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2026-09-24 - 09:26
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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 792 highest latencies:
System rackdslot3.osadl.org (updated Thu Sep 24, 2026 00:45:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2490622180,6sleep124892-21sh19:08:321
3220722170,6sleep332204-21spawn19:05:533
192452202168,23sleep00-21swapper/019:06:510
191742202169,22sleep20-21swapper/219:06:242
315502860,5sleep315957-21looper19:11:153
162552710,3sleep2311rcuc/219:11:292
84632700,5sleep341-21ksoftirqd/300:20:003
7572690,4sleep0761-21fschecks_time19:10:150
1761099678,12cyclictest10199-21wc19:55:003
1761099668,13cyclictest834-21cut20:40:173
1761099658,18cyclictest3697-21latency_hist00:10:003
1761099658,11cyclictest13225-21latency_hist22:15:013
1761099657,11cyclictest17417-21grep20:10:003
1761099648,11cyclictest26542-21sed19:20:183
1761099637,11cyclictest4646-21cut00:10:153
216632620,4sleep121644-21sh19:12:231
129182620,1sleep00-21swapper/023:20:170
1761099617,11cyclictest22206-21latency_hist20:20:013
1761099608,19cyclictest27215-21cut21:35:183
1761099607,11cyclictest1749-21sed21:50:173
1761099606,10cyclictest18102-21fschecks_time20:10:163
184432590,4sleep30-21swapper/322:25:143
1761099597,18cyclictest25572-21wc23:45:233
1761099596,11cyclictest20606-21expr22:30:133
1761099596,11cyclictest12169-21cpu21:05:143
1761099596,11cyclictest12169-21cpu21:05:143
39842580,4sleep00-21swapper/019:40:230
1761099587,11cyclictest23135-21sed23:40:273
1761099587,11cyclictest12951-21cstates20:00:143
1761099586,10cyclictest2839-21cat19:40:143
1761099577,19cyclictest2476-21latency_hist19:40:013
1761099577,10cyclictest10374-21awk00:20:263
1761099576,11cyclictest26193-21latency_hist21:35:003
1761099575,11cyclictest14649-21phc2sys-jitter00:30:233
1761099566,10cyclictest16159-21df_abs00:35:163
1761099557,16cyclictest20500-21cat23:35:223
1761099556,16cyclictest2672-21cpuspeed23:00:133
1761099536,10cyclictest7835-21irqrtprio20:55:193
17610995310,17cyclictest29240-21awk22:45:253
1761099527,16cyclictest27999-21mailstats23:50:253
1761099526,14cyclictest9055-21ssh23:10:293
17609995224,7cyclictest33-21ksoftirqd/223:00:142
1761099514,16cyclictest0-21swapper/320:30:253
1761099486,7cyclictest14307-21ls22:15:223
290902470,2sleep10-21swapper/119:25:201
1761099477,17cyclictest12217-21cat23:20:003
17609994740,4cyclictest19038-21sh21:20:002
17609994715,5cyclictest33-21ksoftirqd/219:35:172
17609994620,7cyclictest33-21ksoftirqd/223:25:012
17609994618,6cyclictest33-21ksoftirqd/220:20:002
64092450,2sleep30-21swapper/322:00:153
1761099453,9cyclictest0-21swapper/321:10:133
17609994516,5cyclictest33-21ksoftirqd/220:50:242
17609994516,4cyclictest33-21ksoftirqd/200:00:002
1760999449,7cyclictest33-21ksoftirqd/200:20:002
1760999448,5cyclictest33-21ksoftirqd/223:35:012
17609994312,6cyclictest33-21ksoftirqd/221:10:182
1761099425,7cyclictest18617-21ls23:30:253
17609994223,17cyclictest33-21ksoftirqd/221:05:012
17605994235,4cyclictest9679-21dump-pmu-power23:15:011
139391420,0ptp4l401ktimersoftd/323:05:273
139391420,0ptp4l401ktimersoftd/320:27:583
139391410,0ptp4l401ktimersoftd/321:18:453
1760999409,7cyclictest33-21ksoftirqd/223:45:022
17609994035,3cyclictest33-21ksoftirqd/222:05:002
17609994031,6cyclictest33-21ksoftirqd/223:15:012
17609994014,3cyclictest33-21ksoftirqd/223:15:142
17609994010,5cyclictest33-21ksoftirqd/220:00:152
