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2026-04-18 - 03:16
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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 376 highest latencies:
System rackdslot1.osadl.org (updated Sat Apr 18, 2026 00:45:37)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
514899730,31cyclictest31417-21cat22:25:002
514799711,68cyclictest22266-21kworker/1:119:48:481
514899700,27cyclictest32612-1kworker/2:1H19:20:002
130492680,5sleep20-21swapper/220:35:182
5146996325,4cyclictest9-21ksoftirqd/023:00:240
41272620,3sleep20-21swapper/219:05:232
229272620,4sleep30-21swapper/323:15:123
229272620,4sleep30-21swapper/323:15:123
5146996157,2cyclictest111rcuc/021:10:240
5146996131,5cyclictest9-21ksoftirqd/019:10:180
215482610,3sleep00-21swapper/000:20:200
514899590,26cyclictest20379-21wc20:50:182
514799591,55cyclictest22266-21kworker/1:119:50:481
134491570,3ptp4l0-21swapper/219:35:062
134491570,3ptp4l0-21swapper/022:25:160
134491560,4ptp4l0-21swapper/100:37:431
134491560,3ptp4l0-21swapper/323:24:413
134491560,3ptp4l0-21swapper/122:00:101
134491560,16ptp4l0-21swapper/100:15:001
514699553,6cyclictest9-21ksoftirqd/021:45:270
5146995526,7cyclictest9-21ksoftirqd/023:55:170
134491550,3ptp4l0-21swapper/319:28:003
134491550,3ptp4l0-21swapper/022:20:000
134491550,12ptp4l0-21swapper/120:22:361
5146995420,5cyclictest9-21ksoftirqd/021:55:200
514699540,14cyclictest0-21swapper/020:10:090
134491540,4ptp4l0-21swapper/023:31:320
134491540,3ptp4l0-21swapper/121:34:381
514699536,5cyclictest30320-21apt-get20:05:000
514699535,8cyclictest9-21ksoftirqd/019:50:000
514699530,6cyclictest134491ptp4l22:45:280
134491530,3ptp4l0-21swapper/122:58:261
134491530,2ptp4l0-21swapper/123:49:171
125142530,5sleep2514899cyclictest21:43:212
514699525,5cyclictest9-21ksoftirqd/023:25:120
514699523,6cyclictest9-21ksoftirqd/000:25:180
134491520,4ptp4l0-21swapper/022:33:230
134491520,3ptp4l0-21swapper/123:43:021
514699514,4cyclictest9-21ksoftirqd/023:35:250
514699513,6cyclictest9-21ksoftirqd/019:35:130
514699512,6cyclictest9-21ksoftirqd/022:05:180
514699512,13cyclictest0-21swapper/019:18:210
134491510,6ptp4l0-21swapper/319:05:073
134491510,4ptp4l0-21swapper/022:40:300
134491510,11ptp4l0-21swapper/123:35:241
514699505,5cyclictest9-21ksoftirqd/022:15:150
514699505,4cyclictest9-21ksoftirqd/020:35:190
514699504,5cyclictest9-21ksoftirqd/022:15:000
514699504,3cyclictest121rcu_preempt23:20:250
514699503,7cyclictest0-21swapper/023:42:590
514699503,7cyclictest0-21swapper/022:38:580
514699503,6cyclictest9-21ksoftirqd/019:55:130
514699503,5cyclictest9-21ksoftirqd/000:40:000
134491500,3ptp4l0-21swapper/000:00:470
514799490,46cyclictest25666-21kworker/1:222:10:291
514699496,7cyclictest9-21ksoftirqd/021:35:280
514699496,10cyclictest9-21ksoftirqd/021:30:250
514699495,5cyclictest9-21ksoftirqd/020:25:130
514699495,5cyclictest9-21ksoftirqd/000:10:230
514699493,7cyclictest9-21ksoftirqd/020:15:220
