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2025-11-20 - 21:31
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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
Characteristics of all highest latencies:
System rackcslot2.osadl.org (updated Thu Nov 20, 2025 12:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
89942770,0sleep10-21swapper/110:05:391
47932700,2sleep11342099cyclictest12:07:001
1285727058,8sleep00-21swapper/007:02:500
118602700,1sleep011859-21unixbench_singl11:32:180
1298226954,8sleep10-21swapper/107:04:071
13420994010,29cyclictest0-21swapper/110:10:491
1341999345,3cyclictest91rcu_preempt10:22:040
1341999345,1cyclictest91rcu_preempt08:27:040
13420993311,0cyclictest91rcu_preempt09:34:101
1341999337,2cyclictest91rcu_preempt09:37:050
1341999334,2cyclictest91rcu_preempt11:22:080
13419993331,1cyclictest81ktimersoftd/007:27:000
13420993227,1cyclictest24-21ksoftirqd/110:22:041
13420993227,1cyclictest24-21ksoftirqd/108:27:041
13419993214,4cyclictest91rcu_preempt10:06:210
13419993212,2cyclictest91rcu_preempt12:33:070
1342099319,9cyclictest24-21ksoftirqd/111:02:431
13420993131,0cyclictest231ktimersoftd/111:12:541
13419993129,2cyclictest0-21swapper/009:22:360
13420993023,2cyclictest24-21ksoftirqd/111:22:081
1341999305,1cyclictest91rcu_preempt10:47:000
13419993021,3cyclictest7-21ksoftirqd/010:27:440
13420992927,1cyclictest24-21ksoftirqd/108:02:041
13420992921,3cyclictest24-21ksoftirqd/110:56:291
13420992916,7cyclictest24-21ksoftirqd/110:47:001
1342099290,2cyclictest24-21ksoftirqd/110:57:001
13419992926,1cyclictest7-21ksoftirqd/010:34:470
13419992920,7cyclictest23244-21apache209:52:060
13420992824,1cyclictest24-21ksoftirqd/112:21:311
13420992810,15cyclictest0-21swapper/111:49:211
1341999287,2cyclictest91rcu_preempt10:56:290
1341999286,0cyclictest91rcu_preempt11:29:060
1341999284,1cyclictest91rcu_preempt12:06:340
13419992825,3cyclictest7-21ksoftirqd/010:46:320
13419992825,3cyclictest0-21swapper/011:42:040
13419992825,2cyclictest7-21ksoftirqd/011:18:480
13419992823,4cyclictest7-21ksoftirqd/011:09:100
13420992724,1cyclictest24-21ksoftirqd/107:22:571
13420992721,3cyclictest24-21ksoftirqd/110:38:071
13420992712,5cyclictest24-21ksoftirqd/112:36:021
1342099270,1cyclictest91rcu_preempt07:47:051
1341999277,2cyclictest91rcu_preempt10:38:070
1341999275,1cyclictest91rcu_preempt11:03:020
13419992725,1cyclictest0-21swapper/009:31:460
1342099269,5cyclictest24-21ksoftirqd/112:30:191
1342099269,1cyclictest24-21ksoftirqd/110:00:471
1342099265,14cyclictest91rcu_preempt11:28:351
13420992622,1cyclictest24-21ksoftirqd/111:56:271
13420992619,5cyclictest817-21apache209:14:531
13420992610,1cyclictest0-21swapper/111:17:071
13419992624,2cyclictest0-21swapper/009:36:260
13419992624,2cyclictest0-21swapper/007:21:570
13419992623,2cyclictest6922-21load08:12:050
13419992621,4cyclictest0-21swapper/009:08:250
13419992610,3cyclictest91rcu_preempt11:56:270
1341999260,1cyclictest0-21swapper/010:07:250
1341999260,0cyclictest0-21swapper/012:14:420
1342099254,3cyclictest24-21ksoftirqd/110:45:011
13420992524,1cyclictest0-21swapper/109:51:351
1342099252,2cyclictest91rcu_preempt09:42:101
13420992522,2cyclictest24-21ksoftirqd/109:07:061
13420992516,6cyclictest24-21ksoftirqd/111:09:591
13420992516,3cyclictest231ktimersoftd/109:37:351
13420992510,8cyclictest24-21ksoftirqd/111:32:081
13420992510,7cyclictest0-21swapper/108:47:061
