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2026-03-27 - 08:32
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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 rackdslot2.osadl.org (updated Fri Mar 27, 2026 00:45:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
139591213146,22phc2sys0-21swapper/319:08:553
24692206173,22sleep10-21swapper/119:08:361
22372205170,24sleep20-21swapper/219:05:442
23852203169,23sleep00-21swapper/019:07:310
2340121530,6sleep3291699cyclictest21:00:143
110602670,1sleep00-21swapper/000:20:000
139291660,1ptp4l401ktimersoftd/319:12:013
139291630,0ptp4l401ktimersoftd/323:40:393
2914995612,8cyclictest25-21ksoftirqd/121:27:181
291599550,3cyclictest12012-21taskset23:11:462
291599550,3cyclictest11806-21chrt21:41:002
2914995413,4cyclictest25-21ksoftirqd/119:55:011
2914995410,4cyclictest25-21ksoftirqd/123:50:261
139291540,1ptp4l391rcuc/319:15:283
139291530,1ptp4l401ktimersoftd/323:15:263
139291530,1ptp4l401ktimersoftd/320:46:393
2913995216,4cyclictest9-21ksoftirqd/021:40:010
222372520,1sleep10-21swapper/123:35:121
291599510,4cyclictest16181-21taskset22:02:352
2915995029,18cyclictest33-21ksoftirqd/221:18:192
2914995018,7cyclictest25-21ksoftirqd/121:55:001
2914995017,9cyclictest25-21ksoftirqd/100:10:121
291499499,4cyclictest25-21ksoftirqd/119:30:261
291499497,7cyclictest25-21ksoftirqd/100:15:261
2914994822,4cyclictest25-21ksoftirqd/120:15:181
2914994818,4cyclictest25-21ksoftirqd/123:55:241
2913994716,3cyclictest9-21ksoftirqd/019:25:230
2915994612,20cyclictest14761-21awk20:40:202
291499467,7cyclictest25-21ksoftirqd/119:20:171
291499458,8cyclictest25-21ksoftirqd/121:50:011
2914994535,3cyclictest25-21ksoftirqd/121:05:001
291499446,8cyclictest25-21ksoftirqd/121:10:011
2914994410,4cyclictest25-21ksoftirqd/121:10:261
2913994416,4cyclictest9-21ksoftirqd/019:50:230
2913994415,4cyclictest9-21ksoftirqd/019:10:250
139291440,0ptp4l401ktimersoftd/323:38:363
2916994333,6cyclictest41-21ksoftirqd/300:30:133
139291430,0ptp4l401ktimersoftd/319:24:563
291499428,9cyclictest25-21ksoftirqd/120:40:131
2914994231,3cyclictest25-21ksoftirqd/122:12:201
2914994229,3cyclictest25-21ksoftirqd/122:29:591
291499421,3cyclictest25-21ksoftirqd/122:50:181
291499420,2cyclictest121rcu_preempt22:20:281
291399421,8cyclictest9-21ksoftirqd/022:10:010
2913994213,3cyclictest9-21ksoftirqd/023:25:210
2913994212,3cyclictest9-21ksoftirqd/000:20:160
2913994210,3cyclictest9-21ksoftirqd/019:50:010
291599415,22cyclictest0-21swapper/200:20:382
291499416,4cyclictest25-21ksoftirqd/120:50:181
291499415,3cyclictest121rcu_preempt23:20:161
291499414,4cyclictest25-21ksoftirqd/123:05:221
291499414,2cyclictest121rcu_preempt23:10:171
2914994134,4cyclictest25-21ksoftirqd/120:25:001
2914994134,4cyclictest25-21ksoftirqd/120:25:001
291499413,3cyclictest121rcu_preempt21:40:241
2914994126,6cyclictest25-21ksoftirqd/122:45:011
291499411,8cyclictest25-21ksoftirqd/123:00:211
291499411,8cyclictest121rcu_preempt22:30:141
291499410,3cyclictest121rcu_preempt00:20:151
2913994136,3cyclictest9-21ksoftirqd/022:05:010
2916994033,4cyclictest41-21ksoftirqd/300:24:593
2915994035,3cyclictest8611-21dump-pmu-power20:30:012
291499406,11cyclictest25-21ksoftirqd/122:00:181
291499405,3cyclictest121rcu_preempt21:30:211
291499405,3cyclictest121rcu_preempt19:45:191