1760999400,2cyclictest121rcu_preempt22:55:142
1761099394,10cyclictest0-21swapper/321:40:183
1761099394,10cyclictest0-21swapper/321:40:173
1760999398,3cyclictest33-21ksoftirqd/219:25:182
1760999396,5cyclictest33-21ksoftirqd/222:05:132
17609993934,3cyclictest33-21ksoftirqd/219:55:142
17609993934,3cyclictest33-21ksoftirqd/200:05:192
17609993926,11cyclictest33-21ksoftirqd/220:30:012
17609993912,3cyclictest33-21ksoftirqd/219:50:012
17609993910,5cyclictest33-21ksoftirqd/221:40:222
17609993910,5cyclictest33-21ksoftirqd/221:40:222
1760999390,2cyclictest121rcu_preempt22:25:192
1761099383,10cyclictest0-21swapper/323:25:193
1760999387,4cyclictest33-21ksoftirqd/220:10:132
1760999385,5cyclictest33-21ksoftirqd/200:35:262
17609993833,3cyclictest33-21ksoftirqd/222:35:012
17609993833,3cyclictest33-21ksoftirqd/200:25:002
17609993832,3cyclictest33-21ksoftirqd/222:45:182
17609993830,5cyclictest33-21ksoftirqd/223:29:132
17609993828,2cyclictest121rcu_preempt20:25:002
17609993825,11cyclictest33-21ksoftirqd/223:55:022
17609993824,5cyclictest33-21ksoftirqd/221:45:162
1760999381,4cyclictest33-21ksoftirqd/221:35:202
1760999380,3cyclictest121rcu_preempt19:40:282
1760999380,2cyclictest121rcu_preempt22:20:002
17605993833,3cyclictest16807-21sh23:30:001
17610993730,5cyclictest41-21ksoftirqd/321:25:013
17609993733,2cyclictest33-21ksoftirqd/219:20:192
17609993732,3cyclictest33-21ksoftirqd/221:25:002
17609993732,3cyclictest33-21ksoftirqd/200:10:112
17609993732,2cyclictest33-21ksoftirqd/222:10:242
17609993731,3cyclictest33-21ksoftirqd/219:30:302
17609993729,5cyclictest33-21ksoftirqd/223:46:582
17609993711,6cyclictest33-21ksoftirqd/222:50:172
1760599370,11cyclictest0-21swapper/123:20:121
17601993732,3cyclictest9-21ksoftirqd/020:20:000
1761099364,9cyclictest0-21swapper/322:00:003
17609993631,3cyclictest33-21ksoftirqd/222:45:002
17609993631,3cyclictest33-21ksoftirqd/220:35:122
17609993631,3cyclictest33-21ksoftirqd/219:15:132
17609993631,2cyclictest33-21ksoftirqd/221:05:182
17609993631,2cyclictest33-21ksoftirqd/221:05:182
17609993630,4cyclictest33-21ksoftirqd/220:49:012
17609993630,3cyclictest33-21ksoftirqd/223:05:182
17609993630,3cyclictest33-21ksoftirqd/220:45:012
17609993630,3cyclictest33-21ksoftirqd/200:25:142
17605993630,4cyclictest25-21ksoftirqd/123:06:331
17605993629,4cyclictest25-21ksoftirqd/119:54:251
17601993631,3cyclictest9-21ksoftirqd/000:25:270
57898350,2rtkit-daemon0-21swapper/121:29:101
57898350,1rtkit-daemon0-21swapper/122:58:181
17609993530,3cyclictest33-21ksoftirqd/220:30:252
17609993530,2cyclictest33-21ksoftirqd/222:40:002
17609993530,2cyclictest33-21ksoftirqd/200:00:202
17609993529,3cyclictest33-21ksoftirqd/221:56:592
17609993529,3cyclictest33-21ksoftirqd/220:55:162
1760999350,2cyclictest121rcu_preempt21:54:312
17605993531,2cyclictest28968-21nfs4_client22:45:221
17605993530,3cyclictest25-21ksoftirqd/120:50:131
17605993530,3cyclictest25-21ksoftirqd/100:30:331
17605993529,4cyclictest25-21ksoftirqd/121:17:061
17605993529,4cyclictest25-21ksoftirqd/120:39:461
17605993529,4cyclictest25-21ksoftirqd/120:31:191
17605993529,4cyclictest25-21ksoftirqd/119:19:111
17605993528,4cyclictest25-21ksoftirqd/122:33:391
17601993529,3cyclictest9-21ksoftirqd/023:17:010
17610993428,4cyclictest41-21ksoftirqd/323:21:353
17610993428,4cyclictest41-21ksoftirqd/322:40:073
17610993428,4cyclictest41-21ksoftirqd/322:06:373
17609993430,2cyclictest33-21ksoftirqd/222:20:122
