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2026-04-28 - 19:04
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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 Tue Apr 28, 2026 00:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2541127463,7sleep00-21swapper/019:04:490
2553127049,8sleep10-21swapper/119:06:051
243492640,1sleep10-21swapper/121:29:201
26000994710,4cyclictest0-21swapper/000:34:320
26000994411,27cyclictest7199-21diskmemload00:25:520
26000994310,22cyclictest0-21swapper/021:11:410
26000994210,31cyclictest0-21swapper/021:25:540
26000994210,30cyclictest91rcu_preempt23:56:520
26000994210,29cyclictest91rcu_preempt22:00:200
26000994210,29cyclictest0-21swapper/023:00:350
26000994210,15cyclictest0-21swapper/022:56:250
26000994210,15cyclictest0-21swapper/021:44:180
26000994110,8cyclictest0-21swapper/021:04:150
26000993910,28cyclictest0-21swapper/022:17:310
26000993910,24cyclictest0-21swapper/022:04:210
26000993910,21cyclictest0-21swapper/020:17:380
26000993818,9cyclictest91rcu_preempt23:08:380
26000993810,27cyclictest0-21swapper/022:10:200
26000993810,26cyclictest0-21swapper/021:22:250
26000993710,27cyclictest0-21swapper/020:39:220
26000993710,26cyclictest0-21swapper/023:38:420
26000993710,26cyclictest0-21swapper/022:38:190
26000993710,26cyclictest0-21swapper/021:56:140
26000993710,26cyclictest0-21swapper/020:56:570
26000993710,23cyclictest0-21swapper/023:20:530
26000993710,22cyclictest91rcu_preempt23:43:200
26000993610,26cyclictest0-21swapper/021:35:500
26000993610,26cyclictest0-21swapper/020:19:170
26000993610,25cyclictest2536-21ls00:29:200
26000993610,25cyclictest0-21swapper/023:51:170
26000993610,25cyclictest0-21swapper/019:29:240
26000993610,21cyclictest0-21swapper/023:47:290
26000993510,25cyclictest0-21swapper/020:24:160
26000993510,24cyclictest0-21swapper/021:41:060
26000993510,11cyclictest0-21swapper/022:29:170
2600099350,2cyclictest208252sleep000:10:590
26000993415,18cyclictest0-21swapper/021:15:100
26000993411,22cyclictest1199-21runrttasks19:51:160
26000993410,24cyclictest0-21swapper/022:50:280
26000993410,24cyclictest0-21swapper/022:24:550
26000993410,24cyclictest0-21swapper/020:38:590
26000993410,23cyclictest0-21swapper/020:33:350
26000993410,23cyclictest0-21swapper/019:57:540
26000993410,22cyclictest91rcu_preempt22:43:000
26000993410,21cyclictest91rcu_preempt23:18:000
26000993410,20cyclictest16751-21ssh23:24:180
2600099332,29cyclictest15904-21gzip00:04:230
2600099331,31cyclictest28159-21/usr/sbin/munin19:14:190
26000993310,22cyclictest0-21swapper/023:09:160
26000993310,22cyclictest0-21swapper/022:48:420
26000993310,22cyclictest0-21swapper/000:03:140
26000993310,19cyclictest0-21swapper/023:30:120
2600099330,32cyclictest18391-21pidof20:13:260
26001993231,1cyclictest0-21swapper/123:51:031
2600099321,30cyclictest24245-21cat21:29:190
26000993210,8cyclictest0-21swapper/021:52:150
26000993210,22cyclictest0-21swapper/020:45:090
26000993210,22cyclictest0-21swapper/000:23:040
26000993210,21cyclictest0-21swapper/019:24:220
26000993210,16cyclictest0-21swapper/020:49:180
26001993110,0cyclictest0-21swapper/122:23:071
2600099314,26cyclictest6617-21taskset19:41:060
2600099312,28cyclictest23469-21awk00:14:240
26000993118,13cyclictest0-21swapper/019:09:550
26000993114,17cyclictest0-21swapper/020:00:290
26000993110,19cyclictest0-21swapper/022:19:170
