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2026-05-05 - 05:27
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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 highest latencies:
System rackdslot4.osadl.org (updated Tue May 05, 2026 00:45:45)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
138591208141,23phc2sys0-21swapper/319:06:563
281612204170,22sleep00-21swapper/019:05:450
283112203167,24sleep10-21swapper/119:07:351
282262200168,21sleep20-21swapper/219:06:352
1384911210,1ptp4l12821-21ls00:00:273
138491650,1ptp4l401ktimersoftd/300:15:593
271192590,2sleep00-21swapper/000:30:190
155842580,2sleep10-21swapper/121:55:271
40102550,2sleep30-21swapper/320:30:123
2849725538,10sleep10-21swapper/119:10:001
28792995429,9cyclictest33-21ksoftirqd/219:15:132
28792995024,8cyclictest33-21ksoftirqd/222:10:252
28792994925,8cyclictest33-21ksoftirqd/222:50:142
28792994919,7cyclictest33-21ksoftirqd/222:48:552
2879299491,6cyclictest0-21swapper/223:40:242
28792994819,7cyclictest33-21ksoftirqd/200:37:182
2879299479,5cyclictest33-21ksoftirqd/219:14:472
28792994718,7cyclictest33-21ksoftirqd/223:53:142
134432460,2sleep10-21swapper/120:50:001
2879299453,7cyclictest20589-21sed22:05:272
2879299452,5cyclictest321ktimersoftd/220:35:172
2879299442,6cyclictest9486-21awk21:45:162
28792994419,9cyclictest33-21ksoftirqd/223:25:002
28792994325,11cyclictest33-21ksoftirqd/221:00:242
138491430,0ptp4l401ktimersoftd/322:17:483
138491430,0ptp4l401ktimersoftd/321:48:453
28793994237,3cyclictest31020-21cron19:15:003
28792994226,9cyclictest33-21ksoftirqd/220:50:242
28792994224,10cyclictest33-21ksoftirqd/220:15:132
28792994222,9cyclictest33-21ksoftirqd/221:10:192
28792994219,8cyclictest33-21ksoftirqd/223:05:162
138491420,0ptp4l401ktimersoftd/321:57:233
138491420,0ptp4l401ktimersoftd/321:24:453
138491420,0ptp4l401ktimersoftd/319:26:223
138491420,0ptp4l401ktimersoftd/300:31:223
28793994135,3cyclictest20813-21sh23:14:593
28792994125,4cyclictest33-21ksoftirqd/223:10:132
28792994123,10cyclictest33-21ksoftirqd/220:55:172
28792994123,10cyclictest33-21ksoftirqd/220:55:172
138491410,0ptp4l401ktimersoftd/323:43:543
28791994034,3cyclictest29241-21grep23:30:191
138491400,0ptp4l401ktimersoftd/321:35:163
28792993922,10cyclictest33-21ksoftirqd/220:15:012
28792993921,10cyclictest33-21ksoftirqd/200:10:222
28792993831,5cyclictest33-21ksoftirqd/221:38:592
28793993733,3cyclictest41-21ksoftirqd/322:55:013
28793993732,3cyclictest41-21ksoftirqd/319:50:003
2879299373,4cyclictest33-21ksoftirqd/223:49:212
28792993733,2cyclictest311rcuc/200:31:232
28792993722,4cyclictest33-21ksoftirqd/220:45:002
28791993730,4cyclictest25-21ksoftirqd/123:06:071
28791993730,4cyclictest25-21ksoftirqd/121:26:591
28790993732,3cyclictest9-21ksoftirqd/020:00:000
28790993731,4cyclictest9-21ksoftirqd/023:57:220
138491370,1ptp4l401ktimersoftd/320:36:433
138491370,0ptp4l401ktimersoftd/322:40:133
50798360,2rtkit-daemon506-21rtkit-daemon20:50:270
28793993630,4cyclictest41-21ksoftirqd/320:15:133
28793993630,4cyclictest41-21ksoftirqd/319:37:093
28792993633,2cyclictest311rcuc/222:28:312
28792993633,2cyclictest311rcuc/200:29:582
28792993632,3cyclictest33-21ksoftirqd/220:05:192
28792993632,3cyclictest311rcuc/222:30:032
28792993632,2cyclictest311rcuc/220:45:412
28791993630,4cyclictest25-21ksoftirqd/123:23:161
28791993630,4cyclictest25-21ksoftirqd/119:51:351
28791993630,4cyclictest25-21ksoftirqd/100:32:521
