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2026-05-22 - 21:52
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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 376 highest latencies:
System rackdslot2.osadl.org (updated Fri May 22, 2026 12:45:45)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
293812238172,22sleep00-21swapper/007:07:590
139591231168,51phc2sys0-21swapper/307:09:343
295362226163,22sleep20-21swapper/207:09:542
294542204172,21sleep10-21swapper/107:08:581
295462147121,14sleep10-21swapper/107:10:011
1392911050,0ptp4l391rcuc/307:50:243
1395918763,15phc2sys0-21swapper/307:10:013
2984199769,21cyclictest20196-21expr11:20:133
29839996925,10cyclictest25-21ksoftirqd/111:20:001
54832660,5sleep0217-21systemd-journal08:34:170
29839996422,10cyclictest25-21ksoftirqd/107:30:001
29839996127,3cyclictest25-21ksoftirqd/108:05:151
29839995722,4cyclictest25-21ksoftirqd/109:30:001
29839995720,6cyclictest25-21ksoftirqd/111:59:591
29838995625,3cyclictest9-21ksoftirqd/010:40:130
187392550,3sleep318745-21irqrtprio09:00:183
2984199543,48cyclictest1907-21turbostat09:35:003
29839995411,10cyclictest25-21ksoftirqd/108:15:261
29838995324,4cyclictest9-21ksoftirqd/012:20:150
29839995217,4cyclictest25-21ksoftirqd/107:40:011
29839995210,9cyclictest25-21ksoftirqd/111:05:191
29839995115,8cyclictest25-21ksoftirqd/112:20:151
2983899519,9cyclictest9-21ksoftirqd/008:15:180
2983899511,2cyclictest11572-21turbostat07:40:000
29838995020,6cyclictest9-21ksoftirqd/008:55:180
2983999491,44cyclictest25878-21systemctl12:40:001
29838994919,4cyclictest9-21ksoftirqd/007:45:160
29838994919,3cyclictest9-21ksoftirqd/007:40:130
29838994916,3cyclictest9-21ksoftirqd/012:30:210
29839994826,9cyclictest25-21ksoftirqd/107:40:011
29839994817,5cyclictest25-21ksoftirqd/111:40:281
29839994814,7cyclictest25-21ksoftirqd/110:55:171
29838994817,6cyclictest9-21ksoftirqd/009:35:000
29838994816,3cyclictest9-21ksoftirqd/012:10:240
2983899480,5cyclictest11228-21latency_hist12:09:590
2983999478,7cyclictest25-21ksoftirqd/110:20:141
2983999476,7cyclictest25-21ksoftirqd/111:10:121
29839994737,3cyclictest25-21ksoftirqd/112:20:011
29839994731,3cyclictest25-21ksoftirqd/107:15:261
29839994715,9cyclictest25-21ksoftirqd/112:25:121
29839994714,6cyclictest25-21ksoftirqd/109:00:181
29839994713,6cyclictest25-21ksoftirqd/109:35:141
2983999468,7cyclictest25-21ksoftirqd/108:45:121
2983999467,7cyclictest25-21ksoftirqd/108:50:171
2983999466,8cyclictest25-21ksoftirqd/109:30:111
2983999463,2cyclictest121rcu_preempt08:30:141
29839994615,9cyclictest25-21ksoftirqd/109:45:011
29839994614,5cyclictest25-21ksoftirqd/110:25:121
29839994612,9cyclictest25-21ksoftirqd/109:10:131
2983899469,3cyclictest9-21ksoftirqd/012:25:260
2983899468,4cyclictest9-21ksoftirqd/008:25:190
29838994617,7cyclictest9-21ksoftirqd/010:55:180
29838994616,3cyclictest9-21ksoftirqd/010:15:140
29838994612,4cyclictest9-21ksoftirqd/010:50:150
29838994610,3cyclictest9-21ksoftirqd/011:45:230
29838994610,3cyclictest9-21ksoftirqd/008:50:010
2983999453,2cyclictest25-21ksoftirqd/108:20:261
29839994526,4cyclictest25-21ksoftirqd/110:35:001
2983999452,2cyclictest121rcu_preempt11:40:001
2983999451,3cyclictest25-21ksoftirqd/111:00:231
2983899453,5cyclictest121rcu_preempt10:40:000
2983899451,6cyclictest9-21ksoftirqd/010:00:230
29838994511,4cyclictest9-21ksoftirqd/011:10:140
