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2026-06-09 - 06:19
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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 376 highest latencies:
System rackdslot2.osadl.org (updated Tue Jun 09, 2026 00:45:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
21832236169,22sleep00-21swapper/019:09:560
21092218170,36sleep30-21swapper/319:08:593
21282208175,22sleep20-21swapper/219:09:132
18812206172,22sleep10-21swapper/119:06:121
2895621530,7sleep2249599cyclictest22:20:002
542021490,7sleep2249599cyclictest22:35:262
968521230,5sleep2249599cyclictest22:45:202
1395918763,15phc2sys0-21swapper/319:10:023
266732720,4sleep326672-21grep21:05:243
139291610,0ptp4l401ktimersoftd/321:52:193
283142590,2sleep00-21swapper/000:30:240
61302580,2sleep20-21swapper/219:15:222
139291570,1ptp4l401ktimersoftd/320:32:483
288532550,2sleep20-21swapper/223:25:192
288532550,2sleep20-21swapper/223:25:192
139291550,1ptp4l401ktimersoftd/322:35:153
139291530,1ptp4l401ktimersoftd/321:36:063
139291510,1ptp4l401ktimersoftd/322:30:003
2496994933,4cyclictest41-21ksoftirqd/321:30:013
2496994916,9cyclictest41-21ksoftirqd/322:45:183
249599481,45cyclictest0-21swapper/200:30:152
249699464,3cyclictest121rcu_preempt22:20:003
249599467,4cyclictest33-21ksoftirqd/221:25:252
249499450,43cyclictest25276-21dump-pmu-power23:20:001
2496994438,3cyclictest41-21ksoftirqd/320:40:013
249599442,4cyclictest33-21ksoftirqd/223:10:002
2495994328,12cyclictest33-21ksoftirqd/219:29:592
2496994237,3cyclictest41-21ksoftirqd/323:40:013
2496994228,4cyclictest41-21ksoftirqd/322:30:173
139291420,0ptp4l401ktimersoftd/323:55:313
139291420,0ptp4l401ktimersoftd/323:17:113
139291420,0ptp4l401ktimersoftd/319:30:213
2496994127,3cyclictest41-21ksoftirqd/323:40:243
2496994126,3cyclictest41-21ksoftirqd/319:45:263
2496994125,4cyclictest41-21ksoftirqd/320:10:233
249599415,3cyclictest121rcu_preempt19:30:222
249599414,3cyclictest121rcu_preempt20:35:132
249599414,2cyclictest33-21ksoftirqd/219:45:152
2495994128,11cyclictest33-21ksoftirqd/223:20:002
139291410,1ptp4l401ktimersoftd/323:00:293
139291410,1ptp4l401ktimersoftd/300:09:563
139291410,1ptp4l401ktimersoftd/300:09:563
139291410,0ptp4l401ktimersoftd/323:10:193
139291410,0ptp4l401ktimersoftd/320:15:023
139291410,0ptp4l401ktimersoftd/320:15:023
2496994026,3cyclictest41-21ksoftirqd/323:25:243
2496994026,3cyclictest41-21ksoftirqd/323:25:243
2496994026,3cyclictest41-21ksoftirqd/300:35:203
2496994026,3cyclictest41-21ksoftirqd/300:20:203
2496994025,4cyclictest41-21ksoftirqd/300:30:133
249699400,5cyclictest41-21ksoftirqd/322:05:093
249599405,3cyclictest33-21ksoftirqd/221:31:492
2495994027,11cyclictest33-21ksoftirqd/222:25:142
249599402,3cyclictest121rcu_preempt22:10:232
