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2026-08-05 - 15:21
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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 all highest latencies:
System rackdslot4.osadl.org (updated Wed Aug 05, 2026 00:45:40)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2733822590,29sleep227343-21fschecks_count19:05:162
289282204169,23sleep10-21swapper/119:08:391
138591204170,23phc2sys0-21swapper/319:05:573
289112202168,22sleep00-21swapper/019:08:250
138591133108,14phc2sys0-21swapper/319:10:013
17112780,3sleep31712-21dump-pmu-power21:30:003
29327995932,3cyclictest33-21ksoftirqd/223:00:012
160652590,6sleep22932799cyclictest21:55:272
29325995510,12cyclictest2970-21awk23:40:220
29327995324,7cyclictest33-21ksoftirqd/222:15:182
29325995010,19cyclictest3891-21awk21:30:280
29327994820,7cyclictest33-21ksoftirqd/223:10:002
29327994819,3cyclictest33-21ksoftirqd/223:25:162
2932599485,11cyclictest31359-21cat23:35:010
29327994719,4cyclictest33-21ksoftirqd/200:00:192
29327994716,6cyclictest33-21ksoftirqd/222:44:592
2932799460,2cyclictest121rcu_preempt21:15:282
29327994515,4cyclictest33-21ksoftirqd/221:00:012
2932699452,10cyclictest12473-21hddtemp_smartct21:50:151
138491450,1ptp4l401ktimersoftd/300:19:313
2932799449,3cyclictest33-21ksoftirqd/220:05:262
29327994427,10cyclictest33-21ksoftirqd/221:30:242
29327994416,7cyclictest33-21ksoftirqd/220:00:192
29327994415,7cyclictest33-21ksoftirqd/223:55:142
29327994415,6cyclictest33-21ksoftirqd/221:15:002
29327994413,6cyclictest33-21ksoftirqd/220:35:252
29327994412,4cyclictest33-21ksoftirqd/219:55:142
29327994410,5cyclictest33-21ksoftirqd/220:35:002
2932699442,14cyclictest2361-21df19:20:161
2932599445,5cyclictest0-21swapper/019:40:270
29327994339,3cyclictest33-21ksoftirqd/200:40:002
29327994314,7cyclictest33-21ksoftirqd/200:25:012
29327994313,4cyclictest33-21ksoftirqd/223:45:162
2932799429,4cyclictest33-21ksoftirqd/221:05:182
2932799428,4cyclictest33-21ksoftirqd/222:10:272
2932799428,4cyclictest33-21ksoftirqd/219:15:172
29327994224,10cyclictest33-21ksoftirqd/221:40:202
29327994213,7cyclictest33-21ksoftirqd/221:50:212
29327994213,7cyclictest33-21ksoftirqd/219:50:142
29327994213,4cyclictest33-21ksoftirqd/220:55:012
29327994211,4cyclictest33-21ksoftirqd/221:45:122
29327994210,6cyclictest33-21ksoftirqd/219:20:162
2932699422,12cyclictest14487-21df_inode00:05:181
135191420,1getstats10957-1kworker/3:0H00:10:253
50798410,7rtkit-daemon0-21swapper/320:07:153
2932799419,6cyclictest33-21ksoftirqd/200:30:122
2932799418,6cyclictest33-21ksoftirqd/223:40:182
2932799416,4cyclictest33-21ksoftirqd/220:40:242
2932799415,5cyclictest33-21ksoftirqd/220:20:112
29327994115,7cyclictest33-21ksoftirqd/222:35:182
29327994112,4cyclictest33-21ksoftirqd/219:25:142
29327994111,5cyclictest33-21ksoftirqd/222:25:272
2932699413,35cyclictest223-21systemd-journal22:33:041
29325994134,4cyclictest6481-21turbostat.cron22:44:590
2932799406,3cyclictest33-21ksoftirqd/219:40:292
2932799404,3cyclictest33-21ksoftirqd/221:20:272
29327994035,3cyclictest33-21ksoftirqd/223:50:122
29327994028,9cyclictest33-21ksoftirqd/220:45:232
29327994011,4cyclictest33-21ksoftirqd/221:35:202
29327994010,3cyclictest33-21ksoftirqd/220:15:142
29328993934,3cyclictest413-21cron23:00:013
29328993926,10cyclictest41-21ksoftirqd/323:38:593
2932799397,9cyclictest33-21ksoftirqd/200:25:172