29838994511,4cyclictest9-21ksoftirqd/010:25:010
29838994511,4cyclictest9-21ksoftirqd/009:00:130
2983999448,5cyclictest25-21ksoftirqd/108:55:251
2983999444,6cyclictest121rcu_preempt10:45:261
2983999444,3cyclictest121rcu_preempt10:40:141
2983999443,4cyclictest25-21ksoftirqd/107:55:151
29839994429,4cyclictest25-21ksoftirqd/110:35:191
2983999442,3cyclictest25-21ksoftirqd/111:25:121
29839994411,7cyclictest25-21ksoftirqd/112:05:171
29838994433,3cyclictest9-21ksoftirqd/011:00:190
2983899442,3cyclictest4678-21kworker/0:207:20:130
29840994319,5cyclictest33-21ksoftirqd/209:35:202
29840994319,15cyclictest33-21ksoftirqd/212:15:242
29839994338,3cyclictest25-21ksoftirqd/110:00:001
29839994338,3cyclictest25-21ksoftirqd/109:20:001
29839994329,3cyclictest25-21ksoftirqd/110:20:011
2983999432,3cyclictest121rcu_preempt09:20:161
29839994323,9cyclictest25-21ksoftirqd/109:50:011
29839994316,4cyclictest25-21ksoftirqd/107:20:251
2983999431,3cyclictest25-21ksoftirqd/108:40:251
2983999430,2cyclictest25-21ksoftirqd/112:35:011
2983899433,2cyclictest121rcu_preempt10:35:000
29838994330,3cyclictest9-21ksoftirqd/010:10:000
29838994312,4cyclictest9-21ksoftirqd/011:35:160
2983899430,5cyclictest9-21ksoftirqd/011:20:240
2983899430,4cyclictest6412-21dump-pmu-power12:00:000
139291430,0ptp4l401ktimersoftd/309:42:123
139291430,0ptp4l401ktimersoftd/307:20:263
29840994230,9cyclictest33-21ksoftirqd/212:14:062
29840994230,4cyclictest33-21ksoftirqd/208:55:132
29840994221,15cyclictest33-21ksoftirqd/210:30:132
2983999427,6cyclictest25-21ksoftirqd/108:05:001
2983999423,3cyclictest121rcu_preempt11:30:141
2983999422,3cyclictest25-21ksoftirqd/110:10:131
2983999422,3cyclictest121rcu_preempt12:10:231
2983999422,2cyclictest121rcu_preempt12:05:001
29839994217,8cyclictest25-21ksoftirqd/108:10:151
2983999421,2cyclictest121rcu_preempt09:10:001
29838994230,3cyclictest9-21ksoftirqd/008:50:010
2983899421,3cyclictest16173-21sh12:20:010
29838994212,3cyclictest9-21ksoftirqd/011:15:110
29840994135,3cyclictest33-21ksoftirqd/212:40:012
29839994126,3cyclictest25-21ksoftirqd/110:00:141
2983999412,3cyclictest121rcu_preempt10:05:261
2983999412,3cyclictest121rcu_preempt07:45:151
29839994121,9cyclictest25-21ksoftirqd/107:30:261
2983999411,3cyclictest121rcu_preempt09:55:011
29839994111,8cyclictest25-21ksoftirqd/110:50:141
2983999410,3cyclictest121rcu_preempt11:45:191
2983899418,4cyclictest9-21ksoftirqd/007:15:010
29838994128,3cyclictest9-21ksoftirqd/011:25:120
29838994128,3cyclictest9-21ksoftirqd/009:20:160
2983899411,4cyclictest9-21ksoftirqd/009:40:160
29838994112,3cyclictest9-21ksoftirqd/010:10:210
2983899410,2cyclictest121rcu_preempt11:30:160
139291410,0ptp4l401ktimersoftd/309:16:443
29840994024,5cyclictest33-21ksoftirqd/209:35:002
2983999405,2cyclictest121rcu_preempt11:52:551
2983999404,3cyclictest25-21ksoftirqd/107:55:001
2983999402,3cyclictest121rcu_preempt08:35:231
2983999401,3cyclictest121rcu_preempt11:20:161
29838994036,2cyclictest9-21ksoftirqd/008:40:000
29838994034,3cyclictest9-21ksoftirqd/009:50:270
29838994027,5cyclictest9-21ksoftirqd/008:20:260
29841993934,3cyclictest23640-21wc10:20:113
29841993933,4cyclictest41-21ksoftirqd/312:28:483
29841993932,4cyclictest5553-21idleruntime-cro08:35:003
29841993931,5cyclictest41-21ksoftirqd/308:45:123
29840993934,3cyclictest33-21ksoftirqd/207:40:002
29840993933,3cyclictest33-21ksoftirqd/208:45:002
29839993934,3cyclictest25-21ksoftirqd/108:25:171