28791993630,4cyclictest25-21ksoftirqd/100:16:041
28791993630,3cyclictest25-21ksoftirqd/100:03:591
28791993629,4cyclictest25-21ksoftirqd/122:07:591
28790993631,3cyclictest9-21ksoftirqd/022:55:120
28790993630,4cyclictest9-21ksoftirqd/020:16:420
28790993629,4cyclictest9-21ksoftirqd/000:06:590
138491360,0ptp4l401ktimersoftd/323:50:133
28793993531,3cyclictest41-21ksoftirqd/320:40:173
28793993530,3cyclictest41-21ksoftirqd/323:30:003
28793993530,3cyclictest41-21ksoftirqd/323:00:183
28793993530,3cyclictest41-21ksoftirqd/322:00:453
28793993530,3cyclictest41-21ksoftirqd/321:50:433
28793993530,3cyclictest41-21ksoftirqd/319:20:143
28793993530,3cyclictest41-21ksoftirqd/319:18:223
28792993532,2cyclictest311rcuc/221:54:122
28792993532,2cyclictest311rcuc/219:29:242
28792993529,4cyclictest33-21ksoftirqd/220:21:172
28792993528,4cyclictest33-21ksoftirqd/221:56:452
28791993530,3cyclictest25-21ksoftirqd/120:37:591
28791993529,4cyclictest25-21ksoftirqd/123:36:091
28791993529,4cyclictest25-21ksoftirqd/123:12:531
28791993529,4cyclictest25-21ksoftirqd/122:28:171
28791993529,4cyclictest25-21ksoftirqd/121:45:441
28791993529,4cyclictest25-21ksoftirqd/121:43:121
28791993529,4cyclictest25-21ksoftirqd/120:53:251
28791993529,4cyclictest25-21ksoftirqd/120:03:551
28790993530,3cyclictest9-21ksoftirqd/021:15:190
28790993530,3cyclictest9-21ksoftirqd/019:20:000
28790993529,4cyclictest9-21ksoftirqd/023:35:060
28790993529,4cyclictest9-21ksoftirqd/023:29:500
28790993529,4cyclictest9-21ksoftirqd/022:24:270
28790993529,4cyclictest9-21ksoftirqd/022:11:110
28790993529,4cyclictest9-21ksoftirqd/020:59:220
28790993529,4cyclictest9-21ksoftirqd/020:59:220
28790993529,4cyclictest9-21ksoftirqd/000:23:140
138591350,2phc2sys121rcu_preempt23:20:263
50798340,2rtkit-daemon506-21rtkit-daemon22:40:070
28793993430,3cyclictest41-21ksoftirqd/300:00:013
28793993430,2cyclictest41-21ksoftirqd/321:00:003
28793993430,2cyclictest41-21ksoftirqd/321:00:003
28793993429,3cyclictest41-21ksoftirqd/320:10:003
28793993429,3cyclictest41-21ksoftirqd/300:10:003
28793993428,4cyclictest41-21ksoftirqd/322:12:343
28793993428,4cyclictest41-21ksoftirqd/319:33:203
28793993428,3cyclictest41-21ksoftirqd/300:25:193
28793993420,12cyclictest41-21ksoftirqd/321:05:003
28792993429,3cyclictest33-21ksoftirqd/222:57:232
28792993429,3cyclictest33-21ksoftirqd/221:20:032
28792993428,4cyclictest33-21ksoftirqd/223:35:572
28792993428,4cyclictest33-21ksoftirqd/221:44:092
28792993428,4cyclictest33-21ksoftirqd/200:15:112
28792993428,3cyclictest33-21ksoftirqd/220:30:102
28792993427,4cyclictest33-21ksoftirqd/223:26:432
2879299342,5cyclictest33-21ksoftirqd/200:08:212
28792993419,4cyclictest33-21ksoftirqd/222:00:272
28792993418,8cyclictest33-21ksoftirqd/222:23:512
28791993429,3cyclictest25-21ksoftirqd/123:19:191
28791993429,3cyclictest25-21ksoftirqd/120:19:351
28791993429,3cyclictest25-21ksoftirqd/100:25:121
28791993428,4cyclictest25-21ksoftirqd/123:55:101
28791993428,4cyclictest25-21ksoftirqd/122:57:251
28791993428,4cyclictest25-21ksoftirqd/120:25:331
28791993428,4cyclictest25-21ksoftirqd/120:21:281
28791993428,4cyclictest25-21ksoftirqd/100:36:291
28790993429,3cyclictest9-21ksoftirqd/000:10:350
28790993428,4cyclictest9-21ksoftirqd/021:47:280
28790993428,4cyclictest9-21ksoftirqd/021:07:440
28790993428,4cyclictest9-21ksoftirqd/021:01:340
28790993428,4cyclictest9-21ksoftirqd/019:50:420
28790993427,5cyclictest9-21ksoftirqd/000:35:450
138491340,8ptp4l401ktimersoftd/320:47:163