13419992523,1cyclictest15593-21hddtemp_smartct12:21:570
13419992522,3cyclictest0-21swapper/009:12:010
13419992522,2cyclictest9113-21ps08:17:060
13419992521,4cyclictest0-21swapper/007:57:010
13419992521,3cyclictest28511-21grep11:12:050
13419992521,3cyclictest24848-21awk08:57:060
13419992521,3cyclictest15739-21ssh10:13:190
13419992516,1cyclictest7-21ksoftirqd/011:59:590
13419992513,11cyclictest0-21swapper/008:04:380
13419992510,4cyclictest0-21swapper/009:17:010
1342099243,3cyclictest91rcu_preempt12:15:041
13420992419,4cyclictest23244-21apache210:26:591
13420992419,3cyclictest24-21ksoftirqd/111:42:111
13420992414,7cyclictest24-21ksoftirqd/109:53:551
1341999249,14cyclictest14576-21fschecks_count11:36:590
13419992422,2cyclictest30133-21/usr/sbin/munin07:47:050
13419992422,1cyclictest22674-21python08:52:180
13419992422,1cyclictest10681-21irqstats08:21:590
13419992421,2cyclictest18807-21awk10:17:060
13419992410,7cyclictest81ktimersoftd/007:17:020
13420992321,1cyclictest17760-21if_eth007:17:001
13420992319,2cyclictest692-21ntpd07:28:051
13420992318,3cyclictest31838-21ssh11:59:241
1342099230,2cyclictest91rcu_preempt10:32:051
13419992321,2cyclictest0-21swapper/010:57:000
13419992321,1cyclictest5657-21users08:07:070
13419992320,2cyclictest28131-21users09:47:180
13419992320,2cyclictest24544-21ssh09:43:060
13419992320,2cyclictest23324-21apache_accesses07:31:570
13419992317,5cyclictest14075-21ssh12:19:460
13419992314,5cyclictest0-21swapper/009:58:340
13419992311,6cyclictest0-21swapper/011:50:490
1342099226,3cyclictest91rcu_preempt09:02:011
1342099222,9cyclictest0-21swapper/107:57:001
13420992222,0cyclictest0-21swapper/112:02:261
1342099222,19cyclictest231ktimersoftd/108:07:031
13420992216,1cyclictest24-21ksoftirqd/109:21:571
13419992220,2cyclictest0-21swapper/012:07:530
13419992220,2cyclictest0-21swapper/008:46:440
13419992220,1cyclictest31542-21irqstats07:51:590
13419992219,2cyclictest21381-21ssh12:30:180
13419992217,3cyclictest7-21ksoftirqd/008:37:040
1342099215,13cyclictest0-21swapper/108:36:581
1342099214,10cyclictest0-21swapper/108:16:591
13420992117,1cyclictest13636-21rm09:29:481
13420992112,6cyclictest6252-21kworker/u4:012:23:131
13420992110,8cyclictest0-21swapper/107:52:491
1342099210,3cyclictest0-21swapper/111:41:341
1341999217,12cyclictest0-21swapper/007:37:570
13419992119,1cyclictest27174-21apache_accesses07:41:590
13419992118,3cyclictest0-21swapper/008:47:070
13419992110,4cyclictest81ktimersoftd/007:12:000
179562200,1sleep10-21swapper/108:41:571
1555022010,0sleep10-21swapper/110:12:551
1342099205,8cyclictest0-21swapper/107:41:591
1342099204,10cyclictest0-21swapper/108:22:031
13420992010,6cyclictest0-21swapper/107:37:571
13419992018,1cyclictest25540-21apache_processe09:01:550
13419992016,3cyclictest13977-21/usr/sbin/munin08:32:030
13419992011,8cyclictest14856-21chrt07:08:240
13420991910,5cyclictest0-21swapper/108:32:081
1342099190,1cyclictest24255-21ls08:57:021
13420991816,1cyclictest5260-21ssh09:18:191
13420991811,3cyclictest0-21swapper/107:31:571
13420991810,5cyclictest0-21swapper/110:20:151
13420991810,2cyclictest0-21swapper/108:12:001
1342099179,2cyclictest24-21ksoftirqd/108:52:001
13420991614,1cyclictest13441-21apache_processe07:06:581
13420991512,2cyclictest15360-21apache_processe07:12:001
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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