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2026-07-08 - 17:46
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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 rackdslot3.osadl.org (updated Wed Jul 08, 2026 12:45:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
13222208175,21sleep10-21swapper/107:05:461
139491205171,23phc2sys0-21swapper/307:08:303
14602204171,22sleep20-21swapper/207:07:232
319382201168,22sleep00-21swapper/007:05:040
16752163125,13sleep20-21swapper/207:10:012
139491163124,13phc2sys0-21swapper/307:10:013
2605921530,7sleep1196899cyclictest10:15:001
1969997116,53cyclictest1559-21kworker/2:112:30:132
196999702,65cyclictest11027-21kworker/2:108:10:332
287472650,6sleep2196999cyclictest12:35:132
240642630,2sleep20-21swapper/212:25:152
139391610,1ptp4l401ktimersoftd/307:55:183
156332550,2sleep10-21swapper/111:00:131
142302550,2sleep20-21swapper/210:55:252
139391550,1ptp4l401ktimersoftd/311:02:173
196999491,45cyclictest0-21swapper/211:50:232
1969994617,27cyclictest0-21swapper/207:30:232
196899464,9cyclictest25-21ksoftirqd/112:20:261
196899455,3cyclictest25-21ksoftirqd/112:30:181
196999443,39cyclictest18545-21ls12:15:012
1967994415,3cyclictest121rcu_preempt10:13:030
1970994327,4cyclictest41-21ksoftirqd/307:35:243
196999430,2cyclictest0-21swapper/208:55:232
196799438,4cyclictest9-21ksoftirqd/008:40:000
139391430,3ptp4l16357-21ls08:45:203
139391430,0ptp4l401ktimersoftd/311:59:423
139391430,0ptp4l401ktimersoftd/308:05:113
139391430,0ptp4l401ktimersoftd/307:50:063
1969994237,3cyclictest23346-21cron12:25:012
1969994228,11cyclictest8932-21cron07:25:002
139391420,0ptp4l401ktimersoftd/310:15:513
196899419,3cyclictest25-21ksoftirqd/111:05:261
1967994135,3cyclictest9-21ksoftirqd/009:19:590
1967994135,3cyclictest9-21ksoftirqd/009:19:590
1967994134,4cyclictest8937-21idleruntime-cro07:25:000
1967994125,6cyclictest9-21ksoftirqd/009:00:250
139391410,0ptp4l401ktimersoftd/311:45:203
139391410,0ptp4l401ktimersoftd/311:45:203
139391410,0ptp4l401ktimersoftd/309:19:233
139391410,0ptp4l401ktimersoftd/309:19:233
1970994035,3cyclictest12638-21cron10:55:013
196899401,9cyclictest25-21ksoftirqd/108:30:231
196899401,4cyclictest25-21ksoftirqd/107:35:241
196899401,3cyclictest121rcu_preempt11:00:001
1967994025,5cyclictest9-21ksoftirqd/010:55:270
1967994025,5cyclictest9-21ksoftirqd/009:30:220
1967994024,5cyclictest9-21ksoftirqd/007:50:170
1967994024,5cyclictest9-21ksoftirqd/007:35:140
196799401,3cyclictest121rcu_preempt12:10:250
139391400,0ptp4l401ktimersoftd/311:20:223
196899394,3cyclictest25-21ksoftirqd/112:00:171
1968993935,2cyclictest25-21ksoftirqd/112:20:001
1968993935,2cyclictest25-21ksoftirqd/112:20:001
1968993927,4cyclictest25-21ksoftirqd/109:30:011
196899391,6cyclictest25-21ksoftirqd/111:40:001
1967993924,5cyclictest9-21ksoftirqd/012:25:130
