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2025-12-14 - 03:45
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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 Dec 14, 2025 00:45:46)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
194612224191,23sleep00-21swapper/019:05:020
213762219185,23sleep10-21swapper/119:07:121
215862215180,24sleep20-21swapper/219:09:502
215052212179,22sleep30-21swapper/319:08:463
1627921580,2sleep00-21swapper/020:05:240
173042730,5sleep317309-21missed_timers00:35:313
253112610,2sleep00-21swapper/021:30:280
139291560,1ptp4l401ktimersoftd/319:40:563
79362530,2sleep3401ktimersoftd/320:55:253
139291530,0ptp4l401ktimersoftd/320:40:303
139291530,0ptp4l401ktimersoftd/320:40:303
232402510,2sleep20-21swapper/222:35:242
139291460,0ptp4l401ktimersoftd/322:04:563
139291440,0ptp4l401ktimersoftd/319:54:193
2189299437,3cyclictest25-21ksoftirqd/123:00:001
139291430,35ptp4l0-21swapper/319:10:003
139291430,0ptp4l401ktimersoftd/322:59:533
139291420,0ptp4l401ktimersoftd/323:45:263
139291420,0ptp4l401ktimersoftd/319:47:233
139291410,1ptp4l401ktimersoftd/322:50:203
139291410,1ptp4l401ktimersoftd/322:50:203
21894993932,4cyclictest41-21ksoftirqd/323:50:593
21893993933,3cyclictest33-21ksoftirqd/200:00:002
2189299394,3cyclictest25-21ksoftirqd/122:15:271
21892993934,3cyclictest25-21ksoftirqd/123:40:001
21892993934,3cyclictest25-21ksoftirqd/121:20:221
139291390,0ptp4l401ktimersoftd/322:10:253
21894993832,4cyclictest41-21ksoftirqd/300:34:523
21893993833,3cyclictest33-21ksoftirqd/220:34:592
21893993833,3cyclictest33-21ksoftirqd/200:00:292
21893993831,4cyclictest24623-21irqrtprio23:45:282
2189299388,7cyclictest25-21ksoftirqd/120:40:011
21892993833,3cyclictest25-21ksoftirqd/120:45:251
21892993832,3cyclictest25-21ksoftirqd/100:05:011
21891993832,3cyclictest9-21ksoftirqd/020:29:590
21894993732,3cyclictest41-21ksoftirqd/319:20:003
21894993731,4cyclictest41-21ksoftirqd/323:37:153
21894993731,4cyclictest41-21ksoftirqd/323:05:383
21894993731,4cyclictest41-21ksoftirqd/323:01:213
21894993731,4cyclictest41-21ksoftirqd/300:21:363
21894993731,4cyclictest41-21ksoftirqd/300:09:333
21893993732,3cyclictest33-21ksoftirqd/220:55:012
21893993731,4cyclictest33-21ksoftirqd/221:27:292
21893993731,4cyclictest33-21ksoftirqd/221:10:512
21893993731,4cyclictest33-21ksoftirqd/220:46:092
21893993730,4cyclictest33-21ksoftirqd/221:55:082
21893993730,4cyclictest33-21ksoftirqd/221:21:392
2189299376,4cyclictest25-21ksoftirqd/120:25:281
21892993733,2cyclictest25-21ksoftirqd/100:00:011
21892993732,3cyclictest25-21ksoftirqd/119:35:001
21892993732,3cyclictest25-21ksoftirqd/119:28:051
21892993732,3cyclictest25-21ksoftirqd/100:25:001
21891993732,3cyclictest9-21ksoftirqd/020:40:000
21891993731,4cyclictest9-21ksoftirqd/023:33:190
139291370,0ptp4l401ktimersoftd/322:07:333
21894993630,4cyclictest41-21ksoftirqd/322:24:503
21894993629,4cyclictest41-21ksoftirqd/323:31:173
21893993631,3cyclictest33-21ksoftirqd/221:04:592
21893993631,3cyclictest33-21ksoftirqd/219:20:202
21893993630,4cyclictest33-21ksoftirqd/222:33:362
21893993630,4cyclictest33-21ksoftirqd/219:28:422
21893993630,4cyclictest33-21ksoftirqd/200:18:212
21893993629,4cyclictest33-21ksoftirqd/200:30:092
21892993633,2cyclictest25-21ksoftirqd/100:35:291
21892993632,2cyclictest25-21ksoftirqd/123:50:331
21892993632,2cyclictest25-21ksoftirqd/121:45:241
21892993631,3cyclictest25-21ksoftirqd/121:15:011