514699493,7cyclictest9-21ksoftirqd/000:10:000
514699493,6cyclictest0-21swapper/021:50:230
514699493,5cyclictest9-21ksoftirqd/021:20:260
514699492,6cyclictest9-21ksoftirqd/019:40:250
5146994921,5cyclictest9-21ksoftirqd/022:00:230
5146994921,2cyclictest9-21ksoftirqd/020:30:350
5146994917,4cyclictest9-21ksoftirqd/020:49:230
134491490,5ptp4l0-21swapper/119:09:251
116852490,3sleep111691-21timerandwakeup20:30:271
514899480,21cyclictest27240-21df_abs22:15:142
514699485,6cyclictest9-21ksoftirqd/023:15:000
514699485,6cyclictest9-21ksoftirqd/022:50:120
514699484,8cyclictest9-21ksoftirqd/023:50:130
514699484,5cyclictest9-21ksoftirqd/021:40:170
514699483,6cyclictest9-21ksoftirqd/019:50:270
514699483,5cyclictest9-21ksoftirqd/023:15:120
514699483,5cyclictest9-21ksoftirqd/023:15:120
514699483,5cyclictest9-21ksoftirqd/020:50:240
514699483,5cyclictest9-21ksoftirqd/020:05:270
514699482,5cyclictest9-21ksoftirqd/022:55:200
514699480,6cyclictest9-21ksoftirqd/020:20:120
514699480,6cyclictest9-21ksoftirqd/019:30:240
514699480,5cyclictest9-21ksoftirqd/020:40:170
134491480,4ptp4l0-21swapper/122:34:351
92322470,2sleep30-21swapper/323:55:163
514899470,23cyclictest12839-21taskset22:52:212
5147994718,27cyclictest0-21swapper/123:55:191
514699475,5cyclictest9-21ksoftirqd/000:30:190
514699473,6cyclictest9-21ksoftirqd/023:45:150
514699473,5cyclictest9-21ksoftirqd/021:15:280
134491470,2ptp4l22148-21apt-get22:05:121
134491470,2ptp4l0-21swapper/123:01:081
514699464,9cyclictest9-21ksoftirqd/021:00:140
514699464,7cyclictest9-21ksoftirqd/020:55:170
514699462,6cyclictest9-21ksoftirqd/019:20:220
514699460,5cyclictest9-21ksoftirqd/019:25:270
514899455,17cyclictest0-21swapper/220:35:012
514699454,8cyclictest9-21ksoftirqd/021:05:260
134491450,4ptp4l0-21swapper/223:56:132
134491450,4ptp4l0-21swapper/122:17:141
134491450,4ptp4l0-21swapper/100:26:111
134491450,3ptp4l0-21swapper/120:57:231
134491450,3ptp4l0-21swapper/023:09:110
514899440,24cyclictest20641-21irqrtprio22:00:162
514699444,6cyclictest9-21ksoftirqd/021:25:240
514699444,4cyclictest134491ptp4l00:15:140
134491440,3ptp4l0-21swapper/219:27:592
134491440,3ptp4l0-21swapper/121:05:491
134491440,3ptp4l0-21swapper/119:42:201
514899430,22cyclictest15276-21taskset22:59:112
514799432,2cyclictest0-21swapper/121:55:191
5147994311,30cyclictest2010-21kworker/1:000:05:391
134491430,8ptp4l0-21swapper/219:21:462
134491430,5ptp4l0-21swapper/119:23:491
134491430,4ptp4l0-21swapper/200:35:262
134491430,4ptp4l0-21swapper/122:45:181
514899422,21cyclictest0-21swapper/200:00:132
514899421,24cyclictest1627-21/usr/sbin/munin20:10:212
134491420,5ptp4l4702-21users20:15:271
134491420,5ptp4l0-21swapper/321:05:223
134491420,5ptp4l0-21swapper/223:10:122
134491420,5ptp4l0-21swapper/220:05:042
134491420,4ptp4l6355-21apt-get22:40:121
134491420,4ptp4l6310-21memory20:20:222
134491420,4ptp4l3417-21apt-get21:25:121
134491420,4ptp4l28974-21ls00:35:273
134491420,4ptp4l25038-21apt-get23:20:121
134491420,4ptp4l15804-21iostat_ios21:50:181
