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2026-07-16 - 11:31
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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 Jul 16, 2026 00:45:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
305392203168,23sleep30-21swapper/319:06:483
305892202169,22sleep10-21swapper/119:07:271
306252201167,22sleep20-21swapper/219:07:552
305612201168,21sleep00-21swapper/019:07:050
1908821820,7sleep33108399cyclictest00:10:163
138591163125,13phc2sys0-21swapper/319:10:013
602321580,7sleep23108299cyclictest22:40:002
31080996810,16cyclictest14936-21grep00:00:230
3108099618,10cyclictest6126-21cstates20:30:130
315982600,2sleep131601-21sed19:10:151
31080996012,11cyclictest12958-21vmstat22:50:270
3108099599,11cyclictest25716-21date21:10:010
3108099549,11cyclictest14809-21sensors20:45:250
3108099538,7cyclictest28273-21apt-get21:15:110
3108099538,11cyclictest9603-21cat21:40:200
3108099538,11cyclictest9603-21cat21:40:200
3108099538,10cyclictest5072-21mailstats21:30:250
3108099518,7cyclictest3756-21apt-get19:20:120
3108099518,14cyclictest22802-21sshd21:01:040
3108099508,13cyclictest12122-21irqstats19:35:190
3108099507,8cyclictest10757-21apt-get21:45:030
3108099489,8cyclictest31691-21fschecks_time19:10:160
3108099488,14cyclictest4452-21irqstats23:40:190
3108099469,7cyclictest21691-21iostat_ios19:55:180
3108099466,7cyclictest16782-21ps19:45:180
138491460,2ptp4l41-21ksoftirqd/321:23:213
3108399431,39cyclictest18992-21fschecks_count19:50:163
3108099438,7cyclictest19428-21irqstats20:55:180
3108099438,18cyclictest15884-21dpkg20:50:010
138491430,0ptp4l401ktimersoftd/300:02:223
138491420,0ptp4l401ktimersoftd/319:41:213
138491420,0ptp4l401ktimersoftd/319:41:213
138491410,0ptp4l401ktimersoftd/320:57:333
138491410,0ptp4l401ktimersoftd/300:07:233
50798400,5rtkit-daemon27238-21processes20:05:233
3108099407,7cyclictest9129-21diskstats19:30:150
31083993731,4cyclictest41-21ksoftirqd/322:54:343
31083993731,4cyclictest41-21ksoftirqd/322:16:313
31083993731,4cyclictest41-21ksoftirqd/322:16:303
31083993730,4cyclictest41-21ksoftirqd/323:18:583
31082993732,3cyclictest33-21ksoftirqd/219:55:512
31082993731,4cyclictest33-21ksoftirqd/220:57:472
31082993730,4cyclictest33-21ksoftirqd/219:10:032
31081993731,4cyclictest25-21ksoftirqd/120:59:031
3108099377,14cyclictest8377-21apt-get20:35:120
31080993731,3cyclictest23427-21egrep23:15:120
50798360,2rtkit-daemon0-21swapper/319:18:553
31083993630,4cyclictest41-21ksoftirqd/323:10:103
31083993630,4cyclictest41-21ksoftirqd/319:46:233
31083993630,4cyclictest41-21ksoftirqd/319:27:383
31083993630,3cyclictest41-21ksoftirqd/322:01:593
31082993630,4cyclictest33-21ksoftirqd/223:35:372
31082993630,4cyclictest33-21ksoftirqd/222:52:362
31082993630,4cyclictest33-21ksoftirqd/222:46:472
31082993630,4cyclictest33-21ksoftirqd/222:24:522
31082993630,4cyclictest33-21ksoftirqd/221:16:042
31082993630,4cyclictest33-21ksoftirqd/220:41:102
31082993630,4cyclictest33-21ksoftirqd/220:00:392
31082993630,4cyclictest33-21ksoftirqd/219:31:542
31082993630,4cyclictest33-21ksoftirqd/200:05:342
31081993630,4cyclictest25-21ksoftirqd/119:38:311
31081993630,4cyclictest25-21ksoftirqd/119:34:221
31081993630,4cyclictest25-21ksoftirqd/100:05:041
31080993630,4cyclictest9-21ksoftirqd/022:20:170
31083993529,4cyclictest41-21ksoftirqd/322:47:363
31083993529,4cyclictest41-21ksoftirqd/322:30:353
31083993529,4cyclictest41-21ksoftirqd/321:01:093
31083993529,4cyclictest41-21ksoftirqd/319:37:383
