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2026-05-17 - 08:44
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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 Sun May 17, 2026 00:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
227672760,0sleep10-21swapper/100:24:131
2233227057,9sleep10-21swapper/119:05:261
210512680,0sleep10-21swapper/123:38:441
2244326754,8sleep00-21swapper/019:06:330
22849993610,2cyclictest0-21swapper/021:20:520
22849992917,8cyclictest23956-21kworker/u4:122:22:490
22850992823,4cyclictest0-21swapper/100:16:541
22849992822,3cyclictest18409-21apache223:56:120
642922710,1sleep10-21swapper/122:35:191
22850992727,0cyclictest0-21swapper/122:20:231
22850992721,3cyclictest18437-21apache200:21:401
22850992626,0cyclictest0-21swapper/121:12:231
22850992625,0cyclictest0-21swapper/121:54:151
2285099262,23cyclictest0-21swapper/121:34:511
22850992611,7cyclictest231ktimersoftd/123:22:111
2285099260,8cyclictest167-21systemd-journal21:48:551
22849992619,4cyclictest0-21swapper/000:28:440
2284999261,4cyclictest5950-21kworker/0:019:49:150
22849992610,10cyclictest0-21swapper/022:13:360
2285099253,21cyclictest0-21swapper/123:30:501
22850992524,1cyclictest24-21ksoftirqd/122:04:111
2285099250,7cyclictest0-21swapper/100:08:311
22849992521,3cyclictest18340-21munin-node20:51:360
22849992516,6cyclictest18437-21apache222:42:310
22849992510,12cyclictest0-21swapper/000:13:010
22850992420,3cyclictest0-21swapper/121:49:431
22850992419,4cyclictest0-21swapper/122:50:321
22850992410,7cyclictest0-21swapper/100:10:381
2285099240,20cyclictest770-21irqbalance23:09:161
22849992424,0cyclictest0-21swapper/023:40:530
22849992423,1cyclictest0-21swapper/021:03:280
22849992422,1cyclictest81ktimersoftd/020:48:530
22849992420,3cyclictest636-21nscd00:38:550
22849992410,7cyclictest0-21swapper/021:45:540
22849992410,6cyclictest0-21swapper/000:01:570
2285099237,10cyclictest0-21swapper/122:54:131
2285099233,19cyclictest0-21swapper/122:44:021
2285099232,4cyclictest0-21swapper/100:00:091
22850992322,1cyclictest24-21ksoftirqd/123:24:141
2285099232,16cyclictest0-21swapper/100:32:051
22849992320,2cyclictest0-21swapper/021:24:090
22850992222,0cyclictest0-21swapper/100:34:471
22850992221,0cyclictest24-21ksoftirqd/121:41:581
22850992220,1cyclictest24-21ksoftirqd/119:29:211
22850992219,2cyclictest18409-21apache223:39:181
22850992210,4cyclictest0-21swapper/120:09:111
22850992210,3cyclictest0-21swapper/121:29:061
2284999225,11cyclictest0-21swapper/021:14:150
2284999225,11cyclictest0-21swapper/020:39:130
22849992218,2cyclictest802-21apache219:47:110
22849992217,4cyclictest18409-21apache223:46:570
22849992210,7cyclictest0-21swapper/020:14:120
22849992210,4cyclictest0-21swapper/019:14:090
22849992210,3cyclictest0-21swapper/023:37:170
22849992210,3cyclictest0-21swapper/023:31:170
22849992210,12cyclictest3073-21ssh21:49:060
2285099216,10cyclictest0-21swapper/122:15:001
2285099214,7cyclictest0-21swapper/119:24:101
2285099214,10cyclictest0-21swapper/119:59:151
22850992120,0cyclictest24-21ksoftirqd/119:53:551
22850992117,2cyclictest18437-21apache221:16:521
22850992110,6cyclictest0-21swapper/122:02:451
22850992110,5cyclictest0-21swapper/122:29:111
22850992110,5cyclictest0-21swapper/119:09:161
22850992110,4cyclictest0-21swapper/120:34:091
