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2025-09-13 - 10:09
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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 rackdslot4.osadl.org (updated Sat Sep 13, 2025 00:45:51)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3862228162,22sleep20-21swapper/219:05:332
134791207173,22phc2sys0-21swapper/319:05:093
5092196163,22sleep10-21swapper/119:06:571
309662194160,22sleep00-21swapper/019:05:070
2197921610,5sleep3122399cyclictest20:55:143
134991720,1ptp4l391rcuc/322:00:223
1222996327,13cyclictest33-21ksoftirqd/222:05:292
1221996230,3cyclictest25-21ksoftirqd/119:40:241
47982610,7sleep1122199cyclictest20:20:141
1221996131,4cyclictest25-21ksoftirqd/119:55:241
130691590,7getstats122399cyclictest23:28:383
1221995924,9cyclictest25-21ksoftirqd/100:20:011
1221995829,7cyclictest25-21ksoftirqd/122:21:131
1221995828,7cyclictest25-21ksoftirqd/120:10:221
1221995828,4cyclictest25-21ksoftirqd/122:51:221
1221995813,9cyclictest25-21ksoftirqd/121:45:291
1222995731,5cyclictest33-21ksoftirqd/221:50:002
1221995729,7cyclictest25-21ksoftirqd/122:06:161
1221995728,8cyclictest25-21ksoftirqd/120:08:261
1221995728,4cyclictest25-21ksoftirqd/123:43:571
1221995728,4cyclictest25-21ksoftirqd/120:35:051
1221995727,4cyclictest25-21ksoftirqd/121:52:321
1221995724,7cyclictest25-21ksoftirqd/120:50:181
1221995714,9cyclictest25-21ksoftirqd/100:10:151
1221995713,9cyclictest25-21ksoftirqd/122:45:241
1220995722,8cyclictest9-21ksoftirqd/019:15:010
308922560,2sleep10-21swapper/123:20:221
134991560,1ptp4l401ktimersoftd/322:13:063
1221995628,3cyclictest25-21ksoftirqd/100:03:471
1221995617,4cyclictest25-21ksoftirqd/121:30:001
1221995611,7cyclictest25-21ksoftirqd/123:25:131
1221995528,4cyclictest25-21ksoftirqd/123:10:391
1221995518,6cyclictest25-21ksoftirqd/123:05:271
1220995527,4cyclictest9-21ksoftirqd/020:55:270
1220995526,4cyclictest9-21ksoftirqd/000:20:250
1221995422,9cyclictest25-21ksoftirqd/123:50:011
1221995422,9cyclictest25-21ksoftirqd/123:50:011
1221995422,9cyclictest25-21ksoftirqd/121:40:191
1221995421,7cyclictest25-21ksoftirqd/119:45:251
1220995426,3cyclictest9-21ksoftirqd/021:05:230
134991530,1ptp4l401ktimersoftd/321:35:203
134991530,1ptp4l401ktimersoftd/321:15:043
1221995318,11cyclictest25-21ksoftirqd/119:10:261
1221995317,6cyclictest25-21ksoftirqd/119:30:211
1221995312,6cyclictest25-21ksoftirqd/100:30:271
1221995310,8cyclictest25-21ksoftirqd/122:30:391
1221995310,8cyclictest25-21ksoftirqd/122:30:391
1220995325,4cyclictest9-21ksoftirqd/020:10:310
1220995324,5cyclictest9-21ksoftirqd/023:05:290
1220995315,7cyclictest9-21ksoftirqd/020:00:160
1221995213,8cyclictest25-21ksoftirqd/122:10:221
1220995225,3cyclictest9-21ksoftirqd/000:00:140
1220995223,6cyclictest9-21ksoftirqd/019:50:200
