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2025-12-18 - 12:32
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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 Thu Dec 18, 2025 00:45:45)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
156142205171,22sleep20-21swapper/219:07:312
155812204171,22sleep10-21swapper/119:07:071
138591204170,23phc2sys0-21swapper/319:07:003
155802195161,22sleep00-21swapper/019:07:050
1385918262,11phc2sys0-21swapper/319:10:013
224492720,10sleep11609699cyclictest22:35:261
219112670,5sleep01609599cyclictest23:40:200
79472610,3sleep20-21swapper/221:00:282
138491580,1ptp4l401ktimersoftd/320:15:253
138491570,1ptp4l401ktimersoftd/300:38:253
138491550,1ptp4l401ktimersoftd/321:15:473
84732510,1sleep10-21swapper/123:15:141
77222500,2sleep20-21swapper/222:05:262
258892490,2sleep00-21swapper/023:50:110
134991460,7getstats1609899cyclictest22:00:193
10002450,3sleep00-21swapper/019:45:000
16097994430,12cyclictest33-21ksoftirqd/222:40:102
16098994227,12cyclictest41-21ksoftirqd/321:40:003
16098994129,9cyclictest41-21ksoftirqd/319:15:123
16098994034,3cyclictest41-21ksoftirqd/319:35:003
16098994022,16cyclictest41-21ksoftirqd/300:20:003
16098993934,3cyclictest41-21ksoftirqd/321:25:003
50798380,5rtkit-daemon11972-21irqstats22:15:181
50798380,1rtkit-daemon0-21swapper/122:13:381
16098993834,2cyclictest41-21ksoftirqd/322:55:003
16098993834,2cyclictest41-21ksoftirqd/321:35:013
16098993827,9cyclictest41-21ksoftirqd/321:50:253
16098993827,10cyclictest41-21ksoftirqd/322:40:243
16097993830,6cyclictest33-21ksoftirqd/221:23:102
16098993733,2cyclictest41-21ksoftirqd/321:40:173
16098993733,2cyclictest41-21ksoftirqd/319:40:013
16098993732,3cyclictest41-21ksoftirqd/322:30:013
16098993730,5cyclictest41-21ksoftirqd/322:30:003
16098993730,3cyclictest41-21ksoftirqd/320:00:153
16098993726,9cyclictest41-21ksoftirqd/320:45:193
16098993725,9cyclictest41-21ksoftirqd/322:20:243
16097993732,3cyclictest33-21ksoftirqd/220:59:342
16097993730,5cyclictest33-21ksoftirqd/223:05:112
16096993732,3cyclictest25-21ksoftirqd/120:15:141
16096993731,4cyclictest25-21ksoftirqd/123:45:431
138491370,0ptp4l401ktimersoftd/323:50:033
138491370,0ptp4l401ktimersoftd/319:45:233
138491370,0ptp4l401ktimersoftd/319:45:223
138491370,0ptp4l401ktimersoftd/300:30:133
1609899365,4cyclictest41-21ksoftirqd/300:25:163
16098993632,3cyclictest41-21ksoftirqd/321:15:003
16098993632,3cyclictest41-21ksoftirqd/321:10:003
16098993630,4cyclictest41-21ksoftirqd/323:09:023
16098993630,4cyclictest41-21ksoftirqd/322:14:263
16098993630,4cyclictest41-21ksoftirqd/320:39:143
16097993630,4cyclictest33-21ksoftirqd/222:00:372
16096993630,4cyclictest25-21ksoftirqd/121:55:311
16096993630,4cyclictest25-21ksoftirqd/120:26:131
16095993630,4cyclictest9-21ksoftirqd/020:02:500
16095993630,4cyclictest9-21ksoftirqd/000:21:040
16098993531,2cyclictest41-21ksoftirqd/323:15:003
16098993530,3cyclictest41-21ksoftirqd/323:30:553
16098993530,3cyclictest41-21ksoftirqd/323:16:163
16098993530,3cyclictest41-21ksoftirqd/322:58:553
16098993530,3cyclictest41-21ksoftirqd/321:25:183
16098993530,3cyclictest41-21ksoftirqd/320:55:183
16098993530,3cyclictest41-21ksoftirqd/319:50:133
16098993529,3cyclictest41-21ksoftirqd/319:20:183
16097993529,4cyclictest33-21ksoftirqd/222:22:512
16097993529,4cyclictest33-21ksoftirqd/220:11:332
16097993513,19cyclictest33-21ksoftirqd/220:02:082