29838993927,3cyclictest9-21ksoftirqd/007:55:160
29838993926,3cyclictest9-21ksoftirqd/011:52:560
29838993923,3cyclictest9-21ksoftirqd/011:05:260
29838993922,4cyclictest9-21ksoftirqd/009:40:010
29841993832,4cyclictest41-21ksoftirqd/311:57:513
29841993832,4cyclictest41-21ksoftirqd/308:02:013
29840993835,2cyclictest33-21ksoftirqd/210:05:002
29840993833,3cyclictest33-21ksoftirqd/210:40:002
29840993833,3cyclictest11491-21cron09:55:012
29838993834,2cyclictest25163-21cpuspeed_turbos09:15:130
2983899383,3cyclictest121rcu_preempt08:10:250
29838993832,3cyclictest9-21ksoftirqd/007:50:140
29838993825,3cyclictest9-21ksoftirqd/011:45:010
29838993825,3cyclictest9-21ksoftirqd/007:25:120
29838993824,4cyclictest9-21ksoftirqd/009:57:220
2983899382,2cyclictest9-21ksoftirqd/007:30:230
29838993822,5cyclictest9-21ksoftirqd/008:05:250
29841993731,4cyclictest41-21ksoftirqd/310:49:433
29841993731,4cyclictest41-21ksoftirqd/308:38:363
29840993733,2cyclictest33-21ksoftirqd/210:45:262
29840993732,3cyclictest33-21ksoftirqd/207:30:182
29840993732,2cyclictest33-21ksoftirqd/208:50:012
2983899374,2cyclictest9-21ksoftirqd/012:00:210
29838993733,2cyclictest9-21ksoftirqd/009:45:130
29841993631,3cyclictest41-21ksoftirqd/310:50:343
29841993631,3cyclictest41-21ksoftirqd/308:25:423
29841993631,3cyclictest30698-21cron10:35:003
29841993630,4cyclictest41-21ksoftirqd/312:34:293
29841993630,4cyclictest41-21ksoftirqd/307:16:283
29840993632,3cyclictest33-21ksoftirqd/210:09:592
29840993631,3cyclictest33-21ksoftirqd/211:50:012
29840993631,3cyclictest33-21ksoftirqd/208:50:212
29840993631,3cyclictest33-21ksoftirqd/208:20:112
29840993630,4cyclictest33-21ksoftirqd/212:21:252
29840993630,4cyclictest33-21ksoftirqd/207:53:152
29840993630,4cyclictest33-21ksoftirqd/207:21:582
29840993620,5cyclictest33-21ksoftirqd/211:05:192
29840993619,5cyclictest33-21ksoftirqd/212:05:002
29840993615,14cyclictest33-21ksoftirqd/208:30:202
2983899368,3cyclictest9-21ksoftirqd/008:00:170
29838993630,4cyclictest9-21ksoftirqd/008:43:390
29838993625,3cyclictest9-21ksoftirqd/010:50:000
29838993610,4cyclictest9-21ksoftirqd/009:05:200
29841993530,3cyclictest41-21ksoftirqd/311:47:093
29841993529,4cyclictest41-21ksoftirqd/312:15:563
29841993529,4cyclictest41-21ksoftirqd/311:06:323
29841993529,4cyclictest41-21ksoftirqd/308:21:153
29841993529,4cyclictest41-21ksoftirqd/307:46:453
29841993529,4cyclictest41-21ksoftirqd/307:35:183
29840993531,3cyclictest33-21ksoftirqd/210:00:002
29840993531,2cyclictest33-21ksoftirqd/211:14:592
29840993530,3cyclictest33-21ksoftirqd/209:40:182
29840993530,3cyclictest33-21ksoftirqd/209:07:282
29840993530,3cyclictest33-21ksoftirqd/207:40:182
29840993530,3cyclictest33-21ksoftirqd/207:30:002
29840993529,4cyclictest33-21ksoftirqd/211:43:582
29840993529,4cyclictest33-21ksoftirqd/210:59:412
29840993529,4cyclictest33-21ksoftirqd/210:11:142
29840993529,3cyclictest33-21ksoftirqd/212:25:282
29840993529,3cyclictest33-21ksoftirqd/209:45:132
29840993519,5cyclictest33-21ksoftirqd/209:15:182
29838993531,2cyclictest9-21ksoftirqd/010:25:240
29838993531,2cyclictest9-21ksoftirqd/009:25:230
29838993530,2cyclictest9-21ksoftirqd/012:35:170
2983899351,3cyclictest9-21ksoftirqd/007:15:180
29841993429,3cyclictest41-21ksoftirqd/311:40:133
29841993429,3cyclictest41-21ksoftirqd/311:17:183
29841993429,3cyclictest41-21ksoftirqd/310:35:473