31082993530,3cyclictest33-21ksoftirqd/200:15:122
31082993529,4cyclictest33-21ksoftirqd/223:20:042
31082993529,4cyclictest33-21ksoftirqd/223:14:232
31082993529,4cyclictest33-21ksoftirqd/220:39:422
31082993529,4cyclictest33-21ksoftirqd/220:22:372
31082993529,4cyclictest33-21ksoftirqd/220:06:042
31082993529,4cyclictest33-21ksoftirqd/219:42:092
31082993529,4cyclictest33-21ksoftirqd/219:42:092
31082993529,4cyclictest33-21ksoftirqd/200:35:352
31081993529,4cyclictest25-21ksoftirqd/123:18:061
31081993529,4cyclictest25-21ksoftirqd/122:44:491
31081993529,4cyclictest25-21ksoftirqd/122:12:241
31081993529,4cyclictest25-21ksoftirqd/122:02:451
31081993529,4cyclictest25-21ksoftirqd/121:19:321
31081993529,4cyclictest25-21ksoftirqd/120:07:271
31081993529,4cyclictest25-21ksoftirqd/119:44:501
31081993529,4cyclictest25-21ksoftirqd/119:44:501
31080993530,3cyclictest9-21ksoftirqd/021:21:070
31080993529,4cyclictest9-21ksoftirqd/022:37:010
31080993529,4cyclictest9-21ksoftirqd/022:12:550
31083993430,3cyclictest41-21ksoftirqd/321:45:123
31083993430,3cyclictest41-21ksoftirqd/300:38:193
31083993428,4cyclictest41-21ksoftirqd/323:53:033
31083993428,4cyclictest41-21ksoftirqd/322:59:433
31083993428,4cyclictest41-21ksoftirqd/321:07:553
31083993428,4cyclictest41-21ksoftirqd/300:25:333
31082993428,4cyclictest33-21ksoftirqd/223:00:362
31082993428,4cyclictest33-21ksoftirqd/222:04:332
31082993428,4cyclictest33-21ksoftirqd/221:51:062
31082993428,4cyclictest33-21ksoftirqd/221:14:362
31082993428,4cyclictest33-21ksoftirqd/220:46:122
31081993429,3cyclictest25-21ksoftirqd/119:53:021
31081993428,4cyclictest25-21ksoftirqd/123:47:401
31081993428,4cyclictest25-21ksoftirqd/123:22:391
31081993428,4cyclictest25-21ksoftirqd/121:56:511
31081993428,4cyclictest25-21ksoftirqd/120:22:091
31081993427,5cyclictest25-21ksoftirqd/122:33:461
31081993427,4cyclictest25-21ksoftirqd/100:02:261
3108099349,12cyclictest10837-21/usr/sbin/munin20:40:210
3108099348,15cyclictest26013-21/usr/sbin/munin00:25:200
31080993428,4cyclictest9-21ksoftirqd/023:13:330
31080993428,4cyclictest9-21ksoftirqd/020:19:260
31080993428,4cyclictest9-21ksoftirqd/000:12:060
3108099340,7cyclictest22146-21meminfo22:05:190
31083993328,3cyclictest41-21ksoftirqd/323:40:003
31083993327,4cyclictest41-21ksoftirqd/323:34:263
31083993327,4cyclictest41-21ksoftirqd/322:20:363
31083993327,4cyclictest41-21ksoftirqd/321:57:293
31083993327,4cyclictest41-21ksoftirqd/320:37:543
31083993327,4cyclictest41-21ksoftirqd/319:55:383
31083993327,4cyclictest41-21ksoftirqd/319:32:153
31083993327,4cyclictest41-21ksoftirqd/300:32:463
31083993321,10cyclictest41-21ksoftirqd/320:49:053
31082993329,3cyclictest33-21ksoftirqd/220:51:202
31082993328,3cyclictest33-21ksoftirqd/223:18:542
31082993328,3cyclictest33-21ksoftirqd/220:17:282
31082993328,3cyclictest33-21ksoftirqd/219:47:082
31082993327,4cyclictest33-21ksoftirqd/223:45:362
31082993327,4cyclictest33-21ksoftirqd/219:28:012
31082993327,4cyclictest33-21ksoftirqd/219:19:102
31082993327,4cyclictest33-21ksoftirqd/200:32:422
31082993326,5cyclictest33-21ksoftirqd/223:44:352
31081993328,3cyclictest25-21ksoftirqd/120:37:431
31081993328,3cyclictest25-21ksoftirqd/119:47:201
31081993328,3cyclictest25-21ksoftirqd/100:26:471
31081993327,4cyclictest25-21ksoftirqd/123:14:491
31081993327,4cyclictest25-21ksoftirqd/121:38:021
31081993327,4cyclictest25-21ksoftirqd/121:02:031
31081993327,4cyclictest25-21ksoftirqd/120:28:451
31081993327,4cyclictest25-21ksoftirqd/120:00:091
31081993327,4cyclictest25-21ksoftirqd/119:22:371