1967993924,5cyclictest9-21ksoftirqd/010:25:270
1967993924,5cyclictest9-21ksoftirqd/008:15:160
1967993924,4cyclictest9-21ksoftirqd/011:45:150
1967993924,4cyclictest9-21ksoftirqd/011:45:150
1967993923,6cyclictest9-21ksoftirqd/011:55:220
1967993923,6cyclictest9-21ksoftirqd/009:55:240
1967993923,5cyclictest9-21ksoftirqd/011:15:230
1970993831,5cyclictest41-21ksoftirqd/310:12:183
1969993812,23cyclictest17434-21latency_hist11:05:002
1968993834,2cyclictest25-21ksoftirqd/108:49:591
196799384,3cyclictest121rcu_preempt10:20:180
1967993833,3cyclictest9-21ksoftirqd/012:00:130
1967993826,3cyclictest9-21ksoftirqd/009:20:360
1967993824,5cyclictest9-21ksoftirqd/011:25:190
1967993824,5cyclictest9-21ksoftirqd/008:50:240
1967993824,3cyclictest9-21ksoftirqd/009:45:230
1967993823,5cyclictest9-21ksoftirqd/012:35:150
1967993823,5cyclictest9-21ksoftirqd/012:30:220
1967993823,5cyclictest9-21ksoftirqd/011:50:220
1967993823,5cyclictest9-21ksoftirqd/010:50:210
1967993823,5cyclictest9-21ksoftirqd/009:35:180
1967993823,5cyclictest9-21ksoftirqd/008:40:140
1967993823,5cyclictest9-21ksoftirqd/008:30:200
1967993823,5cyclictest9-21ksoftirqd/007:55:190
1967993823,3cyclictest9-21ksoftirqd/008:05:110
1967993822,6cyclictest9-21ksoftirqd/009:25:220
1967993822,6cyclictest9-21ksoftirqd/008:10:140
1967993822,5cyclictest9-21ksoftirqd/010:45:210
1967993822,5cyclictest9-21ksoftirqd/010:45:210
1967993822,5cyclictest9-21ksoftirqd/009:40:420
1967993822,5cyclictest9-21ksoftirqd/007:40:180
1967993820,6cyclictest9-21ksoftirqd/011:02:390
197099375,6cyclictest41-21ksoftirqd/308:55:293
1970993734,2cyclictest41-21ksoftirqd/308:35:003
197099373,3cyclictest41-21ksoftirqd/311:00:003
1970993731,3cyclictest41-21ksoftirqd/310:05:003
1970993720,8cyclictest41-21ksoftirqd/310:45:243
1970993720,8cyclictest41-21ksoftirqd/310:45:243
1969993713,21cyclictest9685-21munin-node10:45:082
1969993713,21cyclictest9685-21munin-node10:45:082
196899376,3cyclictest121rcu_preempt08:20:181
196899376,3cyclictest121rcu_preempt08:00:121
1968993733,2cyclictest25-21ksoftirqd/108:30:011
1968993733,2cyclictest25-21ksoftirqd/108:00:001
196899373,2cyclictest121rcu_preempt12:05:241
1968993732,3cyclictest25-21ksoftirqd/111:15:151
1968993732,3cyclictest25-21ksoftirqd/109:15:011
1968993732,2cyclictest25-21ksoftirqd/110:35:111
1968993731,3cyclictest1317-21runrttasks11:14:201
196899372,4cyclictest25-21ksoftirqd/108:50:231
196899370,2cyclictest121rcu_preempt09:20:361
1967993732,3cyclictest9-21ksoftirqd/010:20:010
1967993732,3cyclictest9-21ksoftirqd/007:35:000
1967993730,5cyclictest9-21ksoftirqd/009:09:160
1967993725,3cyclictest9-21ksoftirqd/011:30:180
1967993723,5cyclictest9-21ksoftirqd/011:40:250
1967993723,5cyclictest9-21ksoftirqd/011:35:230
1967993723,5cyclictest9-21ksoftirqd/011:20:240
