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2026-05-31 - 11:07
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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 rackdslot2.osadl.org (updated Sun May 31, 2026 00:45:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
139591209176,22phc2sys0-21swapper/319:08:233
291462205170,23sleep20-21swapper/219:05:022
309812204171,22sleep10-21swapper/119:06:101
312452203170,22sleep00-21swapper/019:09:300
1920521370,6sleep33157999cyclictest19:50:173
139291580,1ptp4l401ktimersoftd/319:20:253
139291500,0ptp4l401ktimersoftd/320:57:363
139291490,0ptp4l401ktimersoftd/320:37:083
31578994829,16cyclictest33-21ksoftirqd/222:45:002
139291430,0ptp4l401ktimersoftd/319:35:253
31576994237,2cyclictest22856-21irqrtprio00:25:190
205612420,1sleep020560-21sed22:05:240
139291420,0ptp4l401ktimersoftd/300:14:023
31578994134,4cyclictest217-21systemd-journal00:35:002
31577994137,2cyclictest25-21ksoftirqd/121:40:001
139291410,0ptp4l401ktimersoftd/320:30:153
139291410,0ptp4l401ktimersoftd/320:24:553
41298400,3rtkit-daemon20879-21iostat_ios23:15:191
31578994035,3cyclictest33-21ksoftirqd/200:30:002
31578994028,10cyclictest33-21ksoftirqd/219:50:272
31577994035,3cyclictest25-21ksoftirqd/123:40:321
139291400,0ptp4l401ktimersoftd/320:25:323
31579993933,4cyclictest41-21ksoftirqd/322:41:313
31579993932,4cyclictest41-21ksoftirqd/323:28:233
3157999391,36cyclictest9474-21cron00:00:003
31578993935,3cyclictest33-21ksoftirqd/223:20:012
31578993934,3cyclictest33-21ksoftirqd/200:20:002
31577993934,3cyclictest25-21ksoftirqd/100:10:001
31577993933,4cyclictest25-21ksoftirqd/120:12:271
31576993933,3cyclictest9-21ksoftirqd/023:40:000
31576993933,3cyclictest9-21ksoftirqd/023:40:000
31576993933,3cyclictest9-21ksoftirqd/022:10:140
31579993832,4cyclictest41-21ksoftirqd/300:37:153
31579993831,4cyclictest41-21ksoftirqd/300:09:273
31578993834,2cyclictest33-21ksoftirqd/221:15:002
31578993833,3cyclictest33-21ksoftirqd/220:04:512
31578993833,3cyclictest33-21ksoftirqd/219:15:002
31578993832,3cyclictest33-21ksoftirqd/220:05:202
31578993818,17cyclictest33-21ksoftirqd/221:55:002
31578993817,9cyclictest33-21ksoftirqd/220:45:142
31577993833,3cyclictest25-21ksoftirqd/122:55:001
31577993833,3cyclictest25-21ksoftirqd/119:30:271
31577993832,4cyclictest25-21ksoftirqd/122:05:091
31577993832,4cyclictest25-21ksoftirqd/121:25:581
31577993832,4cyclictest25-21ksoftirqd/120:48:591
31577993832,4cyclictest25-21ksoftirqd/100:17:321
31576993832,4cyclictest9-21ksoftirqd/019:20:000
31579993732,3cyclictest41-21ksoftirqd/320:40:203
31579993732,3cyclictest41-21ksoftirqd/319:15:173
31579993731,4cyclictest41-21ksoftirqd/321:47:143
31579993731,4cyclictest41-21ksoftirqd/321:15:373
31579993731,4cyclictest41-21ksoftirqd/320:10:543
31579993731,4cyclictest41-21ksoftirqd/319:41:253
31579993730,4cyclictest41-21ksoftirqd/323:31:203
