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2026-07-15 - 11:27
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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 rackdslot3.osadl.org (updated Wed Jul 15, 2026 00:45:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
18752213168,33sleep30-21swapper/319:09:333
15932206173,22sleep20-21swapper/219:05:552
18002205172,22sleep00-21swapper/019:08:340
18012204171,22sleep10-21swapper/119:08:351
19102163125,13sleep20-21swapper/219:10:012
2241421580,6sleep3221299cyclictest22:05:283
220999640,4cyclictest26666-21cut00:30:130
142682610,1sleep00-21swapper/022:55:270
1394915538,10phc2sys0-21swapper/319:10:023
139391550,1ptp4l401ktimersoftd/322:56:503
139391550,1ptp4l401ktimersoftd/321:20:143
139391520,0ptp4l401ktimersoftd/320:03:103
2211994843,3cyclictest21030-21ls19:50:002
139391480,1ptp4l401ktimersoftd/323:22:073
139391480,1ptp4l401ktimersoftd/323:22:073
139391450,1ptp4l401ktimersoftd/321:46:263
2210994438,3cyclictest25-21ksoftirqd/122:00:001
2209994438,4cyclictest16569-21sh00:10:000
2210994238,2cyclictest25-21ksoftirqd/120:40:001
139391420,0ptp4l401ktimersoftd/322:10:183
139391420,0ptp4l401ktimersoftd/319:50:133
2210994135,3cyclictest25-21ksoftirqd/121:40:011
2209994135,4cyclictest26884-21awk23:25:000
2209994135,4cyclictest26884-21awk23:25:000
2212994029,9cyclictest41-21ksoftirqd/323:40:003
2210994035,3cyclictest25-21ksoftirqd/120:20:001
2210994035,3cyclictest25-21ksoftirqd/119:50:001
2210994035,3cyclictest25-21ksoftirqd/119:40:001
2209994034,4cyclictest9-21ksoftirqd/019:20:000
2210993934,3cyclictest25-21ksoftirqd/122:45:001
2210993934,3cyclictest23382-21cron19:55:001
2212993831,5cyclictest41-21ksoftirqd/300:25:003
2210993834,2cyclictest25-21ksoftirqd/123:35:011
2210993833,3cyclictest25-21ksoftirqd/123:30:011
2210993833,3cyclictest25-21ksoftirqd/119:20:011
2210993833,2cyclictest25-21ksoftirqd/100:24:591
2210993832,4cyclictest25-21ksoftirqd/121:24:301
2209993833,3cyclictest9-21ksoftirqd/019:24:590
2209993831,4cyclictest18637-21wc22:00:130
57898370,2rtkit-daemon0-21swapper/020:39:080
2212993732,3cyclictest41-21ksoftirqd/323:19:593
2212993732,2cyclictest41-21ksoftirqd/319:24:593
2212993731,4cyclictest41-21ksoftirqd/321:18:183
2212993731,3cyclictest41-21ksoftirqd/321:55:003
2210993734,2cyclictest25-21ksoftirqd/123:10:011
2210993733,2cyclictest25-21ksoftirqd/100:14:591
2210993732,3cyclictest25-21ksoftirqd/123:19:591
2210993732,3cyclictest25-21ksoftirqd/120:00:461
2210993731,4cyclictest25-21ksoftirqd/121:42:311
2209993730,4cyclictest9-21ksoftirqd/020:20:490
2212993632,3cyclictest41-21ksoftirqd/320:40:013
2212993632,3cyclictest41-21ksoftirqd/319:40:003
2212993632,2cyclictest41-21ksoftirqd/320:24:593