21892993631,3cyclictest25-21ksoftirqd/100:10:291
21892993630,4cyclictest25-21ksoftirqd/123:30:591
21892993630,4cyclictest25-21ksoftirqd/121:52:231
21892993630,4cyclictest25-21ksoftirqd/121:30:481
21892993630,4cyclictest25-21ksoftirqd/120:10:411
21892993630,3cyclictest25-21ksoftirqd/123:45:361
21891993632,2cyclictest9-21ksoftirqd/022:20:000
21891993631,3cyclictest9-21ksoftirqd/022:00:280
21891993631,3cyclictest9-21ksoftirqd/000:30:000
21891993630,4cyclictest9-21ksoftirqd/023:37:330
21891993630,4cyclictest9-21ksoftirqd/023:08:240
21891993630,4cyclictest9-21ksoftirqd/020:56:020
21891993630,4cyclictest9-21ksoftirqd/019:28:080
139291360,0ptp4l401ktimersoftd/322:40:473
139291360,0ptp4l401ktimersoftd/321:25:333
21894993529,4cyclictest41-21ksoftirqd/321:39:173
21894993529,4cyclictest41-21ksoftirqd/321:30:023
21894993529,4cyclictest41-21ksoftirqd/321:17:033
21894993529,4cyclictest41-21ksoftirqd/320:45:053
21894993529,4cyclictest41-21ksoftirqd/300:12:303
21894993528,4cyclictest41-21ksoftirqd/320:25:183
21893993530,3cyclictest33-21ksoftirqd/221:49:332
21893993530,3cyclictest33-21ksoftirqd/221:39:292
21893993530,3cyclictest33-21ksoftirqd/221:15:282
21893993530,3cyclictest33-21ksoftirqd/219:57:062
21893993529,4cyclictest33-21ksoftirqd/200:28:082
21893993524,9cyclictest33-21ksoftirqd/220:10:302
2189399351,2cyclictest121rcu_preempt20:35:342
2189299358,3cyclictest25-21ksoftirqd/119:15:361
21892993530,3cyclictest25-21ksoftirqd/123:00:271
21892993530,3cyclictest25-21ksoftirqd/122:45:001
21892993530,3cyclictest25-21ksoftirqd/122:35:351
21892993530,3cyclictest25-21ksoftirqd/122:22:241
21892993530,3cyclictest25-21ksoftirqd/122:05:281
21892993530,3cyclictest25-21ksoftirqd/120:00:001
21892993530,3cyclictest25-21ksoftirqd/119:11:331
21892993529,4cyclictest25-21ksoftirqd/121:09:391
21892993529,3cyclictest25-21ksoftirqd/122:10:341
21892993529,3cyclictest25-21ksoftirqd/100:05:291
21892993528,4cyclictest25-21ksoftirqd/122:00:291
21892993526,7cyclictest25-21ksoftirqd/119:40:011
2189299350,8cyclictest25-21ksoftirqd/121:20:011
21891993530,3cyclictest9-21ksoftirqd/021:20:220
21891993530,3cyclictest9-21ksoftirqd/021:05:280
2189199351,2cyclictest121rcu_preempt00:32:450
21894993429,3cyclictest41-21ksoftirqd/323:12:403
21894993429,3cyclictest41-21ksoftirqd/322:26:433
21894993429,3cyclictest41-21ksoftirqd/320:20:193
21894993429,3cyclictest41-21ksoftirqd/320:19:553
21893993430,3cyclictest33-21ksoftirqd/219:20:002
21893993430,2cyclictest33-21ksoftirqd/223:20:002
21893993429,3cyclictest33-21ksoftirqd/222:00:272
21893993429,3cyclictest33-21ksoftirqd/200:05:212
21893993428,4cyclictest33-21ksoftirqd/200:14:322
21893993428,3cyclictest33-21ksoftirqd/223:35:232
21893993428,3cyclictest33-21ksoftirqd/221:00:002
21893993423,10cyclictest33-21ksoftirqd/220:00:322
2189299343,2cyclictest121rcu_preempt20:05:351
21892993429,3cyclictest25-21ksoftirqd/121:35:231
21892993429,3cyclictest25-21ksoftirqd/121:05:001
21892993429,3cyclictest25-21ksoftirqd/120:40:191
21892993429,3cyclictest25-21ksoftirqd/120:40:191
21892993428,4cyclictest25-21ksoftirqd/120:16:241
21892993428,4cyclictest25-21ksoftirqd/119:49:071
21892993428,3cyclictest25-21ksoftirqd/123:25:231
21891993429,3cyclictest9-21ksoftirqd/022:00:000
21891993429,3cyclictest9-21ksoftirqd/021:10:250
21891993429,3cyclictest9-21ksoftirqd/000:10:280
21891993428,4cyclictest9-21ksoftirqd/021:36:100
21891993428,4cyclictest9-21ksoftirqd/019:36:060
