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2026-08-14 - 10:33
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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 Fri Aug 14, 2026 00:45:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
139591232170,22phc2sys0-21swapper/319:06:313
317242211152,47sleep10-21swapper/119:07:381
315592207174,22sleep00-21swapper/019:05:360
316782205172,22sleep20-21swapper/219:07:032
1395918262,11phc2sys0-21swapper/319:10:003
32201996934,9cyclictest41-21ksoftirqd/323:30:013
32201996831,8cyclictest41-21ksoftirqd/322:55:213
32201996829,8cyclictest41-21ksoftirqd/322:45:183
32201996633,4cyclictest41-21ksoftirqd/300:00:193
32201996631,7cyclictest41-21ksoftirqd/321:10:003
32201996631,7cyclictest41-21ksoftirqd/321:10:003
32201996630,10cyclictest41-21ksoftirqd/322:25:013
32201996629,4cyclictest41-21ksoftirqd/321:35:003
32201996533,4cyclictest41-21ksoftirqd/322:15:183
32201996531,4cyclictest41-21ksoftirqd/323:00:143
32201996529,4cyclictest41-21ksoftirqd/323:10:133
32201996430,4cyclictest41-21ksoftirqd/320:10:193
32201996425,7cyclictest41-21ksoftirqd/321:00:223
32201996330,8cyclictest41-21ksoftirqd/322:10:183
32201996328,8cyclictest41-21ksoftirqd/322:40:263
32201996233,8cyclictest41-21ksoftirqd/321:10:213
32201996230,7cyclictest41-21ksoftirqd/300:20:263
32201996230,3cyclictest41-21ksoftirqd/320:05:193
32201996228,10cyclictest41-21ksoftirqd/300:05:173
32201996223,8cyclictest41-21ksoftirqd/322:00:263
32201996130,4cyclictest41-21ksoftirqd/321:55:293
32201996130,10cyclictest41-21ksoftirqd/321:25:253
32201996128,4cyclictest41-21ksoftirqd/321:35:283
32201996122,7cyclictest41-21ksoftirqd/319:55:113
32201996029,9cyclictest41-21ksoftirqd/320:36:363
32201996028,11cyclictest41-21ksoftirqd/300:35:013
32201996026,8cyclictest41-21ksoftirqd/323:55:213
32201996026,8cyclictest41-21ksoftirqd/300:35:133
32201996026,7cyclictest41-21ksoftirqd/323:40:163
32201996026,4cyclictest41-21ksoftirqd/320:20:263
32201996025,7cyclictest41-21ksoftirqd/300:25:253
32201996025,7cyclictest41-21ksoftirqd/300:25:253
32201995931,6cyclictest41-21ksoftirqd/320:55:103
32201995929,10cyclictest41-21ksoftirqd/322:05:203
32201995928,8cyclictest41-21ksoftirqd/319:35:193
32201995926,9cyclictest41-21ksoftirqd/300:15:203
3220199585,7cyclictest41-21ksoftirqd/321:45:003
3220199585,7cyclictest41-21ksoftirqd/321:44:593
32201995830,8cyclictest41-21ksoftirqd/320:50:253
32201995828,7cyclictest41-21ksoftirqd/320:05:003
32201995827,3cyclictest41-21ksoftirqd/323:35:013
32201995824,9cyclictest41-21ksoftirqd/320:40:133
32201995823,8cyclictest41-21ksoftirqd/322:35:173
32201995815,9cyclictest41-21ksoftirqd/322:25:193
32201995729,8cyclictest41-21ksoftirqd/323:50:213
32201995726,9cyclictest41-21ksoftirqd/323:15:193
32201995726,8cyclictest41-21ksoftirqd/320:15:203
