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2026-08-06 - 23:04
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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 Aug 06, 2026 12:45:42)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
307672204171,22sleep30-21swapper/307:06:593
308782201169,21sleep20-21swapper/207:08:272
307272199166,22sleep00-21swapper/007:06:280
287832199166,22sleep10-21swapper/107:05:041
1902921360,6sleep13130399cyclictest08:55:011
3130399680,25cyclictest30912-21latency_hist12:35:001
3130399671,25cyclictest26381-21date11:20:001
3130399660,25cyclictest8831-21latency_hist07:30:001
3130399660,25cyclictest13800-21date12:00:011
3130399660,23cyclictest7761-21cut10:40:181
3130399660,23cyclictest5060-21cut10:35:181
3130399651,24cyclictest1435-21latency_hist09:25:011
3130399650,32cyclictest16308-21date07:45:001
3130399650,24cyclictest22427-21cut11:10:191
3130399640,24cyclictest7694-21irqrtprio08:30:181
3130399640,24cyclictest29170-21date08:10:011
3130399631,21cyclictest23981-21latency_hist09:05:001
3130399630,24cyclictest563-21cat10:25:271
3130399630,24cyclictest12090-21sed07:35:131
3130399630,23cyclictest1485-21grep07:15:121
73432620,2sleep20-21swapper/207:25:192
3130399620,24cyclictest27323-21if_enp4s009:10:161
3130399601,24cyclictest29118-21apt-get09:15:091
3130399600,24cyclictest32744-21cat08:15:191
31304995929,4cyclictest33-21ksoftirqd/207:20:182
31304995925,6cyclictest33-21ksoftirqd/209:00:252
3130399591,25cyclictest16185-21cut12:05:001
3130399590,24cyclictest5092-21latency11:40:181
3130399590,24cyclictest5092-21latency11:40:181
3130399590,23cyclictest19381-21/usr/sbin/munin12:10:161
31304995830,6cyclictest33-21ksoftirqd/210:25:132
240062580,2sleep30-21swapper/310:10:123
31305995749,4cyclictest3679-21sh07:20:003
31304995724,4cyclictest33-21ksoftirqd/208:25:002
31304995723,6cyclictest33-21ksoftirqd/208:00:002
138491570,0ptp4l401ktimersoftd/308:20:223
31304995628,17cyclictest33-21ksoftirqd/209:30:272
31304995627,9cyclictest33-21ksoftirqd/210:45:192
31304995624,6cyclictest33-21ksoftirqd/210:50:212
31304995531,9cyclictest33-21ksoftirqd/211:05:262
31304995527,7cyclictest33-21ksoftirqd/210:15:232
31304995523,4cyclictest33-21ksoftirqd/208:35:192
31304995520,6cyclictest33-21ksoftirqd/209:15:012
138491550,41ptp4l0-21swapper/307:10:013
138491550,1ptp4l401ktimersoftd/307:40:223
31304995427,7cyclictest33-21ksoftirqd/208:05:132
31304995423,4cyclictest33-21ksoftirqd/212:10:152
3130399540,22cyclictest21911-21idleruntime12:15:141
3130399540,21cyclictest8934-21apt-get08:35:031
31304995327,12cyclictest33-21ksoftirqd/209:25:132
31304995320,5cyclictest33-21ksoftirqd/209:55:212
31304995316,8cyclictest33-21ksoftirqd/208:15:202
31304995222,5cyclictest33-21ksoftirqd/211:35:262
31304995222,4cyclictest33-21ksoftirqd/209:00:012
31304995221,3cyclictest33-21ksoftirqd/209:35:162
31304995218,6cyclictest33-21ksoftirqd/209:50:122
3130399520,20cyclictest2871-21pluginstate11:35:211
31304995116,7cyclictest33-21ksoftirqd/207:10:262
3130399511,21cyclictest0-21swapper/108:25:001
31304995023,3cyclictest33-21ksoftirqd/210:05:222
31304995022,7cyclictest33-21ksoftirqd/211:25:202
31304995021,6cyclictest33-21ksoftirqd/208:45:162
31304995021,3cyclictest33-21ksoftirqd/212:00:232
3130399500,27cyclictest3002-21phc2sys09:25:221
31302995044,3cyclictest14073-21basename08:45:000