31081993327,4cyclictest25-21ksoftirqd/119:19:251
31081993327,4cyclictest25-21ksoftirqd/100:12:311
3108199332,30cyclictest5324-21kworker/1:023:50:341
3108099339,15cyclictest16097-21/usr/sbin/munin21:55:250
31080993328,3cyclictest9-21ksoftirqd/020:27:320
31080993327,4cyclictest9-21ksoftirqd/023:30:300
31080993327,4cyclictest9-21ksoftirqd/022:32:530
31080993327,4cyclictest9-21ksoftirqd/022:03:310
31080993327,4cyclictest9-21ksoftirqd/000:21:560
138491330,0ptp4l401ktimersoftd/323:46:383
138491330,0ptp4l401ktimersoftd/322:36:243
138491330,0ptp4l401ktimersoftd/320:31:433
138491330,0ptp4l401ktimersoftd/320:20:213
31083993228,2cyclictest41-21ksoftirqd/323:58:183
31083993227,3cyclictest41-21ksoftirqd/320:25:573
31083993226,4cyclictest41-21ksoftirqd/321:16:373
31083993226,4cyclictest41-21ksoftirqd/320:53:153
31082993227,3cyclictest33-21ksoftirqd/200:29:012
31082993226,4cyclictest33-21ksoftirqd/222:19:352
31082993226,4cyclictest33-21ksoftirqd/222:19:352
31082993226,4cyclictest33-21ksoftirqd/222:14:332
31082993226,4cyclictest33-21ksoftirqd/221:28:442
31082993226,4cyclictest33-21ksoftirqd/219:53:482
31082993226,4cyclictest33-21ksoftirqd/200:13:122
31081993227,3cyclictest25-21ksoftirqd/119:26:181
31081993227,3cyclictest25-21ksoftirqd/100:34:231
31081993226,4cyclictest25-21ksoftirqd/123:41:581
31081993226,4cyclictest25-21ksoftirqd/123:28:531
31081993226,4cyclictest25-21ksoftirqd/122:19:421
31081993226,4cyclictest25-21ksoftirqd/122:19:421
31081993226,4cyclictest25-21ksoftirqd/121:47:161
31081993226,4cyclictest25-21ksoftirqd/120:10:041
31081993226,4cyclictest25-21ksoftirqd/100:19:491
31081993225,5cyclictest25-21ksoftirqd/121:11:021
3108099328,10cyclictest18398-21cat23:05:000
3108099327,7cyclictest13570-21apt-get22:55:110
3108099327,12cyclictest28352-21apt-get23:25:110
31080993226,4cyclictest9-21ksoftirqd/023:07:310
31080993226,4cyclictest9-21ksoftirqd/021:51:370
31083993126,3cyclictest41-21ksoftirqd/319:23:093
31083993126,3cyclictest41-21ksoftirqd/300:17:343
31083993125,4cyclictest41-21ksoftirqd/323:03:203
31083993125,4cyclictest41-21ksoftirqd/321:51:483
31083993125,4cyclictest41-21ksoftirqd/320:18:283
31082993126,3cyclictest33-21ksoftirqd/222:56:482
31082993126,3cyclictest33-21ksoftirqd/221:32:432
31082993126,3cyclictest33-21ksoftirqd/220:31:532
31082993126,3cyclictest33-21ksoftirqd/200:23:522
31082993125,4cyclictest33-21ksoftirqd/222:27:052
31082993125,4cyclictest33-21ksoftirqd/221:56:042
31081993126,3cyclictest25-21ksoftirqd/122:06:531
31081993126,3cyclictest25-21ksoftirqd/121:30:511
31081993126,3cyclictest25-21ksoftirqd/121:20:401
31081993125,4cyclictest25-21ksoftirqd/122:28:201
31081993125,4cyclictest25-21ksoftirqd/120:18:021
31081993125,4cyclictest25-21ksoftirqd/100:38:131
3108099315,18cyclictest0-21swapper/023:55:230
31080993125,4cyclictest9-21ksoftirqd/023:48:030
31080993125,4cyclictest9-21ksoftirqd/019:50:330
138491310,0ptp4l401ktimersoftd/323:21:033
138491310,0ptp4l401ktimersoftd/322:40:523
138491310,0ptp4l401ktimersoftd/321:42:173
138491310,0ptp4l401ktimersoftd/321:42:173
31083993025,3cyclictest41-21ksoftirqd/323:44:383
31083993025,3cyclictest41-21ksoftirqd/322:07:143
31083993025,3cyclictest41-21ksoftirqd/321:10:443
31083993024,4cyclictest41-21ksoftirqd/322:10:573
31083993024,4cyclictest41-21ksoftirqd/321:38:483
31083993024,4cyclictest41-21ksoftirqd/321:29:373
31083993024,4cyclictest41-21ksoftirqd/320:02:363
31082993025,3cyclictest33-21ksoftirqd/223:54:022
31082993025,3cyclictest33-21ksoftirqd/221:46:492