26000993110,19cyclictest0-21swapper/019:38:340
26000993110,16cyclictest0-21swapper/019:19:090
2600099291,27cyclictest5133-21taskset21:02:480
26001992810,5cyclictest0-21swapper/100:09:201
2600199280,2cyclictest8220-21ssh21:09:211
26001992726,0cyclictest231ktimersoftd/121:37:031
26000992710,17cyclictest0-21swapper/019:44:250
2600199260,18cyclictest0-21swapper/119:29:141
26000992510,7cyclictest0-21swapper/020:04:160
26001992422,1cyclictest15642-21cron21:23:591
26001992422,1cyclictest15515-21ssh23:22:351
26001992422,1cyclictest11190-21apache_accesses23:59:161
26001992417,1cyclictest818-21ssh23:04:081
26001992413,9cyclictest100150irq/106-eth1-rx00:04:201
26001992412,7cyclictest7731-21apache200:17:041
26001992319,3cyclictest7721-21apache223:27:091
26001992310,8cyclictest0-21swapper/122:32:521
26001992310,5cyclictest0-21swapper/123:34:221
26001992221,1cyclictest27941-21/usr/sbin/munin19:14:261
26001992221,0cyclictest19019-21cstates22:04:161
26001992219,2cyclictest8242-21ssh00:36:481
26001992216,3cyclictest7721-21apache200:20:211
26001992212,6cyclictest0-21swapper/120:39:171
2600199221,13cyclictest0-21swapper/119:59:201
26001992210,6cyclictest32143-21diskmemload00:25:171
26001992210,6cyclictest0-21swapper/122:40:391
26001992210,5cyclictest0-21swapper/122:16:261
26001992210,4cyclictest0-21swapper/123:29:141
26001992210,4cyclictest0-21swapper/121:54:201
26001992210,4cyclictest0-21swapper/121:49:171
2600199220,17cyclictest0-21swapper/121:44:211
2600199216,11cyclictest0-21swapper/121:24:141
2600199212,12cyclictest0-21swapper/119:39:171
26001992120,1cyclictest0-21swapper/122:26:221
26001992119,2cyclictest7731-21apache222:01:561
26001992111,3cyclictest0-21swapper/120:29:201
26001992110,6cyclictest0-21swapper/122:48:001
26001992110,6cyclictest0-21swapper/100:29:161
26001992110,5cyclictest0-21swapper/120:19:151
26001992110,5cyclictest0-21swapper/120:14:181
26001992110,3cyclictest0-21swapper/120:49:141
1091122110,0sleep10-21swapper/123:16:321
2600199203,16cyclictest29171-21kworker/1:219:47:371
26001992020,0cyclictest0-21swapper/123:46:371
26001992012,4cyclictest7731-21apache221:16:021
26001992010,6cyclictest0-21swapper/123:09:281
26001992010,6cyclictest0-21swapper/119:09:161
26001992010,5cyclictest100250irq/107-eth1-rx22:49:471
26001992010,4cyclictest0-21swapper/122:34:191
2600199195,11cyclictest0-21swapper/120:24:181
2600199192,8cyclictest0-21swapper/122:59:261
26001991919,0cyclictest0-21swapper/121:42:051
26001991919,0cyclictest0-21swapper/119:24:221
2600199191,4cyclictest28386-21taskset22:57:421
26001991910,7cyclictest0-21swapper/122:13:561
26001991910,6cyclictest0-21swapper/119:57:371
26001991910,5cyclictest0-21swapper/119:49:381
26001991817,0cyclictest231ktimersoftd/123:56:291
26001991811,6cyclictest29171-21kworker/1:221:01:291
2600199180,9cyclictest17393-21ls20:09:211
2600199180,7cyclictest0-21swapper/120:34:151
2600199180,12cyclictest0-21swapper/123:39:161
2600199174,8cyclictest0-21swapper/120:04:261
26001991610,5cyclictest29171-21kworker/1:221:08:011
26001991610,2cyclictest0-21swapper/120:54:211
26001991610,2cyclictest0-21swapper/119:19:141
26001991610,1cyclictest0-21swapper/120:44:161
26001991410,1cyclictest3344-21cstates19:34:161
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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