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2026-06-01 - 22:36
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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 rackdslot3.osadl.org (updated Mon Jun 01, 2026 12:45:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
69092208175,22sleep20-21swapper/207:06:572
68472207173,22sleep30-21swapper/307:06:093
68442204171,22sleep00-21swapper/007:06:070
70642201168,22sleep10-21swapper/107:08:561
139391750,2ptp4l391rcuc/307:55:263
744699671,25cyclictest1-21systemd11:40:231
744699671,25cyclictest1-21systemd11:40:231
7445996730,4cyclictest9-21ksoftirqd/012:40:000
744699661,23cyclictest8595-21latency_hist08:19:591
744699660,24cyclictest25574-21cat08:55:011
744699651,23cyclictest28394-21df_abs09:00:151
744699650,26cyclictest10182-21sed07:15:151
744699650,25cyclictest28943-21cut11:15:191
744699650,24cyclictest25752-21cat10:00:261
744699650,23cyclictest1541-21latency_hist08:05:011
744699641,25cyclictest17767-21sed12:00:181
744699640,25cyclictest6251-21sed09:20:181
744699640,24cyclictest8648-21cat10:35:001
744699640,24cyclictest28307-21cat07:50:271
744699640,24cyclictest17983-21cut09:45:191
744699640,23cyclictest987-21chrt12:31:211
744699640,23cyclictest987-21chrt12:31:211
744699640,23cyclictest22863-21date09:55:221
7447996333,7cyclictest33-21ksoftirqd/212:40:002
744699631,26cyclictest18866-21/usr/sbin/munin07:30:271
744699631,25cyclictest0-21swapper/111:05:201
744699631,23cyclictest28203-21timerwakeupswit10:05:251
744699630,33cyclictest2904-21awk08:05:261
744699630,24cyclictest13896-21sed09:35:261
744699630,24cyclictest13008-21chrt10:41:451
744699630,23cyclictest23120-21ptp4l12:10:221
744699620,25cyclictest1805-21cat12:35:131
744699620,24cyclictest12673-21df_abs11:50:131
744699620,22cyclictest11163-21cat08:25:001
7445996230,4cyclictest9-21ksoftirqd/010:20:140
7447996124,6cyclictest33-21ksoftirqd/207:59:592
744699610,24cyclictest21713-21date12:10:001
7445996130,10cyclictest9-21ksoftirqd/008:40:190
7445996127,4cyclictest9-21ksoftirqd/008:15:240
7445996126,4cyclictest9-21ksoftirqd/010:40:220
744699601,25cyclictest8268-21interrupts09:25:181
744699600,23cyclictest2962-21cpuspeed_turbos09:15:131
7445996028,5cyclictest9-21ksoftirqd/010:15:000
7445996026,4cyclictest9-21ksoftirqd/010:35:150
7445996025,4cyclictest9-21ksoftirqd/012:00:160
7445996022,11cyclictest9-21ksoftirqd/009:30:160
7445996022,10cyclictest9-21ksoftirqd/010:05:140
7447995927,4cyclictest33-21ksoftirqd/209:00:262
7447995927,4cyclictest33-21ksoftirqd/208:00:262
744699590,24cyclictest24171-21/usr/sbin/munin12:15:161
744699590,22cyclictest10500-21smartctl09:30:151
7445995930,5cyclictest9-21ksoftirqd/007:46:440
7445995929,11cyclictest9-21ksoftirqd/009:00:230
7445995926,4cyclictest9-21ksoftirqd/010:45:130
7445995925,4cyclictest9-21ksoftirqd/010:00:180
7445995923,5cyclictest9-21ksoftirqd/011:30:200
7447995828,3cyclictest33-21ksoftirqd/210:55:272
7447995827,3cyclictest33-21ksoftirqd/210:15:272
744699580,27cyclictest19576-21sshd08:40:191
7445995828,5cyclictest9-21ksoftirqd/008:20:070
7445995824,9cyclictest9-21ksoftirqd/009:45:130
7445995823,4cyclictest9-21ksoftirqd/012:15:180
7447995730,7cyclictest33-21ksoftirqd/211:25:272
7447995728,7cyclictest33-21ksoftirqd/210:05:002
7447995727,3cyclictest33-21ksoftirqd/211:05:222
7447995721,6cyclictest33-21ksoftirqd/209:45:132
7447995719,9cyclictest33-21ksoftirqd/211:10:192
7447995718,10cyclictest33-21ksoftirqd/211:45:162