17609993430,2cyclictest33-21ksoftirqd/221:30:292
17609993430,2cyclictest33-21ksoftirqd/221:25:222
17609993429,3cyclictest33-21ksoftirqd/223:35:212
17609993429,3cyclictest33-21ksoftirqd/220:05:012
17609993429,3cyclictest33-21ksoftirqd/219:45:182
17609993429,3cyclictest33-21ksoftirqd/200:30:162
17605993429,3cyclictest25-21ksoftirqd/120:25:111
17605993428,4cyclictest25-21ksoftirqd/123:36:451
17605993428,4cyclictest25-21ksoftirqd/121:43:091
17605993428,4cyclictest25-21ksoftirqd/121:43:081
17605993428,4cyclictest25-21ksoftirqd/120:11:571
17605993428,4cyclictest25-21ksoftirqd/100:27:081
17605993427,5cyclictest25-21ksoftirqd/120:55:351
17601993428,4cyclictest9-21ksoftirqd/022:25:480
1761099337,16cyclictest449-21dbus-daemon20:20:243
17610993327,4cyclictest41-21ksoftirqd/322:36:503
17610993327,4cyclictest41-21ksoftirqd/320:39:363
17605993328,3cyclictest25-21ksoftirqd/122:42:411
17605993328,3cyclictest25-21ksoftirqd/121:11:461
17605993327,4cyclictest25-21ksoftirqd/122:13:051
17605993327,4cyclictest25-21ksoftirqd/121:31:171
17605993327,4cyclictest25-21ksoftirqd/121:07:421
17605993327,4cyclictest25-21ksoftirqd/121:07:421
17605993327,4cyclictest25-21ksoftirqd/121:01:081
17605993327,4cyclictest25-21ksoftirqd/100:07:581
17601993327,4cyclictest9-21ksoftirqd/022:46:100
17601993327,4cyclictest9-21ksoftirqd/021:06:540
17601993327,4cyclictest9-21ksoftirqd/021:06:540
17601993327,4cyclictest9-21ksoftirqd/020:08:040
17601993327,4cyclictest9-21ksoftirqd/019:56:520
17601993327,4cyclictest9-21ksoftirqd/019:19:130
17601993327,4cyclictest9-21ksoftirqd/000:23:500
17601993327,4cyclictest9-21ksoftirqd/000:10:020
17601993326,4cyclictest9-21ksoftirqd/023:05:030
1761099328,11cyclictest10102-21df_abs21:00:153
1761099323,10cyclictest0-21swapper/300:00:243
17610993226,4cyclictest41-21ksoftirqd/319:33:123
17605993227,3cyclictest25-21ksoftirqd/121:22:421
17605993227,3cyclictest25-21ksoftirqd/119:45:071
17605993227,3cyclictest25-21ksoftirqd/100:11:511
17605993226,4cyclictest25-21ksoftirqd/121:54:071
17605993226,4cyclictest25-21ksoftirqd/120:20:331
17605993226,4cyclictest25-21ksoftirqd/100:24:551
17605993226,4cyclictest25-21ksoftirqd/100:00:521
17601993227,3cyclictest9-21ksoftirqd/023:55:110
17601993227,3cyclictest9-21ksoftirqd/021:54:540
17601993227,3cyclictest9-21ksoftirqd/021:35:120
17601993227,3cyclictest9-21ksoftirqd/000:37:020
17601993226,4cyclictest9-21ksoftirqd/023:51:300
17601993226,4cyclictest9-21ksoftirqd/022:54:040
17601993226,4cyclictest9-21ksoftirqd/022:36:360
17601993226,4cyclictest9-21ksoftirqd/022:21:220
17601993226,3cyclictest9-21ksoftirqd/021:50:000
17610993128,2cyclictest41-21ksoftirqd/321:45:463
17610993126,3cyclictest41-21ksoftirqd/322:51:203
17610993125,4cyclictest41-21ksoftirqd/320:45:503
17610993125,4cyclictest41-21ksoftirqd/319:49:543
17605993126,3cyclictest25-21ksoftirqd/122:25:101
17605993126,3cyclictest25-21ksoftirqd/100:36:421
17605993125,4cyclictest25-21ksoftirqd/123:49:251
17605993125,4cyclictest25-21ksoftirqd/122:23:241
17605993125,4cyclictest25-21ksoftirqd/120:48:331
17605993125,4cyclictest25-21ksoftirqd/120:42:551
17605993125,4cyclictest25-21ksoftirqd/120:00:101
17605993125,4cyclictest25-21ksoftirqd/119:41:381
17601993126,3cyclictest9-21ksoftirqd/019:48:500
17601993125,4cyclictest9-21ksoftirqd/021:02:070
17601993125,4cyclictest9-21ksoftirqd/020:43:430
17601993125,4cyclictest9-21ksoftirqd/019:32:220
17601993125,4cyclictest9-21ksoftirqd/000:17:400