21891993428,4cyclictest9-21ksoftirqd/019:19:420
21891993428,3cyclictest9-21ksoftirqd/022:50:270
21891993428,3cyclictest9-21ksoftirqd/022:50:260
139291340,0ptp4l401ktimersoftd/320:35:313
21894993328,3cyclictest41-21ksoftirqd/322:48:113
21894993328,3cyclictest41-21ksoftirqd/322:35:203
21894993328,3cyclictest41-21ksoftirqd/319:38:003
21894993327,4cyclictest41-21ksoftirqd/323:24:483
21894993327,4cyclictest41-21ksoftirqd/321:10:453
21894993327,4cyclictest41-21ksoftirqd/321:06:563
21893993328,3cyclictest33-21ksoftirqd/222:12:252
21893993328,3cyclictest33-21ksoftirqd/200:35:472
21893993327,4cyclictest33-21ksoftirqd/223:03:042
21893993327,4cyclictest33-21ksoftirqd/222:47:562
21893993327,4cyclictest33-21ksoftirqd/222:43:192
21893993326,3cyclictest33-21ksoftirqd/219:45:212
21893993321,9cyclictest33-21ksoftirqd/222:55:222
21892993329,3cyclictest25-21ksoftirqd/120:55:001
21892993328,3cyclictest25-21ksoftirqd/123:15:201
21892993328,3cyclictest25-21ksoftirqd/123:10:291
21892993328,3cyclictest25-21ksoftirqd/122:30:311
21892993328,3cyclictest25-21ksoftirqd/121:40:271
21892993328,3cyclictest25-21ksoftirqd/121:30:001
21892993328,3cyclictest25-21ksoftirqd/120:00:261
21892993328,3cyclictest25-21ksoftirqd/119:45:011
21892993328,3cyclictest25-21ksoftirqd/119:21:031
21892993328,3cyclictest25-21ksoftirqd/100:25:291
21892993327,4cyclictest25-21ksoftirqd/123:23:461
21892993327,4cyclictest25-21ksoftirqd/122:49:551
21892993327,4cyclictest25-21ksoftirqd/100:16:211
21892993327,3cyclictest25-21ksoftirqd/121:55:311
21891993330,2cyclictest9-21ksoftirqd/020:00:210
21891993329,2cyclictest9-21ksoftirqd/022:30:010
21891993328,3cyclictest9-21ksoftirqd/023:45:060
21891993328,3cyclictest9-21ksoftirqd/023:05:010
21891993328,3cyclictest9-21ksoftirqd/000:05:440
21891993327,4cyclictest9-21ksoftirqd/023:11:490
21891993327,4cyclictest9-21ksoftirqd/022:24:070
21891993327,4cyclictest9-21ksoftirqd/021:45:440
21891993327,4cyclictest9-21ksoftirqd/020:46:270
21891993327,4cyclictest9-21ksoftirqd/019:23:270
21891993327,4cyclictest9-21ksoftirqd/000:38:290
139291330,0ptp4l401ktimersoftd/320:51:403
21894993227,3cyclictest41-21ksoftirqd/320:10:443
21894993227,3cyclictest41-21ksoftirqd/319:57:383
21894993226,4cyclictest41-21ksoftirqd/321:50:533
21894993226,4cyclictest41-21ksoftirqd/319:23:383
21894993226,3cyclictest41-21ksoftirqd/323:42:583
21893993227,3cyclictest33-21ksoftirqd/223:42:432
21893993226,4cyclictest33-21ksoftirqd/223:53:552
21893993226,4cyclictest33-21ksoftirqd/222:28:462
21893993226,4cyclictest33-21ksoftirqd/219:34:002
21893993226,4cyclictest33-21ksoftirqd/219:10:572
21893993226,3cyclictest33-21ksoftirqd/220:44:512
21893993226,3cyclictest33-21ksoftirqd/220:44:512
2189299323,3cyclictest25-21ksoftirqd/123:40:281
21892993227,3cyclictest25-21ksoftirqd/122:55:001
21892993227,3cyclictest25-21ksoftirqd/122:55:001
21892993227,3cyclictest25-21ksoftirqd/120:20:221
21892993227,3cyclictest25-21ksoftirqd/119:50:301
21892993227,3cyclictest25-21ksoftirqd/100:30:351
21892993227,2cyclictest25-21ksoftirqd/123:05:351
21892993226,4cyclictest25-21ksoftirqd/122:25:491
21891993228,2cyclictest9-21ksoftirqd/020:50:280
21891993227,3cyclictest9-21ksoftirqd/023:56:100
21891993227,3cyclictest9-21ksoftirqd/000:15:280
21891993226,4cyclictest9-21ksoftirqd/022:12:560
21891993226,4cyclictest9-21ksoftirqd/021:51:340
21891993226,4cyclictest9-21ksoftirqd/021:41:070
21891993226,4cyclictest9-21ksoftirqd/019:53:230
