-21swapper/720:33:037
19195991613,2cyclictest22727-21perl23:05:147
1919599160,8cyclictest0-21swapper/723:56:357
1919199160,15cyclictest0-21swapper/622:51:106
1919199160,15cyclictest0-21swapper/620:23:156
19186991611,3cyclictest0-21swapper/500:28:505
1918699161,14cyclictest0-21swapper/522:35:395
1918699160,15cyclictest0-21swapper/500:37:025
19183991611,2cyclictest0-21swapper/422:47:394
19183991610,5cyclictest0-21swapper/420:37:334
1918399161,7cyclictest0-21swapper/421:40:474
1918399160,8cyclictest0-21swapper/419:50:404
1918399160,15cyclictest0-21swapper/400:28:184
1917899169,6cyclictest1065-17auditd00:00:003
19178991611,3cyclictest0-21swapper/323:32:043
1917899160,8cyclictest0-21swapper/320:33:533
1917899160,7cyclictest15061-21wget20:55:163
19173991611,4cyclictest0-21swapper/200:10:322
1917399160,15cyclictest0-21swapper/219:54:292
1916799168,5cyclictest30-21ksoftirqd/119:30:141
19167991614,1cyclictest1926-21cut19:35:121
19167991613,2cyclictest31163-21expr23:20:131
19167991613,2cyclictest1132-21snmpd21:46:241
1916799160,15cyclictest0-21swapper/122:19:511
1916799160,15cyclictest0-21swapper/121:33:491
19163991611,3cyclictest0-21swapper/023:23:250
1916399161,8cyclictest0-21swapper/021:23:330
1916399161,8cyclictest0-21swapper/020:14:150
1793052160,7pltrace0-21swapper/720:04:257
167152160,11pltrace0-21swapper/222:28:342
895552150,3pltrace9673-21cut21:45:100
556052150,0pltrace0-21swapper/723:31:257
2402152150,3pltrace0-21swapper/723:10:587
1919599150,8cyclictest0-21swapper/722:45:317
1919199159,4cyclictest0-21swapper/620:55:346
19191991510,3cyclictest0-21swapper/620:47:076
19191991510,3cyclictest0-21swapper/600:00:326
1919199150,7cyclictest0-21swapper/620:39:076
1919199150,4cyclictest0-21swapper/621:46:506
1918699151,7cyclictest0-21swapper/523:14:445
1918699151,7cyclictest0-21swapper/500:07:005
1918699150,8cyclictest0-21swapper/520:58:525
1918699150,8cyclictest0-21swapper/500:15:395
1918399159,5cyclictest0-21swapper/422:02:564
1918399159,4cyclictest0-21swapper/423:55:034
19183991511,3cyclictest0-21swapper/400:24:484
1918399150,8cyclictest0-21swapper/423:15:584
1918399150,7cyclictest0-21swapper/422:20:504
1918399150,7cyclictest0-21swapper/421:24:444
1918399150,4cyclictest0-21swapper/422:57:524
1918399150,14cyclictest0-21swapper/421:34:054
19178991511,3cyclictest0-21swapper/322:40:213
19178991511,2cyclictest0-21swapper/319:41:043
1917899150,9cyclictest30464-21cpuspeed_turbos23:20:103
1917899150,4cyclictest0-21swapper/322:15:343
1917899150,4cyclictest0-21swapper/300:24:003
1917899150,3cyclictest0-21swapper/319:59:543
1917899150,15cyclictest0-21swapper/321:36:533
1917899150,14cyclictest0-21swapper/321:14:043
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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