31578993732,3cyclictest33-21ksoftirqd/223:25:002
31578993731,3cyclictest33-21ksoftirqd/200:35:452
31578993726,9cyclictest33-21ksoftirqd/222:20:142
3157799376,4cyclictest25-21ksoftirqd/119:20:171
31577993732,3cyclictest25-21ksoftirqd/123:10:001
31577993732,3cyclictest25-21ksoftirqd/123:10:001
31577993732,3cyclictest25-21ksoftirqd/123:05:001
31577993732,3cyclictest25-21ksoftirqd/121:10:011
31577993731,4cyclictest25-21ksoftirqd/100:06:361
31577993731,3cyclictest25-21ksoftirqd/122:05:001
3157799372,3cyclictest25-21ksoftirqd/119:25:141
31576993732,3cyclictest9-21ksoftirqd/022:20:190
31576993732,3cyclictest9-21ksoftirqd/020:35:010
31576993732,3cyclictest9-21ksoftirqd/020:10:180
31576993732,3cyclictest9-21ksoftirqd/019:15:000
31576993731,4cyclictest9-21ksoftirqd/023:15:530
31579993632,3cyclictest41-21ksoftirqd/321:54:593
31579993631,3cyclictest7205-21grep21:40:163
31579993631,3cyclictest41-21ksoftirqd/322:04:393
31579993631,3cyclictest41-21ksoftirqd/319:30:123
31579993630,4cyclictest41-21ksoftirqd/323:15:443
31579993630,4cyclictest41-21ksoftirqd/322:19:433
31579993630,4cyclictest41-21ksoftirqd/320:04:083
31579993630,4cyclictest41-21ksoftirqd/300:34:473
31578993632,3cyclictest33-21ksoftirqd/220:00:002
31578993632,2cyclictest33-21ksoftirqd/221:05:002
31578993631,3cyclictest33-21ksoftirqd/223:42:342
31578993631,3cyclictest33-21ksoftirqd/223:10:002
31578993631,3cyclictest33-21ksoftirqd/223:10:002
31578993631,3cyclictest33-21ksoftirqd/219:30:182
31578993630,4cyclictest33-21ksoftirqd/222:00:372
31578993630,4cyclictest33-21ksoftirqd/220:31:312
31578993630,4cyclictest33-21ksoftirqd/220:16:022
31578993630,4cyclictest33-21ksoftirqd/219:20:392
31578993630,4cyclictest33-21ksoftirqd/200:12:192
31577993632,2cyclictest25-21ksoftirqd/121:05:001
31577993631,3cyclictest25-21ksoftirqd/123:15:001
31577993631,3cyclictest25-21ksoftirqd/121:50:261
31577993631,3cyclictest25-21ksoftirqd/121:50:011
31577993631,3cyclictest25-21ksoftirqd/120:40:191
31577993630,4cyclictest25-21ksoftirqd/123:35:031
31577993630,4cyclictest25-21ksoftirqd/123:35:031
31577993630,4cyclictest25-21ksoftirqd/120:59:581
31577993630,4cyclictest25-21ksoftirqd/119:46:451
31577993630,4cyclictest25-21ksoftirqd/119:46:451
31577993630,4cyclictest25-21ksoftirqd/119:40:031
31577993630,3cyclictest25-21ksoftirqd/122:15:121
31577993630,3cyclictest25-21ksoftirqd/121:20:001
31577993630,3cyclictest25-21ksoftirqd/119:50:011
31576993632,2cyclictest9-21ksoftirqd/020:40:000
31576993631,3cyclictest9-21ksoftirqd/019:30:260
31576993630,4cyclictest9-21ksoftirqd/022:31:000
31576993630,4cyclictest9-21ksoftirqd/022:00:430
31576993630,4cyclictest9-21ksoftirqd/020:27:290
31576993630,4cyclictest9-21ksoftirqd/019:45:320
31576993630,4cyclictest9-21ksoftirqd/019:45:320
31576993630,4cyclictest9-21ksoftirqd/000:07:480
31576993630,4cyclictest9-21ksoftirqd/000:02:500
