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2025-12-21 - 07:34
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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 rackdslot4.osadl.org (updated Sun Dec 21, 2025 00:45:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
169722227199,19sleep10-21swapper/119:07:591
138591227163,53phc2sys0-21swapper/319:08:443
169662203168,23sleep00-21swapper/019:07:540
169682200168,21sleep20-21swapper/219:07:562
318821500,5sleep11742199cyclictest00:05:171
1712928162,10sleep20-21swapper/219:10:012
17421996528,8cyclictest25-21ksoftirqd/122:55:151
17421996433,4cyclictest25-21ksoftirqd/120:50:001
17421996427,9cyclictest25-21ksoftirqd/119:25:221
17421996422,9cyclictest25-21ksoftirqd/120:40:211
17421996331,4cyclictest25-21ksoftirqd/121:30:261
17421996329,4cyclictest25-21ksoftirqd/122:05:251
17421996328,7cyclictest25-21ksoftirqd/123:45:241
138491630,1ptp4l401ktimersoftd/322:34:173
17421996224,4cyclictest25-21ksoftirqd/100:30:231
17421996126,5cyclictest25-21ksoftirqd/120:50:241
17421996126,5cyclictest25-21ksoftirqd/120:50:241
17421996122,4cyclictest25-21ksoftirqd/123:40:171
16362610,8sleep31742399cyclictest00:00:253
17421996030,4cyclictest25-21ksoftirqd/123:55:251
17421996030,4cyclictest25-21ksoftirqd/121:20:231
17421996030,4cyclictest25-21ksoftirqd/121:20:221
17421996025,5cyclictest25-21ksoftirqd/100:25:211
17421996025,5cyclictest25-21ksoftirqd/100:25:211
17421996022,6cyclictest25-21ksoftirqd/122:35:171
17421995930,9cyclictest25-21ksoftirqd/119:50:251
17421995930,4cyclictest25-21ksoftirqd/122:50:011
17421995930,3cyclictest25-21ksoftirqd/119:15:011
17421995926,5cyclictest25-21ksoftirqd/122:40:271
17421995830,4cyclictest25-21ksoftirqd/120:55:311
17421995829,3cyclictest25-21ksoftirqd/123:20:141
17421995827,10cyclictest25-21ksoftirqd/120:15:001
17421995826,8cyclictest25-21ksoftirqd/119:20:241
17421995826,4cyclictest25-21ksoftirqd/121:45:251
17421995826,4cyclictest25-21ksoftirqd/121:00:271
17421995826,10cyclictest25-21ksoftirqd/123:00:151
17421995825,5cyclictest25-21ksoftirqd/121:40:231
17421995824,9cyclictest25-21ksoftirqd/123:05:191
17421995822,10cyclictest25-21ksoftirqd/100:15:171
17421995730,9cyclictest25-21ksoftirqd/119:38:091
17421995725,9cyclictest25-21ksoftirqd/120:00:211
17421995724,7cyclictest25-21ksoftirqd/100:35:171
17421995722,4cyclictest25-21ksoftirqd/121:10:171
17421995722,4cyclictest25-21ksoftirqd/119:30:251
17421995627,4cyclictest25-21ksoftirqd/119:55:271
17421995625,7cyclictest25-21ksoftirqd/121:50:241
17421995625,7cyclictest25-21ksoftirqd/121:50:231
17421995625,4cyclictest25-21ksoftirqd/123:30:191
17421995624,4cyclictest25-21ksoftirqd/123:25:171
138491560,1ptp4l401ktimersoftd/320:58:453
17421995526,9cyclictest25-21ksoftirqd/121:15:151
17421995524,4cyclictest25-21ksoftirqd/120:35:211
17421995524,4cyclictest25-21ksoftirqd/120:25:161