134491420,4ptp4l14833-21apt-get20:40:121
134491420,3ptp4l2318-21gnome-shell22:20:581
5149994136,3cyclictest41-21ksoftirqd/300:20:013
514899412,21cyclictest0-21swapper/220:15:192
134491410,8ptp4l0-21swapper/223:34:432
134491410,8ptp4l0-21swapper/123:14:361
134491410,5ptp4l4493-21/usr/sbin/munin21:25:212
134491410,5ptp4l0-21swapper/320:05:203
134491410,5ptp4l0-21swapper/219:40:102
134491410,5ptp4l0-21swapper/119:10:121
134491410,4ptp4l28829-21iostat20:00:171
134491410,4ptp4l2318-21gnome-shell21:45:582
134491410,4ptp4l16951-21df19:35:131
134491410,4ptp4l15388-21meminfo19:30:191
134491410,4ptp4l12715-21iostat_ios19:25:181
134491410,3ptp4l31567-21apt-get22:25:121
134491410,3ptp4l2318-21gnome-shell20:10:581
134491410,3ptp4l13465-21memory20:35:201
134491410,3ptp4l0-21swapper/123:33:211
134491410,2ptp4l4031-21apt-get22:35:121
134491400,8ptp4l0-21swapper/221:22:452
134491400,8ptp4l0-21swapper/221:05:012
134491400,5ptp4l9510-21which21:35:252
134491400,5ptp4l32121-21python20:05:241
134491400,5ptp4l15659-21hddtemp_smartct21:50:162
134491400,5ptp4l0-21swapper/320:50:113
134491400,5ptp4l0-21swapper/320:40:213
134491400,5ptp4l0-21swapper/219:47:522
134491400,5ptp4l0-21swapper/100:33:241
134491400,4ptp4l26964-21chrt00:31:513
134491400,4ptp4l26513-21iostat19:55:171
134491400,4ptp4l23145-21hddtemp_smartct23:15:151
134491400,4ptp4l23145-21hddtemp_smartct23:15:151
134491400,4ptp4l19215-21awk20:49:591
134491400,4ptp4l0-21swapper/321:50:273
134491400,4ptp4l0-21swapper/321:40:163
134491400,4ptp4l0-21swapper/321:35:153
134491400,4ptp4l0-21swapper/223:25:212
134491400,4ptp4l0-21swapper/223:00:312
134491400,4ptp4l0-21swapper/221:11:222
134491400,4ptp4l0-21swapper/220:02:092
134491400,4ptp4l0-21swapper/219:50:002
134491400,4ptp4l0-21swapper/200:31:292
134491400,4ptp4l0-21swapper/100:00:201
134491400,3ptp4l9321-21users20:25:261
134491400,3ptp4l6503-21apt-get23:50:111
134491400,3ptp4l13741-21irqstats21:45:181
134491400,2ptp4l8974-21ls19:15:261
514899390,36cyclictest23765-21cron21:00:002
134491390,5ptp4l19418-21apt20:50:081
134491390,5ptp4l0-21swapper/019:08:420
134491390,4ptp4l0-21swapper/323:54:323
134491390,4ptp4l0-21swapper/323:35:573
134491390,4ptp4l0-21swapper/323:08:273
134491390,4ptp4l0-21swapper/322:56:453
134491390,4ptp4l0-21swapper/322:33:583
134491390,4ptp4l0-21swapper/321:45:103
134491390,4ptp4l0-21swapper/321:29:183
134491390,4ptp4l0-21swapper/321:20:143
134491390,4ptp4l0-21swapper/321:10:253
134491390,4ptp4l0-21swapper/320:58:253
134491390,4ptp4l0-21swapper/320:45:183
134491390,4ptp4l0-21swapper/319:35:263
134491390,4ptp4l0-21swapper/300:27:553
134491390,4ptp4l0-21swapper/223:50:412
134491390,4ptp4l0-21swapper/223:37:532
134491390,4ptp4l0-21swapper/223:16:452
134491390,4ptp4l0-21swapper/223:16:452
134491390,4ptp4l0-21swapper/222:31:592
134491390,4ptp4l0-21swapper/222:13:582
134491390,4ptp4l0-21swapper/221:31:392
134491390,4ptp4l0-21swapper/221:16:202
134491390,4ptp4l0-21swapper/220:45:442