1220995217,6cyclictest9-21ksoftirqd/021:55:190
1221995137,3cyclictest25-21ksoftirqd/123:50:191
1221995137,3cyclictest25-21ksoftirqd/123:50:191
1221995118,9cyclictest25-21ksoftirqd/122:55:201
1221995118,4cyclictest25-21ksoftirqd/123:35:251
1220995124,4cyclictest9-21ksoftirqd/019:55:300
1220995121,4cyclictest9-21ksoftirqd/023:15:160
1220995118,4cyclictest9-21ksoftirqd/022:50:010
1220995118,4cyclictest9-21ksoftirqd/021:15:000
1220995116,4cyclictest9-21ksoftirqd/022:05:170
1221995016,4cyclictest25-21ksoftirqd/120:00:231
1221995011,4cyclictest25-21ksoftirqd/122:00:111
1220995020,6cyclictest9-21ksoftirqd/021:25:170
1220995020,4cyclictest9-21ksoftirqd/021:30:130
1220995019,10cyclictest9-21ksoftirqd/020:15:130
1220995016,5cyclictest9-21ksoftirqd/020:50:230
1220995014,4cyclictest9-21ksoftirqd/023:10:240
1223994943,4cyclictest21936-21apt23:05:013
122199496,3cyclictest25-21ksoftirqd/119:25:171
122199495,3cyclictest25-21ksoftirqd/100:20:271
122199494,3cyclictest25-21ksoftirqd/121:55:231
1221994915,9cyclictest25-21ksoftirqd/123:15:141
1221994912,6cyclictest25-21ksoftirqd/119:20:131
1220994920,3cyclictest9-21ksoftirqd/019:45:240
1220994917,3cyclictest9-21ksoftirqd/021:45:250
1220994916,4cyclictest9-21ksoftirqd/000:15:260
1221994830,4cyclictest25-21ksoftirqd/123:35:001
122199482,7cyclictest25-21ksoftirqd/100:00:011
1221994813,10cyclictest25-21ksoftirqd/121:05:281
122099484,4cyclictest9-21ksoftirqd/022:50:120
1220994820,4cyclictest9-21ksoftirqd/020:45:270
1220994820,3cyclictest9-21ksoftirqd/021:35:270
1220994819,3cyclictest9-21ksoftirqd/022:55:170
1220994817,8cyclictest9-21ksoftirqd/022:40:170
1220994817,8cyclictest9-21ksoftirqd/020:25:200
1220994816,8cyclictest9-21ksoftirqd/019:20:240
1220994816,4cyclictest9-21ksoftirqd/023:35:260
122299477,7cyclictest33-21ksoftirqd/200:15:002
1222994716,7cyclictest33-21ksoftirqd/223:35:002
1222994716,4cyclictest33-21ksoftirqd/222:50:012
122199476,6cyclictest25-21ksoftirqd/122:35:141
1221994734,10cyclictest25-21ksoftirqd/119:20:011
1221994731,4cyclictest25-21ksoftirqd/100:08:051
1220994718,3cyclictest9-21ksoftirqd/023:50:130
1220994718,3cyclictest9-21ksoftirqd/023:50:130
1220994716,3cyclictest9-21ksoftirqd/020:35:270
1220994713,4cyclictest9-21ksoftirqd/023:40:200
1222994613,12cyclictest33-21ksoftirqd/221:20:012
122199466,6cyclictest25-21ksoftirqd/120:55:121
122199466,6cyclictest25-21ksoftirqd/119:35:141
122199465,7cyclictest25-21ksoftirqd/120:25:281
1221994616,10cyclictest25-21ksoftirqd/123:00:141
1221994615,10cyclictest25-21ksoftirqd/122:15:111
1220994617,3cyclictest9-21ksoftirqd/019:40:190
1220994616,7cyclictest9-21ksoftirqd/021:00:210
1220994612,4cyclictest9-21ksoftirqd/022:35:180
1223994539,3cyclictest28876-21sh21:10:003
1222994527,9cyclictest33-21ksoftirqd/200:01:282