16096993529,4cyclictest25-21ksoftirqd/121:21:491
16095993529,4cyclictest9-21ksoftirqd/022:30:410
16095993529,4cyclictest9-21ksoftirqd/020:51:430
16095993529,4cyclictest9-21ksoftirqd/020:09:550
16095993529,4cyclictest9-21ksoftirqd/019:31:570
16098993430,3cyclictest41-21ksoftirqd/323:40:003
16098993430,2cyclictest41-21ksoftirqd/322:35:273
16098993429,3cyclictest41-21ksoftirqd/322:15:123
16098993429,3cyclictest41-21ksoftirqd/321:45:103
16098993429,3cyclictest41-21ksoftirqd/320:44:593
16098993429,3cyclictest41-21ksoftirqd/320:10:173
16098993429,3cyclictest41-21ksoftirqd/300:10:193
16098993429,3cyclictest41-21ksoftirqd/300:00:133
16098993428,4cyclictest41-21ksoftirqd/323:24:513
16098993428,4cyclictest41-21ksoftirqd/321:03:173
16098993428,4cyclictest41-21ksoftirqd/320:27:393
16098993428,4cyclictest41-21ksoftirqd/319:56:303
16098993428,4cyclictest41-21ksoftirqd/300:22:553
1609899341,3cyclictest121rcu_preempt20:07:173
16097993429,3cyclictest33-21ksoftirqd/221:25:242
16097993429,3cyclictest33-21ksoftirqd/219:31:312
16097993429,3cyclictest33-21ksoftirqd/219:10:072
16097993428,4cyclictest33-21ksoftirqd/223:37:452
16097993428,4cyclictest33-21ksoftirqd/223:15:112
16097993428,4cyclictest33-21ksoftirqd/222:34:152
16097993428,4cyclictest33-21ksoftirqd/222:16:142
16097993428,4cyclictest33-21ksoftirqd/221:41:442
16097993428,4cyclictest33-21ksoftirqd/220:42:582
16097993428,4cyclictest33-21ksoftirqd/200:03:492
16097993426,6cyclictest33-21ksoftirqd/223:24:552
16096993428,4cyclictest25-21ksoftirqd/123:33:581
16096993428,4cyclictest25-21ksoftirqd/121:00:361
16096993428,4cyclictest25-21ksoftirqd/120:31:061
16096993428,4cyclictest25-21ksoftirqd/120:22:401
16096993428,4cyclictest25-21ksoftirqd/100:21:291
16096993427,5cyclictest25-21ksoftirqd/100:11:021
16095993429,3cyclictest9-21ksoftirqd/021:05:150
16095993429,3cyclictest9-21ksoftirqd/020:35:130
16095993429,3cyclictest9-21ksoftirqd/020:31:260
16095993429,3cyclictest9-21ksoftirqd/000:13:300
16095993428,4cyclictest9-21ksoftirqd/023:37:590
16095993428,4cyclictest9-21ksoftirqd/022:53:140
16095993428,4cyclictest9-21ksoftirqd/022:22:490
16095993428,4cyclictest9-21ksoftirqd/019:29:560
16095993428,4cyclictest9-21ksoftirqd/000:35:480
16095993427,5cyclictest9-21ksoftirqd/021:34:150
138491340,12ptp4l0-21swapper/320:34:023
16098993330,2cyclictest41-21ksoftirqd/300:10:003
16098993329,2cyclictest41-21ksoftirqd/323:45:123
16098993328,3cyclictest41-21ksoftirqd/322:45:213
16098993327,3cyclictest41-21ksoftirqd/320:25:013
16097993329,3cyclictest33-21ksoftirqd/221:06:102
16097993328,3cyclictest33-21ksoftirqd/223:45:002
16097993327,4cyclictest33-21ksoftirqd/223:34:082
16097993327,4cyclictest33-21ksoftirqd/223:26:342
16097993327,4cyclictest33-21ksoftirqd/222:12:002
16097993327,4cyclictest33-21ksoftirqd/221:34:492
16097993327,4cyclictest33-21ksoftirqd/219:45:342
16097993327,4cyclictest33-21ksoftirqd/219:45:342
16097993327,4cyclictest33-21ksoftirqd/200:38:072
16097993314,16cyclictest33-21ksoftirqd/200:20:102
16097993311,19cyclictest14224-21sh00:30:182
16096993328,3cyclictest25-21ksoftirqd/119:26:191
16096993328,3cyclictest25-21ksoftirqd/100:19:031
16096993327,4cyclictest25-21ksoftirqd/123:40:531
16096993327,4cyclictest25-21ksoftirqd/122:59:571
16096993327,4cyclictest25-21ksoftirqd/122:42:481
16096993327,4cyclictest25-21ksoftirqd/120:35:111
16096993327,4cyclictest25-21ksoftirqd/120:14:581