17421995520,4cyclictest25-21ksoftirqd/122:20:271
17421995518,5cyclictest25-21ksoftirqd/122:15:231
17421995518,4cyclictest25-21ksoftirqd/119:15:251
138491550,1ptp4l401ktimersoftd/320:31:323
17421995426,9cyclictest25-21ksoftirqd/121:05:261
17421995426,4cyclictest25-21ksoftirqd/122:25:141
17421995425,3cyclictest25-21ksoftirqd/100:20:131
17421995424,4cyclictest25-21ksoftirqd/123:50:001
17421995420,9cyclictest25-21ksoftirqd/119:40:231
17421995420,7cyclictest25-21ksoftirqd/100:10:171
17421995418,6cyclictest25-21ksoftirqd/121:35:141
17421995416,7cyclictest25-21ksoftirqd/122:15:001
17421995320,7cyclictest25-21ksoftirqd/120:15:271
1742199524,9cyclictest25-21ksoftirqd/121:30:001
17421995225,10cyclictest25-21ksoftirqd/100:00:191
17421995223,9cyclictest25-21ksoftirqd/119:45:241
17421995221,4cyclictest25-21ksoftirqd/123:35:191
17421995221,4cyclictest25-21ksoftirqd/121:55:181
17421995215,9cyclictest25-21ksoftirqd/120:20:241
17421995215,9cyclictest25-21ksoftirqd/120:20:241
138491520,0ptp4l401ktimersoftd/323:13:453
17421995126,9cyclictest25-21ksoftirqd/123:15:131
17421995121,7cyclictest25-21ksoftirqd/123:10:121
17421995120,7cyclictest25-21ksoftirqd/120:30:151
17421995022,10cyclictest25-21ksoftirqd/120:05:241
17421995017,8cyclictest25-21ksoftirqd/122:00:121
17421994915,4cyclictest25-21ksoftirqd/122:30:001
230332480,2sleep00-21swapper/019:20:170
17421994717,9cyclictest25-21ksoftirqd/122:50:151
17422994532,10cyclictest33-21ksoftirqd/222:00:242
17422994439,3cyclictest15383-21fschecks_count23:25:172
138491440,0ptp4l401ktimersoftd/323:55:203
50798430,2rtkit-daemon0-21swapper/219:49:182
17420994324,16cyclictest9-21ksoftirqd/000:17:090
138491430,0ptp4l401ktimersoftd/319:36:103
138491420,0ptp4l401ktimersoftd/300:16:593
17422994136,3cyclictest33-21ksoftirqd/223:55:012
17422994134,4cyclictest33-21ksoftirqd/200:05:012
138491410,0ptp4l401ktimersoftd/323:54:523
138491410,0ptp4l401ktimersoftd/319:41:153
138491400,0ptp4l401ktimersoftd/323:40:143
17422993929,9cyclictest33-21ksoftirqd/222:20:252
17422993927,10cyclictest33-21ksoftirqd/219:35:012
17422993833,3cyclictest33-21ksoftirqd/200:14:592
17422993832,4cyclictest33-21ksoftirqd/200:25:002
17422993832,3cyclictest33-21ksoftirqd/223:35:012
17423993731,4cyclictest7619-21uname00:15:003
17423993731,4cyclictest41-21ksoftirqd/320:52:473
17423993731,4cyclictest41-21ksoftirqd/320:52:463
17423993731,4cyclictest41-21ksoftirqd/319:47:403
17423993730,5cyclictest41-21ksoftirqd/319:52:493
17422993731,4cyclictest33-21ksoftirqd/220:15:032
17420993731,4cyclictest9-21ksoftirqd/021:58:430
17420993714,20cyclictest24227-21cron21:35:010
135191370,2getstats0-21swapper/322:20:283
17423993630,4cyclictest41-21ksoftirqd/322:37:213
17423993630,4cyclictest41-21ksoftirqd/320:42:363
17423993630,4cyclictest41-21ksoftirqd/320:21:213
17423993630,4cyclictest41-21ksoftirqd/320:21:213
17423993630,4cyclictest41-21ksoftirqd/300:33:553