744699571,24cyclictest24590-21df07:45:141
744699570,28cyclictest23991-21taskset07:44:241
744699570,24cyclictest10886-21/usr/sbin/munin11:45:171
744699570,23cyclictest7181-21sshd11:38:131
744699570,22cyclictest8774-21/usr/sbin/munin07:10:231
7445995729,6cyclictest9-21ksoftirqd/011:15:160
7445995726,4cyclictest9-21ksoftirqd/008:30:190
7445995726,4cyclictest9-21ksoftirqd/008:30:190
7445995725,4cyclictest9-21ksoftirqd/007:35:150
7445995719,10cyclictest9-21ksoftirqd/010:15:180
7445995626,4cyclictest9-21ksoftirqd/008:45:210
7445995625,4cyclictest9-21ksoftirqd/007:25:260
7445995625,4cyclictest9-21ksoftirqd/007:15:010
7445995624,9cyclictest9-21ksoftirqd/011:45:120
7445995623,4cyclictest9-21ksoftirqd/011:25:140
7445995623,10cyclictest9-21ksoftirqd/008:35:200
7445995623,10cyclictest9-21ksoftirqd/007:15:180
7445995621,4cyclictest9-21ksoftirqd/008:00:140
7445995621,4cyclictest9-21ksoftirqd/007:50:250
7447995526,4cyclictest33-21ksoftirqd/208:15:282
7447995523,4cyclictest33-21ksoftirqd/211:15:212
7447995522,3cyclictest33-21ksoftirqd/210:30:202
744699550,23cyclictest15999-21dpkg08:35:001
7445995524,4cyclictest9-21ksoftirqd/011:10:140
7445995523,11cyclictest9-21ksoftirqd/008:05:190
7445995520,5cyclictest9-21ksoftirqd/007:55:230
7445995518,7cyclictest9-21ksoftirqd/012:12:350
139391550,1ptp4l401ktimersoftd/308:04:093
7447995426,7cyclictest33-21ksoftirqd/209:55:212
7447995426,4cyclictest33-21ksoftirqd/207:35:142
7447995424,3cyclictest33-21ksoftirqd/207:25:192
7447995423,6cyclictest33-21ksoftirqd/208:40:012
7447995423,4cyclictest33-21ksoftirqd/211:45:012
7447995423,4cyclictest33-21ksoftirqd/211:45:002
7447995423,4cyclictest33-21ksoftirqd/210:20:222
7447995422,4cyclictest33-21ksoftirqd/208:54:592
7447995418,5cyclictest33-21ksoftirqd/208:30:242
7447995418,5cyclictest33-21ksoftirqd/208:30:242
7447995418,4cyclictest33-21ksoftirqd/211:35:152
7447995416,7cyclictest33-21ksoftirqd/210:45:182
744699540,30cyclictest815-21fschecks_count11:25:161
744699540,30cyclictest784-21timerwakeupswit10:15:261
744699540,26cyclictest15358-21chrt08:30:391
744699540,26cyclictest15358-21chrt08:30:391
744699540,24cyclictest29013-21apt-get10:10:081
744699540,23cyclictest31366-21/usr/sbin/munin11:20:211
744699540,20cyclictest1589-21apt-get10:20:111
7445995427,6cyclictest9-21ksoftirqd/009:50:170
7445995420,9cyclictest9-21ksoftirqd/007:30:270
7445995420,4cyclictest9-21ksoftirqd/012:35:000
7445995420,4cyclictest9-21ksoftirqd/008:55:260
139391540,1ptp4l401ktimersoftd/310:50:183
7447995325,4cyclictest33-21ksoftirqd/210:35:152
7447995324,3cyclictest33-21ksoftirqd/208:40:262
744699531,22cyclictest1317-21runrttasks07:28:211
744699531,21cyclictest0-21swapper/112:20:011
7445995326,9cyclictest9-21ksoftirqd/011:05:110
7445995326,3cyclictest9-21ksoftirqd/009:05:260
7445995326,3cyclictest9-21ksoftirqd/009:05:260
7445995325,4cyclictest9-21ksoftirqd/007:45:000
7445995324,4cyclictest9-21ksoftirqd/012:05:140
7445995323,4cyclictest9-21ksoftirqd/009:15:170
7445995320,4cyclictest9-21ksoftirqd/008:50:120
158692530,3sleep215871-21strings09:40:202
139391530,1ptp4l401ktimersoftd/307:43:463
7447995224,4cyclictest33-21ksoftirqd/211:55:142
7447995222,7cyclictest33-21ksoftirqd/211:00:232
744699520,21cyclictest27150-21ls08:55:271
7445995236,3cyclictest9-21ksoftirqd/010:55:190
7445995222,9cyclictest9-21ksoftirqd/010:55:000
7445995222,9cyclictest9-21ksoftirqd/009:40:130
7445995222,4cyclictest9-21ksoftirqd/007:20:150
