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2026-04-06 - 12:09
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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 Mon Apr 06, 2026 00:45:44)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
288802225160,22sleep10-21swapper/119:05:571
139491206173,22phc2sys0-21swapper/319:07:593
291252205172,22sleep00-21swapper/019:09:110
290602204171,22sleep20-21swapper/219:08:202
703921430,5sleep02948299cyclictest22:50:250
206652750,5sleep233-21ksoftirqd/222:15:132
275372650,6sleep02948299cyclictest21:20:190
275372650,6sleep02948299cyclictest21:20:190
139391620,1ptp4l401ktimersoftd/319:30:173
29483995017,4cyclictest25-21ksoftirqd/120:05:001
29483994918,4cyclictest25-21ksoftirqd/119:15:001
29483994918,4cyclictest25-21ksoftirqd/100:40:001
29483994817,4cyclictest25-21ksoftirqd/121:00:151
29483994817,4cyclictest25-21ksoftirqd/119:40:211
2948499474,4cyclictest33-21ksoftirqd/222:40:182
29483994718,3cyclictest25-21ksoftirqd/123:45:211
29483994717,3cyclictest25-21ksoftirqd/100:09:281
29483994717,3cyclictest25-21ksoftirqd/100:09:281
29483994715,4cyclictest25-21ksoftirqd/121:30:231
56062460,1sleep10-21swapper/121:40:261
29483994618,7cyclictest25-21ksoftirqd/123:20:011
57898450,7rtkit-daemon0-21swapper/019:36:580
2948399459,4cyclictest25-21ksoftirqd/120:25:241
2948399458,8cyclictest25-21ksoftirqd/120:35:001
29483994516,7cyclictest25-21ksoftirqd/122:55:211
29483994513,4cyclictest25-21ksoftirqd/123:50:181
29483994512,4cyclictest25-21ksoftirqd/100:35:001
2948499442,39cyclictest18036-21cron22:09:592
2948499442,2cyclictest121rcu_preempt00:05:172
2948499442,2cyclictest121rcu_preempt00:05:172
2948399449,4cyclictest25-21ksoftirqd/120:35:201
2948399449,4cyclictest25-21ksoftirqd/119:30:001
2948399442,8cyclictest25-21ksoftirqd/121:10:161
29483994416,7cyclictest25-21ksoftirqd/121:05:131
2948599431,3cyclictest41-21ksoftirqd/322:25:253
2948499431,5cyclictest33-21ksoftirqd/223:40:152
2948399437,8cyclictest25-21ksoftirqd/100:15:261
29483994333,3cyclictest25-21ksoftirqd/122:25:001
29483994324,7cyclictest25-21ksoftirqd/122:34:351
29483994316,7cyclictest25-21ksoftirqd/122:05:191
29483994316,7cyclictest25-21ksoftirqd/120:45:131
29483994312,3cyclictest25-21ksoftirqd/122:00:231
139391430,0ptp4l401ktimersoftd/322:49:213
139391430,0ptp4l401ktimersoftd/300:11:533
29485994230,2cyclictest41-21ksoftirqd/320:55:253
2948399427,5cyclictest25-21ksoftirqd/100:20:231
2948399427,4cyclictest25-21ksoftirqd/119:35:241
2948399422,8cyclictest25-21ksoftirqd/121:35:161
2948399422,8cyclictest25-21ksoftirqd/100:10:201
2948399421,8cyclictest25-21ksoftirqd/119:15:171
29483994211,8cyclictest25-21ksoftirqd/119:55:181
139391420,0ptp4l401ktimersoftd/321:04:593
2948599416,3cyclictest41-21ksoftirqd/319:35:223
2948599413,9cyclictest41-21ksoftirqd/322:00:223
29485994136,3cyclictest391rcuc/323:10:123
29484994128,11cyclictest33-21ksoftirqd/220:05:012
2948399418,8cyclictest25-21ksoftirqd/119:30:131
2948399417,4cyclictest25-21ksoftirqd/100:00:171
2948399415,9cyclictest25-21ksoftirqd/121:25:261
2948399414,8cyclictest25-21ksoftirqd/119:20:161
29483994118,7cyclictest25-21ksoftirqd/123:25:161
29483994116,8cyclictest25-21ksoftirqd/119:50:141
2948599406,3cyclictest121rcu_preempt00:20:143
2948599405,3cyclictest41-21ksoftirqd/322:55:133
29484994035,3cyclictest33-21ksoftirqd/223:00:002
29484994032,5cyclictest33-21ksoftirqd/200:35:002