31576993630,3cyclictest9-21ksoftirqd/000:16:420
31576993629,4cyclictest9-21ksoftirqd/020:58:140
31579993530,3cyclictest41-21ksoftirqd/322:13:423
31579993530,3cyclictest41-21ksoftirqd/321:12:043
31579993530,3cyclictest41-21ksoftirqd/300:21:283
31579993529,4cyclictest41-21ksoftirqd/321:07:433
31579993529,4cyclictest41-21ksoftirqd/300:28:533
31579993523,3cyclictest41-21ksoftirqd/322:45:403
31578993530,3cyclictest33-21ksoftirqd/222:05:182
31578993530,3cyclictest33-21ksoftirqd/221:23:522
31578993530,3cyclictest33-21ksoftirqd/219:47:432
31578993530,3cyclictest33-21ksoftirqd/219:47:422
31578993529,4cyclictest33-21ksoftirqd/223:12:222
31578993515,9cyclictest33-21ksoftirqd/222:55:222
31577993530,3cyclictest25-21ksoftirqd/120:15:191
31577993530,3cyclictest25-21ksoftirqd/120:00:121
31577993530,3cyclictest25-21ksoftirqd/119:10:241
31577993530,3cyclictest25-21ksoftirqd/100:05:001
31577993530,3cyclictest25-21ksoftirqd/100:00:001
31577993530,2cyclictest25-21ksoftirqd/121:30:131
31577993529,4cyclictest25-21ksoftirqd/123:34:311
31577993529,4cyclictest25-21ksoftirqd/122:45:341
31577993529,3cyclictest25-21ksoftirqd/120:30:001
3157799351,3cyclictest121rcu_preempt20:05:161
31576993531,2cyclictest9-21ksoftirqd/023:35:000
31576993531,2cyclictest9-21ksoftirqd/000:40:000
31576993530,3cyclictest9-21ksoftirqd/022:50:010
31576993530,3cyclictest9-21ksoftirqd/020:40:190
31576993530,3cyclictest9-21ksoftirqd/019:39:260
31576993529,4cyclictest9-21ksoftirqd/022:18:400
31576993529,4cyclictest9-21ksoftirqd/020:22:220
31576993529,4cyclictest9-21ksoftirqd/019:41:300
31576993528,4cyclictest9-21ksoftirqd/022:56:070
3157699350,5cyclictest18044-21kworker/0:022:35:280
3157699350,5cyclictest18044-21kworker/0:022:35:270
139291350,0ptp4l401ktimersoftd/300:15:123
31579993429,3cyclictest41-21ksoftirqd/323:20:113
31579993429,3cyclictest41-21ksoftirqd/322:07:203
31579993429,3cyclictest41-21ksoftirqd/321:26:333
31579993429,3cyclictest41-21ksoftirqd/320:54:473
31579993429,3cyclictest41-21ksoftirqd/319:46:563
31579993429,3cyclictest41-21ksoftirqd/319:46:563
31579993428,4cyclictest41-21ksoftirqd/323:54:593
31579993428,4cyclictest41-21ksoftirqd/319:11:413
31578993429,3cyclictest33-21ksoftirqd/222:45:122
31578993429,3cyclictest33-21ksoftirqd/200:04:252
31578993428,4cyclictest33-21ksoftirqd/223:59:392
31578993428,4cyclictest33-21ksoftirqd/223:55:002
31578993428,4cyclictest33-21ksoftirqd/223:30:072
31578993428,4cyclictest33-21ksoftirqd/221:06:012
31578993428,4cyclictest33-21ksoftirqd/220:41:022
31578993428,4cyclictest33-21ksoftirqd/200:22:022
31577993430,3cyclictest25-21ksoftirqd/122:40:131
31577993430,2cyclictest25-21ksoftirqd/100:35:001
31577993430,2cyclictest25-21ksoftirqd/100:25:281
31577993429,3cyclictest25-21ksoftirqd/123:25:141
31577993429,3cyclictest25-21ksoftirqd/122:56:081
31577993429,3cyclictest25-21ksoftirqd/120:35:141
