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2026-05-15 - 03:52
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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 the highest latencies:
System rackcslot2.osadl.org (updated Fri May 15, 2026 00:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2047621990,3sleep120479-21pmu-power19:04:161
207672680,2sleep12158299cyclictest00:23:311
1965326755,8sleep00-21swapper/019:04:040
170462670,2sleep12158299cyclictest22:09:081
57632660,1sleep10-21swapper/122:35:461
21582993434,0cyclictest0-21swapper/120:15:051
2158199343,1cyclictest91rcu_preempt19:34:120
21582993210,21cyclictest0-21swapper/121:27:331
21581993210,18cyclictest0-21swapper/021:40:310
2158199316,3cyclictest91rcu_preempt22:39:160
2158199312,0cyclictest91rcu_preempt22:44:120
2158199311,6cyclictest0-21swapper/019:49:160
21581993110,2cyclictest0-21swapper/022:26:310
21581993110,19cyclictest0-21swapper/000:02:560
2158199310,30cyclictest0-21swapper/022:13:280
2158199300,2cyclictest0-21swapper/023:04:170
2158199297,3cyclictest91rcu_preempt21:57:330
2158199294,2cyclictest91rcu_preempt21:34:150
21581992910,14cyclictest28685-21ssh23:49:130
21581992826,1cyclictest19169-21ssh00:20:170
21581992817,7cyclictest0-21swapper/000:36:360
21581992817,5cyclictest7-21ksoftirqd/000:28:260
2158199280,10cyclictest0-21swapper/020:49:070
2158199274,3cyclictest91rcu_preempt21:22:110
2158199273,3cyclictest91rcu_preempt22:15:340
21581992724,2cyclictest0-21swapper/019:19:100
21581992721,2cyclictest21579-21cyclictest21:09:090
21581992720,4cyclictest0-21swapper/022:59:180
21582992626,0cyclictest0-21swapper/120:40:291
21582992626,0cyclictest0-21swapper/119:20:451
2158299260,0cyclictest0-21swapper/119:11:561
2158199269,12cyclictest0-21swapper/021:58:570
2158199264,2cyclictest91rcu_preempt00:09:130
21581992624,2cyclictest0-21swapper/020:34:180
21581992619,4cyclictest3499-21apache223:25:160
2158199260,18cyclictest0-21swapper/020:44:160
21582992520,4cyclictest3499-21apache200:15:481
2158299251,22cyclictest30524-21kworker/1:120:56:081
21582992510,8cyclictest0-21swapper/122:25:511
2158199254,2cyclictest91rcu_preempt00:31:340
21581992522,2cyclictest2490-21memory21:49:130
2158199251,2cyclictest91rcu_preempt23:18:140
2158299241,22cyclictest8103-21kworker/1:119:55:241
2158299241,22cyclictest0-21swapper/123:53:151
21582992410,9cyclictest0-21swapper/122:00:081
21581992421,3cyclictest7-21ksoftirqd/023:44:090
21581992421,2cyclictest998-21/usr/sbin/munin21:04:070
21581992419,5cyclictest0-21swapper/022:31:100
21581992418,2cyclictest7-21ksoftirqd/023:54:150
21581992411,10cyclictest7-21ksoftirqd/023:09:190
2145122410,0sleep00-21swapper/020:31:160
2158299235,17cyclictest0-21swapper/100:09:181
2158299233,11cyclictest0-21swapper/100:29:081
21582992322,1cyclictest0-21swapper/100:36:391
21582992319,3cyclictest3473-21apache222:30:001
21582992313,6cyclictest12545-21ssh22:44:281
21582992311,0cyclictest21579-21cyclictest23:30:041
21582992310,7cyclictest0-21swapper/121:34:141
21581992321,1cyclictest3733-21apache_accesses22:34:080
21581992321,1cyclictest29819-21irqstats19:29:110
21581992321,1cyclictest2644-21apache_processe19:44:070
21581992319,3cyclictest28138-21ntp_states19:24:120
21581992319,3cyclictest0-21swapper/022:51:040
21581992318,3cyclictest7-21ksoftirqd/022:20:410
21581992317,6cyclictest0-21swapper/023:20:400