21891993226,3cyclictest9-21ksoftirqd/019:46:500
21891993226,3cyclictest9-21ksoftirqd/019:40:260
21891993225,4cyclictest9-21ksoftirqd/022:35:140
139291320,0ptp4l401ktimersoftd/321:47:353
21894993125,4cyclictest41-21ksoftirqd/320:08:193
21893993126,3cyclictest33-21ksoftirqd/223:10:232
21893993126,3cyclictest33-21ksoftirqd/222:23:352
21893993126,3cyclictest33-21ksoftirqd/222:05:212
21893993126,3cyclictest33-21ksoftirqd/221:51:192
21893993125,4cyclictest33-21ksoftirqd/220:25:172
21893993125,4cyclictest33-21ksoftirqd/200:23:552
21893993120,9cyclictest33-21ksoftirqd/223:20:352
21892993126,3cyclictest25-21ksoftirqd/120:55:251
21892993126,3cyclictest25-21ksoftirqd/120:30:241
21891993128,2cyclictest9-21ksoftirqd/022:45:330
21891993127,2cyclictest9-21ksoftirqd/020:20:000
21891993126,3cyclictest9-21ksoftirqd/023:26:250
21891993126,3cyclictest9-21ksoftirqd/022:55:200
21891993126,3cyclictest9-21ksoftirqd/022:35:010
21891993126,3cyclictest9-21ksoftirqd/022:05:280
21891993126,3cyclictest9-21ksoftirqd/020:21:560
21891993125,4cyclictest9-21ksoftirqd/023:21:310
21891993125,4cyclictest9-21ksoftirqd/021:05:000
21891993125,4cyclictest9-21ksoftirqd/020:32:100
21891993125,4cyclictest9-21ksoftirqd/000:24:330
139291310,0ptp4l401ktimersoftd/321:00:363
21894993025,3cyclictest41-21ksoftirqd/323:20:013
21894993025,3cyclictest41-21ksoftirqd/321:22:453
21893993025,3cyclictest33-21ksoftirqd/223:28:452
21893993025,3cyclictest33-21ksoftirqd/220:15:452
21893993024,4cyclictest33-21ksoftirqd/221:09:592
21893993024,3cyclictest33-21ksoftirqd/219:44:082
21891993026,3cyclictest9-21ksoftirqd/022:40:300
21891993025,3cyclictest9-21ksoftirqd/023:50:210
21891993025,3cyclictest9-21ksoftirqd/023:20:000
21891993025,3cyclictest9-21ksoftirqd/020:41:550
21891993025,3cyclictest9-21ksoftirqd/020:41:550
21891993024,4cyclictest9-21ksoftirqd/019:59:250
21891993024,4cyclictest9-21ksoftirqd/019:10:510
21891993024,3cyclictest9-21ksoftirqd/000:02:250
139291300,0ptp4l401ktimersoftd/323:26:063
139291300,0ptp4l401ktimersoftd/321:41:563
139291300,0ptp4l401ktimersoftd/320:02:153
21894992924,3cyclictest41-21ksoftirqd/320:30:343
21894992923,4cyclictest41-21ksoftirqd/321:55:183
21894992923,4cyclictest41-21ksoftirqd/300:02:243
21893992925,2cyclictest33-21ksoftirqd/222:54:302
21893992925,2cyclictest33-21ksoftirqd/222:54:292
21893992917,10cyclictest33-21ksoftirqd/222:15:332
21891992924,3cyclictest9-21ksoftirqd/020:15:000
21894992823,3cyclictest41-21ksoftirqd/323:56:143
21894992823,3cyclictest41-21ksoftirqd/322:19:093
21894992822,4cyclictest41-21ksoftirqd/300:16:153
21893992822,4cyclictest33-21ksoftirqd/219:53:502
21893992822,3cyclictest33-21ksoftirqd/223:10:002
21891992823,3cyclictest9-21ksoftirqd/021:26:420
21891992823,3cyclictest9-21ksoftirqd/019:31:050
21893992722,3cyclictest33-21ksoftirqd/221:41:242
21893992722,3cyclictest33-21ksoftirqd/221:30:252
21893992721,4cyclictest33-21ksoftirqd/220:08:472
21891992723,2cyclictest9-21ksoftirqd/021:20:010
21894992621,3cyclictest41-21ksoftirqd/319:30:273
21894992621,3cyclictest41-21ksoftirqd/300:25:353
21893992622,3cyclictest33-21ksoftirqd/219:35:272
21893992621,3cyclictest33-21ksoftirqd/223:30:262
21893992621,3cyclictest33-21ksoftirqd/220:20:262
21891992620,4cyclictest9-21ksoftirqd/023:43:470
139291240,0ptp4l401ktimersoftd/319:25:203
139291230,1ptp4l401ktimersoftd/322:30:113
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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