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2026-07-31 - 22:26
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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 highest latencies:
System rackdslot3.osadl.org (updated Fri Jul 31, 2026 12:45:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2736223060,53sleep10-21swapper/107:05:211
286352205172,22sleep30-21swapper/307:09:503
283882204171,22sleep20-21swapper/207:06:452
265202202169,22sleep00-21swapper/007:05:100
286492162123,13sleep10-21swapper/107:10:011
286492162123,13sleep10-21swapper/107:10:011
1177721350,6sleep22894399cyclictest08:45:282
139391720,1ptp4l391rcuc/309:15:273
28944996123,4cyclictest41-21ksoftirqd/312:35:153
2894299618,11cyclictest16616-21/usr/sbin/munin12:20:131
2894299608,18cyclictest29431-21cpuspeed_turbos09:25:121
28942996010,11cyclictest10861-21sed11:00:161
28944995925,5cyclictest41-21ksoftirqd/307:20:193
28942995910,19cyclictest29483-21cpu11:40:171
28942995910,12cyclictest24632-21sensors_temp08:05:281
28944995828,3cyclictest41-21ksoftirqd/310:25:183
28944995826,7cyclictest41-21ksoftirqd/309:25:183
28942995812,11cyclictest29447-21cut10:30:231
28944995721,9cyclictest41-21ksoftirqd/311:50:243
2894299579,11cyclictest19300-21seq09:01:271
28944995622,7cyclictest41-21ksoftirqd/310:15:283
28944995621,6cyclictest41-21ksoftirqd/310:30:223
2894299568,12cyclictest5622-21/usr/sbin/munin11:55:221
28942995611,11cyclictest5896-21seq07:26:591
2894199561,7cyclictest20671-21awk12:30:000
28944995520,6cyclictest41-21ksoftirqd/310:40:193
28944995519,9cyclictest41-21ksoftirqd/309:10:233
28943995529,3cyclictest33-21ksoftirqd/210:40:172
28943995528,4cyclictest33-21ksoftirqd/210:25:172
28943995527,3cyclictest33-21ksoftirqd/207:20:142
28943995527,15cyclictest33-21ksoftirqd/209:40:002
28943995525,4cyclictest33-21ksoftirqd/210:45:132
2894299557,10cyclictest7251-21taskset07:30:181
28942995511,12cyclictest10876-21vmstat09:50:281
28944995421,8cyclictest41-21ksoftirqd/307:50:233
28944995420,8cyclictest41-21ksoftirqd/310:45:133
28944995420,8cyclictest41-21ksoftirqd/310:00:183
28944995420,7cyclictest41-21ksoftirqd/310:55:213
28944995420,7cyclictest41-21ksoftirqd/307:15:253
2894299549,11cyclictest21836-21taskset09:08:361
2894299549,11cyclictest13201-21threads09:55:261
2894299547,12cyclictest9551-21cat07:35:181
28942995410,11cyclictest27510-21seq08:12:411
2894499534,7cyclictest41-21ksoftirqd/308:35:003
28944995323,3cyclictest41-21ksoftirqd/309:40:243
28944995320,8cyclictest41-21ksoftirqd/311:15:243
28943995316,5cyclictest33-21ksoftirqd/207:15:002
28943995316,5cyclictest33-21ksoftirqd/207:14:592
2894299539,11cyclictest207-21systemd-journal11:08:101
2894299539,11cyclictest207-21systemd-journal11:08:101
2894299539,10cyclictest5666-21df08:35:141
2894299539,10cyclictest5666-21df08:35:141
2894299539,10cyclictest11374-21taskset12:10:001
2894299538,10cyclictest12518-21/usr/sbin/munin07:40:241
28942995311,18cyclictest16561-21fschecks_time07:50:171
