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2025-10-21 - 14:43
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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 792 highest latencies:
System rackdslot2.osadl.org (updated Tue Oct 21, 2025 00:45:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
23192239173,22sleep30-21swapper/319:09:043
176722330,15sleep00-21swapper/019:05:250
21972206172,23sleep20-21swapper/219:07:292
22702204171,22sleep10-21swapper/119:08:261
1593221430,4sleep3273599cyclictest00:09:353
1372911070,2ptp4l0-21swapper/320:30:343
137291810,1ptp4l391rcuc/321:55:183
137291800,1ptp4l391rcuc/321:05:273
137291760,1ptp4l391rcuc/319:46:493
137291750,1ptp4l391rcuc/320:55:253
137291740,1ptp4l391rcuc/322:22:503
137291740,1ptp4l391rcuc/320:50:423
137291730,2ptp4l391rcuc/300:10:293
137291720,1ptp4l391rcuc/320:00:103
137291720,1ptp4l391rcuc/319:52:323
137291720,1ptp4l391rcuc/300:15:163
137291710,1ptp4l391rcuc/300:00:243
137291700,1ptp4l391rcuc/321:10:163
137291700,1ptp4l391rcuc/300:20:293
137291690,1ptp4l391rcuc/320:05:183
137291680,1ptp4l391rcuc/323:29:043
2733996532,8cyclictest25-21ksoftirqd/100:00:001
2733996424,8cyclictest25-21ksoftirqd/122:10:261
2733996223,7cyclictest25-21ksoftirqd/122:35:191
2733996128,7cyclictest25-21ksoftirqd/121:30:001
2733996125,7cyclictest25-21ksoftirqd/120:40:201
2733996122,10cyclictest25-21ksoftirqd/123:30:171
2733996030,4cyclictest25-21ksoftirqd/119:10:131
2733996030,3cyclictest25-21ksoftirqd/100:20:181
2733996028,7cyclictest25-21ksoftirqd/123:15:251
2733995930,7cyclictest25-21ksoftirqd/119:50:121
2733995927,6cyclictest25-21ksoftirqd/119:25:001
2733995927,4cyclictest25-21ksoftirqd/122:55:201
2733995922,9cyclictest25-21ksoftirqd/119:45:231
137291590,2ptp4l391rcuc/320:45:133
2733995825,10cyclictest25-21ksoftirqd/121:55:301
2733995825,10cyclictest25-21ksoftirqd/121:40:231
210822580,1sleep00-21swapper/022:05:160
137291580,1ptp4l391rcuc/321:00:153
137291580,1ptp4l391rcuc/300:39:143
2733995724,6cyclictest25-21ksoftirqd/100:35:201
2733995723,8cyclictest25-21ksoftirqd/122:20:251
2733995720,4cyclictest25-21ksoftirqd/122:30:291
2733995719,9cyclictest25-21ksoftirqd/121:30:161
137291570,1ptp4l391rcuc/322:35:563
137291570,1ptp4l391rcuc/320:14:023
2733995625,7cyclictest25-21ksoftirqd/123:35:241
2733995625,6cyclictest25-21ksoftirqd/122:30:001
2733995623,7cyclictest25-21ksoftirqd/122:00:181
2733995621,10cyclictest25-21ksoftirqd/122:45:231
2733995620,7cyclictest25-21ksoftirqd/123:15:011
2733995619,7cyclictest25-21ksoftirqd/123:00:271
2733995619,4cyclictest25-21ksoftirqd/120:07:301
2733995619,10cyclictest25-21ksoftirqd/122:15:201
137291560,1ptp4l391rcuc/322:48:403
137291560,1ptp4l391rcuc/321:30:123
273399554,8cyclictest25-21ksoftirqd/122:40:251
2733995526,4cyclictest25-21ksoftirqd/120:35:251
2733995524,8cyclictest25-21ksoftirqd/121:10:221
2733995524,3cyclictest25-21ksoftirqd/120:55:181
2733995523,7cyclictest25-21ksoftirqd/121:20:171
2733995522,4cyclictest25-21ksoftirqd/100:00:251
2733995521,6cyclictest25-21ksoftirqd/121:15:141
137291550,1ptp4l391rcuc/323:08:393
137291550,1ptp4l391rcuc/322:53:573
137291550,1ptp4l391rcuc/322:09:173
137291550,1ptp4l391rcuc/322:03:323