17422993631,3cyclictest33-21ksoftirqd/223:25:012
17422993631,3cyclictest33-21ksoftirqd/219:25:222
17422993630,4cyclictest33-21ksoftirqd/221:01:162
17422993630,4cyclictest33-21ksoftirqd/220:52:502
17422993630,4cyclictest33-21ksoftirqd/220:52:502
17422993630,4cyclictest33-21ksoftirqd/220:47:442
17422993629,5cyclictest33-21ksoftirqd/221:19:332
17420993630,4cyclictest9-21ksoftirqd/020:17:170
17420993613,21cyclictest20493-21sh22:30:170
138491360,0ptp4l401ktimersoftd/320:10:203
17423993529,4cyclictest41-21ksoftirqd/322:56:543
17423993529,4cyclictest41-21ksoftirqd/321:24:483
17423993529,4cyclictest41-21ksoftirqd/321:24:473
17423993529,4cyclictest41-21ksoftirqd/319:25:573
17423993529,4cyclictest41-21ksoftirqd/319:21:403
17422993532,2cyclictest33-21ksoftirqd/220:05:012
17422993530,3cyclictest33-21ksoftirqd/200:00:012
17422993529,4cyclictest33-21ksoftirqd/200:39:512
17422993528,4cyclictest33-21ksoftirqd/221:25:162
17420993530,3cyclictest9-21ksoftirqd/000:20:110
17420993529,4cyclictest9-21ksoftirqd/020:02:410
17420993528,4cyclictest9-21ksoftirqd/019:51:540
17420993511,3cyclictest16513-21unixbench_multi22:20:270
17423993428,4cyclictest41-21ksoftirqd/323:31:253
17423993428,4cyclictest41-21ksoftirqd/323:24:223
17423993428,4cyclictest41-21ksoftirqd/322:43:073
17423993428,4cyclictest41-21ksoftirqd/321:39:003
17423993428,4cyclictest41-21ksoftirqd/321:29:253
17423993428,4cyclictest41-21ksoftirqd/320:38:383
17423993428,4cyclictest41-21ksoftirqd/319:18:033
1742399341,31cyclictest15470-21kworker/3:221:15:143
17422993430,3cyclictest33-21ksoftirqd/221:53:132
17422993430,3cyclictest33-21ksoftirqd/221:53:132
17422993430,2cyclictest33-21ksoftirqd/223:00:012
17422993430,2cyclictest33-21ksoftirqd/222:40:002
17422993430,2cyclictest33-21ksoftirqd/222:30:012
17422993430,2cyclictest33-21ksoftirqd/219:20:002
17422993429,3cyclictest33-21ksoftirqd/221:24:192
17422993429,3cyclictest33-21ksoftirqd/221:24:192
17422993429,3cyclictest33-21ksoftirqd/219:52:442
17422993428,4cyclictest33-21ksoftirqd/223:42:392
17422993428,3cyclictest33-21ksoftirqd/222:30:192
17420993428,4cyclictest9-21ksoftirqd/023:16:450
17420993428,4cyclictest9-21ksoftirqd/022:00:310
17420993428,4cyclictest9-21ksoftirqd/020:31:450
17420993428,4cyclictest9-21ksoftirqd/019:19:320
17420993413,3cyclictest16634-21ptp4l-jitter00:30:240
17420993413,3cyclictest15216-21expr23:25:150
17420993412,3cyclictest24534-21latency_hist20:30:010
17420993411,3cyclictest7198-21cat22:05:160
17423993328,3cyclictest41-21ksoftirqd/322:07:103
17423993327,4cyclictest41-21ksoftirqd/323:04:203
17423993327,4cyclictest41-21ksoftirqd/322:18:243
17423993327,4cyclictest41-21ksoftirqd/321:51:553
17423993327,4cyclictest41-21ksoftirqd/321:51:553
17422993329,2cyclictest33-21ksoftirqd/222:45:322
17422993328,3cyclictest33-21ksoftirqd/223:18:222
17422993328,3cyclictest33-21ksoftirqd/221:05:142