2495994020,8cyclictest33-21ksoftirqd/223:30:142
249599401,4cyclictest33-21ksoftirqd/222:05:232
249599401,3cyclictest33-21ksoftirqd/200:35:192
249599400,3cyclictest121rcu_preempt20:21:442
249599400,2cyclictest121rcu_preempt22:57:142
249599400,2cyclictest121rcu_preempt19:55:242
2489994033,4cyclictest9-21ksoftirqd/020:15:120
2489994033,4cyclictest9-21ksoftirqd/020:15:120
2496993935,2cyclictest41-21ksoftirqd/322:55:003
2496993935,2cyclictest41-21ksoftirqd/322:55:003
2496993933,4cyclictest41-21ksoftirqd/321:30:123
2496993932,4cyclictest41-21ksoftirqd/322:01:403
2496993926,3cyclictest41-21ksoftirqd/323:30:173
2496993925,4cyclictest41-21ksoftirqd/300:10:253
2496993924,4cyclictest41-21ksoftirqd/321:00:233
249599395,3cyclictest121rcu_preempt23:40:182
249599394,3cyclictest33-21ksoftirqd/219:55:002
2495993934,3cyclictest33-21ksoftirqd/220:05:002
2495993934,2cyclictest33-21ksoftirqd/220:50:002
2496993833,3cyclictest41-21ksoftirqd/322:40:193
2496993832,4cyclictest41-21ksoftirqd/319:29:323
2496993832,3cyclictest41-21ksoftirqd/321:15:123
2496993832,3cyclictest41-21ksoftirqd/321:10:143
2496993824,4cyclictest41-21ksoftirqd/320:25:003
2496993824,3cyclictest41-21ksoftirqd/320:45:193
2496993824,3cyclictest41-21ksoftirqd/319:40:203
2496993823,4cyclictest41-21ksoftirqd/320:25:223
2496993823,3cyclictest41-21ksoftirqd/300:25:273
249699381,3cyclictest121rcu_preempt22:20:233
249599388,10cyclictest33-21ksoftirqd/220:50:182
249599385,7cyclictest121rcu_preempt23:35:192
249599384,3cyclictest33-21ksoftirqd/200:15:272
249599383,3cyclictest33-21ksoftirqd/221:43:292
249599383,3cyclictest33-21ksoftirqd/221:15:212
2495993833,3cyclictest50792irq/128-enp1s0-21:14:562
2495993833,3cyclictest33-21ksoftirqd/220:10:292
2495993833,3cyclictest33-21ksoftirqd/220:09:592
2495993833,3cyclictest33-21ksoftirqd/200:10:002
2495993833,3cyclictest33-21ksoftirqd/200:10:002
249599383,2cyclictest121rcu_preempt23:20:142
2495993832,4cyclictest33-21ksoftirqd/221:52:092
2495993831,4cyclictest33-21ksoftirqd/223:50:312
2495993825,11cyclictest33-21ksoftirqd/219:40:012
2495993824,3cyclictest33-21ksoftirqd/221:45:172
2495993823,4cyclictest33-21ksoftirqd/221:05:162
2489993832,4cyclictest9-21ksoftirqd/019:16:050
2496993733,3cyclictest41-21ksoftirqd/320:50:163
2496993733,2cyclictest41-21ksoftirqd/323:05:163
2496993732,3cyclictest41-21ksoftirqd/321:20:143
2496993732,3cyclictest41-21ksoftirqd/319:55:313
2496993731,4cyclictest41-21ksoftirqd/322:10:123
2496993731,3cyclictest41-21ksoftirqd/320:05:143
2496993723,3cyclictest41-21ksoftirqd/323:20:213
2496993723,3cyclictest41-21ksoftirqd/319:35:293
2496993723,3cyclictest41-21ksoftirqd/319:20:123
2496993722,3cyclictest41-21ksoftirqd/319:15:173
249599373,3cyclictest33-21ksoftirqd/200:20:212
2495993733,2cyclictest33-21ksoftirqd/223:00:272