16096993327,4cyclictest25-21ksoftirqd/119:51:431
16096993327,4cyclictest25-21ksoftirqd/119:33:091
16095993328,3cyclictest9-21ksoftirqd/021:57:140
16095993328,3cyclictest9-21ksoftirqd/021:36:200
16095993327,4cyclictest9-21ksoftirqd/023:55:120
16095993327,4cyclictest9-21ksoftirqd/023:26:330
16095993327,4cyclictest9-21ksoftirqd/022:00:350
16095993327,4cyclictest9-21ksoftirqd/021:41:370
16095993327,4cyclictest9-21ksoftirqd/020:21:580
16095993327,4cyclictest9-21ksoftirqd/020:11:310
16095993326,5cyclictest9-21ksoftirqd/019:48:370
16095993326,5cyclictest9-21ksoftirqd/019:48:370
16098993229,2cyclictest41-21ksoftirqd/321:55:113
16098993229,2cyclictest41-21ksoftirqd/319:40:143
16098993227,3cyclictest41-21ksoftirqd/300:00:013
16098993226,4cyclictest41-21ksoftirqd/323:03:483
16097993227,3cyclictest33-21ksoftirqd/222:53:242
16097993227,3cyclictest33-21ksoftirqd/219:17:432
16097993226,4cyclictest33-21ksoftirqd/223:58:592
16097993226,4cyclictest33-21ksoftirqd/222:37:202
16097993226,4cyclictest33-21ksoftirqd/220:54:062
16097993226,4cyclictest33-21ksoftirqd/219:57:502
1609799321,6cyclictest35792irq/125-enp1s0-21:35:112
16097993212,18cyclictest2380-21sort23:00:262
16097993211,19cyclictest32595-21sshd22:55:462
16097993211,18cyclictest3177-21latency_hist22:00:002
16097993211,18cyclictest18519-21/usr/sbin/munin20:20:232
16096993226,4cyclictest25-21ksoftirqd/123:20:351
16096993226,4cyclictest25-21ksoftirqd/122:06:191
16096993226,4cyclictest25-21ksoftirqd/121:47:001
16096993226,4cyclictest25-21ksoftirqd/121:43:151
16096993226,4cyclictest25-21ksoftirqd/121:31:291
16096993226,4cyclictest25-21ksoftirqd/121:10:171
16096993226,4cyclictest25-21ksoftirqd/119:23:341
16096993226,4cyclictest25-21ksoftirqd/119:11:441
16096993226,4cyclictest25-21ksoftirqd/100:32:041
16095993226,4cyclictest9-21ksoftirqd/023:45:300
16095993226,4cyclictest9-21ksoftirqd/023:33:020
16095993226,4cyclictest9-21ksoftirqd/021:27:290
16095993225,5cyclictest9-21ksoftirqd/000:07:560
16098993127,2cyclictest41-21ksoftirqd/323:40:133
16098993126,3cyclictest41-21ksoftirqd/322:05:143
16098993125,4cyclictest41-21ksoftirqd/319:27:213
1609799317,4cyclictest13169-21sshd00:29:012
16097993126,3cyclictest33-21ksoftirqd/222:28:082
16097993125,4cyclictest33-21ksoftirqd/220:35:052
16097993125,4cyclictest33-21ksoftirqd/220:28:022
16096993126,4cyclictest25-21ksoftirqd/123:12:101
16096993126,3cyclictest25-21ksoftirqd/119:45:111
16096993126,3cyclictest25-21ksoftirqd/119:45:111
16096993125,4cyclictest25-21ksoftirqd/121:35:411
16096993125,4cyclictest25-21ksoftirqd/120:47:161
16095993126,3cyclictest9-21ksoftirqd/022:48:340
16095993126,3cyclictest9-21ksoftirqd/022:36:580
16095993126,3cyclictest9-21ksoftirqd/022:25:550
16095993126,3cyclictest9-21ksoftirqd/021:19:240
16095993126,3cyclictest9-21ksoftirqd/019:21:260
16095993126,3cyclictest9-21ksoftirqd/019:18:320
16095993126,3cyclictest9-21ksoftirqd/000:30:120
16095993125,4cyclictest9-21ksoftirqd/023:22:240
16095993125,4cyclictest9-21ksoftirqd/023:08:190
16095993125,4cyclictest9-21ksoftirqd/019:10:460
16095993125,4cyclictest9-21ksoftirqd/000:17:510
16095993124,4cyclictest9-21ksoftirqd/022:05:160
138491310,0ptp4l401ktimersoftd/320:53:583
16098993027,2cyclictest41-21ksoftirqd/323:25:123
1609799309,18cyclictest1202-21expr00:05:152
1609799308,3cyclictest21786-21iostat19:20:182
1609799308,3cyclictest12428-21processes21:10:242
16097993025,3cyclictest33-21ksoftirqd/223:14:552