291499404,3cyclictest121rcu_preempt21:59:591
2914994036,2cyclictest25-21ksoftirqd/120:09:591
2914994013,3cyclictest121rcu_preempt20:00:141
291499400,2cyclictest121rcu_preempt23:45:121
291499400,2cyclictest121rcu_preempt23:00:001
2913994036,2cyclictest9-21ksoftirqd/023:40:000
2913994036,2cyclictest9-21ksoftirqd/021:20:000
2913994036,2cyclictest9-21ksoftirqd/019:20:010
2913994013,4cyclictest9-21ksoftirqd/021:00:130
2913994011,3cyclictest9-21ksoftirqd/020:50:180
2913994010,3cyclictest9-21ksoftirqd/000:05:150
2916993933,3cyclictest41-21ksoftirqd/319:30:113
291499394,2cyclictest121rcu_preempt21:35:261
291499394,2cyclictest121rcu_preempt20:25:201
2914993935,2cyclictest25-21ksoftirqd/119:20:011
2914993935,2cyclictest25-21ksoftirqd/100:40:001
291499393,4cyclictest121rcu_preempt00:06:021
2914993934,3cyclictest25-21ksoftirqd/121:20:011
291499392,4cyclictest121rcu_preempt21:20:201
291499392,3cyclictest25-21ksoftirqd/120:45:211
291499392,3cyclictest121rcu_preempt23:35:001
291499391,5cyclictest121rcu_preempt19:25:111
291399399,4cyclictest9-21ksoftirqd/019:35:140
291399399,3cyclictest9-21ksoftirqd/022:20:180
2913993935,2cyclictest9-21ksoftirqd/020:25:000
2913993935,2cyclictest9-21ksoftirqd/020:25:000
2913993910,3cyclictest9-21ksoftirqd/020:15:200
139291390,0ptp4l401ktimersoftd/300:00:333
2916993833,3cyclictest20630-21latency_hist22:25:003
2916993832,4cyclictest41-21ksoftirqd/320:27:563
2916993832,4cyclictest41-21ksoftirqd/320:00:523
291499385,9cyclictest25-21ksoftirqd/120:14:591
291499384,3cyclictest121rcu_preempt23:25:141
2914993834,3cyclictest25-21ksoftirqd/122:45:281
2914993833,3cyclictest25-21ksoftirqd/121:00:001
2914993833,3cyclictest25-21ksoftirqd/100:05:001
2914993832,3cyclictest25-21ksoftirqd/100:30:261
291499383,10cyclictest25-21ksoftirqd/122:35:161
291499381,7cyclictest25-21ksoftirqd/123:15:261
291399388,3cyclictest9-21ksoftirqd/020:10:000
291399384,3cyclictest9-21ksoftirqd/019:45:000
2913993834,2cyclictest9-21ksoftirqd/021:30:000
2913993833,3cyclictest9-21ksoftirqd/023:50:180
2913993833,3cyclictest9-21ksoftirqd/022:40:010
2913993833,3cyclictest9-21ksoftirqd/020:40:010
2913993833,3cyclictest9-21ksoftirqd/000:00:000
291399383,2cyclictest121rcu_preempt23:00:000
2913993824,3cyclictest9-21ksoftirqd/020:55:250
139291380,0ptp4l401ktimersoftd/300:25:173
2916993732,3cyclictest41-21ksoftirqd/322:45:013
2916993732,3cyclictest41-21ksoftirqd/320:51:393
2916993731,4cyclictest41-21ksoftirqd/322:59:533
2916993731,4cyclictest41-21ksoftirqd/322:49:583
2916993731,4cyclictest41-21ksoftirqd/322:13:443
2916993731,4cyclictest41-21ksoftirqd/321:05:323
2916993730,5cyclictest41-21ksoftirqd/322:18:573
2915993731,4cyclictest33-21ksoftirqd/220:17:082
2915993731,4cyclictest33-21ksoftirqd/219:58:462
2915993731,4cyclictest33-21ksoftirqd/219:39:262
2914993734,2cyclictest25-21ksoftirqd/120:35:001
2914993732,3cyclictest25-21ksoftirqd/120:35:201
2914993732,3cyclictest25-21ksoftirqd/119:55:231
2914993732,3cyclictest25-21ksoftirqd/100:29:591
2914993731,3cyclictest25-21ksoftirqd/123:40:211
2914993731,3cyclictest25-21ksoftirqd/122:20:011
291499370,2cyclictest25-21ksoftirqd/119:10:261
2913993733,3cyclictest9-21ksoftirqd/022:15:010
291399373,2cyclictest121rcu_preempt23:15:000
2913993732,3cyclictest9-21ksoftirqd/022:45:140
2913993728,2cyclictest9-21ksoftirqd/000:35:270