32201995722,7cyclictest41-21ksoftirqd/321:15:253
32201995629,4cyclictest41-21ksoftirqd/323:35:163
32201995623,8cyclictest41-21ksoftirqd/319:20:023
32201995620,8cyclictest41-21ksoftirqd/322:30:233
32201995523,7cyclictest41-21ksoftirqd/320:45:163
32201995418,6cyclictest41-21ksoftirqd/320:25:263
3220199537,3cyclictest41-21ksoftirqd/321:55:013
3220199537,3cyclictest41-21ksoftirqd/319:20:243
3220199535,9cyclictest41-21ksoftirqd/319:35:003
3220199533,7cyclictest41-21ksoftirqd/323:05:143
32201995320,9cyclictest41-21ksoftirqd/319:40:243
32201995316,8cyclictest41-21ksoftirqd/320:31:223
32201995221,7cyclictest41-21ksoftirqd/323:20:143
32201995022,9cyclictest41-21ksoftirqd/319:25:143
32201995016,8cyclictest41-21ksoftirqd/321:45:173
3220199495,3cyclictest41-21ksoftirqd/322:50:263
3220199491,9cyclictest41-21ksoftirqd/323:45:183
32201994919,7cyclictest41-21ksoftirqd/321:20:203
139291490,0ptp4l401ktimersoftd/319:45:323
3220199485,8cyclictest41-21ksoftirqd/319:50:183
3220199476,3cyclictest41-21ksoftirqd/300:10:283
32200994740,4cyclictest11555-21sh19:35:002
3219999470,44cyclictest30725-21grep22:30:011
32200994639,4cyclictest16019-21cron22:00:012
32199994035,3cyclictest29258-21cron23:35:011
32198994033,4cyclictest21041-21cron19:55:000
32200993933,4cyclictest33-21ksoftirqd/221:16:202
224852390,2sleep2121rcu_preempt22:10:252
32200993832,4cyclictest33-21ksoftirqd/200:03:412
32199993833,3cyclictest25-21ksoftirqd/123:00:181
32199993833,3cyclictest25-21ksoftirqd/121:20:001
32199993833,3cyclictest18675-21cron19:50:001
32198993830,5cyclictest5479-21cron22:45:000
32200993731,4cyclictest33-21ksoftirqd/223:40:582
32200993731,4cyclictest33-21ksoftirqd/220:35:282
32200993731,4cyclictest33-21ksoftirqd/200:40:012
32200993731,3cyclictest33-21ksoftirqd/219:20:122
32199993733,2cyclictest25-21ksoftirqd/123:40:171
32199993733,2cyclictest25-21ksoftirqd/100:25:001
32199993732,3cyclictest25-21ksoftirqd/119:40:181
32199993732,3cyclictest25-21ksoftirqd/100:35:191
32198993731,4cyclictest9-21ksoftirqd/022:05:040
32200993631,3cyclictest33-21ksoftirqd/220:20:102
32200993630,4cyclictest7917-21wc20:35:002
32200993630,4cyclictest33-21ksoftirqd/223:33:002
32200993630,4cyclictest33-21ksoftirqd/221:40:392
32200993630,4cyclictest33-21ksoftirqd/221:40:392
32200993630,4cyclictest33-21ksoftirqd/221:28:522
32200993630,4cyclictest33-21ksoftirqd/220:15:342
32200993630,3cyclictest33-21ksoftirqd/223:45:562
32200993629,4cyclictest33-21ksoftirqd/200:17:052
32199993633,2cyclictest25-21ksoftirqd/122:20:191
32199993631,3cyclictest25-21ksoftirqd/122:00:011
32199993631,3cyclictest25-21ksoftirqd/121:05:001
32199993631,3cyclictest25-21ksoftirqd/100:30:201
32199993630,4cyclictest25-21ksoftirqd/123:54:281
32199993630,4cyclictest25-21ksoftirqd/123:19:071
32199993630,4cyclictest25-21ksoftirqd/122:16:371