28942995310,9cyclictest5522-21chrt10:50:111
28942995310,10cyclictest20573-21chrt12:29:081
28944995219,7cyclictest41-21ksoftirqd/310:20:183
28944995219,4cyclictest41-21ksoftirqd/308:04:073
28944995218,4cyclictest41-21ksoftirqd/311:26:263
28943995224,3cyclictest33-21ksoftirqd/212:15:242
2894299529,10cyclictest25017-21/usr/sbin/munin12:35:291
2894299527,9cyclictest14833-21latency_hist08:55:021
28942995210,11cyclictest24156-21taskset09:13:001
28942995210,10cyclictest26736-21seq11:34:001
28942995210,10cyclictest15649-21seq07:47:371
2894199525,8cyclictest9-21ksoftirqd/011:35:190
2894199523,10cyclictest9-21ksoftirqd/007:30:180
28941995213,7cyclictest9-21ksoftirqd/008:23:490
2894499517,2cyclictest41-21ksoftirqd/310:35:163
28944995115,8cyclictest41-21ksoftirqd/307:55:183
28944995113,6cyclictest41-21ksoftirqd/311:40:203
28943995123,4cyclictest33-21ksoftirqd/208:35:002
28943995122,3cyclictest33-21ksoftirqd/208:40:152
28943995121,4cyclictest33-21ksoftirqd/207:55:282
2894299519,11cyclictest24245-21seq11:27:221
2894299519,10cyclictest32762-21taskset10:39:381
2894299519,10cyclictest13782-21/usr/sbin/munin12:15:131
2894299517,10cyclictest7973-21/usr/sbin/munin08:40:131
28942995110,11cyclictest5205-21chrt10:49:191
2894199513,6cyclictest9-21ksoftirqd/008:09:590
2894199510,12cyclictest9-21ksoftirqd/012:30:250
2894499506,2cyclictest41-21ksoftirqd/311:10:173
2894499506,2cyclictest41-21ksoftirqd/309:05:233
2894499506,2cyclictest41-21ksoftirqd/307:45:233
28944995029,3cyclictest41-21ksoftirqd/312:23:353
28944995020,8cyclictest41-21ksoftirqd/312:05:243
28944995011,8cyclictest41-21ksoftirqd/311:20:303
28943995021,9cyclictest33-21ksoftirqd/207:15:242
28943995021,4cyclictest33-21ksoftirqd/211:50:162
28943995020,13cyclictest33-21ksoftirqd/208:20:252
28943995019,4cyclictest33-21ksoftirqd/212:00:012
28943995015,4cyclictest33-21ksoftirqd/210:40:002
2894399501,3cyclictest121rcu_preempt11:20:242
2894299509,16cyclictest8745-21taskset12:04:331
2894299509,11cyclictest29023-21seq11:37:531
2894299509,11cyclictest20863-21chrt10:14:091
2894299509,11cyclictest11103-21seq12:09:251
2894299507,10cyclictest16933-21sshd08:59:231
2894199505,9cyclictest9-21ksoftirqd/011:50:250
2894199503,5cyclictest9-21ksoftirqd/010:19:590
2894199502,5cyclictest9-21ksoftirqd/009:20:170
2894499497,2cyclictest41-21ksoftirqd/308:20:213
2894499496,5cyclictest41-21ksoftirqd/311:35:233
2894499493,9cyclictest41-21ksoftirqd/307:10:193
2894499493,9cyclictest41-21ksoftirqd/307:10:193
2894499493,7cyclictest41-21ksoftirqd/309:35:253
28944994919,3cyclictest41-21ksoftirqd/310:10:023
28944994917,4cyclictest41-21ksoftirqd/308:59:123
28944994916,6cyclictest41-21ksoftirqd/308:47:453
28943994920,3cyclictest33-21ksoftirqd/212:10:242
28943994916,4cyclictest33-21ksoftirqd/211:35:002
28943994914,4cyclictest33-21ksoftirqd/209:30:012
2894299499,11cyclictest25687-21seq10:24:551
2894299499,10cyclictest8652-21seq09:47:171
2894299499,10cyclictest1300-21snmpd07:15:121
2894299498,11cyclictest159562sleep110:01:531