17422993328,3cyclictest33-21ksoftirqd/220:28:412
17422993328,3cyclictest33-21ksoftirqd/219:55:372
17422993327,4cyclictest33-21ksoftirqd/223:46:162
17422993327,4cyclictest33-21ksoftirqd/221:39:502
17420993328,3cyclictest9-21ksoftirqd/023:14:570
17420993327,4cyclictest9-21ksoftirqd/022:59:490
17420993327,4cyclictest9-21ksoftirqd/020:40:510
17420993312,3cyclictest5722-21irqstats20:55:220
17420993312,3cyclictest15284-21if_enp1s020:10:190
17420993310,3cyclictest22109-21latency_hist23:40:010
17420993310,3cyclictest18830-21ptp4l19:10:240
17420993310,3cyclictest12194-21cat21:10:110
138491330,0ptp4l401ktimersoftd/320:05:133
17423993226,4cyclictest41-21ksoftirqd/323:17:003
17423993226,4cyclictest41-21ksoftirqd/321:56:453
17423993226,4cyclictest41-21ksoftirqd/321:49:193
17423993226,4cyclictest41-21ksoftirqd/321:06:553
17423993226,4cyclictest41-21ksoftirqd/320:46:093
17423993226,4cyclictest41-21ksoftirqd/320:02:043
17422993228,3cyclictest33-21ksoftirqd/220:42:562
17422993228,3cyclictest33-21ksoftirqd/220:20:212
17422993228,3cyclictest33-21ksoftirqd/220:20:212
17422993227,3cyclictest33-21ksoftirqd/219:42:592
17422993227,3cyclictest33-21ksoftirqd/200:10:002
1742099328,3cyclictest29931-21latency_hist23:55:010
1742099326,4cyclictest0-21swapper/021:40:120
1742099322,9cyclictest26195-21grep22:40:220
17420993226,4cyclictest9-21ksoftirqd/023:33:380
17420993226,4cyclictest9-21ksoftirqd/023:04:140
17420993226,4cyclictest9-21ksoftirqd/020:36:230
17420993226,4cyclictest9-21ksoftirqd/000:38:000
17420993211,3cyclictest14326-21switchtime00:25:280
17420993211,3cyclictest14326-21switchtime00:25:280
17420993210,3cyclictest5599-21sh23:05:180
17420993210,3cyclictest12665-21seq23:20:150
138491320,8ptp4l401ktimersoftd/319:56:073
17423993126,3cyclictest41-21ksoftirqd/322:50:153
17423993126,3cyclictest41-21ksoftirqd/322:00:243
17423993126,3cyclictest41-21ksoftirqd/321:45:003
17423993126,3cyclictest41-21ksoftirqd/321:11:503
17423993125,4cyclictest41-21ksoftirqd/323:39:593
17422993128,2cyclictest33-21ksoftirqd/222:10:182
17422993127,3cyclictest33-21ksoftirqd/221:30:142
17422993126,3cyclictest33-21ksoftirqd/221:45:092
17422993125,4cyclictest33-21ksoftirqd/223:10:422
17422993125,4cyclictest33-21ksoftirqd/222:07:342
17422993125,4cyclictest33-21ksoftirqd/220:32:162
17422993123,6cyclictest33-21ksoftirqd/220:58:002
1742099319,2cyclictest27842-21grep19:30:180
1742099318,3cyclictest2207-21cat19:45:000
1742099318,3cyclictest11940-21wc21:10:000
1742099312,6cyclictest24597-21latency_hist22:40:000
1742099312,6cyclictest2315-21gnome-shell23:59:590
17420993126,3cyclictest9-21ksoftirqd/023:50:000
17420993126,3cyclictest9-21ksoftirqd/023:42:120
17420993126,3cyclictest9-21ksoftirqd/021:49:390
17420993125,4cyclictest9-21ksoftirqd/020:22:310
17420993125,4cyclictest9-21ksoftirqd/020:22:310
1742099311,5cyclictest31864-21chrt21:50:120
1742099311,5cyclictest31864-21chrt21:50:120