17601993124,5cyclictest9-21ksoftirqd/023:11:380
17601993124,4cyclictest9-21ksoftirqd/022:30:060
1761099307,11cyclictest27977-21/usr/sbin/munin19:25:123
17610993025,3cyclictest41-21ksoftirqd/322:58:053
17610993025,3cyclictest41-21ksoftirqd/320:50:483
17610993025,3cyclictest41-21ksoftirqd/319:17:323
17610993025,3cyclictest41-21ksoftirqd/300:25:123
17605993025,3cyclictest25-21ksoftirqd/123:51:131
17605993025,3cyclictest25-21ksoftirqd/100:18:041
17605993023,4cyclictest25-21ksoftirqd/123:40:061
17601993025,3cyclictest9-21ksoftirqd/023:02:300
17601993025,3cyclictest9-21ksoftirqd/022:42:530
17601993025,3cyclictest9-21ksoftirqd/020:39:250
17601993025,3cyclictest9-21ksoftirqd/020:20:010
17601993024,4cyclictest9-21ksoftirqd/020:29:540
17601993024,4cyclictest9-21ksoftirqd/000:31:120
1761099294,10cyclictest0-21swapper/321:25:233
17605992924,3cyclictest25-21ksoftirqd/122:36:391
17605992923,4cyclictest25-21ksoftirqd/122:09:081
17605992923,4cyclictest25-21ksoftirqd/119:20:561
17601992924,3cyclictest9-21ksoftirqd/023:37:300
17601992924,3cyclictest9-21ksoftirqd/023:30:190
17601992924,3cyclictest9-21ksoftirqd/021:27:390
17601992924,3cyclictest9-21ksoftirqd/021:13:480
17601992923,4cyclictest9-21ksoftirqd/023:27:270
17601992923,4cyclictest9-21ksoftirqd/022:55:360
1761099286,7cyclictest11399-21ls19:55:213
1761099283,9cyclictest0-21swapper/323:55:263
17605992822,4cyclictest25-21ksoftirqd/123:59:161
17605992822,4cyclictest25-21ksoftirqd/121:37:181
17605992822,4cyclictest25-21ksoftirqd/120:18:001
17601992823,3cyclictest9-21ksoftirqd/022:19:260
17601992823,3cyclictest9-21ksoftirqd/021:56:140
17601992823,3cyclictest9-21ksoftirqd/020:02:230
17601992822,4cyclictest9-21ksoftirqd/023:40:180
17601992822,4cyclictest9-21ksoftirqd/019:35:070
17601992822,4cyclictest9-21ksoftirqd/019:22:550
17605992722,3cyclictest25-21ksoftirqd/122:02:091
17605992722,3cyclictest25-21ksoftirqd/119:36:181
17605992721,4cyclictest25-21ksoftirqd/123:01:231
17605992721,4cyclictest25-21ksoftirqd/122:19:071
1760599270,2cyclictest121rcu_preempt23:15:181
1760599270,26cyclictest0-21swapper/120:06:541
17601992722,3cyclictest9-21ksoftirqd/021:15:200
17601992721,4cyclictest9-21ksoftirqd/021:40:190
17601992721,4cyclictest9-21ksoftirqd/021:40:180
17601992721,4cyclictest9-21ksoftirqd/020:57:420
17601992721,3cyclictest9-21ksoftirqd/019:26:260
17601992720,5cyclictest9-21ksoftirqd/021:31:160
17610992621,3cyclictest41-21ksoftirqd/322:22:493
17605992620,3cyclictest25-21ksoftirqd/121:45:251
17601992622,3cyclictest9-21ksoftirqd/022:03:280
17601992621,3cyclictest9-21ksoftirqd/020:31:450
17601992621,3cyclictest9-21ksoftirqd/000:05:120
17601992620,4cyclictest9-21ksoftirqd/023:46:480
17601992620,4cyclictest9-21ksoftirqd/019:54:230
17605992520,3cyclictest25-21ksoftirqd/119:30:141
17601992520,3cyclictest9-21ksoftirqd/020:53:350
17601992520,3cyclictest9-21ksoftirqd/020:15:010
17601992519,4cyclictest9-21ksoftirqd/022:07:140
17601992519,4cyclictest9-21ksoftirqd/000:01:200
17605992419,3cyclictest25-21ksoftirqd/121:57:231
17601992416,4cyclictest9-21ksoftirqd/021:20:120
17601992318,3cyclictest9-21ksoftirqd/022:10:390
17605992116,3cyclictest25-21ksoftirqd/119:55:201
17605992115,4cyclictest25-21ksoftirqd/122:54:591
17605992015,3cyclictest25-21ksoftirqd/123:33:041
17601991612,2cyclictest1317-21runrttasks20:48:290
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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