31302995017,7cyclictest9-21ksoftirqd/008:20:000
277432500,2sleep00-21swapper/012:25:240
134991500,6getstats3130599cyclictest10:25:103
31304994923,7cyclictest33-21ksoftirqd/209:40:132
31304994920,4cyclictest33-21ksoftirqd/207:45:152
31304994920,4cyclictest33-21ksoftirqd/207:43:332
31304994919,8cyclictest33-21ksoftirqd/210:30:182
31304994919,3cyclictest33-21ksoftirqd/210:35:162
31304994915,8cyclictest33-21ksoftirqd/207:15:152
31304994912,7cyclictest33-21ksoftirqd/212:35:162
3130399491,27cyclictest4498-21df07:20:121
31302994926,5cyclictest9-21ksoftirqd/011:55:250
31302994919,7cyclictest9-21ksoftirqd/009:40:120
31304994836,3cyclictest33-21ksoftirqd/209:20:252
31304994823,7cyclictest33-21ksoftirqd/212:20:232
31304994820,6cyclictest33-21ksoftirqd/209:05:272
31304994819,4cyclictest33-21ksoftirqd/211:45:002
31304994819,4cyclictest33-21ksoftirqd/211:45:002
31302994817,4cyclictest9-21ksoftirqd/012:05:160
31304994727,9cyclictest33-21ksoftirqd/212:15:162
31304994721,7cyclictest33-21ksoftirqd/209:18:492
31304994717,5cyclictest33-21ksoftirqd/211:02:372
31304994717,4cyclictest33-21ksoftirqd/209:45:122
31304994716,6cyclictest33-21ksoftirqd/208:10:162
31304994715,8cyclictest33-21ksoftirqd/208:30:012
31302994718,4cyclictest9-21ksoftirqd/010:35:150
31302994717,4cyclictest9-21ksoftirqd/009:15:240
31304994618,3cyclictest33-21ksoftirqd/208:31:212
31304994616,7cyclictest33-21ksoftirqd/211:20:012
31304994615,7cyclictest33-21ksoftirqd/210:10:162
31304994613,9cyclictest33-21ksoftirqd/208:50:162
31302994619,7cyclictest9-21ksoftirqd/008:25:150
31302994616,3cyclictest9-21ksoftirqd/012:00:260
31302994615,4cyclictest9-21ksoftirqd/009:05:010
3130499458,5cyclictest33-21ksoftirqd/208:40:132
3130499455,9cyclictest33-21ksoftirqd/211:10:272
31304994518,5cyclictest33-21ksoftirqd/207:35:112
31304994517,3cyclictest33-21ksoftirqd/210:55:222
31304994513,9cyclictest33-21ksoftirqd/212:25:242
31304994512,4cyclictest33-21ksoftirqd/211:50:262
31302994515,4cyclictest9-21ksoftirqd/010:05:140
31302994514,4cyclictest9-21ksoftirqd/007:35:240
31304994428,5cyclictest33-21ksoftirqd/211:35:012
31304994428,4cyclictest33-21ksoftirqd/212:30:122
31304994416,9cyclictest33-21ksoftirqd/211:20:222
31304994416,9cyclictest33-21ksoftirqd/210:00:182
31302994417,6cyclictest9-21ksoftirqd/010:45:020
31302994417,4cyclictest9-21ksoftirqd/011:50:200
31302994416,3cyclictest9-21ksoftirqd/010:20:260
31302994414,6cyclictest9-21ksoftirqd/007:25:170
31304994315,4cyclictest33-21ksoftirqd/210:25:002
31302994313,7cyclictest9-21ksoftirqd/007:15:220
31304994231,3cyclictest33-21ksoftirqd/207:50:232
31304994226,4cyclictest33-21ksoftirqd/211:45:172
3130499421,3cyclictest121rcu_preempt08:05:002
3130499420,6cyclictest33-21ksoftirqd/210:40:022
31303994235,4cyclictest223-21systemd-journal09:35:011
31302994224,4cyclictest9-21ksoftirqd/011:00:210
31302994213,7cyclictest9-21ksoftirqd/008:10:270
31302994213,4cyclictest9-21ksoftirqd/007:15:010
31302994212,4cyclictest9-21ksoftirqd/012:30:180
138491420,0ptp4l401ktimersoftd/309:50:433
31304994130,4cyclictest33-21ksoftirqd/207:31:392
31304994115,3cyclictest33-21ksoftirqd/212:05:252
31304994112,8cyclictest33-21ksoftirqd/211:55:222
3130299419,3cyclictest9-21ksoftirqd/008:05:200
31302994137,2cyclictest9-21ksoftirqd/011:29:590
31302994136,3cyclictest9-21ksoftirqd/010:35:000
3130299411,3cyclictest23946-21kworker/0:209:45:190