2932799395,3cyclictest121rcu_preempt23:00:142
29327993933,3cyclictest33-21ksoftirqd/223:10:152
29327993933,3cyclictest33-21ksoftirqd/200:15:142
29327993926,5cyclictest33-21ksoftirqd/221:30:002
29327993912,7cyclictest33-21ksoftirqd/220:10:252
29327993910,4cyclictest33-21ksoftirqd/220:25:242
29325993932,4cyclictest9-21ksoftirqd/019:10:120
29325993930,6cyclictest9-21ksoftirqd/021:05:040
50798380,2rtkit-daemon0-21swapper/222:52:192
29328993832,4cyclictest41-21ksoftirqd/319:45:003
2932799386,6cyclictest33-21ksoftirqd/223:15:142
29327993832,4cyclictest33-21ksoftirqd/223:20:182
29327993832,3cyclictest33-21ksoftirqd/200:05:162
2932799381,7cyclictest33-21ksoftirqd/219:35:272
29327993814,6cyclictest33-21ksoftirqd/219:45:262
2932599386,19cyclictest0-21swapper/020:40:150
29325993832,4cyclictest9-21ksoftirqd/021:23:150
2932599382,10cyclictest0-21swapper/022:30:290
2932799374,3cyclictest33-21ksoftirqd/222:45:132
29327993732,3cyclictest33-21ksoftirqd/222:35:002
29327993732,3cyclictest33-21ksoftirqd/222:00:292
29327993732,3cyclictest33-21ksoftirqd/221:05:002
29327993731,3cyclictest33-21ksoftirqd/223:35:012
2932799372,5cyclictest33-21ksoftirqd/223:35:302
2932799371,5cyclictest33-21ksoftirqd/219:30:162
2932799370,6cyclictest33-21ksoftirqd/219:10:182
2932699374,5cyclictest0-21swapper/122:15:161
29326993732,3cyclictest25-21ksoftirqd/119:45:411
29326993730,5cyclictest25-21ksoftirqd/120:29:291
29328993630,4cyclictest41-21ksoftirqd/322:21:303
29328993630,4cyclictest41-21ksoftirqd/320:37:333
29328993621,13cyclictest41-21ksoftirqd/321:09:503
29327993631,3cyclictest33-21ksoftirqd/200:10:142
29327993631,2cyclictest33-21ksoftirqd/222:05:242
2932799361,6cyclictest33-21ksoftirqd/222:20:282
29326993630,4cyclictest25-21ksoftirqd/123:08:471
29326993630,4cyclictest25-21ksoftirqd/121:21:591
29326993630,4cyclictest25-21ksoftirqd/121:15:331
29326993630,4cyclictest25-21ksoftirqd/121:11:011
29326993630,4cyclictest25-21ksoftirqd/119:43:591
2932599365,12cyclictest28332-21taskset00:30:270
29325993631,3cyclictest9-21ksoftirqd/021:36:000
50798350,3rtkit-daemon242-21systemd-udevd20:32:073
29328993530,3cyclictest41-21ksoftirqd/322:10:003
29328993530,3cyclictest41-21ksoftirqd/319:33:463
29328993529,4cyclictest41-21ksoftirqd/323:23:443
29328993529,4cyclictest41-21ksoftirqd/322:48:153
29328993529,4cyclictest41-21ksoftirqd/322:30:423
29328993529,4cyclictest41-21ksoftirqd/321:48:053
29328993529,4cyclictest41-21ksoftirqd/320:29:023
29328993529,4cyclictest41-21ksoftirqd/319:27:203
29328993529,4cyclictest41-21ksoftirqd/300:21:173
29328993528,4cyclictest41-21ksoftirqd/321:01:163
2932899350,32cyclictest9212-21wc21:45:013
2932599357,17cyclictest12619-21sed21:50:170
2932599354,11cyclictest15976-21timerandwakeup21:55:250
29325993530,3cyclictest9-21ksoftirqd/022:50:020
29325993529,4cyclictest9-21ksoftirqd/020:27:270
29325993528,5cyclictest9-21ksoftirqd/019:54:410
29325993528,4cyclictest9-21ksoftirqd/023:22:180
29328993428,4cyclictest41-21ksoftirqd/323:14:193
29328993428,4cyclictest41-21ksoftirqd/322:02:343
29328993428,4cyclictest41-21ksoftirqd/321:52:433
29328993428,4cyclictest41-21ksoftirqd/320:48:283
29328993428,4cyclictest41-21ksoftirqd/320:12:383
29328993428,3cyclictest41-21ksoftirqd/319:22:533
29328993427,4cyclictest41-21ksoftirqd/322:54:493
29328993427,4cyclictest41-21ksoftirqd/321:57:243
29328993427,4cyclictest41-21ksoftirqd/320:24:383