7447995119,3cyclictest33-21ksoftirqd/209:25:162
7447995118,3cyclictest33-21ksoftirqd/210:30:012
7447995114,5cyclictest33-21ksoftirqd/207:50:272
7447995113,6cyclictest33-21ksoftirqd/209:30:262
7447995112,5cyclictest33-21ksoftirqd/212:10:162
744699510,30cyclictest15208-21hwlatdetect11:55:181
744699510,21cyclictest9774-21ls10:35:201
744599518,3cyclictest9-21ksoftirqd/009:35:190
7447995023,6cyclictest33-21ksoftirqd/207:20:252
7447995016,6cyclictest33-21ksoftirqd/212:20:002
7447995012,6cyclictest33-21ksoftirqd/208:55:242
7447995011,5cyclictest33-21ksoftirqd/209:50:202
744699500,26cyclictest15770-21ls09:40:181
744599506,5cyclictest9-21ksoftirqd/011:50:240
7445995037,4cyclictest9-21ksoftirqd/011:00:270
7445995022,4cyclictest9-21ksoftirqd/010:25:250
7447994923,6cyclictest33-21ksoftirqd/212:05:202
7447994919,3cyclictest33-21ksoftirqd/207:30:182
7447994918,6cyclictest33-21ksoftirqd/208:10:162
7447994917,6cyclictest33-21ksoftirqd/212:00:182
7447994915,9cyclictest33-21ksoftirqd/209:35:272
7447994915,6cyclictest33-21ksoftirqd/207:40:222
7447994912,6cyclictest33-21ksoftirqd/212:30:152
7447994912,6cyclictest33-21ksoftirqd/212:30:142
744599495,10cyclictest9-21ksoftirqd/009:55:140
7445994931,9cyclictest9-21ksoftirqd/010:35:010
301092490,2sleep30-21swapper/310:10:183
7447994819,6cyclictest33-21ksoftirqd/211:30:192
7447994819,3cyclictest33-21ksoftirqd/207:15:342
7447994818,5cyclictest33-21ksoftirqd/211:51:572
7447994816,5cyclictest33-21ksoftirqd/208:45:172
7447994815,6cyclictest33-21ksoftirqd/208:25:162
7447994814,6cyclictest33-21ksoftirqd/208:20:242
744699480,30cyclictest29185-21seq12:25:021
744699480,24cyclictest21599-21latency_hist09:55:011
744599487,3cyclictest9-21ksoftirqd/008:10:260
744599486,3cyclictest9-21ksoftirqd/011:45:010
744599486,3cyclictest9-21ksoftirqd/011:45:000
744599486,3cyclictest9-21ksoftirqd/009:20:180
744599483,9cyclictest9-21ksoftirqd/011:35:200
7447994718,4cyclictest33-21ksoftirqd/209:15:012
744599473,4cyclictest9-21ksoftirqd/011:20:280
7447994614,7cyclictest33-21ksoftirqd/211:25:012
7447994613,6cyclictest33-21ksoftirqd/208:05:162
7447994611,6cyclictest33-21ksoftirqd/210:05:172
744599464,3cyclictest9-21ksoftirqd/009:25:150
744599462,3cyclictest9-21ksoftirqd/012:20:240
744599460,6cyclictest9-21ksoftirqd/009:10:230
744799455,5cyclictest33-21ksoftirqd/212:25:142
7447994512,6cyclictest33-21ksoftirqd/210:50:132
744699450,21cyclictest0-21swapper/108:45:271
744599454,7cyclictest9-21ksoftirqd/011:55:250
744599453,3cyclictest121rcu_preempt12:25:180
7445994526,9cyclictest9-21ksoftirqd/012:30:220
7447994424,3cyclictest33-21ksoftirqd/210:10:112
7447994418,6cyclictest33-21ksoftirqd/207:14:372
7447994415,7cyclictest33-21ksoftirqd/210:40:162
744699441,30cyclictest1317-21runrttasks07:24:321
744799435,7cyclictest33-21ksoftirqd/209:20:012
744799434,3cyclictest33-21ksoftirqd/212:20:222
7447994311,5cyclictest33-21ksoftirqd/209:05:162
7447994311,5cyclictest33-21ksoftirqd/209:05:162
744699430,30cyclictest1317-21runrttasks09:08:541
744699430,30cyclictest1317-21runrttasks09:08:541
744599432,7cyclictest9-21ksoftirqd/008:25:160
139391430,0ptp4l401ktimersoftd/309:30:233
744799421,3cyclictest33-21ksoftirqd/209:20:162
744699420,27cyclictest14670-21awk10:45:211
744799412,5cyclictest33-21ksoftirqd/207:49:592
744699410,25cyclictest27657-21chrt11:13:551
744699400,25cyclictest13148-21chrt08:27:421
7448993934,3cyclictest41-21ksoftirqd/311:20:363
744699390,25cyclictest20870-21chrt11:00:031