31577993428,4cyclictest25-21ksoftirqd/123:22:441
31577993428,4cyclictest25-21ksoftirqd/122:35:101
31577993428,4cyclictest25-21ksoftirqd/122:35:101
31577993428,4cyclictest25-21ksoftirqd/100:38:061
31576993429,3cyclictest9-21ksoftirqd/021:45:200
31576993429,3cyclictest9-21ksoftirqd/021:20:200
31576993429,3cyclictest9-21ksoftirqd/021:00:180
31576993429,3cyclictest9-21ksoftirqd/020:55:010
31576993429,3cyclictest9-21ksoftirqd/019:25:180
31576993428,4cyclictest9-21ksoftirqd/021:31:100
31576993428,4cyclictest9-21ksoftirqd/021:09:320
31576993428,4cyclictest9-21ksoftirqd/020:15:080
31576993428,3cyclictest9-21ksoftirqd/023:05:180
31576993428,3cyclictest9-21ksoftirqd/023:05:180
31576993428,3cyclictest9-21ksoftirqd/021:40:000
1395913428,3phc2sys41-21ksoftirqd/323:10:133
31579993329,2cyclictest41-21ksoftirqd/300:00:333
31579993328,3cyclictest41-21ksoftirqd/323:48:363
31579993328,3cyclictest41-21ksoftirqd/322:57:073
31579993328,3cyclictest41-21ksoftirqd/321:37:353
31579993327,4cyclictest41-21ksoftirqd/323:37:503
31579993327,4cyclictest41-21ksoftirqd/323:37:503
31579993327,4cyclictest41-21ksoftirqd/323:05:533
31579993327,4cyclictest41-21ksoftirqd/323:05:533
31579993327,4cyclictest41-21ksoftirqd/321:31:463
31579993327,4cyclictest41-21ksoftirqd/320:49:453
31579993327,4cyclictest41-21ksoftirqd/320:06:003
31578993328,3cyclictest33-21ksoftirqd/222:30:202
31578993328,3cyclictest33-21ksoftirqd/221:55:592
31578993328,3cyclictest33-21ksoftirqd/221:49:142
31578993327,4cyclictest33-21ksoftirqd/221:44:412
31578993327,4cyclictest33-21ksoftirqd/221:35:292
31578993327,4cyclictest33-21ksoftirqd/220:10:082
31578993327,3cyclictest33-21ksoftirqd/222:52:582
31577993329,3cyclictest25-21ksoftirqd/121:20:191
31577993328,3cyclictest25-21ksoftirqd/123:50:001
31577993328,3cyclictest25-21ksoftirqd/122:20:201
31577993328,3cyclictest25-21ksoftirqd/121:55:101
31577993328,2cyclictest25-21ksoftirqd/119:15:171
3157799332,2cyclictest121rcu_preempt19:55:211
31576993329,2cyclictest9-21ksoftirqd/021:25:200
31576993328,3cyclictest9-21ksoftirqd/023:45:010
31576993328,3cyclictest9-21ksoftirqd/023:10:180
31576993328,3cyclictest9-21ksoftirqd/000:11:090
31576993327,4cyclictest9-21ksoftirqd/023:56:290
31576993327,4cyclictest9-21ksoftirqd/022:42:230
31576993327,4cyclictest9-21ksoftirqd/019:53:420
1360123328,2sleep2321ktimersoftd/200:05:262
31579993227,3cyclictest41-21ksoftirqd/323:40:453
31579993227,3cyclictest41-21ksoftirqd/320:19:263
31579993227,3cyclictest41-21ksoftirqd/319:25:113
31578993227,3cyclictest33-21ksoftirqd/222:17:002
31578993227,3cyclictest33-21ksoftirqd/219:40:192
31578993227,3cyclictest33-21ksoftirqd/219:35:442
31578993225,5cyclictest33-21ksoftirqd/219:28:122
31577993227,3cyclictest25-21ksoftirqd/122:28:231
31577993227,3cyclictest25-21ksoftirqd/121:45:001
31577993227,3cyclictest25-21ksoftirqd/121:11:371