2495993732,3cyclictest33-21ksoftirqd/222:50:112
2495993732,3cyclictest33-21ksoftirqd/222:50:112
2495993732,3cyclictest33-21ksoftirqd/222:30:102
2495993732,3cyclictest33-21ksoftirqd/220:40:122
2495993731,3cyclictest33-21ksoftirqd/219:20:122
2495993722,4cyclictest33-21ksoftirqd/222:40:192
249599370,3cyclictest121rcu_preempt19:10:152
2494993732,3cyclictest25-21ksoftirqd/100:20:181
2489993732,3cyclictest9-21ksoftirqd/023:00:100
2489993732,3cyclictest9-21ksoftirqd/022:20:000
2489993731,4cyclictest9-21ksoftirqd/021:14:360
2489993731,4cyclictest9-21ksoftirqd/020:06:470
2496993633,2cyclictest41-21ksoftirqd/322:55:253
2496993632,3cyclictest41-21ksoftirqd/320:40:153
2496993631,3cyclictest41-21ksoftirqd/319:50:113
2496993622,3cyclictest41-21ksoftirqd/300:15:273
2496993622,3cyclictest41-21ksoftirqd/300:04:503
249599366,3cyclictest121rcu_preempt23:10:272
249599366,3cyclictest121rcu_preempt00:25:242
249599365,3cyclictest121rcu_preempt20:25:262
249599365,3cyclictest121rcu_preempt20:15:212
249599365,3cyclictest121rcu_preempt20:15:212
249599365,3cyclictest121rcu_preempt00:00:242
249599364,3cyclictest121rcu_preempt22:20:262
2495993632,2cyclictest33-21ksoftirqd/222:05:002
2495993632,2cyclictest33-21ksoftirqd/221:55:182
2495993632,2cyclictest33-21ksoftirqd/220:32:212
2495993622,3cyclictest33-21ksoftirqd/221:35:192
249599361,3cyclictest33-21ksoftirqd/219:40:262
2494993631,3cyclictest25-21ksoftirqd/121:38:081
2494993631,3cyclictest25-21ksoftirqd/119:47:511
2489993630,4cyclictest9-21ksoftirqd/000:13:150
2489993629,4cyclictest9-21ksoftirqd/023:07:280
2489993629,4cyclictest9-21ksoftirqd/021:55:240
41298350,2rtkit-daemon0-21swapper/100:13:341
2496993532,2cyclictest41-21ksoftirqd/321:50:003
2496993531,3cyclictest41-21ksoftirqd/321:55:253
2496993531,3cyclictest41-21ksoftirqd/320:05:003
2496993522,3cyclictest41-21ksoftirqd/323:50:253
2496993522,3cyclictest41-21ksoftirqd/323:45:193
249699351,3cyclictest121rcu_preempt20:55:193
2495993531,2cyclictest33-21ksoftirqd/221:05:012
2494993530,3cyclictest25-21ksoftirqd/122:27:501
2494993530,3cyclictest25-21ksoftirqd/121:04:321
2494993530,3cyclictest25-21ksoftirqd/120:50:411
2494993530,3cyclictest25-21ksoftirqd/119:11:211
2494993529,4cyclictest25-21ksoftirqd/122:43:421
2494993529,4cyclictest25-21ksoftirqd/122:06:521
2494993529,4cyclictest25-21ksoftirqd/100:19:301
2494993529,4cyclictest25-21ksoftirqd/100:07:111
2494993529,4cyclictest25-21ksoftirqd/100:07:111
2494993529,3cyclictest25-21ksoftirqd/100:35:141
2494993528,4cyclictest25-21ksoftirqd/122:55:591
2494993528,4cyclictest25-21ksoftirqd/122:53:571
2494993528,4cyclictest25-21ksoftirqd/122:53:571
2489993530,3cyclictest9-21ksoftirqd/022:40:010
2489993530,3cyclictest9-21ksoftirqd/020:59:550
2489993530,3cyclictest9-21ksoftirqd/020:32:550