1967993723,5cyclictest9-21ksoftirqd/010:35:210
1967993722,5cyclictest9-21ksoftirqd/011:10:230
1967993722,5cyclictest9-21ksoftirqd/009:10:160
1967993722,5cyclictest9-21ksoftirqd/008:20:230
1967993721,5cyclictest9-21ksoftirqd/012:20:210
1967993721,5cyclictest9-21ksoftirqd/008:45:210
1967993720,4cyclictest9-21ksoftirqd/010:05:240
1970993631,3cyclictest41-21ksoftirqd/310:45:003
1970993630,3cyclictest41-21ksoftirqd/312:15:133
1970993630,3cyclictest41-21ksoftirqd/312:15:133
197099361,32cyclictest28341-21wc12:35:123
1969993631,3cyclictest33-21ksoftirqd/209:53:582
196899363,3cyclictest121rcu_preempt11:25:201
196899363,3cyclictest121rcu_preempt09:55:241
196899363,3cyclictest121rcu_preempt09:00:251
1968993632,3cyclictest25-21ksoftirqd/107:25:011
1968993632,2cyclictest25-21ksoftirqd/109:50:131
1968993631,3cyclictest25-21ksoftirqd/111:50:151
1968993631,3cyclictest25-21ksoftirqd/111:20:271
1968993631,3cyclictest25-21ksoftirqd/109:46:481
1968993630,4cyclictest25-21ksoftirqd/107:48:501
1968993630,4cyclictest25-21ksoftirqd/107:48:501
1968993630,3cyclictest25-21ksoftirqd/109:05:251
196899362,3cyclictest121rcu_preempt08:05:211
196899362,2cyclictest121rcu_preempt12:10:211
196899361,3cyclictest121rcu_preempt12:25:121
196899361,3cyclictest121rcu_preempt11:45:161
196899361,3cyclictest121rcu_preempt11:45:161
1967993622,6cyclictest9-21ksoftirqd/008:55:180
1967993622,5cyclictest9-21ksoftirqd/009:50:160
1967993622,5cyclictest9-21ksoftirqd/007:25:210
1967993622,5cyclictest9-21ksoftirqd/007:15:250
1967993622,3cyclictest9-21ksoftirqd/012:05:190
1967993621,5cyclictest9-21ksoftirqd/010:30:160
1967993620,5cyclictest9-21ksoftirqd/008:00:020
1967993619,8cyclictest9-21ksoftirqd/011:05:150
139391360,14ptp4l401ktimersoftd/310:05:133
1970993532,2cyclictest41-21ksoftirqd/307:20:003
1970993531,3cyclictest41-21ksoftirqd/312:00:183
1970993531,2cyclictest41-21ksoftirqd/309:00:253
1970993530,3cyclictest41-21ksoftirqd/312:30:133
1970993530,3cyclictest41-21ksoftirqd/312:09:593
1970993530,3cyclictest41-21ksoftirqd/311:30:133
1970993530,3cyclictest41-21ksoftirqd/310:00:013
1970993530,3cyclictest41-21ksoftirqd/308:25:013
1970993530,3cyclictest41-21ksoftirqd/307:45:003
1970993530,3cyclictest41-21ksoftirqd/307:20:133
1970993529,4cyclictest41-21ksoftirqd/308:16:323
1970993523,10cyclictest41-21ksoftirqd/311:06:283
1969993529,4cyclictest33-21ksoftirqd/209:59:002
1969993529,4cyclictest33-21ksoftirqd/209:08:502
1969993529,4cyclictest33-21ksoftirqd/208:10:002
1969993529,4cyclictest33-21ksoftirqd/208:02:232
1969993513,20cyclictest30715-21awk11:30:202
1969993511,4cyclictest21055-21latency_hist10:04:592
196899354,2cyclictest121rcu_preempt10:25:181
196899354,2cyclictest121rcu_preempt07:50:171
196899353,3cyclictest121rcu_preempt11:55:221
1968993531,3cyclictest25-21ksoftirqd/107:45:001