29841993429,3cyclictest41-21ksoftirqd/310:16:203
29841993429,3cyclictest41-21ksoftirqd/308:10:133
29841993429,3cyclictest16843-21fschecks_count12:20:143
29841993428,4cyclictest41-21ksoftirqd/312:35:223
29841993428,4cyclictest41-21ksoftirqd/312:10:593
29841993428,4cyclictest41-21ksoftirqd/310:27:403
29841993428,4cyclictest41-21ksoftirqd/310:03:133
29841993428,4cyclictest41-21ksoftirqd/309:59:003
29841993428,4cyclictest41-21ksoftirqd/308:50:523
29841993410,21cyclictest17689-21latency_hist09:00:003
29840993430,3cyclictest33-21ksoftirqd/208:05:212
29840993429,3cyclictest33-21ksoftirqd/212:07:172
29840993429,3cyclictest33-21ksoftirqd/211:54:552
29840993429,3cyclictest33-21ksoftirqd/210:17:002
29840993428,4cyclictest33-21ksoftirqd/209:02:352
29840993428,3cyclictest33-21ksoftirqd/211:05:012
29840993427,4cyclictest33-21ksoftirqd/210:52:382
29840993418,5cyclictest33-21ksoftirqd/210:25:012
29841993328,3cyclictest41-21ksoftirqd/309:21:103
29841993328,3cyclictest41-21ksoftirqd/307:32:093
29841993313,17cyclictest9034-21/usr/sbin/munin12:05:153
2984199330,3cyclictest16651-21cpuspeed_turbos10:05:133
29840993329,3cyclictest33-21ksoftirqd/208:10:192
29840993329,2cyclictest33-21ksoftirqd/207:47:132
29840993329,2cyclictest33-21ksoftirqd/207:17:082
29840993328,3cyclictest33-21ksoftirqd/209:20:172
29840993328,3cyclictest33-21ksoftirqd/208:40:002
29840993327,4cyclictest33-21ksoftirqd/212:30:472
29840993327,3cyclictest33-21ksoftirqd/208:00:012
29840993314,9cyclictest33-21ksoftirqd/211:30:162
29840993311,15cyclictest33-21ksoftirqd/211:15:192
29838993329,3cyclictest9-21ksoftirqd/009:10:180
139291330,15ptp4l2984199cyclictest07:40:253
29841993227,3cyclictest41-21ksoftirqd/308:19:233
29841993227,3cyclictest41-21ksoftirqd/307:59:383
29841993227,3cyclictest41-21ksoftirqd/307:28:093
29841993226,4cyclictest41-21ksoftirqd/309:05:483
29841993226,3cyclictest41-21ksoftirqd/309:15:003
29841993213,17cyclictest28635-21timedrift11:35:263
29840993227,3cyclictest33-21ksoftirqd/208:26:222
29840993226,4cyclictest33-21ksoftirqd/211:37:002
29840993226,4cyclictest33-21ksoftirqd/211:26:042
29840993226,4cyclictest33-21ksoftirqd/209:28:062
29840993226,4cyclictest33-21ksoftirqd/209:14:062
29840993221,9cyclictest33-21ksoftirqd/210:40:252
29840993217,5cyclictest33-21ksoftirqd/211:20:242
2984199318,20cyclictest3104-21phc2sys11:50:223
2984199318,20cyclictest24721-21sed08:05:213
29841993126,3cyclictest41-21ksoftirqd/310:58:213
29841993126,3cyclictest41-21ksoftirqd/309:40:003
29841993125,4cyclictest41-21ksoftirqd/310:10:313
29841993125,4cyclictest41-21ksoftirqd/309:51:093
2984199310,3cyclictest217-21systemd-journal11:05:013
2984199310,3cyclictest15390-21cpuspeed_turbos11:10:133
29840993126,3cyclictest33-21ksoftirqd/210:30:002
29840993126,3cyclictest33-21ksoftirqd/208:05:002
29841993026,3cyclictest41-21ksoftirqd/311:25:073
29841993025,3cyclictest41-21ksoftirqd/312:04:543
29841993025,3cyclictest41-21ksoftirqd/310:41:553
29841993025,3cyclictest41-21ksoftirqd/309:25:353
2984199300,3cyclictest25797-21meminfo11:30:213
29840992925,3cyclictest33-21ksoftirqd/207:10:182
29840992924,3cyclictest33-21ksoftirqd/211:56:452
29840992924,3cyclictest33-21ksoftirqd/208:15:302
29841992823,3cyclictest41-21ksoftirqd/309:45:183
2984199260,5cyclictest10314-21latency_hist08:45:013
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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