2212993630,4cyclictest41-21ksoftirqd/321:34:353
2212993629,4cyclictest26287-21sh00:30:013
2211993630,4cyclictest33-21ksoftirqd/223:15:552
2210993632,2cyclictest25-21ksoftirqd/123:25:011
2210993632,2cyclictest25-21ksoftirqd/123:25:011
2210993632,2cyclictest25-21ksoftirqd/120:10:011
2210993631,3cyclictest25-21ksoftirqd/119:55:201
2210993631,2cyclictest25-21ksoftirqd/121:45:201
2210993630,4cyclictest25-21ksoftirqd/123:47:111
2210993630,4cyclictest25-21ksoftirqd/122:55:191
2210993630,4cyclictest25-21ksoftirqd/122:12:361
2210993630,4cyclictest25-21ksoftirqd/100:33:131
2210993630,4cyclictest25-21ksoftirqd/100:04:561
2210993630,3cyclictest25-21ksoftirqd/120:29:591
2209993630,3cyclictest9-21ksoftirqd/021:00:000
57898350,2rtkit-daemon0-21swapper/023:50:350
57898350,2rtkit-daemon0-21swapper/023:50:350
57898350,2rtkit-daemon0-21swapper/020:27:370
2212993530,3cyclictest41-21ksoftirqd/320:35:003
2212993530,3cyclictest41-21ksoftirqd/300:30:343
2212993530,2cyclictest41-21ksoftirqd/322:50:003
2212993529,4cyclictest41-21ksoftirqd/320:17:083
2211993530,3cyclictest33-21ksoftirqd/220:40:052
2211993530,3cyclictest33-21ksoftirqd/220:35:122
2211993530,3cyclictest33-21ksoftirqd/200:10:392
2211993529,4cyclictest33-21ksoftirqd/223:03:192
2211993529,4cyclictest33-21ksoftirqd/222:55:282
2211993529,4cyclictest33-21ksoftirqd/222:29:102
2211993529,4cyclictest33-21ksoftirqd/219:39:292
2210993532,2cyclictest25-21ksoftirqd/120:55:001
2210993531,3cyclictest25-21ksoftirqd/120:30:131
2210993531,2cyclictest25-21ksoftirqd/121:55:001
2210993530,3cyclictest25-21ksoftirqd/123:50:121
2210993530,3cyclictest25-21ksoftirqd/123:50:121
2210993530,3cyclictest25-21ksoftirqd/123:40:001
2210993530,3cyclictest25-21ksoftirqd/122:30:181
2210993530,3cyclictest25-21ksoftirqd/122:20:281
2210993530,3cyclictest25-21ksoftirqd/121:10:001
2210993530,3cyclictest25-21ksoftirqd/119:40:171
2210993529,4cyclictest25-21ksoftirqd/123:43:261
2210993529,4cyclictest25-21ksoftirqd/122:07:301
2210993529,4cyclictest25-21ksoftirqd/122:00:481
2210993529,4cyclictest25-21ksoftirqd/119:28:201
2210993529,4cyclictest25-21ksoftirqd/119:10:191
2210993529,4cyclictest25-21ksoftirqd/100:30:011
2209993530,3cyclictest32749-21sshd20:10:460
2209993529,4cyclictest9-21ksoftirqd/020:15:130
139391350,0ptp4l401ktimersoftd/322:51:373
2212993430,2cyclictest41-21ksoftirqd/323:30:013
2212993430,2cyclictest41-21ksoftirqd/321:45:003
2212993429,3cyclictest41-21ksoftirqd/320:10:283
2212993429,3cyclictest41-21ksoftirqd/320:10:013
2212993429,3cyclictest41-21ksoftirqd/319:25:263
2212993429,3cyclictest41-21ksoftirqd/300:05:013
2212993428,4cyclictest41-21ksoftirqd/320:49:503
2212993428,4cyclictest41-21ksoftirqd/320:49:503
2212993428,4cyclictest41-21ksoftirqd/319:58:273