2894299498,10cyclictest1235-21taskset11:46:151
2894299497,9cyclictest1542-21taskset09:33:561
2894299496,9cyclictest3472-21hostname08:30:181
28942994910,10cyclictest22854-21chrt08:03:441
2894199495,6cyclictest9-21ksoftirqd/010:30:190
28941994945,2cyclictest111rcuc/012:35:200
2894199493,7cyclictest9-21ksoftirqd/009:15:130
2894199493,6cyclictest9-21ksoftirqd/008:15:280
2894199492,6cyclictest9-21ksoftirqd/010:00:200
2894199491,6cyclictest101ktimersoftd/012:15:140
2894199491,6cyclictest101ktimersoftd/011:05:220
2894199491,6cyclictest101ktimersoftd/011:05:220
139391490,0ptp4l401ktimersoftd/307:30:173
2894499487,5cyclictest41-21ksoftirqd/309:55:143
2894499487,2cyclictest41-21ksoftirqd/308:35:253
2894499487,2cyclictest41-21ksoftirqd/308:35:253
2894499486,2cyclictest41-21ksoftirqd/309:45:193
2894499486,2cyclictest41-21ksoftirqd/309:20:133
2894499486,2cyclictest41-21ksoftirqd/308:25:193
2894499486,2cyclictest41-21ksoftirqd/307:25:193
2894499485,2cyclictest41-21ksoftirqd/311:05:233
2894499485,2cyclictest41-21ksoftirqd/311:05:233
28944994832,3cyclictest41-21ksoftirqd/309:55:003
28944994813,7cyclictest41-21ksoftirqd/311:30:153
28943994819,3cyclictest33-21ksoftirqd/209:00:152
28943994813,4cyclictest33-21ksoftirqd/211:30:002
2894299489,15cyclictest20292-21taskset07:56:261
2894299489,10cyclictest26946-21taskset09:20:101
2894299489,10cyclictest16638-21/usr/sbin/munin11:10:271
28942994810,12cyclictest22698-21taskset12:30:561
28942994810,10cyclictest29985-21chrt08:18:551
2894199486,8cyclictest9-21ksoftirqd/008:30:140
2894199483,8cyclictest9-21ksoftirqd/008:10:260
2894199483,7cyclictest9-21ksoftirqd/011:25:000
2894199483,6cyclictest9-21ksoftirqd/011:20:000
2894199483,6cyclictest9-21ksoftirqd/009:45:000
2894199482,7cyclictest101ktimersoftd/011:30:180
2894199482,5cyclictest9-21ksoftirqd/009:35:180
2894199482,5cyclictest9-21ksoftirqd/009:25:140
2894199482,5cyclictest9-21ksoftirqd/007:40:190
2894499476,2cyclictest41-21ksoftirqd/312:30:273
2894499474,3cyclictest41-21ksoftirqd/312:25:173
28944994732,4cyclictest41-21ksoftirqd/308:19:593
28944994731,4cyclictest41-21ksoftirqd/312:00:273
2894499472,8cyclictest41-21ksoftirqd/309:00:153
28944994717,10cyclictest41-21ksoftirqd/312:15:163
28944994710,8cyclictest41-21ksoftirqd/311:55:153
28944994710,8cyclictest41-21ksoftirqd/310:10:173
28943994720,6cyclictest33-21ksoftirqd/212:05:252
2894299478,8cyclictest3880-21taskset09:37:461
2894199475,8cyclictest9-21ksoftirqd/007:20:190
2894199474,8cyclictest9-21ksoftirqd/008:40:250
2894199474,5cyclictest9-21ksoftirqd/007:10:210
2894199474,5cyclictest9-21ksoftirqd/007:10:200
2894199473,6cyclictest9-21ksoftirqd/008:25:130
2894199473,6cyclictest101ktimersoftd/007:45:130
2894199473,5cyclictest9-21ksoftirqd/012:00:220
28941994734,4cyclictest9-21ksoftirqd/008:00:010
2894199472,5cyclictest9-21ksoftirqd/011:25:250
2894199472,5cyclictest9-21ksoftirqd/010:45:240
2894499465,2cyclictest41-21ksoftirqd/311:00:163
2894499465,2cyclictest121rcu_preempt10:50:183