29484994028,3cyclictest33-21ksoftirqd/223:15:152
29484994024,6cyclictest33-21ksoftirqd/222:10:142
29484994024,5cyclictest33-21ksoftirqd/222:50:122
2948399405,8cyclictest25-21ksoftirqd/120:10:131
2948399404,9cyclictest25-21ksoftirqd/123:40:221
2948399404,8cyclictest25-21ksoftirqd/121:50:151
2948399404,7cyclictest25-21ksoftirqd/123:05:211
2948399403,8cyclictest25-21ksoftirqd/122:35:171
29483994034,3cyclictest25-21ksoftirqd/122:55:001
2948399402,9cyclictest25-21ksoftirqd/121:20:271
2948399402,9cyclictest25-21ksoftirqd/121:20:271
29483994014,4cyclictest25-21ksoftirqd/121:55:171
29483994013,7cyclictest25-21ksoftirqd/119:45:171
29485993934,3cyclictest41-21ksoftirqd/321:40:003
2948599392,3cyclictest41-21ksoftirqd/323:50:003
2948599392,3cyclictest41-21ksoftirqd/323:05:133
29484993925,5cyclictest33-21ksoftirqd/223:50:222
2948399397,7cyclictest25-21ksoftirqd/122:40:181
2948399395,3cyclictest121rcu_preempt00:25:151
2948399391,7cyclictest25-21ksoftirqd/120:15:171
29483993910,8cyclictest25-21ksoftirqd/120:50:161
2948399390,8cyclictest25-21ksoftirqd/122:20:011
2948399390,2cyclictest21785-21cron23:25:001
134391390,1getstats0-21swapper/322:21:433
2948599382,3cyclictest121rcu_preempt22:10:153
29485993823,4cyclictest41-21ksoftirqd/322:30:203
29484993833,3cyclictest33-21ksoftirqd/223:35:192
29484993833,3cyclictest33-21ksoftirqd/220:00:002
29484993832,3cyclictest33-21ksoftirqd/223:10:132
29484993824,5cyclictest33-21ksoftirqd/200:15:012
29484993823,6cyclictest33-21ksoftirqd/221:55:122
29484993823,5cyclictest33-21ksoftirqd/219:30:242
2948399389,5cyclictest25-21ksoftirqd/123:56:361
2948399387,7cyclictest25-21ksoftirqd/120:05:201
2948399387,6cyclictest25-21ksoftirqd/120:55:231
2948399385,2cyclictest121rcu_preempt23:30:231
2948399384,7cyclictest25-21ksoftirqd/121:15:261
29483993834,2cyclictest25-21ksoftirqd/120:20:171
139391380,0ptp4l401ktimersoftd/320:25:183
2948599375,3cyclictest121rcu_preempt22:50:233
2948599375,3cyclictest121rcu_preempt00:25:133
2948599374,3cyclictest121rcu_preempt00:00:243
2948599373,3cyclictest121rcu_preempt00:35:193
29485993732,3cyclictest41-21ksoftirqd/323:25:003
29485993732,3cyclictest41-21ksoftirqd/322:39:593
29485993732,3cyclictest41-21ksoftirqd/320:00:123
29485993731,4cyclictest41-21ksoftirqd/323:31:393
2948599372,3cyclictest121rcu_preempt20:15:193
2948599370,3cyclictest121rcu_preempt19:15:243
29484993732,3cyclictest33-21ksoftirqd/221:30:002
29484993732,3cyclictest33-21ksoftirqd/220:35:282
29484993724,5cyclictest33-21ksoftirqd/222:25:132
29484993724,3cyclictest33-21ksoftirqd/220:20:012
29484993723,3cyclictest33-21ksoftirqd/222:35:012
29484993723,3cyclictest33-21ksoftirqd/220:10:012
29484993722,5cyclictest33-21ksoftirqd/200:20:242
29484993721,6cyclictest33-21ksoftirqd/219:35:242
29484993721,5cyclictest33-21ksoftirqd/221:50:012
29484993719,10cyclictest33-21ksoftirqd/221:50:132
29483993732,3cyclictest25-21ksoftirqd/123:10:161
29483993732,3cyclictest25-21ksoftirqd/122:25:001
29483993731,3cyclictest25-21ksoftirqd/123:35:121
2948599364,3cyclictest121rcu_preempt20:05:123
2948599364,3cyclictest121rcu_preempt00:00:003
2948599363,3cyclictest121rcu_preempt21:05:253
29485993632,2cyclictest41-21ksoftirqd/320:40:003
29485993632,2cyclictest41-21ksoftirqd/300:30:183
29485993631,3cyclictest9984-21cron20:45:003
29485993631,3cyclictest41-21ksoftirqd/321:30:003
2948599362,3cyclictest121rcu_preempt23:35:173
29484993632,2cyclictest33-21ksoftirqd/221:10:132