29328993427,4cyclictest41-21ksoftirqd/320:17:513
29328993412,19cyclictest21426-21dump-pmu-power20:00:003
29328993412,19cyclictest14948-21expr20:50:163
29326993429,3cyclictest25-21ksoftirqd/123:52:561
29326993429,3cyclictest25-21ksoftirqd/122:25:121
29326993428,4cyclictest25-21ksoftirqd/122:23:411
29326993428,4cyclictest25-21ksoftirqd/121:31:431
29326993427,4cyclictest25-21ksoftirqd/120:53:161
29326993426,5cyclictest25-21ksoftirqd/100:40:011
2932599347,10cyclictest11304-21taskset19:36:340
2932599345,10cyclictest0-21swapper/020:20:250
29325993429,3cyclictest9-21ksoftirqd/023:38:100
29325993428,4cyclictest9-21ksoftirqd/020:39:440
29325993428,4cyclictest9-21ksoftirqd/000:03:420
29328993327,4cyclictest41-21ksoftirqd/323:44:233
29328993327,4cyclictest41-21ksoftirqd/322:40:123
29328993327,4cyclictest41-21ksoftirqd/320:42:343
29328993327,4cyclictest41-21ksoftirqd/320:00:103
29328993327,4cyclictest41-21ksoftirqd/300:39:073
29328993327,4cyclictest41-21ksoftirqd/300:33:173
29328993326,4cyclictest41-21ksoftirqd/323:18:133
29328993311,20cyclictest4498-21expr23:45:143
29328993311,20cyclictest12004-21sed00:00:143
29326993327,4cyclictest25-21ksoftirqd/122:43:401
29326993327,4cyclictest25-21ksoftirqd/122:02:121
29326993327,4cyclictest25-21ksoftirqd/121:27:131
29326993327,4cyclictest25-21ksoftirqd/120:01:361
29326993327,4cyclictest25-21ksoftirqd/119:31:561
29326993327,4cyclictest25-21ksoftirqd/100:00:381
29326993326,4cyclictest25-21ksoftirqd/120:08:561
2932699331,10cyclictest29410-21grep19:10:131
2932599337,10cyclictest15817-21/usr/sbin/munin20:50:240
29325993328,3cyclictest9-21ksoftirqd/023:15:120
29325993328,3cyclictest9-21ksoftirqd/023:07:130
29325993327,4cyclictest9-21ksoftirqd/022:48:590
29325993327,4cyclictest9-21ksoftirqd/022:08:360
29325993327,4cyclictest9-21ksoftirqd/019:32:510
29325993326,4cyclictest9-21ksoftirqd/022:35:520
138491330,4ptp4l2932899cyclictest22:15:423
29328993227,3cyclictest41-21ksoftirqd/323:04:533
29328993227,3cyclictest41-21ksoftirqd/322:25:123
29328993227,3cyclictest41-21ksoftirqd/321:23:383
29328993227,3cyclictest41-21ksoftirqd/319:16:493
29328993226,4cyclictest41-21ksoftirqd/322:11:363
29328993226,3cyclictest41-21ksoftirqd/323:51:103
29328993225,4cyclictest41-21ksoftirqd/321:14:283
29328993211,18cyclictest2211-21cstates21:30:143
29326993226,4cyclictest25-21ksoftirqd/123:26:351
29326993226,4cyclictest25-21ksoftirqd/122:07:491
29326993226,4cyclictest25-21ksoftirqd/121:03:221
29326993226,4cyclictest25-21ksoftirqd/119:50:571
29326993226,4cyclictest25-21ksoftirqd/119:15:391
29326993226,3cyclictest25-21ksoftirqd/100:24:591
29326993225,5cyclictest25-21ksoftirqd/119:35:251
2932699321,12cyclictest25007-21iostat00:25:201
2932599324,9cyclictest0-21swapper/023:45:040
2932599323,18cyclictest0-21swapper/020:05:120
29325993227,3cyclictest9-21ksoftirqd/023:10:060
29325993226,4cyclictest9-21ksoftirqd/022:57:500
29325993226,4cyclictest9-21ksoftirqd/022:17:190
29325993226,4cyclictest9-21ksoftirqd/021:19:500
29325993226,4cyclictest9-21ksoftirqd/020:30:320
29325993226,4cyclictest9-21ksoftirqd/019:28:180
29325993226,4cyclictest9-21ksoftirqd/000:18:140
29328993126,3cyclictest41-21ksoftirqd/321:39:413
29328993125,4cyclictest41-21ksoftirqd/320:59:033
29328993125,4cyclictest41-21ksoftirqd/319:47:023
29328993125,4cyclictest41-21ksoftirqd/300:28:243
29328993110,18cyclictest1303-21runrttasks23:56:563