137291550,1ptp4l391rcuc/321:48:453
137291550,1ptp4l391rcuc/321:21:103
137291550,1ptp4l391rcuc/320:41:273
137291550,1ptp4l391rcuc/319:35:483
137291550,1ptp4l391rcuc/319:24:553
137291550,1ptp4l391rcuc/319:14:563
137291550,1ptp4l391rcuc/300:30:023
137291550,1ptp4l391rcuc/300:27:453
123452550,2sleep20-21swapper/200:00:232
273399544,8cyclictest25-21ksoftirqd/119:55:181
273399544,7cyclictest25-21ksoftirqd/120:25:161
2733995425,8cyclictest25-21ksoftirqd/120:45:211
2733995425,7cyclictest25-21ksoftirqd/120:30:181
2733995421,7cyclictest25-21ksoftirqd/123:40:201
2733995421,7cyclictest25-21ksoftirqd/122:50:121
2733995418,8cyclictest25-21ksoftirqd/100:10:161
153182540,2sleep20-21swapper/219:35:182
137291540,1ptp4l391rcuc/323:56:173
137291540,1ptp4l391rcuc/323:48:393
137291540,1ptp4l391rcuc/323:40:183
137291540,1ptp4l391rcuc/323:33:503
137291540,1ptp4l391rcuc/323:17:463
137291540,1ptp4l391rcuc/323:02:013
137291540,1ptp4l391rcuc/322:29:013
137291540,1ptp4l391rcuc/322:11:123
137291540,1ptp4l391rcuc/321:51:323
137291540,1ptp4l391rcuc/320:35:113
137291540,1ptp4l391rcuc/320:29:433
137291540,1ptp4l391rcuc/320:22:093
137291540,1ptp4l391rcuc/320:17:143
137291540,1ptp4l391rcuc/319:40:583
137291540,1ptp4l391rcuc/319:32:103
137291540,1ptp4l391rcuc/319:16:283
273399534,8cyclictest25-21ksoftirqd/121:00:141
273399534,11cyclictest25-21ksoftirqd/123:20:201
273399533,7cyclictest25-21ksoftirqd/119:30:311
2733995327,7cyclictest25-21ksoftirqd/100:09:341
2733995321,10cyclictest25-21ksoftirqd/119:19:381
2733995317,7cyclictest25-21ksoftirqd/121:50:151
2733995317,7cyclictest25-21ksoftirqd/121:05:281
137291530,1ptp4l391rcuc/323:53:323
137291530,1ptp4l391rcuc/323:53:323
137291530,1ptp4l391rcuc/323:35:003
137291530,1ptp4l391rcuc/323:11:283
137291530,1ptp4l391rcuc/322:57:103
137291530,1ptp4l391rcuc/322:41:033
137291530,1ptp4l391rcuc/322:16:473
137291530,1ptp4l391rcuc/321:40:143
137291530,1ptp4l391rcuc/321:35:263
137291530,1ptp4l391rcuc/321:27:123
137291530,1ptp4l391rcuc/321:15:063
137291530,1ptp4l391rcuc/319:56:163
137291530,1ptp4l391rcuc/319:25:523
137291530,1ptp4l391rcuc/319:25:523
273399524,9cyclictest25-21ksoftirqd/122:05:261
273399524,7cyclictest25-21ksoftirqd/100:15:251
273399523,9cyclictest25-21ksoftirqd/100:25:241
273399523,7cyclictest25-21ksoftirqd/123:45:241
273399523,7cyclictest25-21ksoftirqd/123:25:311
273399523,7cyclictest25-21ksoftirqd/123:05:241
273399523,7cyclictest25-21ksoftirqd/119:40:181
273399523,7cyclictest25-21ksoftirqd/119:35:191
2733995220,7cyclictest25-21ksoftirqd/120:00:231
137291520,1ptp4l391rcuc/323:20:523
137291520,1ptp4l391rcuc/322:30:123
273399516,8cyclictest25-21ksoftirqd/119:25:161
273399516,8cyclictest25-21ksoftirqd/119:25:161
273399514,9cyclictest25-21ksoftirqd/121:45:201
273399514,10cyclictest25-21ksoftirqd/120:15:241
273399513,8cyclictest25-21ksoftirqd/120:50:171
273399513,7cyclictest25-21ksoftirqd/120:20:211
2733995125,9cyclictest25-21ksoftirqd/121:40:011
2733995120,8cyclictest25-21ksoftirqd/100:30:231
273399484,7cyclictest25-21ksoftirqd/123:50:251
273399484,7cyclictest25-21ksoftirqd/123:50:251
273399470,7cyclictest25-21ksoftirqd/120:10:211
2734993832,3cyclictest33-21ksoftirqd/222:00:002
2732993833,3cyclictest9-21ksoftirqd/023:05:000