1222994519,8cyclictest33-21ksoftirqd/222:00:162
1222994511,5cyclictest33-21ksoftirqd/222:55:252
122199453,7cyclictest121rcu_preempt20:45:171
1221994535,3cyclictest25-21ksoftirqd/121:20:111
1221994524,11cyclictest25-21ksoftirqd/121:05:011
122199451,2cyclictest121rcu_preempt00:25:111
122199450,7cyclictest25-21ksoftirqd/122:40:201
122099452,2cyclictest121rcu_preempt19:30:000
1220994517,3cyclictest9-21ksoftirqd/000:10:140
1220994513,3cyclictest9-21ksoftirqd/021:40:160
1220994510,7cyclictest9-21ksoftirqd/023:55:150
1223994427,4cyclictest41-21ksoftirqd/319:33:343
1222994432,3cyclictest33-21ksoftirqd/222:10:232
1222994423,10cyclictest33-21ksoftirqd/220:50:222
1222994413,7cyclictest33-21ksoftirqd/219:50:002
122199446,2cyclictest25-21ksoftirqd/121:10:221
1221994435,3cyclictest25-21ksoftirqd/120:40:181
1221994429,3cyclictest25-21ksoftirqd/121:35:311
122199441,8cyclictest25-21ksoftirqd/119:50:131
122199441,2cyclictest0-21swapper/121:30:221
122099441,3cyclictest121rcu_preempt22:15:010
122099441,3cyclictest121rcu_preempt00:35:260
122099441,3cyclictest121rcu_preempt00:35:260
1220994412,3cyclictest9-21ksoftirqd/019:30:250
1220994411,4cyclictest9-21ksoftirqd/023:30:150
122299434,7cyclictest33-21ksoftirqd/220:20:262
1222994319,17cyclictest33-21ksoftirqd/223:45:232
1222994319,17cyclictest33-21ksoftirqd/223:45:232
1222994312,4cyclictest33-21ksoftirqd/223:40:212
1222994310,4cyclictest33-21ksoftirqd/220:45:252
122199436,2cyclictest25-21ksoftirqd/121:15:151
122199435,3cyclictest25-21ksoftirqd/100:35:181
122199435,3cyclictest25-21ksoftirqd/100:35:181
122099437,3cyclictest9-21ksoftirqd/023:20:170
122099435,4cyclictest9-21ksoftirqd/000:25:180
122099433,3cyclictest121rcu_preempt19:40:000
1220994328,5cyclictest9-21ksoftirqd/022:20:260
1220994317,3cyclictest9-21ksoftirqd/020:20:170
1220994313,3cyclictest9-21ksoftirqd/023:25:280
1220994311,4cyclictest9-21ksoftirqd/023:45:130
1220994311,4cyclictest9-21ksoftirqd/023:45:130
1220994310,4cyclictest9-21ksoftirqd/021:20:010
122099430,3cyclictest121rcu_preempt21:20:210
134991420,0ptp4l401ktimersoftd/320:46:333
122299429,4cyclictest33-21ksoftirqd/219:50:212
1222994237,3cyclictest33-21ksoftirqd/220:40:012
1222994237,3cyclictest33-21ksoftirqd/200:40:002
1222994237,3cyclictest33-21ksoftirqd/200:40:002
1222994230,9cyclictest33-21ksoftirqd/220:16:562
1222994227,5cyclictest33-21ksoftirqd/221:35:222
1222994225,8cyclictest33-21ksoftirqd/221:10:262
1222994225,5cyclictest33-21ksoftirqd/221:53:392
1222994224,8cyclictest33-21ksoftirqd/222:30:222
1222994224,8cyclictest33-21ksoftirqd/222:30:222
1222994211,6cyclictest33-21ksoftirqd/219:35:002
1222994210,9cyclictest33-21ksoftirqd/221:42:142
1221994232,3cyclictest25-21ksoftirqd/122:25:231
1220994212,4cyclictest9-21ksoftirqd/022:25:260
1220994211,3cyclictest9-21ksoftirqd/023:00:190