28793993328,3cyclictest41-21ksoftirqd/322:59:533
28793993328,3cyclictest41-21ksoftirqd/322:30:183
28793993328,3cyclictest41-21ksoftirqd/321:32:233
28793993328,3cyclictest41-21ksoftirqd/321:25:383
28793993328,3cyclictest41-21ksoftirqd/300:20:163
28793993327,4cyclictest41-21ksoftirqd/323:31:213
28793993327,4cyclictest41-21ksoftirqd/321:40:113
28793993327,4cyclictest41-21ksoftirqd/321:12:253
28793993327,3cyclictest41-21ksoftirqd/322:50:013
28792993329,2cyclictest33-21ksoftirqd/223:30:232
28792993329,2cyclictest33-21ksoftirqd/222:35:172
28792993329,2cyclictest311rcuc/221:25:132
28792993328,3cyclictest33-21ksoftirqd/223:15:482
28792993328,3cyclictest33-21ksoftirqd/219:55:112
28792993328,3cyclictest33-21ksoftirqd/219:38:402
28792993327,4cyclictest33-21ksoftirqd/221:30:492
28792993327,4cyclictest33-21ksoftirqd/219:50:042
28792993327,4cyclictest33-21ksoftirqd/200:21:022
28792993326,4cyclictest33-21ksoftirqd/223:00:392
28792993317,9cyclictest33-21ksoftirqd/222:15:252
28791993328,3cyclictest25-21ksoftirqd/121:54:541
28791993327,4cyclictest25-21ksoftirqd/123:03:341
28791993327,4cyclictest25-21ksoftirqd/122:46:461
28791993327,4cyclictest25-21ksoftirqd/121:30:481
28791993327,4cyclictest25-21ksoftirqd/121:14:071
28791993327,4cyclictest25-21ksoftirqd/120:42:221
28791993327,4cyclictest25-21ksoftirqd/119:39:081
28791993327,4cyclictest25-21ksoftirqd/119:32:301
28791993327,4cyclictest25-21ksoftirqd/100:09:141
28790993328,3cyclictest9-21ksoftirqd/022:27:120
28790993328,3cyclictest9-21ksoftirqd/021:11:210
28790993328,3cyclictest9-21ksoftirqd/019:15:000
28790993327,3cyclictest9-21ksoftirqd/023:00:190
138491330,12ptp4l401ktimersoftd/320:05:013
28793993228,3cyclictest41-21ksoftirqd/323:45:263
28793993227,3cyclictest41-21ksoftirqd/322:40:013
28793993227,3cyclictest41-21ksoftirqd/320:50:203
28793993226,4cyclictest41-21ksoftirqd/322:25:023
28793993220,10cyclictest41-21ksoftirqd/321:05:293
28792993227,3cyclictest33-21ksoftirqd/221:16:092
28792993227,3cyclictest33-21ksoftirqd/219:46:392
28792993226,4cyclictest33-21ksoftirqd/221:07:062
28792993226,4cyclictest33-21ksoftirqd/220:01:432
28792993226,4cyclictest33-21ksoftirqd/219:34:152
28791993227,3cyclictest25-21ksoftirqd/122:03:181
28790993227,3cyclictest9-21ksoftirqd/023:53:530
28790993227,3cyclictest9-21ksoftirqd/023:12:370
28790993227,3cyclictest9-21ksoftirqd/022:50:130
28790993227,3cyclictest9-21ksoftirqd/020:03:380
28790993227,2cyclictest9-21ksoftirqd/021:55:000
28790993226,4cyclictest9-21ksoftirqd/023:22:360
28790993226,4cyclictest9-21ksoftirqd/022:18:250
28790993226,4cyclictest9-21ksoftirqd/022:00:080
28790993226,4cyclictest9-21ksoftirqd/021:27:380
28790993226,4cyclictest9-21ksoftirqd/020:24:360
28790993226,4cyclictest9-21ksoftirqd/019:32:000
28790993226,4cyclictest9-21ksoftirqd/000:18:390
28790993225,4cyclictest9-21ksoftirqd/023:32:310
28790993225,4cyclictest9-21ksoftirqd/023:06:150
28793993127,3cyclictest41-21ksoftirqd/300:40:003
28793993126,3cyclictest41-21ksoftirqd/320:30:003
28793993126,3cyclictest41-21ksoftirqd/319:41:333
28793993126,3cyclictest41-21ksoftirqd/319:41:333
28793993125,4cyclictest41-21ksoftirqd/323:35:513
28793993125,4cyclictest41-21ksoftirqd/323:08:133
28793993125,4cyclictest41-21ksoftirqd/319:59:363
28793993125,4cyclictest41-21ksoftirqd/300:13:503
28792993128,2cyclictest33-21ksoftirqd/219:45:002
28792993128,2cyclictest33-21ksoftirqd/219:45:002
28792993127,2cyclictest311rcuc/220:25:262