2913993725,3cyclictest9-21ksoftirqd/023:00:230
2913993725,3cyclictest9-21ksoftirqd/020:45:230
2913993724,3cyclictest9-21ksoftirqd/019:20:120
2913993723,4cyclictest9-21ksoftirqd/020:25:190
2916993631,3cyclictest41-21ksoftirqd/323:05:123
2916993631,3cyclictest41-21ksoftirqd/321:31:163
2916993631,3cyclictest41-21ksoftirqd/320:44:163
2916993631,3cyclictest12748-21sh21:50:013
2916993630,4cyclictest41-21ksoftirqd/320:32:333
2916993630,4cyclictest41-21ksoftirqd/300:16:073
2915993631,3cyclictest33-21ksoftirqd/221:10:102
2915993631,3cyclictest33-21ksoftirqd/220:01:202
2915993630,4cyclictest33-21ksoftirqd/223:44:362
2915993630,4cyclictest33-21ksoftirqd/223:29:192
2915993630,4cyclictest33-21ksoftirqd/221:45:252
2915993630,4cyclictest33-21ksoftirqd/200:39:132
2915993630,4cyclictest33-21ksoftirqd/200:14:452
291599360,5cyclictest24077-21dump-pmu-power19:55:002
2914993632,2cyclictest25-21ksoftirqd/119:40:171
291399365,3cyclictest9-21ksoftirqd/000:00:300
2913993632,3cyclictest9-21ksoftirqd/023:40:180
2913993632,2cyclictest9-21ksoftirqd/022:50:120
2913993630,4cyclictest9-21ksoftirqd/023:24:040
2913993627,3cyclictest9-21ksoftirqd/020:35:010
2913993623,3cyclictest9-21ksoftirqd/023:05:140
2913993623,3cyclictest9-21ksoftirqd/020:40:200
291399361,3cyclictest121rcu_preempt22:30:130
2916993530,3cyclictest41-21ksoftirqd/323:32:053
2916993530,3cyclictest41-21ksoftirqd/323:14:283
2916993529,4cyclictest41-21ksoftirqd/323:26:283
2916993529,4cyclictest41-21ksoftirqd/319:40:583
2915993530,3cyclictest33-21ksoftirqd/221:22:262
2915993530,3cyclictest33-21ksoftirqd/221:05:002
2915993529,4cyclictest33-21ksoftirqd/221:35:302
2915993529,4cyclictest33-21ksoftirqd/219:16:512
2915993528,5cyclictest33-21ksoftirqd/219:21:482
291599350,3cyclictest14236-21chrt19:30:592
2914993531,2cyclictest25-21ksoftirqd/122:10:001
2913993530,3cyclictest9-21ksoftirqd/021:35:000
2913993530,3cyclictest9-21ksoftirqd/021:20:140
2913993530,3cyclictest9-21ksoftirqd/020:05:000
2913993522,3cyclictest9-21ksoftirqd/022:40:210
2913993522,3cyclictest9-21ksoftirqd/000:30:180
2913993521,3cyclictest9-21ksoftirqd/000:10:240
291399351,2cyclictest121rcu_preempt23:15:120
291399350,2cyclictest121rcu_preempt23:35:000
2916993429,3cyclictest41-21ksoftirqd/320:12:203
2916993429,3cyclictest41-21ksoftirqd/300:15:003
2916993428,4cyclictest41-21ksoftirqd/319:48:413
2915993429,3cyclictest33-21ksoftirqd/223:22:272
2915993429,3cyclictest33-21ksoftirqd/222:39:362
2915993429,3cyclictest33-21ksoftirqd/221:32:112
2915993428,4cyclictest33-21ksoftirqd/223:48:152
2915993428,4cyclictest33-21ksoftirqd/223:34:452
2915993428,4cyclictest33-21ksoftirqd/222:48:042
2915993428,4cyclictest33-21ksoftirqd/221:59:142
2915993428,4cyclictest33-21ksoftirqd/220:08:142
2915993428,4cyclictest33-21ksoftirqd/219:42:312
2915993428,4cyclictest33-21ksoftirqd/200:27:482
2915993428,3cyclictest33-21ksoftirqd/220:47:362
291599341,2cyclictest202882chrt22:20:482
291599340,3cyclictest1312-21snmpd19:47:292
2914993429,3cyclictest25-21ksoftirqd/119:35:191
2913993430,3cyclictest9-21ksoftirqd/022:25:150
2913993430,3cyclictest9-21ksoftirqd/019:55:230
2913993430,2cyclictest9-21ksoftirqd/021:40:260
2913993430,2cyclictest9-21ksoftirqd/021:10:180
2913993430,2cyclictest9-21ksoftirqd/019:30:140
2913993430,2cyclictest9-21ksoftirqd/000:25:200
2913993427,2cyclictest9-21ksoftirqd/023:45:240