1968993531,2cyclictest25-21ksoftirqd/108:35:141
1968993531,2cyclictest25-21ksoftirqd/108:10:141
1968993530,3cyclictest25-21ksoftirqd/110:30:171
1968993530,3cyclictest25-21ksoftirqd/107:20:011
1968993529,4cyclictest25-21ksoftirqd/110:46:221
1968993529,4cyclictest25-21ksoftirqd/110:46:221
1968993529,4cyclictest25-21ksoftirqd/110:05:581
196899352,3cyclictest121rcu_preempt11:40:261
196899352,3cyclictest121rcu_preempt08:40:231
196899352,2cyclictest121rcu_preempt09:30:021
1968993521,3cyclictest25-21ksoftirqd/110:50:251
196899351,4cyclictest25-21ksoftirqd/108:55:191
196899350,8cyclictest25-21ksoftirqd/110:20:191
1967993529,3cyclictest9-21ksoftirqd/008:25:250
1967993523,5cyclictest9-21ksoftirqd/007:45:210
1967993523,5cyclictest9-21ksoftirqd/007:45:210
1967993523,3cyclictest9-21ksoftirqd/007:10:250
1967993520,5cyclictest9-21ksoftirqd/012:15:260
1967993520,5cyclictest9-21ksoftirqd/012:15:260
139391350,0ptp4l401ktimersoftd/309:36:143
197099343,3cyclictest41-21ksoftirqd/309:50:013
1970993429,3cyclictest41-21ksoftirqd/311:40:203
1970993429,3cyclictest41-21ksoftirqd/311:35:123
1970993429,3cyclictest41-21ksoftirqd/308:01:203
1970993428,4cyclictest41-21ksoftirqd/309:29:093
1970993428,4cyclictest41-21ksoftirqd/307:31:113
1969993429,3cyclictest33-21ksoftirqd/207:43:132
1969993428,4cyclictest33-21ksoftirqd/207:15:372
1969993410,3cyclictest1775-21cut11:39:592
196899346,10cyclictest121rcu_preempt07:10:241
196899345,3cyclictest121rcu_preempt09:40:411
196899344,9cyclictest25-21ksoftirqd/107:35:001
196899344,3cyclictest121rcu_preempt11:30:121
1968993430,2cyclictest25-21ksoftirqd/109:35:131
1968993429,3cyclictest25-21ksoftirqd/112:35:121
1968993429,3cyclictest25-21ksoftirqd/110:42:351
1968993428,4cyclictest25-21ksoftirqd/108:16:101
196899342,2cyclictest121rcu_preempt07:25:241
1967993430,2cyclictest9-21ksoftirqd/010:04:590
197099334,2cyclictest121rcu_preempt07:25:153
1970993329,2cyclictest41-21ksoftirqd/308:35:183
1970993328,3cyclictest41-21ksoftirqd/310:33:163
1970993328,3cyclictest41-21ksoftirqd/309:10:103
1970993327,4cyclictest41-21ksoftirqd/311:25:033
1970993327,4cyclictest41-21ksoftirqd/307:49:523
1970993327,4cyclictest41-21ksoftirqd/307:49:523
1970993320,10cyclictest41-21ksoftirqd/309:50:243
196999339,3cyclictest32579-21if_enp1s009:20:162
1969993328,3cyclictest33-21ksoftirqd/211:22:122
1969993328,3cyclictest33-21ksoftirqd/210:28:132
1969993328,3cyclictest33-21ksoftirqd/208:36:152
1969993327,4cyclictest33-21ksoftirqd/211:49:482
1969993327,4cyclictest33-21ksoftirqd/211:49:482
1969993327,4cyclictest33-21ksoftirqd/210:23:522
1969993327,4cyclictest33-21ksoftirqd/209:16:032
1969993327,4cyclictest33-21ksoftirqd/209:16:032
1969993327,4cyclictest33-21ksoftirqd/208:31:392
1969993313,3cyclictest11999-21sed10:50:252
1969993311,3cyclictest17629-21/usr/sbin/munin11:05:132