1222994136,3cyclictest33-21ksoftirqd/219:55:162
1222994124,8cyclictest33-21ksoftirqd/222:35:262
1222994123,9cyclictest33-21ksoftirqd/222:50:012
1222994111,4cyclictest33-21ksoftirqd/221:04:592
1222994111,4cyclictest33-21ksoftirqd/219:35:162
1222994111,3cyclictest33-21ksoftirqd/200:15:222
122099413,3cyclictest9-21ksoftirqd/000:05:160
1220994114,3cyclictest9-21ksoftirqd/021:50:170
122099410,3cyclictest121rcu_preempt20:05:220
134991400,0ptp4l401ktimersoftd/321:11:243
122299408,8cyclictest33-21ksoftirqd/222:45:012
1222994026,11cyclictest33-21ksoftirqd/219:15:012
1222994024,7cyclictest33-21ksoftirqd/220:30:162
1222994023,8cyclictest33-21ksoftirqd/221:20:132
1222994022,8cyclictest33-21ksoftirqd/220:10:122
1222994011,4cyclictest33-21ksoftirqd/221:55:222
1222994010,5cyclictest33-21ksoftirqd/220:59:032
1221994034,3cyclictest25-21ksoftirqd/120:20:001
122299397,6cyclictest33-21ksoftirqd/221:25:152
1222993925,4cyclictest33-21ksoftirqd/219:40:262
1222993924,4cyclictest33-21ksoftirqd/220:40:112
1222993923,5cyclictest33-21ksoftirqd/222:25:122
1222993922,5cyclictest33-21ksoftirqd/219:25:202
1222993921,11cyclictest33-21ksoftirqd/220:05:322
122299391,9cyclictest33-21ksoftirqd/219:15:012
122299391,2cyclictest121rcu_preempt23:14:592
122199390,2cyclictest25-21ksoftirqd/120:30:151
1220993929,3cyclictest9-21ksoftirqd/020:30:180
1220993924,4cyclictest9-21ksoftirqd/022:30:290
1220993924,4cyclictest9-21ksoftirqd/022:30:280
134991380,0ptp4l401ktimersoftd/321:03:053
122299389,7cyclictest33-21ksoftirqd/223:55:202
122299388,6cyclictest33-21ksoftirqd/220:00:182
1222993835,2cyclictest33-21ksoftirqd/219:25:002
1222993832,3cyclictest33-21ksoftirqd/200:35:012
1222993824,4cyclictest33-21ksoftirqd/223:50:212
1222993824,4cyclictest33-21ksoftirqd/223:50:212
1222993822,8cyclictest33-21ksoftirqd/221:35:012
122099384,4cyclictest9-21ksoftirqd/022:00:240
122099384,2cyclictest2175-21taskset00:30:390
1220993824,4cyclictest9-21ksoftirqd/022:15:010
1223993731,4cyclictest41-21ksoftirqd/321:40:083
1223993731,4cyclictest41-21ksoftirqd/321:26:283
1223993730,4cyclictest41-21ksoftirqd/323:22:413
122299375,8cyclictest33-21ksoftirqd/223:25:002
122299375,3cyclictest33-21ksoftirqd/223:00:132
122299374,8cyclictest33-21ksoftirqd/223:25:212
122299374,4cyclictest33-21ksoftirqd/222:20:232
122299372,9cyclictest33-21ksoftirqd/200:05:232
1222993719,9cyclictest33-21ksoftirqd/223:05:162
36998360,2rtkit-daemon0-21swapper/323:05:153
1223993632,3cyclictest41-21ksoftirqd/319:20:013
1223993630,4cyclictest41-21ksoftirqd/322:53:173
1223993630,3cyclictest41-21ksoftirqd/322:35:113
122299366,7cyclictest33-21ksoftirqd/200:20:202
122299363,3cyclictest33-21ksoftirqd/223:35:142
122299363,3cyclictest121rcu_preempt21:05:142
1222993620,5cyclictest33-21ksoftirqd/200:30:012