2734993731,3cyclictest33-21ksoftirqd/219:30:212
2734993725,10cyclictest33-21ksoftirqd/219:50:132
2734993632,3cyclictest33-21ksoftirqd/220:00:002
2734993632,3cyclictest33-21ksoftirqd/219:20:002
2734993631,3cyclictest33-21ksoftirqd/222:50:002
2734993631,3cyclictest33-21ksoftirqd/222:35:152
2734993631,3cyclictest33-21ksoftirqd/222:15:132
2734993630,4cyclictest33-21ksoftirqd/221:46:112
2734993630,4cyclictest33-21ksoftirqd/221:21:572
2734993623,11cyclictest33-21ksoftirqd/200:35:202
2732993630,4cyclictest9-21ksoftirqd/023:44:290
2732993630,4cyclictest9-21ksoftirqd/022:23:440
2732993630,4cyclictest9-21ksoftirqd/022:20:000
2732993630,4cyclictest9-21ksoftirqd/021:58:220
2732993629,5cyclictest9-21ksoftirqd/000:26:160
2734993530,3cyclictest1314-21snmpd22:55:322
2734993529,4cyclictest33-21ksoftirqd/220:36:512
2734993528,4cyclictest33-21ksoftirqd/223:40:502
2732993529,4cyclictest9-21ksoftirqd/022:27:290
2732993529,4cyclictest9-21ksoftirqd/019:59:180
2734993430,3cyclictest33-21ksoftirqd/223:10:152
2734993429,3cyclictest33-21ksoftirqd/220:15:012
2734993429,3cyclictest33-21ksoftirqd/200:20:002
2734993428,4cyclictest33-21ksoftirqd/221:43:392
2734993428,4cyclictest33-21ksoftirqd/221:31:432
2734993428,4cyclictest33-21ksoftirqd/219:25:382
2734993428,4cyclictest33-21ksoftirqd/219:25:382
2734993428,4cyclictest33-21ksoftirqd/219:10:432
2734993428,4cyclictest33-21ksoftirqd/200:06:452
2734993427,5cyclictest33-21ksoftirqd/223:49:522
2734993425,3cyclictest33-21ksoftirqd/222:20:232
2732993429,3cyclictest9-21ksoftirqd/019:48:280
2732993428,4cyclictest9-21ksoftirqd/021:02:420
2732993428,4cyclictest9-21ksoftirqd/020:18:250
2732993428,4cyclictest9-21ksoftirqd/019:18:430
2732993428,4cyclictest9-21ksoftirqd/000:38:040
2734993328,3cyclictest33-21ksoftirqd/223:20:002
2734993328,3cyclictest33-21ksoftirqd/222:35:002
2734993328,3cyclictest33-21ksoftirqd/219:40:182
2734993327,4cyclictest33-21ksoftirqd/222:13:072
2734993322,9cyclictest33-21ksoftirqd/222:25:272
2734993322,9cyclictest33-21ksoftirqd/200:30:152
2732993327,4cyclictest9-21ksoftirqd/023:49:270
2732993327,4cyclictest9-21ksoftirqd/020:49:450
2732993327,4cyclictest9-21ksoftirqd/019:40:050
2732993327,4cyclictest9-21ksoftirqd/019:20:520
2732993327,4cyclictest9-21ksoftirqd/000:12:280
2732993326,4cyclictest9-21ksoftirqd/021:22:020
2734993229,2cyclictest33-21ksoftirqd/223:25:012
2734993228,3cyclictest33-21ksoftirqd/221:16:382
2734993227,3cyclictest33-21ksoftirqd/221:10:132
2734993227,3cyclictest33-21ksoftirqd/220:45:262
2734993227,3cyclictest33-21ksoftirqd/219:20:232
2734993226,4cyclictest33-21ksoftirqd/221:28:152
2734993226,4cyclictest33-21ksoftirqd/221:00:352
2734993226,4cyclictest33-21ksoftirqd/220:02:172
2734993226,4cyclictest33-21ksoftirqd/200:23:432
2734993226,3cyclictest33-21ksoftirqd/220:55:002
2734993225,5cyclictest33-21ksoftirqd/223:37:452
2734993221,9cyclictest33-21ksoftirqd/220:40:252
2734993221,9cyclictest33-21ksoftirqd/220:05:282
2732993227,3cyclictest9-21ksoftirqd/021:51:550
2732993226,4cyclictest9-21ksoftirqd/023:58:160
2732993226,4cyclictest9-21ksoftirqd/022:47:230
2732993226,4cyclictest9-21ksoftirqd/022:01:030
2732993226,4cyclictest9-21ksoftirqd/021:48:380