16097993024,4cyclictest33-21ksoftirqd/219:29:502
16097993024,4cyclictest33-21ksoftirqd/200:17:512
16097993010,18cyclictest4942-21phc2sys-jitter00:10:232
16096993025,3cyclictest25-21ksoftirqd/123:38:121
16096993025,3cyclictest25-21ksoftirqd/100:07:261
16096993024,4cyclictest25-21ksoftirqd/122:31:571
16096993024,4cyclictest25-21ksoftirqd/119:37:471
1609699300,2cyclictest0-21swapper/100:35:231
16095993025,3cyclictest9-21ksoftirqd/023:18:220
16095993025,3cyclictest9-21ksoftirqd/021:11:090
16095993025,3cyclictest9-21ksoftirqd/020:45:090
16095993024,4cyclictest9-21ksoftirqd/022:13:310
16095993024,4cyclictest9-21ksoftirqd/020:41:450
16095993024,4cyclictest9-21ksoftirqd/020:17:170
16095993023,5cyclictest9-21ksoftirqd/022:16:480
1609799296,4cyclictest0-21swapper/220:05:192
1609799293,5cyclictest24168-21irqrtprio20:30:182
16097992924,3cyclictest33-21ksoftirqd/223:52:082
16097992924,3cyclictest33-21ksoftirqd/223:45:302
16097992922,4cyclictest33-21ksoftirqd/220:17:582
1609799290,4cyclictest1319-21snmpd19:54:232
16096992924,3cyclictest25-21ksoftirqd/122:28:491
16096992924,3cyclictest25-21ksoftirqd/121:07:271
16096992924,3cyclictest25-21ksoftirqd/100:25:111
16096992923,4cyclictest25-21ksoftirqd/123:29:101
16096992923,4cyclictest25-21ksoftirqd/122:53:561
16096992923,4cyclictest25-21ksoftirqd/121:52:021
16096992923,4cyclictest25-21ksoftirqd/121:29:351
16096992923,4cyclictest25-21ksoftirqd/119:16:521
16095992924,3cyclictest9-21ksoftirqd/023:15:000
16095992924,3cyclictest9-21ksoftirqd/021:48:530
16095992924,3cyclictest9-21ksoftirqd/019:39:280
16095992923,4cyclictest9-21ksoftirqd/022:57:320
16095992923,4cyclictest9-21ksoftirqd/021:24:490
16097992823,3cyclictest33-21ksoftirqd/219:40:042
16096992823,3cyclictest25-21ksoftirqd/100:00:091
16096992822,4cyclictest25-21ksoftirqd/123:59:191
16096992822,4cyclictest25-21ksoftirqd/122:24:311
16096992822,4cyclictest25-21ksoftirqd/120:05:271
16095992823,3cyclictest9-21ksoftirqd/020:55:250
16095992822,4cyclictest9-21ksoftirqd/000:27:180
1609799277,3cyclictest30824-21apt20:45:112
1609799276,3cyclictest13509-21sshd21:15:112
16097992722,3cyclictest33-21ksoftirqd/221:54:442
16096992721,4cyclictest25-21ksoftirqd/122:03:411
16096992721,4cyclictest25-21ksoftirqd/120:55:251
1609799266,3cyclictest0-21swapper/222:50:002
1609799260,9cyclictest28273-21/usr/sbin/munin21:45:152
16096992621,3cyclictest25-21ksoftirqd/121:15:101
16096992621,3cyclictest25-21ksoftirqd/119:58:331
16096992620,4cyclictest25-21ksoftirqd/123:01:021
16096992620,4cyclictest25-21ksoftirqd/119:41:371
16095992621,3cyclictest9-21ksoftirqd/023:01:370
16095992621,3cyclictest9-21ksoftirqd/022:43:230
16095992619,5cyclictest9-21ksoftirqd/019:54:270
16096992520,3cyclictest25-21ksoftirqd/123:50:091
16096992519,4cyclictest25-21ksoftirqd/120:01:171
16095992520,3cyclictest9-21ksoftirqd/021:01:280
16095992520,3cyclictest9-21ksoftirqd/000:00:150
16095992519,4cyclictest9-21ksoftirqd/021:54:460
16095992519,4cyclictest9-21ksoftirqd/019:58:530
1609799242,4cyclictest2315-21gnome-shell19:37:582
16096992419,3cyclictest25-21ksoftirqd/123:06:031
16096992419,3cyclictest25-21ksoftirqd/120:50:121
16096992218,2cyclictest25-21ksoftirqd/122:47:471
16096992217,3cyclictest25-21ksoftirqd/120:43:571
16095991813,3cyclictest9-21ksoftirqd/020:26:360
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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