2212993428,3cyclictest41-21ksoftirqd/323:10:013
2211993429,3cyclictest33-21ksoftirqd/222:43:222
2211993428,4cyclictest33-21ksoftirqd/223:30:312
2211993428,4cyclictest33-21ksoftirqd/223:06:532
2211993428,4cyclictest33-21ksoftirqd/221:54:482
2211993428,4cyclictest33-21ksoftirqd/220:57:312
2211993428,4cyclictest33-21ksoftirqd/220:46:202
2211993428,4cyclictest33-21ksoftirqd/220:46:202
2211993428,4cyclictest33-21ksoftirqd/220:07:522
2211993428,4cyclictest33-21ksoftirqd/219:59:382
2211993428,4cyclictest33-21ksoftirqd/219:27:092
2211993428,4cyclictest33-21ksoftirqd/219:21:392
2211993428,4cyclictest33-21ksoftirqd/200:20:542
2211993427,5cyclictest33-21ksoftirqd/223:56:392
2211993427,5cyclictest33-21ksoftirqd/221:20:092
2211993415,17cyclictest33-21ksoftirqd/221:30:012
2210993430,3cyclictest25-21ksoftirqd/121:26:121
2210993429,3cyclictest25-21ksoftirqd/121:15:001
2210993428,3cyclictest25-21ksoftirqd/123:00:181
2209993428,4cyclictest9-21ksoftirqd/022:26:430
2209993428,4cyclictest9-21ksoftirqd/021:31:590
2209993428,4cyclictest9-21ksoftirqd/020:02:290
220999341,2cyclictest0-21swapper/019:25:150
220999340,3cyclictest21486-21/usr/sbin/munin23:10:290
2212993328,3cyclictest41-21ksoftirqd/322:40:003
2212993328,3cyclictest41-21ksoftirqd/321:15:003
2212993328,3cyclictest41-21ksoftirqd/321:00:203
2212993328,3cyclictest41-21ksoftirqd/320:40:053
2212993328,3cyclictest41-21ksoftirqd/300:14:593
2212993327,4cyclictest41-21ksoftirqd/322:22:453
2212993325,6cyclictest41-21ksoftirqd/321:10:003
221299331,29cyclictest26348-21fschecks_count22:15:173
2211993329,3cyclictest33-21ksoftirqd/222:36:292
2211993327,4cyclictest33-21ksoftirqd/222:20:112
2211993327,4cyclictest33-21ksoftirqd/222:11:572
2211993327,4cyclictest33-21ksoftirqd/221:57:562
2211993327,4cyclictest33-21ksoftirqd/220:52:262
2211993327,4cyclictest33-21ksoftirqd/220:00:102
2211993327,4cyclictest33-21ksoftirqd/219:16:342
2211993327,4cyclictest33-21ksoftirqd/200:38:502
2211993327,4cyclictest33-21ksoftirqd/200:32:572
2211993327,4cyclictest33-21ksoftirqd/200:02:292
2210993329,2cyclictest25-21ksoftirqd/121:30:191
2210993329,2cyclictest25-21ksoftirqd/120:50:001
2210993329,2cyclictest25-21ksoftirqd/120:50:001
2210993328,3cyclictest25-21ksoftirqd/122:50:201
2210993328,3cyclictest25-21ksoftirqd/120:57:571
2210993328,3cyclictest25-21ksoftirqd/119:20:201
2210993327,4cyclictest25-21ksoftirqd/122:29:411
2210993326,4cyclictest25-21ksoftirqd/119:31:331
2209993328,3cyclictest9-21ksoftirqd/022:50:000
2209993328,3cyclictest9-21ksoftirqd/021:27:430
2209993328,3cyclictest9-21ksoftirqd/019:37:060
2209993328,3cyclictest9-21ksoftirqd/000:14:540
2209993327,4cyclictest9-21ksoftirqd/022:33:170
2209993327,4cyclictest9-21ksoftirqd/022:20:090
2209993327,4cyclictest9-21ksoftirqd/022:15:110