196999330,4cyclictest8100-21cat08:30:002
196999330,4cyclictest23424-21cron07:55:002
1968993329,3cyclictest25-21ksoftirqd/109:16:141
1968993329,3cyclictest25-21ksoftirqd/109:16:141
1968993329,2cyclictest25-21ksoftirqd/110:15:141
1970993226,4cyclictest41-21ksoftirqd/311:51:313
1970993226,4cyclictest41-21ksoftirqd/309:08:113
1970993225,5cyclictest41-21ksoftirqd/310:23:363
1970993221,9cyclictest41-21ksoftirqd/309:40:363
197099321,6cyclictest41-21ksoftirqd/310:25:143
197099321,6cyclictest41-21ksoftirqd/308:15:003
197099320,2cyclictest121rcu_preempt12:25:223
196999329,4cyclictest13611-21seq09:46:552
196999323,28cyclictest26349-21kworker/2:010:42:202
1969993228,3cyclictest33-21ksoftirqd/209:40:132
1969993227,3cyclictest33-21ksoftirqd/207:37:402
1969993227,3cyclictest33-21ksoftirqd/207:28:052
1969993226,4cyclictest33-21ksoftirqd/212:03:322
1969993226,4cyclictest33-21ksoftirqd/211:57:182
1969993226,4cyclictest33-21ksoftirqd/210:34:032
1969993226,4cyclictest33-21ksoftirqd/208:53:382
1969993226,4cyclictest33-21ksoftirqd/208:43:112
1969993226,4cyclictest33-21ksoftirqd/208:22:562
196999321,13cyclictest14867-21meminfo12:05:202
196999321,11cyclictest29369-21cron09:14:592
196899324,3cyclictest121rcu_preempt10:04:261
1967993220,5cyclictest9-21ksoftirqd/010:40:130
1970993127,3cyclictest41-21ksoftirqd/311:10:183
1970993127,3cyclictest41-21ksoftirqd/308:50:193
1970993127,2cyclictest41-21ksoftirqd/310:35:123
1970993126,3cyclictest41-21ksoftirqd/311:18:263
1970993125,4cyclictest41-21ksoftirqd/312:21:023
1970993125,4cyclictest41-21ksoftirqd/309:30:413
197099311,3cyclictest121rcu_preempt08:25:143
1969993126,3cyclictest33-21ksoftirqd/211:43:582
1969993110,3cyclictest24183-21df_abs10:10:162
197099301,5cyclictest41-21ksoftirqd/309:20:213
197099300,6cyclictest41-21ksoftirqd/308:40:233
196999303,26cyclictest1559-21kworker/2:112:15:542
196999303,26cyclictest1559-21kworker/2:112:15:542
1969993025,3cyclictest33-21ksoftirqd/208:17:322
1969993024,4cyclictest33-21ksoftirqd/210:06:032
1970992924,3cyclictest41-21ksoftirqd/312:15:003
196999293,25cyclictest14819-21kworker/2:211:11:102
1969992925,2cyclictest33-21ksoftirqd/207:57:152
1969992923,4cyclictest33-21ksoftirqd/210:19:072
196999292,26cyclictest26349-21kworker/2:010:37:242
196999292,25cyclictest14819-21kworker/2:211:15:012
196999291,27cyclictest0-21swapper/211:25:232
196999286,20cyclictest20872-21kworker/2:209:33:332
196999283,24cyclictest20872-21kworker/2:209:02:532
196999283,23cyclictest11027-21kworker/2:107:47:172
196999283,23cyclictest11027-21kworker/2:107:47:172
1969992823,3cyclictest33-21ksoftirqd/208:49:512
196999262,23cyclictest20872-21kworker/2:209:26:532
1969992520,3cyclictest33-21ksoftirqd/209:37:072
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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