31577993227,3cyclictest25-21ksoftirqd/119:35:271
31577993226,3cyclictest25-21ksoftirqd/122:30:231
31577993226,3cyclictest25-21ksoftirqd/122:10:151
31576993227,3cyclictest9-21ksoftirqd/021:56:540
31576993227,3cyclictest9-21ksoftirqd/021:45:000
31576993227,3cyclictest9-21ksoftirqd/020:09:310
31576993226,4cyclictest9-21ksoftirqd/021:14:410
31576993226,4cyclictest9-21ksoftirqd/020:46:570
31576993226,4cyclictest9-21ksoftirqd/000:33:390
31576993226,3cyclictest9-21ksoftirqd/021:55:000
31579993126,3cyclictest41-21ksoftirqd/322:30:003
31579993126,3cyclictest41-21ksoftirqd/319:55:123
31579993124,4cyclictest41-21ksoftirqd/322:35:003
31578993126,3cyclictest33-21ksoftirqd/221:28:112
31578993126,3cyclictest28551-21kworker/2:223:25:272
31578993125,4cyclictest33-21ksoftirqd/223:35:572
31578993125,4cyclictest33-21ksoftirqd/223:35:572
31578993125,4cyclictest33-21ksoftirqd/221:30:252
31578993125,4cyclictest33-21ksoftirqd/220:22:122
31578993119,10cyclictest33-21ksoftirqd/223:45:262
31578993119,10cyclictest33-21ksoftirqd/222:35:242
31578993119,10cyclictest33-21ksoftirqd/222:35:242
31578993119,10cyclictest33-21ksoftirqd/220:25:282
31577993126,3cyclictest25-21ksoftirqd/120:25:011
31577993125,3cyclictest25-21ksoftirqd/100:20:181
3157799311,6cyclictest121rcu_preempt20:50:121
31576993126,3cyclictest9-21ksoftirqd/019:21:410
31576993125,4cyclictest9-21ksoftirqd/023:40:040
31576993125,4cyclictest9-21ksoftirqd/021:19:510
31576993125,3cyclictest9-21ksoftirqd/023:25:310
31576993125,3cyclictest9-21ksoftirqd/022:50:180
31576993124,4cyclictest9-21ksoftirqd/023:53:120
31576993124,4cyclictest9-21ksoftirqd/000:24:290
31579993025,3cyclictest41-21ksoftirqd/322:21:533
31579993025,3cyclictest41-21ksoftirqd/321:03:193
3157799304,2cyclictest121rcu_preempt23:50:161
31576993025,3cyclictest9-21ksoftirqd/020:04:590
31576993023,4cyclictest9-21ksoftirqd/023:00:090
31579992925,3cyclictest41-21ksoftirqd/321:55:263
31579992923,4cyclictest41-21ksoftirqd/321:24:033
31578992918,9cyclictest33-21ksoftirqd/222:25:242
31577992924,3cyclictest25-21ksoftirqd/120:34:311
31576992924,3cyclictest9-21ksoftirqd/022:25:190
31576992924,3cyclictest9-21ksoftirqd/019:55:240
31579992823,3cyclictest41-21ksoftirqd/322:35:173
31579992823,3cyclictest41-21ksoftirqd/322:35:173
31578992823,3cyclictest33-21ksoftirqd/222:13:202
31578992822,3cyclictest33-21ksoftirqd/220:35:332
31578992817,10cyclictest33-21ksoftirqd/219:15:152
31576992822,3cyclictest9-21ksoftirqd/023:20:010
31579992621,3cyclictest41-21ksoftirqd/323:03:383
31578992621,3cyclictest33-21ksoftirqd/220:55:182
31578992620,3cyclictest15539-21cut20:50:152
31578992615,9cyclictest33-21ksoftirqd/223:00:182
31578992520,3cyclictest33-21ksoftirqd/221:20:002
139291250,0ptp4l401ktimersoftd/322:50:193
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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