2913993423,3cyclictest9-21ksoftirqd/020:10:250
2916993328,3cyclictest41-21ksoftirqd/323:04:233
2916993328,3cyclictest41-21ksoftirqd/322:34:053
2916993328,3cyclictest41-21ksoftirqd/321:51:453
2916993328,3cyclictest41-21ksoftirqd/321:40:433
2916993328,3cyclictest41-21ksoftirqd/320:57:033
2916993328,3cyclictest41-21ksoftirqd/319:25:503
2916993327,4cyclictest41-21ksoftirqd/320:22:403
2916993327,4cyclictest41-21ksoftirqd/320:22:403
2916993327,4cyclictest41-21ksoftirqd/319:58:243
2915993328,3cyclictest33-21ksoftirqd/222:55:432
2915993327,4cyclictest33-21ksoftirqd/222:25:122
2915993327,4cyclictest33-21ksoftirqd/221:50:272
291599331,29cyclictest11044-21cron00:20:002
2913993329,2cyclictest9-21ksoftirqd/021:46:160
2913993329,2cyclictest9-21ksoftirqd/021:05:220
232232330,5sleep223227-21phc2sys-jitter23:35:212
2916993227,3cyclictest41-21ksoftirqd/322:53:563
2916993227,3cyclictest41-21ksoftirqd/322:37:373
2916993227,3cyclictest41-21ksoftirqd/321:26:493
2916993227,3cyclictest41-21ksoftirqd/320:17:533
2916993227,3cyclictest41-21ksoftirqd/320:09:233
2916993226,4cyclictest41-21ksoftirqd/323:57:493
2916993226,4cyclictest41-21ksoftirqd/321:38:453
2916993226,3cyclictest41-21ksoftirqd/320:35:313
2916993225,5cyclictest41-21ksoftirqd/319:39:103
291599328,21cyclictest4055-21which21:25:232
2915993227,3cyclictest33-21ksoftirqd/223:56:472
2915993227,3cyclictest33-21ksoftirqd/223:53:122
2915993227,3cyclictest33-21ksoftirqd/220:13:092
2915993227,3cyclictest33-21ksoftirqd/200:02:402
2915993226,4cyclictest33-21ksoftirqd/200:35:002
2915993213,17cyclictest13568-21sed20:40:012
291599321,28cyclictest217-21systemd-journal22:30:132
2913993226,4cyclictest9-21ksoftirqd/022:20:000
2916993126,3cyclictest41-21ksoftirqd/321:24:073
2916993126,3cyclictest41-21ksoftirqd/321:17:133
2916993126,3cyclictest41-21ksoftirqd/321:11:343
291599317,22cyclictest32591-21kworker/2:222:50:252
2915993126,3cyclictest33-21ksoftirqd/220:50:042
2915993125,4cyclictest33-21ksoftirqd/221:06:542
2915993125,4cyclictest33-21ksoftirqd/220:57:492
2915993125,3cyclictest33-21ksoftirqd/222:15:322
2915993113,15cyclictest13121-21cat23:15:182
2913993124,4cyclictest13380-21grep21:54:590
291399310,2cyclictest121rcu_preempt21:57:430
2916993025,3cyclictest41-21ksoftirqd/323:45:413
2916993025,3cyclictest41-21ksoftirqd/300:35:083
2915993025,3cyclictest33-21ksoftirqd/223:02:402
2915993025,3cyclictest33-21ksoftirqd/220:22:502
2915993025,3cyclictest33-21ksoftirqd/220:22:492
2915993025,3cyclictest33-21ksoftirqd/200:05:092
2915993023,4cyclictest33-21ksoftirqd/220:30:122
139291300,8ptp4l401ktimersoftd/300:05:083
2916992924,3cyclictest41-21ksoftirqd/323:50:423
2916992923,4cyclictest41-21ksoftirqd/322:09:413
2916992921,3cyclictest41-21ksoftirqd/322:27:313
2915992924,3cyclictest33-21ksoftirqd/222:13:092
2915992924,3cyclictest33-21ksoftirqd/219:28:532
2915992924,3cyclictest33-21ksoftirqd/219:10:302
291599291,3cyclictest0-21swapper/223:08:172
2915992912,15cyclictest28195-21/usr/sbin/munin22:40:182
139291290,0ptp4l401ktimersoftd/322:01:053
139291290,0ptp4l401ktimersoftd/319:50:243
2916992822,4cyclictest41-21ksoftirqd/323:21:063
291599273,23cyclictest29934-21kworker/2:122:09:062
139291270,0ptp4l401ktimersoftd/321:58:363
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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