29326993126,3cyclictest25-21ksoftirqd/123:46:061
29326993125,4cyclictest25-21ksoftirqd/122:37:541
29326993125,4cyclictest25-21ksoftirqd/120:20:101
29326993125,4cyclictest25-21ksoftirqd/120:10:471
29326993125,4cyclictest25-21ksoftirqd/100:18:581
29326993124,5cyclictest25-21ksoftirqd/122:50:341
2932599315,7cyclictest24866-21hddtemp_smartct00:25:180
2932599313,17cyclictest0-21swapper/021:45:190
29325993127,3cyclictest9-21ksoftirqd/022:25:130
29325993127,3cyclictest9-21ksoftirqd/019:55:420
29325993126,3cyclictest9-21ksoftirqd/020:12:580
29325993126,3cyclictest9-21ksoftirqd/000:22:070
29325993126,3cyclictest9-21ksoftirqd/000:11:300
29325993125,4cyclictest9-21ksoftirqd/023:59:410
29328993026,3cyclictest41-21ksoftirqd/319:37:043
29328993025,3cyclictest41-21ksoftirqd/323:31:393
29328993023,4cyclictest41-21ksoftirqd/321:15:233
29328993012,16cyclictest1328-21sshd00:06:283
29326993025,3cyclictest25-21ksoftirqd/121:56:031
29326993025,3cyclictest25-21ksoftirqd/121:42:021
29326993025,3cyclictest25-21ksoftirqd/121:35:041
29326993025,3cyclictest25-21ksoftirqd/120:58:011
29326993024,4cyclictest25-21ksoftirqd/123:03:211
29326993024,4cyclictest25-21ksoftirqd/122:58:161
29326993024,4cyclictest25-21ksoftirqd/120:42:121
29326993023,5cyclictest25-21ksoftirqd/123:15:071
2932599305,14cyclictest0-21swapper/020:00:140
2932599304,15cyclictest21733-21apt-get22:10:130
2932599304,14cyclictest30443-21ls20:15:210
29325993024,4cyclictest9-21ksoftirqd/023:28:400
29325993024,4cyclictest9-21ksoftirqd/021:01:450
29325993024,4cyclictest9-21ksoftirqd/000:07:070
138491300,11ptp4l2932899cyclictest23:06:473
29328992923,4cyclictest41-21ksoftirqd/323:29:343
29328992923,4cyclictest41-21ksoftirqd/319:50:123
29326992924,3cyclictest25-21ksoftirqd/123:14:201
29326992924,3cyclictest25-21ksoftirqd/122:14:071
29326992923,4cyclictest25-21ksoftirqd/123:57:371
29326992923,3cyclictest25-21ksoftirqd/120:33:351
2932699292,15cyclictest31547-21apt-get23:35:151
2932599295,8cyclictest3832-21users19:20:290
2932599295,7cyclictest14061-21sshd20:45:490
2932599295,13cyclictest18930-21users20:55:300
29325992924,3cyclictest9-21ksoftirqd/000:36:590
29325992923,4cyclictest9-21ksoftirqd/022:02:310
29326992822,4cyclictest25-21ksoftirqd/123:23:101
2932699282,12cyclictest9581-21expr21:45:121
2932599285,8cyclictest6983-21apt-get21:40:130
29325992823,3cyclictest9-21ksoftirqd/022:23:050
29325992823,3cyclictest9-21ksoftirqd/021:27:570
29325992823,3cyclictest9-21ksoftirqd/019:19:550
29325992822,4cyclictest9-21ksoftirqd/023:04:170
29325992822,4cyclictest9-21ksoftirqd/021:14:450
2932899271,5cyclictest2315-21gnome-shell22:39:593
29326992723,3cyclictest25-21ksoftirqd/120:45:101
29326992722,3cyclictest25-21ksoftirqd/122:49:201
29326992721,4cyclictest25-21ksoftirqd/120:36:221
29326992721,4cyclictest25-21ksoftirqd/119:26:461
2932599274,7cyclictest7354-21iostat23:50:160
29326992621,3cyclictest25-21ksoftirqd/119:57:081
29326992620,4cyclictest25-21ksoftirqd/100:14:411
2932699256,5cyclictest25-21ksoftirqd/123:30:111
29326992520,3cyclictest25-21ksoftirqd/100:32:451
29325992519,4cyclictest9-21ksoftirqd/019:48:160
29326992418,4cyclictest25-21ksoftirqd/120:15:201
2932699235,5cyclictest25-21ksoftirqd/123:42:321
29326992318,3cyclictest25-21ksoftirqd/121:05:131
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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