28792993126,3cyclictest33-21ksoftirqd/219:25:002
2879299311,4cyclictest33-21ksoftirqd/222:42:532
28791993126,3cyclictest25-21ksoftirqd/123:27:341
28791993126,3cyclictest25-21ksoftirqd/122:10:111
28791993125,4cyclictest25-21ksoftirqd/123:40:101
28791993125,4cyclictest25-21ksoftirqd/122:33:221
28791993125,4cyclictest25-21ksoftirqd/122:15:441
28791993125,4cyclictest25-21ksoftirqd/121:39:431
28791993125,4cyclictest25-21ksoftirqd/121:03:201
28791993125,4cyclictest25-21ksoftirqd/120:31:431
28791993125,4cyclictest25-21ksoftirqd/119:48:511
28790993126,3cyclictest9-21ksoftirqd/023:19:430
28790993126,3cyclictest9-21ksoftirqd/021:56:220
28790993126,3cyclictest9-21ksoftirqd/019:35:290
28790993126,3cyclictest9-21ksoftirqd/019:27:240
28790993125,4cyclictest9-21ksoftirqd/022:45:520
28790993125,4cyclictest9-21ksoftirqd/021:22:530
28790993125,4cyclictest9-21ksoftirqd/019:20:170
28790993125,4cyclictest9-21ksoftirqd/000:02:030
28793993026,2cyclictest41-21ksoftirqd/323:19:593
28793993025,4cyclictest41-21ksoftirqd/321:15:193
28793993024,4cyclictest41-21ksoftirqd/319:53:223
28793993017,10cyclictest41-21ksoftirqd/320:10:183
28792993023,4cyclictest33-21ksoftirqd/200:00:292
28791993025,3cyclictest25-21ksoftirqd/120:09:571
28791993024,4cyclictest25-21ksoftirqd/119:29:571
28790993025,3cyclictest9-21ksoftirqd/022:40:010
28790993025,3cyclictest9-21ksoftirqd/022:05:010
28790993025,3cyclictest9-21ksoftirqd/020:05:190
28790993024,4cyclictest9-21ksoftirqd/023:44:570
28793992924,3cyclictest41-21ksoftirqd/322:24:593
28792992924,3cyclictest33-21ksoftirqd/223:55:112
28791992924,3cyclictest25-21ksoftirqd/121:21:081
28791992924,3cyclictest25-21ksoftirqd/119:57:131
28791992924,3cyclictest25-21ksoftirqd/119:43:401
28791992924,3cyclictest25-21ksoftirqd/119:43:401
28790992923,4cyclictest9-21ksoftirqd/020:41:450
28790992923,4cyclictest9-21ksoftirqd/019:49:580
138491290,0ptp4l401ktimersoftd/320:22:363
28793992824,3cyclictest41-21ksoftirqd/322:05:193
28791992823,3cyclictest25-21ksoftirqd/122:37:561
28791992823,3cyclictest25-21ksoftirqd/122:22:221
28791992822,4cyclictest25-21ksoftirqd/122:52:481
28791992822,4cyclictest25-21ksoftirqd/121:15:041
28791992822,4cyclictest25-21ksoftirqd/119:23:111
28791992822,4cyclictest25-21ksoftirqd/100:10:471
28790992824,2cyclictest9-21ksoftirqd/021:40:230
28790992823,3cyclictest9-21ksoftirqd/020:48:380
28790992823,3cyclictest9-21ksoftirqd/020:12:040
28790992823,2cyclictest111rcuc/022:30:180
28790992822,3cyclictest9-21ksoftirqd/021:33:500
28790992722,3cyclictest9-21ksoftirqd/020:35:200
28790992722,3cyclictest9-21ksoftirqd/000:26:170
28790992721,4cyclictest9-21ksoftirqd/021:36:050
28791992621,3cyclictest25-21ksoftirqd/123:53:421
28791992621,3cyclictest25-21ksoftirqd/121:07:241
28791992620,4cyclictest25-21ksoftirqd/122:45:011
28791992620,4cyclictest25-21ksoftirqd/120:57:501
28791992620,4cyclictest25-21ksoftirqd/120:57:501
28791992620,4cyclictest25-21ksoftirqd/119:17:531
28791992520,3cyclictest25-21ksoftirqd/123:46:061
28790992519,4cyclictest9-21ksoftirqd/019:41:190
28790992519,4cyclictest9-21ksoftirqd/019:41:190
28790992420,2cyclictest9-21ksoftirqd/020:30:180
28790992418,3cyclictest9-21ksoftirqd/023:45:150
28791992318,3cyclictest25-21ksoftirqd/100:22:361
28790991913,3cyclictest784-21apt-get20:25:030
28791991813,3cyclictest26508-21sed20:10:131
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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