29484993632,2cyclictest33-21ksoftirqd/200:05:002
29484993631,3cyclictest33-21ksoftirqd/223:05:242
29484993631,3cyclictest33-21ksoftirqd/221:20:142
29484993631,3cyclictest33-21ksoftirqd/221:20:142
29484993623,5cyclictest33-21ksoftirqd/222:20:172
29484993623,5cyclictest33-21ksoftirqd/219:25:142
29484993622,3cyclictest33-21ksoftirqd/223:25:242
29484993621,5cyclictest33-21ksoftirqd/223:20:222
29484993621,5cyclictest33-21ksoftirqd/222:30:252
29484993621,5cyclictest33-21ksoftirqd/200:25:182
29484993618,5cyclictest33-21ksoftirqd/220:45:162
2948499360,15cyclictest121rcu_preempt19:10:122
2948399364,2cyclictest121rcu_preempt20:40:131
29483993631,2cyclictest25-21ksoftirqd/121:45:191
139391360,0ptp4l401ktimersoftd/319:29:553
2948599355,4cyclictest121rcu_preempt21:45:143
2948599355,3cyclictest121rcu_preempt19:50:243
2948599354,3cyclictest121rcu_preempt21:15:263
2948599353,3cyclictest121rcu_preempt19:40:203
29485993532,2cyclictest41-21ksoftirqd/300:20:013
29485993531,3cyclictest41-21ksoftirqd/323:20:013
29485993530,3cyclictest41-21ksoftirqd/323:45:003
29485993530,3cyclictest41-21ksoftirqd/319:20:153
29485993529,4cyclictest41-21ksoftirqd/320:24:053
29485993521,3cyclictest41-21ksoftirqd/323:25:143
29484993530,3cyclictest33-21ksoftirqd/222:00:172
29484993530,3cyclictest33-21ksoftirqd/221:35:152
29484993530,3cyclictest33-21ksoftirqd/200:15:132
29484993529,3cyclictest33-21ksoftirqd/220:10:132
29484993521,5cyclictest33-21ksoftirqd/220:50:142
29484993520,5cyclictest33-21ksoftirqd/221:30:242
29483993528,5cyclictest25-21ksoftirqd/122:46:221
29482993530,3cyclictest9-21ksoftirqd/000:30:110
2948599344,3cyclictest121rcu_preempt21:25:003
2948599344,3cyclictest121rcu_preempt21:25:003
29485993430,3cyclictest41-21ksoftirqd/321:30:163
29485993430,2cyclictest41-21ksoftirqd/321:40:273
29485993429,3cyclictest41-21ksoftirqd/323:50:133
29485993429,3cyclictest41-21ksoftirqd/321:50:253
29485993428,4cyclictest41-21ksoftirqd/300:07:503
29485993428,4cyclictest41-21ksoftirqd/300:07:503
29485993428,3cyclictest41-21ksoftirqd/320:55:013
29485993428,3cyclictest41-21ksoftirqd/319:45:243
2948499345,3cyclictest121rcu_preempt20:15:222
29484993430,3cyclictest33-21ksoftirqd/223:50:012
29484993430,2cyclictest33-21ksoftirqd/221:05:182
29484993430,2cyclictest33-21ksoftirqd/219:45:002
29484993429,3cyclictest33-21ksoftirqd/223:00:132
29484993429,3cyclictest33-21ksoftirqd/221:40:212
29484993429,3cyclictest33-21ksoftirqd/219:50:012
29484993428,4cyclictest33-21ksoftirqd/220:28:062
29484993421,5cyclictest33-21ksoftirqd/219:50:122
29484993420,3cyclictest33-21ksoftirqd/220:55:202
29484993419,5cyclictest33-21ksoftirqd/221:00:142
29484993419,5cyclictest33-21ksoftirqd/200:00:002
2948499341,3cyclictest121rcu_preempt19:20:152
2948499341,2cyclictest121rcu_preempt20:30:242
2948399344,2cyclictest121rcu_preempt22:15:001
2948399341,4cyclictest25-21ksoftirqd/123:01:151
29482993430,3cyclictest9-21ksoftirqd/021:50:010
29482993428,4cyclictest9-21ksoftirqd/023:03:250
29482993428,4cyclictest9-21ksoftirqd/021:14:130
29482993428,4cyclictest9-21ksoftirqd/020:15:120
29482993428,4cyclictest9-21ksoftirqd/019:56:180
2948599333,3cyclictest121rcu_preempt20:45:133
29485993330,2cyclictest41-21ksoftirqd/322:40:093
29485993329,3cyclictest41-21ksoftirqd/323:00:223
29485993328,3cyclictest41-21ksoftirqd/319:55:113
29485993327,4cyclictest41-21ksoftirqd/322:09:283
29485993327,4cyclictest41-21ksoftirqd/321:58:453
2948599332,3cyclictest121rcu_preempt20:30:183