32199993630,4cyclictest25-21ksoftirqd/120:35:071
32199993630,4cyclictest25-21ksoftirqd/120:06:351
32199993630,4cyclictest25-21ksoftirqd/100:19:451
32199993630,4cyclictest25-21ksoftirqd/100:01:141
32198993631,3cyclictest9-21ksoftirqd/020:07:040
32198993630,4cyclictest9-21ksoftirqd/022:29:270
32198993630,4cyclictest9-21ksoftirqd/022:18:200
32198993630,4cyclictest9-21ksoftirqd/021:44:220
32198993630,4cyclictest9-21ksoftirqd/021:44:220
32200993530,3cyclictest33-21ksoftirqd/221:45:412
32200993530,3cyclictest33-21ksoftirqd/219:26:192
32200993530,3cyclictest33-21ksoftirqd/219:11:532
32200993529,4cyclictest33-21ksoftirqd/223:57:392
32200993529,4cyclictest33-21ksoftirqd/223:02:072
32200993529,4cyclictest33-21ksoftirqd/222:58:182
32200993529,4cyclictest33-21ksoftirqd/222:36:142
32200993529,4cyclictest33-21ksoftirqd/221:54:352
32200993529,4cyclictest33-21ksoftirqd/221:39:352
32200993529,4cyclictest33-21ksoftirqd/221:02:562
32200993529,4cyclictest33-21ksoftirqd/220:56:182
32199993531,2cyclictest25-21ksoftirqd/121:55:011
32199993530,3cyclictest25-21ksoftirqd/122:35:201
32199993530,3cyclictest25-21ksoftirqd/122:10:001
32199993530,3cyclictest25-21ksoftirqd/121:31:031
32199993530,3cyclictest25-21ksoftirqd/120:21:111
32199993530,3cyclictest25-21ksoftirqd/119:58:321
32199993530,3cyclictest25-21ksoftirqd/119:50:181
32199993530,3cyclictest25-21ksoftirqd/119:30:251
32199993529,4cyclictest25-21ksoftirqd/121:21:451
32199993529,4cyclictest25-21ksoftirqd/121:06:241
32199993529,4cyclictest25-21ksoftirqd/121:06:241
32199993529,4cyclictest25-21ksoftirqd/120:26:171
3219999350,33cyclictest23361-21latency_hist22:15:001
32198993529,4cyclictest9-21ksoftirqd/023:38:520
32198993529,4cyclictest9-21ksoftirqd/022:22:580
32198993529,4cyclictest9-21ksoftirqd/022:04:070
32198993529,4cyclictest9-21ksoftirqd/021:32:070
32198993529,4cyclictest9-21ksoftirqd/019:57:030
32198993529,4cyclictest9-21ksoftirqd/000:14:300
32198993529,3cyclictest9-21ksoftirqd/022:59:240
41298340,10rtkit-daemon1512-21apache222:53:121
32200993429,3cyclictest33-21ksoftirqd/223:15:122
32200993429,3cyclictest33-21ksoftirqd/222:51:462
32200993429,3cyclictest33-21ksoftirqd/221:22:252
32200993429,3cyclictest33-21ksoftirqd/221:14:442
32200993428,4cyclictest33-21ksoftirqd/222:29:212
32200993428,4cyclictest33-21ksoftirqd/222:19:592
32200993428,4cyclictest33-21ksoftirqd/220:04:192
32200993428,4cyclictest33-21ksoftirqd/219:36:562
32200993428,3cyclictest33-21ksoftirqd/222:45:002
32200993428,3cyclictest33-21ksoftirqd/200:22:032
32200993427,4cyclictest33-21ksoftirqd/223:20:022
32199993429,3cyclictest25-21ksoftirqd/123:05:191
32199993429,3cyclictest25-21ksoftirqd/119:37:541
32199993428,4cyclictest25-21ksoftirqd/122:40:521
32199993428,4cyclictest25-21ksoftirqd/120:58:461
32199993428,3cyclictest25-21ksoftirqd/120:55:001