31302994112,5cyclictest9-21ksoftirqd/008:35:200
31302994111,5cyclictest9-21ksoftirqd/010:45:140
138491410,1ptp4l401ktimersoftd/310:43:593
138491410,0ptp4l401ktimersoftd/310:53:053
3130299405,8cyclictest9-21ksoftirqd/010:50:170
3130299405,5cyclictest9-21ksoftirqd/011:45:110
3130299405,5cyclictest9-21ksoftirqd/009:35:230
31302994035,3cyclictest9-21ksoftirqd/011:45:000
31302994035,3cyclictest9-21ksoftirqd/011:45:000
31302994035,2cyclictest9-21ksoftirqd/011:15:190
3130299400,3cyclictest121rcu_preempt08:55:160
134991400,1getstats0-21swapper/308:15:093
31303993934,3cyclictest21311-21turbostat.cron07:55:011
3130399391,23cyclictest2315-21gnome-shell08:46:591
3130299396,6cyclictest9-21ksoftirqd/007:44:590
3130299396,11cyclictest9-21ksoftirqd/010:55:140
3130299394,4cyclictest9-21ksoftirqd/008:30:250
31302993936,2cyclictest9-21ksoftirqd/012:40:000
31302993935,2cyclictest9-21ksoftirqd/008:00:000
31302993934,3cyclictest9-21ksoftirqd/012:20:240
31302993934,3cyclictest9-21ksoftirqd/010:30:000
31302993934,3cyclictest9-21ksoftirqd/010:19:590
3130299391,3cyclictest121rcu_preempt09:10:280
31302993911,4cyclictest9-21ksoftirqd/007:50:240
3130299390,3cyclictest121rcu_preempt11:40:010
3130399381,29cyclictest23291-21timerwakeupswit07:55:271
3130399380,23cyclictest25291-21latency09:05:191
3130399380,1cyclictest0-21swapper/109:40:251
3130299386,7cyclictest9-21ksoftirqd/011:05:150
3130299386,5cyclictest9-21ksoftirqd/009:30:250
31302993827,4cyclictest9-21ksoftirqd/009:50:170
31302993824,4cyclictest9-21ksoftirqd/009:05:190
31302993812,4cyclictest9-21ksoftirqd/009:20:130
3130399370,1cyclictest0-21swapper/111:05:191
3130299376,4cyclictest9-21ksoftirqd/008:50:180
31302993732,3cyclictest9-21ksoftirqd/010:10:260
31302993732,3cyclictest9-21ksoftirqd/007:45:190
31302993730,4cyclictest9-21ksoftirqd/011:11:180
3130299371,3cyclictest9-21ksoftirqd/007:20:160
31302993712,6cyclictest9-21ksoftirqd/008:00:150
31302993710,3cyclictest9-21ksoftirqd/010:00:190
138491370,1ptp4l401ktimersoftd/309:10:163
31305993630,4cyclictest41-21ksoftirqd/312:36:543
31305993630,4cyclictest41-21ksoftirqd/310:33:463
31305993630,4cyclictest41-21ksoftirqd/310:17:033
31305993630,4cyclictest41-21ksoftirqd/309:57:163
31305993629,4cyclictest41-21ksoftirqd/307:27:083
31302993631,3cyclictest9-21ksoftirqd/011:35:010
31302993630,3cyclictest9-21ksoftirqd/012:10:150
31302993630,3cyclictest9-21ksoftirqd/007:30:260
3130299361,3cyclictest121rcu_preempt08:45:220
138491360,0ptp4l401ktimersoftd/311:19:553
31305993530,3cyclictest41-21ksoftirqd/307:50:483
31305993529,4cyclictest41-21ksoftirqd/312:14:403
31305993529,4cyclictest41-21ksoftirqd/309:48:093
31305993529,4cyclictest41-21ksoftirqd/309:01:353
31303993530,3cyclictest25-21ksoftirqd/108:26:491
31303993529,4cyclictest25-21ksoftirqd/112:20:521
31303993529,4cyclictest25-21ksoftirqd/110:54:141
31303993513,19cyclictest9507-21diskstats07:30:131
31302993531,2cyclictest9-21ksoftirqd/008:20:160
31302993530,3cyclictest9-21ksoftirqd/012:15:240
31302993530,3cyclictest9-21ksoftirqd/011:20:130
31302993530,3cyclictest9-21ksoftirqd/009:55:150
3130299351,3cyclictest121rcu_preempt09:25:120
31305993428,4cyclictest41-21ksoftirqd/312:18:213
31305993428,4cyclictest41-21ksoftirqd/307:23:233
31305993427,6cyclictest41-21ksoftirqd/309:05:113
3130399346,26cyclictest0-21swapper/108:00:441
31303993428,4cyclictest25-21ksoftirqd/109:55:571