2209993327,4cyclictest9-21ksoftirqd/021:59:070
2209993327,4cyclictest9-21ksoftirqd/019:43:520
2209993327,4cyclictest9-21ksoftirqd/019:14:550
2209993326,4cyclictest9-21ksoftirqd/021:50:200
2209993326,4cyclictest9-21ksoftirqd/000:02:590
220999330,3cyclictest11400-21taskset23:57:280
2212993228,3cyclictest41-21ksoftirqd/323:31:463
2212993227,3cyclictest41-21ksoftirqd/321:35:153
2212993227,3cyclictest41-21ksoftirqd/320:51:203
2212993227,3cyclictest41-21ksoftirqd/320:25:253
2212993227,3cyclictest41-21ksoftirqd/319:35:003
2212993227,3cyclictest41-21ksoftirqd/319:15:193
2212993227,3cyclictest41-21ksoftirqd/300:05:483
2212993226,4cyclictest41-21ksoftirqd/300:18:093
2211993226,4cyclictest33-21ksoftirqd/220:34:402
2211993226,4cyclictest33-21ksoftirqd/219:54:492
2211993226,4cyclictest33-21ksoftirqd/219:43:302
2210993227,3cyclictest25-21ksoftirqd/121:15:591
2210993227,3cyclictest25-21ksoftirqd/121:05:001
2210993227,3cyclictest25-21ksoftirqd/120:24:591
2210993226,4cyclictest25-21ksoftirqd/122:45:121
2210993226,4cyclictest25-21ksoftirqd/100:37:501
2210993226,4cyclictest25-21ksoftirqd/100:18:351
2210993226,4cyclictest25-21ksoftirqd/100:07:011
2210993226,3cyclictest25-21ksoftirqd/123:10:211
220999326,16cyclictest1317-21runrttasks23:16:280
2209993227,3cyclictest9-21ksoftirqd/021:46:150
2209993227,3cyclictest9-21ksoftirqd/021:15:120
2209993227,3cyclictest9-21ksoftirqd/020:30:130
2209993226,4cyclictest9-21ksoftirqd/021:20:070
2209993226,4cyclictest9-21ksoftirqd/019:57:520
2209993226,4cyclictest9-21ksoftirqd/019:50:500
2209993226,4cyclictest9-21ksoftirqd/000:28:220
139391320,0ptp4l401ktimersoftd/323:55:153
139391320,0ptp4l401ktimersoftd/323:10:213
139391320,0ptp4l401ktimersoftd/320:55:123
2212993126,3cyclictest41-21ksoftirqd/322:05:013
2212993125,4cyclictest41-21ksoftirqd/322:44:273
2212993125,4cyclictest41-21ksoftirqd/300:38:403
2212993125,3cyclictest41-21ksoftirqd/323:40:253
2212993125,3cyclictest41-21ksoftirqd/323:00:183
2212993124,5cyclictest41-21ksoftirqd/321:29:173
2212993118,6cyclictest41-21ksoftirqd/319:40:233
2211993128,2cyclictest33-21ksoftirqd/220:10:472
2211993127,3cyclictest33-21ksoftirqd/200:15:152
2211993126,3cyclictest33-21ksoftirqd/223:21:392
2211993126,3cyclictest33-21ksoftirqd/223:21:392
2211993126,3cyclictest33-21ksoftirqd/221:05:122
2211993126,3cyclictest33-21ksoftirqd/220:16:202
2211993125,4cyclictest33-21ksoftirqd/223:47:232
2211993125,4cyclictest33-21ksoftirqd/223:26:062
2211993125,4cyclictest33-21ksoftirqd/222:49:192
2210993126,3cyclictest25-21ksoftirqd/122:15:201
2210993126,3cyclictest25-21ksoftirqd/120:10:191
2209993126,3cyclictest9-21ksoftirqd/023:42:040
2209993126,3cyclictest9-21ksoftirqd/021:40:010
2209993125,4cyclictest9-21ksoftirqd/022:13:420