134491390,4ptp4l0-21swapper/220:40:432
134491390,4ptp4l0-21swapper/219:55:472
134491390,4ptp4l0-21swapper/219:33:152
134491390,4ptp4l0-21swapper/219:10:372
134491390,4ptp4l0-21swapper/200:22:172
134491390,4ptp4l0-21swapper/200:05:462
134491390,4ptp4l0-21swapper/123:25:421
134491390,4ptp4l0-21swapper/123:05:251
134491390,4ptp4l0-21swapper/122:50:191
134491390,4ptp4l0-21swapper/121:41:391
134491390,4ptp4l0-21swapper/121:20:571
134491390,4ptp4l0-21swapper/121:15:201
134491390,4ptp4l0-21swapper/100:20:191
134491390,4ptp4l0-21swapper/100:15:211
134491390,3ptp4l25230-21/usr/sbin/munin21:00:231
134491390,3ptp4l25055-21ls21:00:203
134491390,3ptp4l0-21swapper/223:24:132
134491390,3ptp4l0-21swapper/222:45:172
134491390,3ptp4l0-21swapper/200:16:032
5149993832,4cyclictest41-21ksoftirqd/320:13:113
5149993831,5cyclictest41-21ksoftirqd/323:03:213
514999380,3cyclictest137891phc2sys20:35:153
134491380,5ptp4l0-21swapper/322:50:393
134491380,5ptp4l0-21swapper/320:20:133
134491380,4ptp4l0-21swapper/323:25:113
134491380,4ptp4l0-21swapper/322:21:583
134491380,4ptp4l0-21swapper/322:08:503
134491380,4ptp4l0-21swapper/321:55:203
134491380,4ptp4l0-21swapper/321:31:063
134491380,4ptp4l0-21swapper/319:59:293
134491380,4ptp4l0-21swapper/319:50:233
134491380,4ptp4l0-21swapper/319:21:533
134491380,4ptp4l0-21swapper/300:01:023
134491380,4ptp4l0-21swapper/223:45:212
134491380,4ptp4l0-21swapper/223:44:042
134491380,4ptp4l0-21swapper/222:41:422
134491380,4ptp4l0-21swapper/222:36:392
134491380,4ptp4l0-21swapper/222:28:272
134491380,4ptp4l0-21swapper/222:08:522
134491380,4ptp4l0-21swapper/221:56:322
134491380,4ptp4l0-21swapper/220:25:522
134491380,4ptp4l0-21swapper/200:26:002
134491380,4ptp4l0-21swapper/200:14:552
134491380,4ptp4l0-21swapper/121:10:191
134491380,3ptp4l7772-21apt-get21:35:011
134491380,3ptp4l0-21swapper/321:15:163
134491380,3ptp4l0-21swapper/221:00:552
5149993731,4cyclictest41-21ksoftirqd/322:10:463
134491370,4ptp4l0-21swapper/323:11:413
134491370,4ptp4l0-21swapper/322:37:213
134491370,4ptp4l0-21swapper/322:16:143
134491370,4ptp4l0-21swapper/320:27:483
134491370,4ptp4l0-21swapper/320:16:233
134491370,4ptp4l0-21swapper/320:04:533
134491370,4ptp4l0-21swapper/319:48:523
134491370,4ptp4l0-21swapper/319:10:013
134491370,4ptp4l0-21swapper/300:21:403
134491370,4ptp4l0-21swapper/223:07:242
134491370,3ptp4l0-21swapper/323:45:233
134491370,3ptp4l0-21swapper/322:40:463
134491370,3ptp4l0-21swapper/319:42:023
134491360,4ptp4l0-21swapper/323:31:133
134491360,4ptp4l0-21swapper/322:01:363
134491360,4ptp4l0-21swapper/320:31:583
134491360,4ptp4l0-21swapper/300:13:033
134491360,3ptp4l0-21swapper/319:30:163
134491350,4ptp4l0-21swapper/323:40:073
134491350,4ptp4l0-21swapper/322:46:363
134491340,3ptp4l0-21swapper/319:17:083
514999328,20cyclictest32052-21if_enp1s022:25:163
514999302,23cyclictest13470-21apt-get00:05:123
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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