21581992313,8cyclictest0-21swapper/022:57:450
21581992310,7cyclictest0-21swapper/021:27:280
21581992310,1cyclictest0-21swapper/000:06:030
2158199230,5cyclictest0-21swapper/021:44:100
2158299226,8cyclictest0-21swapper/119:24:061
2158299225,10cyclictest0-21swapper/122:14:111
21582992222,0cyclictest0-21swapper/119:48:321
21582992217,2cyclictest100450irq/109-eth1-tx23:38:021
21582992213,4cyclictest859-21ssh23:13:221
2158299221,20cyclictest2768-21diskmemload22:58:311
21582992210,4cyclictest0-21swapper/123:05:461
21582992210,2cyclictest0-21swapper/122:19:061
21582992210,10cyclictest0-21swapper/121:30:131
21581992221,1cyclictest0-21swapper/022:04:150
21581992219,2cyclictest2768-21diskmemload00:14:370
21581992219,2cyclictest24579-21ntp_states20:39:130
21581992217,4cyclictest22305-21ssh21:33:300
21581992214,7cyclictest24154-21memory19:14:120
21581992210,4cyclictest100250irq/107-eth1-rx23:31:180
21581992210,0cyclictest0-21swapper/021:14:230
2158299218,11cyclictest0-21swapper/121:19:081
2158299214,8cyclictest0-21swapper/121:44:081
2158299213,9cyclictest0-21swapper/123:43:061
2158299212,3cyclictest0-21swapper/121:42:581
2158299212,13cyclictest0-21swapper/121:55:271
21582992114,2cyclictest4712-21kworker/u4:122:49:241
21582992111,8cyclictest3499-21apache223:48:381
21582992110,6cyclictest0-21swapper/119:39:071
21582992110,3cyclictest0-21swapper/119:49:131
2158299210,11cyclictest0-21swapper/119:14:131
2158199219,5cyclictest81ktimersoftd/023:34:030
21581992119,2cyclictest0-21swapper/020:19:080
21581992119,1cyclictest31476-21apache_accesses20:59:080
21581992118,2cyclictest22947-21chrt19:09:490
21581992118,2cyclictest13233-21grep20:09:140
21581992114,1cyclictest91rcu_preempt20:25:340
21581992112,8cyclictest81ktimersoftd/019:54:080
2158299203,11cyclictest0-21swapper/122:04:131
2158299201,18cyclictest0-21swapper/123:19:441
21582992010,7cyclictest0-21swapper/100:26:291
21582992010,4cyclictest0-21swapper/121:18:131
2158299200,19cyclictest0-21swapper/122:40:221
21581992018,2cyclictest0-21swapper/023:40:360
21581992010,6cyclictest81ktimersoftd/020:14:070
1103822010,0sleep10-21swapper/123:25:431
270221910,0sleep10-21swapper/123:58:301
2158299192,13cyclictest0-21swapper/100:06:511
21582991913,4cyclictest3473-21apache221:11:351
21582991910,7cyclictest0-21swapper/100:01:001
21582991910,6cyclictest0-21swapper/122:59:121
21582991910,6cyclictest0-21swapper/120:59:121
21582991910,5cyclictest0-21swapper/123:16:371
21582991910,4cyclictest0-21swapper/121:51:381
21582991910,4cyclictest0-21swapper/119:34:111
21581991916,2cyclictest7-21ksoftirqd/020:04:110
21581991914,4cyclictest0-21swapper/020:01:370
21581991912,6cyclictest0-21swapper/019:39:430
2158299188,6cyclictest0-21swapper/120:34:101
21582991810,4cyclictest0-21swapper/119:33:231
21582991810,1cyclictest0-21swapper/120:03:331
21581991815,2cyclictest30956-21taskset20:55:320
2158299171,7cyclictest0-21swapper/120:04:171
21582991710,3cyclictest0-21swapper/120:44:161
21582991710,2cyclictest0-21swapper/120:53:111
2158299165,6cyclictest0-21swapper/120:09:071
21582991610,2cyclictest0-21swapper/120:24:061
21582991610,2cyclictest0-21swapper/120:19:061
2158299160,3cyclictest0-21swapper/121:04:111
2158299142,8cyclictest0-21swapper/120:29:091
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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