122099368,7cyclictest9-21ksoftirqd/020:40:120
134991350,0ptp4l401ktimersoftd/319:49:153
1223993529,4cyclictest41-21ksoftirqd/321:47:063
1223993529,4cyclictest41-21ksoftirqd/321:23:423
1223993529,4cyclictest41-21ksoftirqd/320:17:393
1223993529,4cyclictest41-21ksoftirqd/300:36:033
1223993529,4cyclictest41-21ksoftirqd/300:36:033
122299351,4cyclictest33-21ksoftirqd/223:15:242
134991340,8ptp4l401ktimersoftd/319:23:553
134991340,0ptp4l401ktimersoftd/322:05:243
134991340,0ptp4l401ktimersoftd/320:11:283
1223993429,3cyclictest41-21ksoftirqd/300:34:303
1223993428,4cyclictest41-21ksoftirqd/323:58:283
1223993428,4cyclictest41-21ksoftirqd/322:47:143
1223993428,4cyclictest41-21ksoftirqd/320:07:043
1223993428,4cyclictest41-21ksoftirqd/319:10:403
1223993428,4cyclictest41-21ksoftirqd/300:02:053
1223993427,4cyclictest41-21ksoftirqd/300:14:493
1222993429,3cyclictest33-21ksoftirqd/220:25:142
122299342,6cyclictest121rcu_preempt22:15:012
1220993429,3cyclictest9-21ksoftirqd/019:15:140
134991330,1ptp4l401ktimersoftd/319:52:573
1223993328,3cyclictest41-21ksoftirqd/323:33:103
1223993328,3cyclictest41-21ksoftirqd/322:31:173
1223993328,3cyclictest41-21ksoftirqd/322:31:163
1223993328,3cyclictest41-21ksoftirqd/300:21:573
1223993327,4cyclictest41-21ksoftirqd/323:19:283
1223993327,4cyclictest41-21ksoftirqd/322:41:093
1223993327,4cyclictest41-21ksoftirqd/322:17:433
1223993327,4cyclictest41-21ksoftirqd/321:59:043
1223993227,3cyclictest41-21ksoftirqd/300:08:313
1223993226,4cyclictest41-21ksoftirqd/323:53:073
1223993226,4cyclictest41-21ksoftirqd/323:53:073
1223993226,4cyclictest41-21ksoftirqd/323:36:543
1223993226,4cyclictest41-21ksoftirqd/322:58:313
1223993226,4cyclictest41-21ksoftirqd/320:51:093
1223993226,4cyclictest41-21ksoftirqd/320:23:173
1223993226,4cyclictest41-21ksoftirqd/319:39:043
134991310,0ptp4l401ktimersoftd/320:40:113
1223993126,3cyclictest41-21ksoftirqd/323:44:453
1223993126,3cyclictest41-21ksoftirqd/319:59:303
1223993125,4cyclictest41-21ksoftirqd/323:12:593
1223993125,4cyclictest41-21ksoftirqd/319:26:263
1223993125,4cyclictest41-21ksoftirqd/300:17:533
134991300,0ptp4l401ktimersoftd/320:04:363
1223993025,3cyclictest41-21ksoftirqd/320:27:563
1223993024,4cyclictest41-21ksoftirqd/300:25:153
1223993023,4cyclictest41-21ksoftirqd/321:34:593
1223992924,3cyclictest41-21ksoftirqd/323:49:583
1223992924,3cyclictest41-21ksoftirqd/323:49:583
1223992924,3cyclictest41-21ksoftirqd/322:22:363
1223992924,3cyclictest41-21ksoftirqd/319:44:083
1223992923,4cyclictest41-21ksoftirqd/320:33:163
1223992823,3cyclictest41-21ksoftirqd/322:29:383
1223992823,3cyclictest41-21ksoftirqd/321:52:413
1223992823,3cyclictest41-21ksoftirqd/320:38:133
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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