32199993428,3cyclictest25-21ksoftirqd/119:25:191
32199993426,4cyclictest25-21ksoftirqd/121:25:161
32198993429,3cyclictest9-21ksoftirqd/021:05:550
32198993429,3cyclictest9-21ksoftirqd/021:05:550
32198993429,3cyclictest9-21ksoftirqd/020:41:120
32198993428,4cyclictest9-21ksoftirqd/023:21:590
32198993428,4cyclictest9-21ksoftirqd/022:32:280
32198993428,4cyclictest9-21ksoftirqd/021:47:030
32198993428,4cyclictest9-21ksoftirqd/021:29:060
32198993428,4cyclictest9-21ksoftirqd/020:13:040
32198993428,3cyclictest9-21ksoftirqd/023:43:210
32198993427,4cyclictest9-21ksoftirqd/023:14:570
32198993427,3cyclictest9-21ksoftirqd/000:35:140
32200993328,3cyclictest33-21ksoftirqd/223:27:062
32200993328,3cyclictest33-21ksoftirqd/219:48:262
32200993328,3cyclictest33-21ksoftirqd/219:17:582
32200993328,3cyclictest33-21ksoftirqd/200:26:282
32200993328,3cyclictest33-21ksoftirqd/200:26:272
32200993327,4cyclictest33-21ksoftirqd/220:08:242
32199993329,3cyclictest25-21ksoftirqd/120:10:181
32199993329,2cyclictest25-21ksoftirqd/122:35:001
32199993328,3cyclictest25-21ksoftirqd/123:25:171
32199993328,3cyclictest25-21ksoftirqd/121:50:001
32199993328,3cyclictest25-21ksoftirqd/100:30:011
32199993328,3cyclictest25-21ksoftirqd/100:30:011
32199993327,4cyclictest25-21ksoftirqd/120:34:311
32198993328,3cyclictest9-21ksoftirqd/020:30:370
32198993328,3cyclictest9-21ksoftirqd/020:24:390
32198993328,3cyclictest9-21ksoftirqd/020:00:120
32198993328,3cyclictest9-21ksoftirqd/019:49:170
32198993327,4cyclictest9-21ksoftirqd/023:34:350
32198993327,4cyclictest9-21ksoftirqd/021:18:070
32200993227,3cyclictest33-21ksoftirqd/223:36:182
32200993227,3cyclictest33-21ksoftirqd/223:13:362
32200993227,3cyclictest33-21ksoftirqd/222:21:272
32200993227,3cyclictest33-21ksoftirqd/219:53:062
32200993226,4cyclictest33-21ksoftirqd/222:34:112
32200993226,4cyclictest33-21ksoftirqd/221:07:292
32200993226,4cyclictest33-21ksoftirqd/221:07:292
32200993226,4cyclictest33-21ksoftirqd/200:07:502
32199993227,3cyclictest25-21ksoftirqd/120:45:181
32199993226,4cyclictest25-21ksoftirqd/121:37:171
32199993226,4cyclictest25-21ksoftirqd/119:14:391
32199993226,3cyclictest25-21ksoftirqd/123:35:261
32199993226,3cyclictest25-21ksoftirqd/120:03:581
32198993227,3cyclictest9-21ksoftirqd/023:50:150
32198993227,3cyclictest9-21ksoftirqd/023:15:110
32198993227,3cyclictest9-21ksoftirqd/021:23:080
32198993227,3cyclictest9-21ksoftirqd/019:15:130
32198993226,4cyclictest9-21ksoftirqd/000:07:480
32198993225,4cyclictest9-21ksoftirqd/020:35:020
32198993225,4cyclictest9-21ksoftirqd/019:12:220
32200993126,3cyclictest33-21ksoftirqd/220:43:552
32200993125,4cyclictest33-21ksoftirqd/220:45:072
32199993126,3cyclictest25-21ksoftirqd/123:20:191
32199993126,3cyclictest25-21ksoftirqd/122:49:571
32199993126,3cyclictest25-21ksoftirqd/120:15:161