29485993323,8cyclictest41-21ksoftirqd/321:10:183
29484993328,3cyclictest33-21ksoftirqd/222:45:102
29482993328,3cyclictest9-21ksoftirqd/022:05:100
29482993328,3cyclictest9-21ksoftirqd/021:25:110
29482993328,3cyclictest9-21ksoftirqd/019:51:490
29482993328,3cyclictest9-21ksoftirqd/000:25:210
29482993328,3cyclictest9-21ksoftirqd/000:25:000
29482993327,4cyclictest9-21ksoftirqd/022:32:040
29482993327,4cyclictest9-21ksoftirqd/020:22:180
29482993327,4cyclictest9-21ksoftirqd/019:46:110
29482993327,4cyclictest9-21ksoftirqd/019:19:440
29482993327,4cyclictest9-21ksoftirqd/000:09:190
29482993327,4cyclictest9-21ksoftirqd/000:09:190
29482993327,3cyclictest9-21ksoftirqd/019:25:050
29485993228,2cyclictest41-21ksoftirqd/322:15:133
29485993227,3cyclictest41-21ksoftirqd/319:10:173
29484993227,3cyclictest33-21ksoftirqd/219:15:192
29484993218,5cyclictest33-21ksoftirqd/221:15:292
29484993218,3cyclictest33-21ksoftirqd/220:40:172
29484993217,5cyclictest33-21ksoftirqd/223:30:242
29484993217,5cyclictest33-21ksoftirqd/200:35:142
29482993228,3cyclictest9-21ksoftirqd/020:05:110
29482993228,2cyclictest9-21ksoftirqd/020:40:000
29482993227,3cyclictest9-21ksoftirqd/021:00:200
29482993227,3cyclictest9-21ksoftirqd/020:41:360
29482993227,3cyclictest14917-21egrep23:10:130
29482993226,4cyclictest9-21ksoftirqd/021:33:230
29482993226,4cyclictest9-21ksoftirqd/020:30:560
29482993226,4cyclictest9-21ksoftirqd/000:18:590
29485993128,2cyclictest41-21ksoftirqd/320:15:003
29482993127,3cyclictest9-21ksoftirqd/023:28:290
29482993127,2cyclictest9-21ksoftirqd/019:35:000
29482993126,3cyclictest9-21ksoftirqd/023:37:100
29482993126,3cyclictest9-21ksoftirqd/022:55:120
29482993126,3cyclictest9-21ksoftirqd/022:01:310
29482993126,3cyclictest9-21ksoftirqd/021:41:290
29482993126,3cyclictest9-21ksoftirqd/021:37:120
29482993126,3cyclictest9-21ksoftirqd/020:49:100
29482993125,4cyclictest9-21ksoftirqd/023:56:560
29482993125,4cyclictest9-21ksoftirqd/023:40:520
29482993125,4cyclictest9-21ksoftirqd/020:13:030
29482993124,5cyclictest9-21ksoftirqd/020:04:130
29482993025,3cyclictest9-21ksoftirqd/019:15:000
29482993024,4cyclictest9-21ksoftirqd/020:55:100
29482993024,4cyclictest9-21ksoftirqd/020:51:140
29482993024,4cyclictest9-21ksoftirqd/000:14:520
29482993024,3cyclictest9-21ksoftirqd/021:56:520
29482992924,3cyclictest9-21ksoftirqd/023:47:150
29482992924,3cyclictest9-21ksoftirqd/022:43:350
29482992924,3cyclictest9-21ksoftirqd/022:38:130
29482992923,4cyclictest9-21ksoftirqd/022:49:170
29482992923,4cyclictest9-21ksoftirqd/022:26:260
29482992923,4cyclictest9-21ksoftirqd/022:11:090
29482992923,4cyclictest9-21ksoftirqd/019:42:020
29482992823,3cyclictest9-21ksoftirqd/023:20:090
29482992823,3cyclictest9-21ksoftirqd/023:16:570
29482992823,3cyclictest9-21ksoftirqd/021:53:310
29482992822,4cyclictest9-21ksoftirqd/021:15:090
29482992722,3cyclictest9-21ksoftirqd/023:50:130
29482992722,3cyclictest9-21ksoftirqd/000:03:020
29482992520,3cyclictest9-21ksoftirqd/000:38:300
29482992519,4cyclictest9-21ksoftirqd/019:20:400
29482992319,3cyclictest9-21ksoftirqd/023:05:130
29482992319,2cyclictest9-21ksoftirqd/020:25:210
29482992318,3cyclictest9-21ksoftirqd/023:32:400
29482992317,4cyclictest9-21ksoftirqd/022:16:110
29482992317,3cyclictest9-21ksoftirqd/022:20:120
29482992116,3cyclictest111rcuc/021:05:180
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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