2489993529,4cyclictest9-21ksoftirqd/021:24:300
2489993529,4cyclictest9-21ksoftirqd/020:47:150
2489993528,4cyclictest9-21ksoftirqd/022:01:570
2489993528,4cyclictest9-21ksoftirqd/020:22:490
2489993528,4cyclictest9-21ksoftirqd/019:54:520
2489993528,4cyclictest9-21ksoftirqd/019:13:280
2489993525,8cyclictest9-21ksoftirqd/019:24:410
249699340,2cyclictest121rcu_preempt21:44:323
2495993430,2cyclictest33-21ksoftirqd/223:55:232
2495993429,3cyclictest33-21ksoftirqd/200:12:412
2495993428,5cyclictest33-21ksoftirqd/223:46:242
2495993428,4cyclictest33-21ksoftirqd/220:58:572
249599342,3cyclictest121rcu_preempt21:20:212
2494993429,3cyclictest25-21ksoftirqd/122:40:001
2494993429,3cyclictest25-21ksoftirqd/121:41:321
2494993429,3cyclictest25-21ksoftirqd/121:31:171
2494993429,3cyclictest25-21ksoftirqd/120:20:091
2494993428,4cyclictest25-21ksoftirqd/122:21:121
2494993428,4cyclictest25-21ksoftirqd/119:51:131
2494993428,3cyclictest25-21ksoftirqd/119:30:141
2494993427,4cyclictest25-21ksoftirqd/121:53:321
2489993429,4cyclictest9-21ksoftirqd/021:32:270
2489993429,3cyclictest9-21ksoftirqd/023:22:340
2489993429,3cyclictest9-21ksoftirqd/021:42:430
2489993429,3cyclictest9-21ksoftirqd/020:25:230
2489993429,3cyclictest9-21ksoftirqd/019:57:090
2489993428,4cyclictest9-21ksoftirqd/022:30:540
2489993428,4cyclictest9-21ksoftirqd/022:11:360
2489993428,4cyclictest9-21ksoftirqd/021:37:460
2489993428,4cyclictest9-21ksoftirqd/019:40:570
2489993427,4cyclictest9-21ksoftirqd/022:46:500
2494993328,3cyclictest25-21ksoftirqd/123:27:341
2494993328,3cyclictest25-21ksoftirqd/123:27:341
2494993328,3cyclictest25-21ksoftirqd/120:40:391
2494993328,3cyclictest25-21ksoftirqd/119:29:081
2494993328,3cyclictest25-21ksoftirqd/100:30:181
2494993327,4cyclictest25-21ksoftirqd/123:49:261
2494993327,4cyclictest25-21ksoftirqd/122:31:191
2494993327,4cyclictest25-21ksoftirqd/119:18:431
2494993327,3cyclictest25-21ksoftirqd/122:10:191
2494993326,4cyclictest25-21ksoftirqd/123:07:331
2494993326,4cyclictest25-21ksoftirqd/121:57:571
2494993326,4cyclictest25-21ksoftirqd/121:12:001
2494993326,4cyclictest25-21ksoftirqd/120:25:101
2489993328,3cyclictest9-21ksoftirqd/023:44:070
2489993328,3cyclictest9-21ksoftirqd/000:29:410
2489993328,3cyclictest9-21ksoftirqd/000:00:100
2489993327,4cyclictest9-21ksoftirqd/020:53:450
2489993327,4cyclictest9-21ksoftirqd/020:01:060
2489993327,4cyclictest9-21ksoftirqd/000:17:330
2489993327,3cyclictest9-21ksoftirqd/022:25:240
2489993326,4cyclictest9-21ksoftirqd/021:48:210
2489993326,4cyclictest9-21ksoftirqd/021:26:470
2489993326,4cyclictest9-21ksoftirqd/021:16:200
2489993326,4cyclictest9-21ksoftirqd/021:01:240
2494993228,3cyclictest25-21ksoftirqd/122:15:161
2494993227,3cyclictest25-21ksoftirqd/123:22:581
2494993227,2cyclictest25-21ksoftirqd/123:15:011