31303993413,18cyclictest26671-21grep12:25:141
31303993411,20cyclictest16506-21cut11:00:001
31303993410,20cyclictest30763-21ls08:10:241
31305993328,3cyclictest41-21ksoftirqd/311:08:053
31305993327,4cyclictest41-21ksoftirqd/312:09:103
31305993327,4cyclictest41-21ksoftirqd/311:42:223
31305993327,4cyclictest41-21ksoftirqd/311:42:223
31305993327,4cyclictest41-21ksoftirqd/311:38:253
31305993327,4cyclictest41-21ksoftirqd/311:33:083
31305993327,4cyclictest41-21ksoftirqd/310:20:363
3130399339,21cyclictest6684-21cpuspeed09:35:131
3130399333,26cyclictest11973-21cpuspeed_turbos08:40:141
31303993327,4cyclictest25-21ksoftirqd/107:46:001
31303993326,4cyclictest25-21ksoftirqd/110:14:511
3130399331,30cyclictest31216-21latency_hist11:29:591
3130399330,3cyclictest10706-21mailstats10:45:241
138491330,0ptp4l401ktimersoftd/309:29:053
31305993227,3cyclictest41-21ksoftirqd/308:49:413
31305993226,4cyclictest41-21ksoftirqd/311:51:023
31305993226,4cyclictest41-21ksoftirqd/311:46:483
31305993226,4cyclictest41-21ksoftirqd/310:57:173
31305993226,4cyclictest41-21ksoftirqd/308:53:533
31305993225,4cyclictest41-21ksoftirqd/311:04:313
31303993227,3cyclictest25-21ksoftirqd/112:05:431
31303993226,4cyclictest25-21ksoftirqd/111:32:501
31303993226,4cyclictest25-21ksoftirqd/110:21:301
31303993210,19cyclictest32210-21latency12:35:191
3130399320,1cyclictest0-21swapper/109:50:161
138491320,0ptp4l401ktimersoftd/308:55:113
138491320,0ptp4l401ktimersoftd/308:35:263
31305993127,3cyclictest41-21ksoftirqd/311:24:553
31305993126,3cyclictest41-21ksoftirqd/310:00:543
31305993125,4cyclictest41-21ksoftirqd/311:14:223
31305993124,4cyclictest41-21ksoftirqd/307:47:433
3130399310,3cyclictest6476-21/usr/sbin/munin11:45:201
3130399310,1cyclictest0-21swapper/111:20:161
138491310,0ptp4l401ktimersoftd/308:00:033
138491310,0ptp4l401ktimersoftd/307:36:233
31305993026,2cyclictest41-21ksoftirqd/309:24:493
31305993025,3cyclictest41-21ksoftirqd/310:37:483
31305993025,3cyclictest41-21ksoftirqd/309:40:523
31305993025,3cyclictest41-21ksoftirqd/308:12:333
31305993024,4cyclictest41-21ksoftirqd/310:45:503
3130399303,23cyclictest1573-21/usr/sbin/munin10:30:241
31303993024,4cyclictest25-21ksoftirqd/110:15:521
31303993010,17cyclictest9155-21cstates11:50:131
3130399300,1cyclictest0-21swapper/110:05:001
138491300,0ptp4l401ktimersoftd/309:15:033
138491300,0ptp4l401ktimersoftd/308:27:583
31305992923,4cyclictest41-21ksoftirqd/312:01:243
31305992923,4cyclictest41-21ksoftirqd/307:57:063
3130399298,18cyclictest32611-21tail07:10:211
3130399297,20cyclictest21432-21cron09:00:001
3130399297,19cyclictest13316-21grep09:45:261
31303992923,4cyclictest25-21ksoftirqd/111:01:491
3130399291,25cyclictest21408-21apt-get10:05:121
138491290,0ptp4l401ktimersoftd/309:36:463
138491290,0ptp4l401ktimersoftd/308:34:253
138491290,0ptp4l401ktimersoftd/308:08:453
31305992823,3cyclictest41-21ksoftirqd/311:56:003
138491280,0ptp4l401ktimersoftd/312:23:513
31305992722,3cyclictest41-21ksoftirqd/312:26:093
31305992722,3cyclictest41-21ksoftirqd/310:07:263
31305992721,4cyclictest41-21ksoftirqd/307:34:113
31305992621,3cyclictest41-21ksoftirqd/312:31:333
31305992621,3cyclictest41-21ksoftirqd/311:28:553
31305992620,3cyclictest41-21ksoftirqd/309:32:463
138491260,0ptp4l401ktimersoftd/308:43:203
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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