2285099210,2cyclictest26208-21ssh23:02:021
22849992119,1cyclictest6321-21/usr/sbin/munin23:19:130
22849992114,6cyclictest0-21swapper/022:04:330
2284999211,19cyclictest0-21swapper/022:14:420
22849992110,6cyclictest0-21swapper/000:19:110
22849992110,10cyclictest4053-21diskmemload21:31:530
2284999210,3cyclictest0-21swapper/023:09:500
2285099208,3cyclictest7586-21cron19:58:501
22850992019,1cyclictest24-21ksoftirqd/121:24:201
22850992019,1cyclictest0-21swapper/120:51:271
22850992019,0cyclictest24-21ksoftirqd/122:09:141
22850992010,7cyclictest0-21swapper/123:04:181
22849992013,4cyclictest100150irq/106-eth1-rx00:16:110
22849992012,8cyclictest100250irq/107-eth1-rx23:05:560
22849992011,3cyclictest0-21swapper/022:44:080
22849992010,6cyclictest0-21swapper/021:40:500
22849992010,5cyclictest0-21swapper/022:54:110
22849992010,5cyclictest0-21swapper/020:28:570
22849992010,4cyclictest0-21swapper/020:09:060
343121910,0sleep10-21swapper/119:40:401
2285099196,8cyclictest0-21swapper/120:14:081
2285099195,8cyclictest21466-21diskstats20:29:091
2285099193,5cyclictest91rcu_preempt20:08:551
2285099193,11cyclictest0-21swapper/123:14:131
2285099192,6cyclictest24-21ksoftirqd/123:55:341
2285099192,4cyclictest91rcu_preempt21:21:351
22850991910,6cyclictest0-21swapper/123:49:101
22850991910,6cyclictest0-21swapper/120:59:171
22850991910,5cyclictest0-21swapper/122:39:151
22850991910,3cyclictest0-21swapper/119:34:141
22849991913,5cyclictest8761-21seq19:54:140
22849991912,5cyclictest22847-21cyclictest21:34:110
22849991911,2cyclictest100250irq/107-eth1-rx00:31:240
22849991910,7cyclictest0-21swapper/019:29:010
22849991910,6cyclictest0-21swapper/023:50:280
22849991910,5cyclictest0-21swapper/022:38:060
22849991910,4cyclictest0-21swapper/020:19:100
22849991910,3cyclictest0-21swapper/023:26:570
936821810,0sleep00-21swapper/000:05:140
3224721810,0sleep10-21swapper/122:27:371
2285099186,7cyclictest0-21swapper/119:44:061
22850991817,1cyclictest0-21swapper/119:18:471
22850991810,4cyclictest0-21swapper/120:18:561
2284999183,8cyclictest0-21swapper/019:09:130
2284999182,9cyclictest0-21swapper/021:54:100
22849991811,3cyclictest0-21swapper/022:02:230
22849991810,6cyclictest0-21swapper/019:34:080
22849991810,3cyclictest0-21swapper/021:04:180
22849991810,1cyclictest0-21swapper/023:14:390
22849991810,0cyclictest0-21swapper/022:33:200
1293121810,2sleep00-21swapper/020:04:400
22850991715,1cyclictest24-21ksoftirqd/120:44:071
22850991714,2cyclictest0-21swapper/120:54:161
22850991710,2cyclictest0-21swapper/120:24:121
22850991710,1cyclictest0-21swapper/123:44:161
2284999178,7cyclictest0-21swapper/019:39:080
2284999172,7cyclictest0-21swapper/019:24:080
22849991715,1cyclictest22847-21cyclictest22:50:540
2284999171,11cyclictest0-21swapper/021:09:450
22849991710,3cyclictest0-21swapper/022:59:120
22849991710,2cyclictest0-21swapper/019:20:510
2035721710,0sleep00-21swapper/020:24:150
2285099163,8cyclictest0-21swapper/121:04:141
2285099163,3cyclictest0-21swapper/119:19:101
22850991610,1cyclictest0-21swapper/120:39:161
2284999164,5cyclictest0-21swapper/022:24:110
22849991610,3cyclictest0-21swapper/020:34:090
22849991610,3cyclictest0-21swapper/019:59:070
2284999152,7cyclictest0-21swapper/020:54:100
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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