744699390,24cyclictest4912-21chrt11:34:321
7448993831,4cyclictest27748-21cron11:15:013
744699381,25cyclictest18493-21/usr/sbin/munin10:55:291
744699380,24cyclictest6105-21chrt08:13:541
139391380,15ptp4l401ktimersoftd/307:25:263
139391380,0ptp4l401ktimersoftd/310:05:183
744699370,23cyclictest20126-21if_enp4s007:35:171
7448993630,4cyclictest41-21ksoftirqd/309:01:513
57898360,2rtkit-daemon0-21swapper/308:50:143
134391360,1getstats0-21swapper/308:48:583
7448993529,4cyclictest41-21ksoftirqd/308:41:243
7448993529,4cyclictest41-21ksoftirqd/308:24:193
7448993529,4cyclictest41-21ksoftirqd/307:18:293
744699350,3cyclictest16475-21df_abs10:50:131
744699350,23cyclictest5048-21missed_timers10:25:211
139391350,0ptp4l401ktimersoftd/307:12:313
7448993429,3cyclictest41-21ksoftirqd/312:00:103
7448993429,3cyclictest41-21ksoftirqd/311:17:213
7448993429,3cyclictest41-21ksoftirqd/309:22:503
7448993428,4cyclictest41-21ksoftirqd/310:59:323
7448993428,4cyclictest41-21ksoftirqd/308:16:373
7448993428,4cyclictest41-21ksoftirqd/307:22:143
7448993427,5cyclictest41-21ksoftirqd/307:32:213
139391340,0ptp4l401ktimersoftd/309:55:213
7448993329,2cyclictest41-21ksoftirqd/311:53:163
7448993327,4cyclictest41-21ksoftirqd/312:37:373
7448993327,4cyclictest41-21ksoftirqd/312:23:213
7448993327,4cyclictest41-21ksoftirqd/311:37:313
7448993327,4cyclictest41-21ksoftirqd/309:18:033
7448993327,4cyclictest41-21ksoftirqd/307:53:473
7448993227,3cyclictest41-21ksoftirqd/312:25:123
7448993226,4cyclictest41-21ksoftirqd/311:45:303
7448993226,4cyclictest41-21ksoftirqd/310:03:133
7448993226,4cyclictest41-21ksoftirqd/308:59:263
7448993226,4cyclictest41-21ksoftirqd/308:25:073
7448993226,4cyclictest41-21ksoftirqd/308:11:443
7448993226,4cyclictest41-21ksoftirqd/308:08:023
7448993226,4cyclictest41-21ksoftirqd/307:38:553
7448993225,5cyclictest41-21ksoftirqd/311:30:053
7446993226,4cyclictest25-21ksoftirqd/107:56:061
7448993125,4cyclictest41-21ksoftirqd/312:15:423
7448993125,4cyclictest41-21ksoftirqd/311:28:053
7448993125,4cyclictest41-21ksoftirqd/310:46:453
7448993125,4cyclictest41-21ksoftirqd/310:18:323
7448993125,4cyclictest41-21ksoftirqd/309:43:023
139391310,0ptp4l401ktimersoftd/311:59:043
139391310,0ptp4l401ktimersoftd/310:24:023
7448993025,3cyclictest41-21ksoftirqd/312:14:463
7448993025,3cyclictest41-21ksoftirqd/310:40:233
7448993025,3cyclictest41-21ksoftirqd/310:33:133
7448993025,3cyclictest41-21ksoftirqd/307:49:033
7448993024,4cyclictest41-21ksoftirqd/311:44:253
7448993024,4cyclictest41-21ksoftirqd/311:44:253
7448993024,4cyclictest41-21ksoftirqd/308:39:073
7448993024,4cyclictest41-21ksoftirqd/308:33:063
7448993024,4cyclictest41-21ksoftirqd/308:33:063
139391300,0ptp4l401ktimersoftd/309:48:093
7448992924,3cyclictest41-21ksoftirqd/310:25:113
7448992923,4cyclictest41-21ksoftirqd/309:37:403
744699290,2cyclictest0-21swapper/109:10:121
139391290,0ptp4l401ktimersoftd/311:05:093
7448992823,3cyclictest41-21ksoftirqd/312:32:273
7448992823,3cyclictest41-21ksoftirqd/312:32:273
7448992823,3cyclictest41-21ksoftirqd/309:51:293
7448992822,4cyclictest41-21ksoftirqd/312:08:123
7448992722,3cyclictest41-21ksoftirqd/309:10:383
7448992721,4cyclictest41-21ksoftirqd/309:28:383
139391260,0ptp4l401ktimersoftd/310:35:273
7448992520,3cyclictest41-21ksoftirqd/309:05:123
7448992520,3cyclictest41-21ksoftirqd/309:05:123
139391240,0ptp4l401ktimersoftd/311:03:483
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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