2494993226,4cyclictest25-21ksoftirqd/120:18:241
2494993226,4cyclictest25-21ksoftirqd/120:18:241
2494993226,4cyclictest25-21ksoftirqd/119:22:111
2494993226,4cyclictest25-21ksoftirqd/100:28:241
2489993227,3cyclictest9-21ksoftirqd/022:58:180
2489993227,3cyclictest9-21ksoftirqd/019:30:140
2489993227,3cyclictest9-21ksoftirqd/019:29:120
2489993227,3cyclictest9-21ksoftirqd/000:21:060
2489993226,4cyclictest9-21ksoftirqd/023:28:380
2489993226,4cyclictest9-21ksoftirqd/023:28:380
2489993226,4cyclictest9-21ksoftirqd/023:11:050
2489993226,4cyclictest9-21ksoftirqd/020:12:290
2489993226,4cyclictest9-21ksoftirqd/000:06:460
2489993226,4cyclictest9-21ksoftirqd/000:06:460
2489993226,3cyclictest9-21ksoftirqd/023:15:280
2494993126,3cyclictest25-21ksoftirqd/123:37:581
2494993126,3cyclictest25-21ksoftirqd/123:03:531
2494993126,3cyclictest25-21ksoftirqd/121:22:461
2494993126,3cyclictest25-21ksoftirqd/100:03:001
2494993124,4cyclictest25-21ksoftirqd/123:54:191
2489993125,3cyclictest9-21ksoftirqd/023:59:270
2489993125,3cyclictest9-21ksoftirqd/021:50:150
2489993125,3cyclictest9-21ksoftirqd/000:39:070
2494993025,3cyclictest25-21ksoftirqd/121:20:001
2494993025,3cyclictest25-21ksoftirqd/120:48:051
2494993025,3cyclictest25-21ksoftirqd/120:03:311
2494993024,4cyclictest25-21ksoftirqd/123:41:191
2494993023,4cyclictest25-21ksoftirqd/119:56:301
2489993025,3cyclictest9-21ksoftirqd/023:54:500
2489993025,3cyclictest9-21ksoftirqd/023:39:430
2489993025,3cyclictest9-21ksoftirqd/023:34:550
2489993025,3cyclictest9-21ksoftirqd/022:07:230
2489993024,4cyclictest9-21ksoftirqd/021:07:260
2489993024,4cyclictest9-21ksoftirqd/020:41:340
2489993024,3cyclictest9-21ksoftirqd/022:20:140
2494992924,3cyclictest25-21ksoftirqd/123:33:121
2494992924,3cyclictest25-21ksoftirqd/122:45:111
2494992924,3cyclictest25-21ksoftirqd/120:55:181
2494992924,3cyclictest25-21ksoftirqd/120:05:161
2494992923,4cyclictest25-21ksoftirqd/120:36:501
2494992923,3cyclictest25-21ksoftirqd/122:02:331
2494992922,4cyclictest25-21ksoftirqd/120:10:121
2494992922,4cyclictest25-21ksoftirqd/119:37:071
2489992924,3cyclictest9-21ksoftirqd/019:35:120
2489992923,4cyclictest9-21ksoftirqd/022:42:370
2494992823,3cyclictest25-21ksoftirqd/119:41:171
2489992823,3cyclictest9-21ksoftirqd/020:37:320
2489992823,3cyclictest9-21ksoftirqd/019:45:170
2494992722,3cyclictest25-21ksoftirqd/123:55:161
2494992722,3cyclictest25-21ksoftirqd/121:48:491
2494992622,2cyclictest25-21ksoftirqd/121:25:171
2494992621,3cyclictest25-21ksoftirqd/120:34:451
2489992621,3cyclictest9-21ksoftirqd/023:48:160
2494992519,3cyclictest25-21ksoftirqd/121:10:001
2489992217,3cyclictest9-21ksoftirqd/022:50:360
2489992217,3cyclictest9-21ksoftirqd/022:50:360
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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