32199993125,4cyclictest25-21ksoftirqd/122:00:521
32198993126,3cyclictest9-21ksoftirqd/022:45:250
32198993125,4cyclictest9-21ksoftirqd/023:49:190
32198993125,4cyclictest9-21ksoftirqd/023:09:190
32198993125,4cyclictest9-21ksoftirqd/019:40:300
32198993125,4cyclictest9-21ksoftirqd/019:39:310
32198993125,4cyclictest9-21ksoftirqd/019:21:280
296632310,2sleep20-21swapper/220:10:222
32200993025,3cyclictest33-21ksoftirqd/221:30:042
32200993025,3cyclictest33-21ksoftirqd/220:53:572
32200993025,3cyclictest33-21ksoftirqd/220:27:442
32200993024,4cyclictest33-21ksoftirqd/222:46:222
32200993024,4cyclictest33-21ksoftirqd/219:42:552
32199993026,2cyclictest25-21ksoftirqd/100:05:161
32199993025,3cyclictest25-21ksoftirqd/123:58:081
32199993025,3cyclictest25-21ksoftirqd/123:14:141
32199993025,3cyclictest25-21ksoftirqd/121:45:001
32199993025,3cyclictest25-21ksoftirqd/121:45:001
32198993025,3cyclictest9-21ksoftirqd/020:45:270
32198993025,3cyclictest9-21ksoftirqd/020:26:480
32198993024,4cyclictest9-21ksoftirqd/022:39:420
32198993024,4cyclictest9-21ksoftirqd/021:52:370
76042290,5sleep07606-21if_enp4s019:25:180
32200992924,3cyclictest33-21ksoftirqd/223:07:372
32200992924,3cyclictest33-21ksoftirqd/222:00:412
32199992925,3cyclictest25-21ksoftirqd/123:45:131
32199992925,2cyclictest25-21ksoftirqd/119:20:201
32199992924,3cyclictest25-21ksoftirqd/122:57:401
32199992924,3cyclictest25-21ksoftirqd/121:10:401
32199992924,3cyclictest25-21ksoftirqd/120:40:181
32199992923,4cyclictest25-21ksoftirqd/119:19:011
32199992923,4cyclictest25-21ksoftirqd/100:10:301
32198992924,3cyclictest9-21ksoftirqd/021:38:520
32198992924,3cyclictest9-21ksoftirqd/000:30:110
32198992924,3cyclictest9-21ksoftirqd/000:15:200
32198992923,4cyclictest9-21ksoftirqd/023:57:450
32198992923,4cyclictest9-21ksoftirqd/020:59:210
32198992923,4cyclictest9-21ksoftirqd/019:30:430
32198992923,4cyclictest9-21ksoftirqd/000:21:030
32198992923,4cyclictest9-21ksoftirqd/000:04:270
32200992823,3cyclictest33-21ksoftirqd/219:58:002
32200992823,3cyclictest33-21ksoftirqd/200:13:362
32200992822,4cyclictest33-21ksoftirqd/222:05:342
32198992823,3cyclictest9-21ksoftirqd/023:00:410
32198992823,3cyclictest9-21ksoftirqd/020:15:220
32200992722,3cyclictest33-21ksoftirqd/223:54:182
32198992722,3cyclictest9-21ksoftirqd/021:04:390
32198992721,4cyclictest9-21ksoftirqd/023:26:000
32198992721,4cyclictest9-21ksoftirqd/022:51:100
32198992721,4cyclictest9-21ksoftirqd/021:58:420
32198992621,3cyclictest9-21ksoftirqd/022:12:390
32198992621,3cyclictest9-21ksoftirqd/021:13:360
32200992520,3cyclictest33-21ksoftirqd/200:30:432
32198992419,3cyclictest9-21ksoftirqd/020:50:110
32198992115,4cyclictest9-21ksoftirqd/000:26:140
32198992115,4cyclictest9-21ksoftirqd/000:26:130
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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