17420993110,3cyclictest25991-21switchtime21:35:250
138491310,0ptp4l401ktimersoftd/322:10:543
17423993026,3cyclictest41-21ksoftirqd/319:13:093
17423993025,3cyclictest41-21ksoftirqd/321:32:103
17423993024,4cyclictest41-21ksoftirqd/323:29:033
17423993024,4cyclictest41-21ksoftirqd/321:00:093
17423993024,4cyclictest41-21ksoftirqd/300:26:523
17423993024,4cyclictest41-21ksoftirqd/300:26:523
17422993026,3cyclictest33-21ksoftirqd/221:11:092
17422993026,3cyclictest33-21ksoftirqd/219:22:092
17422993026,2cyclictest33-21ksoftirqd/223:35:222
17422993025,3cyclictest33-21ksoftirqd/223:05:072
17422993025,3cyclictest33-21ksoftirqd/223:00:212
17422993025,3cyclictest33-21ksoftirqd/222:50:202
17422993024,4cyclictest33-21ksoftirqd/221:56:082
17422993024,3cyclictest33-21ksoftirqd/222:40:592
1742099309,3cyclictest30331-21df22:50:150
1742099307,4cyclictest1968-21cron20:50:000
17420993025,3cyclictest9-21ksoftirqd/022:46:470
17420993025,3cyclictest9-21ksoftirqd/021:22:000
17420993025,3cyclictest9-21ksoftirqd/021:22:000
17420993025,3cyclictest9-21ksoftirqd/019:55:550
17420993024,4cyclictest9-21ksoftirqd/022:27:430
17420993024,4cyclictest9-21ksoftirqd/000:03:470
138491300,0ptp4l401ktimersoftd/322:49:213
138491300,0ptp4l401ktimersoftd/320:25:543
138491300,0ptp4l401ktimersoftd/300:38:593
17423992925,3cyclictest41-21ksoftirqd/322:25:203
17423992924,3cyclictest41-21ksoftirqd/300:05:443
17423992923,4cyclictest41-21ksoftirqd/300:21:063
17422992918,9cyclictest33-21ksoftirqd/221:40:142
1742099299,2cyclictest7396-21cstates21:00:140
1742099296,4cyclictest21364-21sed21:25:300
17420992912,2cyclictest1303-21runrttasks00:09:100
17423992822,4cyclictest41-21ksoftirqd/323:08:573
17422992824,3cyclictest33-21ksoftirqd/219:35:202
17422992823,3cyclictest33-21ksoftirqd/200:25:222
17422992823,3cyclictest33-21ksoftirqd/200:25:222
17422992822,4cyclictest33-21ksoftirqd/220:39:142
17422992818,9cyclictest33-21ksoftirqd/222:15:232
1742099287,3cyclictest15310-21irqrtprio21:15:200
17422992722,3cyclictest33-21ksoftirqd/220:05:192
1742099272,4cyclictest5384-21apt-get00:10:120
17420992722,3cyclictest9-21ksoftirqd/022:15:110
17423992621,3cyclictest41-21ksoftirqd/319:32:263
17423992620,4cyclictest41-21ksoftirqd/320:16:483
17422992621,3cyclictest33-21ksoftirqd/200:15:102
17422992615,9cyclictest33-21ksoftirqd/220:10:222
17422992614,9cyclictest33-21ksoftirqd/200:30:242
17420992621,3cyclictest9-21ksoftirqd/020:53:260
17420992621,3cyclictest9-21ksoftirqd/020:53:260
17420992621,3cyclictest9-21ksoftirqd/019:45:080
1742099261,6cyclictest9576-21apt-get22:10:120
138491240,0ptp4l401ktimersoftd/323:45:253
17420992317,4cyclictest9-21ksoftirqd/019:25:340
17420991914,3cyclictest12908-21iostat20:05:180
17420991712,3cyclictest9-21ksoftirqd/019:35:120
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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