2209993125,4cyclictest9-21ksoftirqd/020:08:510
2209993114,13cyclictest27472-21tr23:25:140
220999310,3cyclictest18920-21ps20:50:250
139391310,0ptp4l401ktimersoftd/322:30:303
2212993025,3cyclictest19554-21irqrtprio19:45:193
2212993024,4cyclictest41-21ksoftirqd/321:56:533
2211993026,3cyclictest33-21ksoftirqd/221:30:432
2211993025,3cyclictest33-21ksoftirqd/222:15:302
2211993025,3cyclictest33-21ksoftirqd/221:46:032
2210993024,4cyclictest25-21ksoftirqd/120:41:091
2209993025,3cyclictest9-21ksoftirqd/023:02:000
2209993025,3cyclictest9-21ksoftirqd/022:53:510
2209993025,3cyclictest9-21ksoftirqd/022:38:180
2209993025,3cyclictest9-21ksoftirqd/019:48:490
2209993024,4cyclictest9-21ksoftirqd/020:40:280
2209993013,14cyclictest23071-21iostat21:00:200
2209993011,17cyclictest23240-21sed00:20:250
2209993011,16cyclictest640-21cut23:35:200
2212992924,3cyclictest41-21ksoftirqd/323:50:113
2212992924,3cyclictest41-21ksoftirqd/323:50:113
2211992924,3cyclictest33-21ksoftirqd/222:05:152
2211992924,3cyclictest33-21ksoftirqd/221:16:062
2211992923,4cyclictest33-21ksoftirqd/223:53:532
2211992923,4cyclictest33-21ksoftirqd/223:53:532
2211992923,4cyclictest33-21ksoftirqd/221:36:582
2211992923,4cyclictest33-21ksoftirqd/200:25:432
2211992923,3cyclictest33-21ksoftirqd/221:13:522
2210992925,3cyclictest25-21ksoftirqd/122:35:161
2209992924,3cyclictest9-21ksoftirqd/022:40:500
2209992923,4cyclictest9-21ksoftirqd/023:48:500
2209992923,4cyclictest9-21ksoftirqd/022:09:340
2209992923,4cyclictest9-21ksoftirqd/020:46:460
2209992923,4cyclictest9-21ksoftirqd/020:46:460
2209992923,4cyclictest9-21ksoftirqd/000:19:120
2209992912,15cyclictest28880-21cat00:35:120
2212992824,3cyclictest41-21ksoftirqd/323:50:003
2212992824,3cyclictest41-21ksoftirqd/322:25:193
2211992823,3cyclictest33-21ksoftirqd/223:42:402
2211992823,3cyclictest33-21ksoftirqd/222:52:502
2211992823,3cyclictest33-21ksoftirqd/221:42:042
2211992823,3cyclictest33-21ksoftirqd/219:33:012
2210992822,4cyclictest25-21ksoftirqd/100:00:011
2209992822,4cyclictest9-21ksoftirqd/021:10:330
220999280,3cyclictest9567-21grep21:40:160
220999280,2cyclictest137002sleep019:32:280
220999280,2cyclictest0-21swapper/023:30:170
2211992722,3cyclictest33-21ksoftirqd/223:38:142
2211992722,3cyclictest33-21ksoftirqd/223:13:422
2211992722,3cyclictest33-21ksoftirqd/222:32:422
220999275,19cyclictest24998-21seq21:05:130
2211992622,3cyclictest33-21ksoftirqd/222:00:132
2211992621,3cyclictest33-21ksoftirqd/220:27:352
220999261,21cyclictest0-21swapper/023:05:120
2211992419,3cyclictest33-21ksoftirqd/220:24:212
2211992216,4cyclictest33-21ksoftirqd/200:07:022
2211992116,3cyclictest33-21ksoftirqd/221:03:012
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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