31082993024,4cyclictest33-21ksoftirqd/221:23:222
31082993024,4cyclictest33-21ksoftirqd/219:39:002
31082993019,9cyclictest33-21ksoftirqd/220:25:222
31081993025,3cyclictest25-21ksoftirqd/123:04:211
31081993025,3cyclictest25-21ksoftirqd/122:56:441
31081993025,3cyclictest25-21ksoftirqd/122:20:101
31081993024,4cyclictest25-21ksoftirqd/121:09:011
31081993024,4cyclictest25-21ksoftirqd/120:46:021
3108099307,7cyclictest25898-21apt-get23:20:120
3108099305,15cyclictest0-21swapper/020:10:250
31080993024,4cyclictest9-21ksoftirqd/022:19:050
31080993024,4cyclictest9-21ksoftirqd/022:19:050
31080993024,4cyclictest9-21ksoftirqd/020:21:260
31083992924,3cyclictest41-21ksoftirqd/322:28:533
31083992923,4cyclictest41-21ksoftirqd/323:27:193
31082992923,4cyclictest33-21ksoftirqd/223:09:582
31082992923,4cyclictest33-21ksoftirqd/221:42:522
31082992923,4cyclictest33-21ksoftirqd/221:42:522
31082992923,4cyclictest33-21ksoftirqd/221:07:102
31082992923,4cyclictest33-21ksoftirqd/219:21:522
31081992924,3cyclictest25-21ksoftirqd/123:39:131
31081992924,3cyclictest25-21ksoftirqd/121:25:291
31081992924,3cyclictest25-21ksoftirqd/120:34:061
31081992923,4cyclictest25-21ksoftirqd/122:35:591
3108099297,7cyclictest8659-21apt-get22:45:100
31080992924,3cyclictest9-21ksoftirqd/022:28:520
31080992924,3cyclictest9-21ksoftirqd/021:39:570
31080992924,3cyclictest9-21ksoftirqd/000:35:370
31080992923,4cyclictest9-21ksoftirqd/021:14:100
31080992923,4cyclictest9-21ksoftirqd/020:07:260
31083992823,3cyclictest41-21ksoftirqd/321:32:463
31083992823,3cyclictest41-21ksoftirqd/320:12:263
31083992822,4cyclictest41-21ksoftirqd/300:21:073
31082992823,3cyclictest33-21ksoftirqd/223:55:532
31082992823,3cyclictest33-21ksoftirqd/223:26:282
31082992823,3cyclictest33-21ksoftirqd/200:00:412
31082992822,4cyclictest33-21ksoftirqd/221:36:462
31081992823,3cyclictest25-21ksoftirqd/123:58:341
31081992823,3cyclictest25-21ksoftirqd/120:54:521
31080992823,3cyclictest9-21ksoftirqd/023:38:120
31080992822,4cyclictest9-21ksoftirqd/023:53:040
31083992722,3cyclictest41-21ksoftirqd/323:07:213
31082992721,4cyclictest33-21ksoftirqd/222:32:342
31082992721,4cyclictest33-21ksoftirqd/222:08:282
31081992722,3cyclictest25-21ksoftirqd/122:48:211
31081992722,3cyclictest25-21ksoftirqd/121:53:581
31081992721,4cyclictest25-21ksoftirqd/123:05:281
31081992721,4cyclictest25-21ksoftirqd/121:44:441
31081992721,4cyclictest25-21ksoftirqd/121:44:441
31081992721,4cyclictest25-21ksoftirqd/120:41:451
3108099275,5cyclictest50798rtkit-daemon00:15:230
31080992722,3cyclictest9-21ksoftirqd/019:26:260
31080992722,3cyclictest9-21ksoftirqd/019:19:400
31080992721,4cyclictest9-21ksoftirqd/020:01:120
31082992621,3cyclictest33-21ksoftirqd/223:33:402
31082992615,10cyclictest0-21swapper/221:00:232
31080992620,4cyclictest9-21ksoftirqd/000:05:160
31082992520,3cyclictest33-21ksoftirqd/222:44:222
31082992519,4cyclictest33-21ksoftirqd/220:12:502
31081992520,3cyclictest25-21ksoftirqd/123:31:381
31080992519,4cyclictest9-21ksoftirqd/019:41:470
31080992519,4cyclictest9-21ksoftirqd/019:41:470
138491250,0ptp4l401ktimersoftd/320:40:153
31080992420,3cyclictest9-21ksoftirqd/000:30:260
31080992412,9cyclictest6516-21cat22:40:130
31081992318,3cyclictest25-21ksoftirqd/119:55:101
31081992313,6cyclictest11116-21apt-get22:50:111
31080992314,6cyclictest2051-21cut21:25:170
31081991813,3cyclictest25-21ksoftirqd/100:23:591
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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