2732993226,4cyclictest9-21ksoftirqd/021:16:090
2732993226,4cyclictest9-21ksoftirqd/000:16:290
2732993226,4cyclictest9-21ksoftirqd/000:01:370
2734993127,3cyclictest33-21ksoftirqd/222:05:212
2734993126,3cyclictest33-21ksoftirqd/223:54:102
2734993126,3cyclictest33-21ksoftirqd/223:54:092
2734993125,4cyclictest33-21ksoftirqd/223:56:092
2734993125,4cyclictest33-21ksoftirqd/221:07:162
2734993125,4cyclictest33-21ksoftirqd/200:12:302
2734993125,3cyclictest33-21ksoftirqd/220:20:222
2734993118,11cyclictest33-21ksoftirqd/219:45:302
2732993126,3cyclictest9-21ksoftirqd/023:20:060
2732993126,3cyclictest9-21ksoftirqd/021:29:170
2732993126,3cyclictest9-21ksoftirqd/019:31:360
2732993125,4cyclictest9-21ksoftirqd/023:34:300
2732993125,4cyclictest9-21ksoftirqd/000:21:580
2734993026,2cyclictest33-21ksoftirqd/220:55:112
2734993025,3cyclictest33-21ksoftirqd/221:40:002
2734993024,4cyclictest33-21ksoftirqd/223:06:392
2734993024,4cyclictest33-21ksoftirqd/222:01:132
2734993024,4cyclictest33-21ksoftirqd/200:29:072
2734993023,4cyclictest33-21ksoftirqd/220:30:052
2734993018,10cyclictest33-21ksoftirqd/223:25:332
2732993025,3cyclictest9-21ksoftirqd/020:30:410
2732993025,3cyclictest9-21ksoftirqd/020:27:190
2732993025,3cyclictest9-21ksoftirqd/020:04:020
2732993024,4cyclictest9-21ksoftirqd/023:29:090
2732993024,4cyclictest9-21ksoftirqd/021:37:430
2732993024,4cyclictest9-21ksoftirqd/020:41:340
2732993024,4cyclictest9-21ksoftirqd/020:20:490
2734992925,3cyclictest33-21ksoftirqd/221:50:242
2734992924,3cyclictest33-21ksoftirqd/222:55:002
2734992923,4cyclictest33-21ksoftirqd/220:27:252
2734992923,4cyclictest33-21ksoftirqd/220:17:142
2734992918,9cyclictest33-21ksoftirqd/223:00:292
2732992924,3cyclictest9-21ksoftirqd/022:59:510
2732992924,3cyclictest9-21ksoftirqd/021:11:550
2732992923,4cyclictest9-21ksoftirqd/022:51:570
2732992923,4cyclictest9-21ksoftirqd/022:30:140
2732992923,4cyclictest9-21ksoftirqd/021:08:460
2732992923,4cyclictest9-21ksoftirqd/020:55:310
2732992823,3cyclictest9-21ksoftirqd/022:13:490
2732992823,3cyclictest9-21ksoftirqd/000:33:470
2734992722,3cyclictest33-21ksoftirqd/223:34:472
2734992722,3cyclictest33-21ksoftirqd/222:45:002
2732992722,3cyclictest9-21ksoftirqd/023:15:210
2732992721,4cyclictest9-21ksoftirqd/000:07:550
2732992621,3cyclictest9-21ksoftirqd/023:35:550
2732992621,3cyclictest9-21ksoftirqd/022:43:390
2732992621,3cyclictest9-21ksoftirqd/021:43:170
2732992621,3cyclictest9-21ksoftirqd/019:25:030
2732992621,3cyclictest9-21ksoftirqd/019:25:030
2732992519,4cyclictest9-21ksoftirqd/019:11:370
2732992419,3cyclictest9-21ksoftirqd/021:30:120
2732992419,3cyclictest9-21ksoftirqd/020:40:000
2732992419,3cyclictest9-21ksoftirqd/019:51:060
2732992319,2cyclictest9-21ksoftirqd/020:10:210
2732992317,4cyclictest9-21ksoftirqd/023:52:310
2732992317,4cyclictest9-21ksoftirqd/023:52:310
2732992317,4cyclictest9-21ksoftirqd/020:08:530
2732992218,2cyclictest9-21ksoftirqd/022:40:010
2732991914,3cyclictest9-21ksoftirqd/023:06:090
2732991812,3cyclictest15751-21sed19:35:200
2732991613,2cyclictest0-21swapper/020:54:070
2732991611,3cyclictest20811-21load23:10:210
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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