2894499463,3cyclictest121rcu_preempt08:05:273
28944994631,4cyclictest41-21ksoftirqd/308:50:153
28943994624,6cyclictest33-21ksoftirqd/207:30:252
28943994619,4cyclictest33-21ksoftirqd/209:05:272
2894399461,4cyclictest11340-1kworker/2:2H10:20:002
28943994613,5cyclictest33-21ksoftirqd/211:00:002
2894399460,2cyclictest121rcu_preempt11:40:002
2894299469,10cyclictest32233-21chrt08:22:081
28942994610,17cyclictest3033-21/usr/sbin/munin11:50:221
2894199466,7cyclictest9-21ksoftirqd/010:55:000
28941994642,2cyclictest111rcuc/009:50:130
2894199463,6cyclictest9-21ksoftirqd/007:50:290
2894199462,7cyclictest9-21ksoftirqd/012:10:000
2894199462,7cyclictest9-21ksoftirqd/007:38:550
2894199462,5cyclictest9-21ksoftirqd/010:05:140
2894199462,5cyclictest9-21ksoftirqd/008:35:290
2894199462,5cyclictest9-21ksoftirqd/008:35:290
2894499452,4cyclictest41-21ksoftirqd/307:40:143
28944994514,8cyclictest41-21ksoftirqd/308:44:363
28943994517,4cyclictest33-21ksoftirqd/211:15:252
28943994514,4cyclictest33-21ksoftirqd/207:50:302
28943994511,4cyclictest33-21ksoftirqd/207:40:202
2894399450,2cyclictest121rcu_preempt09:00:002
2894299459,10cyclictest2711-21chrt10:43:211
2894299458,13cyclictest18481-21chrt10:08:561
2894299458,12cyclictest6309-21taskset09:42:371
2894299457,8cyclictest27888-21taskset10:27:531
2894199454,7cyclictest9-21ksoftirqd/009:00:260
2894199453,5cyclictest9-21ksoftirqd/010:20:280
2894199451,5cyclictest0-21swapper/011:40:180
2894199450,5cyclictest0-21swapper/011:15:000
2894499447,2cyclictest41-21ksoftirqd/307:36:353
2894499446,3cyclictest41-21ksoftirqd/312:10:553
2894499446,2cyclictest121rcu_preempt08:10:223
28944994424,10cyclictest41-21ksoftirqd/309:30:163
28943994435,3cyclictest33-21ksoftirqd/211:45:002
28943994432,4cyclictest33-21ksoftirqd/209:55:232
28943994428,4cyclictest33-21ksoftirqd/209:15:272
28943994420,16cyclictest33-21ksoftirqd/208:15:292
28943994417,4cyclictest33-21ksoftirqd/210:20:212
28943994417,4cyclictest33-21ksoftirqd/210:00:132
28943994416,4cyclictest33-21ksoftirqd/209:45:132
28943994416,3cyclictest33-21ksoftirqd/209:10:202
28943994415,4cyclictest33-21ksoftirqd/212:20:202
28943994413,4cyclictest33-21ksoftirqd/208:00:192
2894399440,5cyclictest121rcu_preempt11:45:232
2894199445,5cyclictest9-21ksoftirqd/009:30:270
2894199443,6cyclictest9-21ksoftirqd/012:23:200
2894199443,5cyclictest9-21ksoftirqd/010:10:130
2894199440,5cyclictest9-21ksoftirqd/011:00:180
2894199440,5cyclictest101ktimersoftd/008:50:000
28944994321,10cyclictest41-21ksoftirqd/311:50:013
2894399438,7cyclictest33-21ksoftirqd/208:05:242
2894399432,2cyclictest121rcu_preempt10:05:192
28943994312,4cyclictest33-21ksoftirqd/211:05:222
28943994312,4cyclictest33-21ksoftirqd/211:05:222
2894399430,5cyclictest30410-21sshd10:34:442
2894399430,3cyclictest121rcu_preempt09:30:272
2894399430,2cyclictest121rcu_preempt07:25:142
2894199435,9cyclictest9-21ksoftirqd/009:10:230
2894199431,5cyclictest9-21ksoftirqd/009:55:030
28943994233,3cyclictest33-21ksoftirqd/209:45:002
28943994231,4cyclictest33-21ksoftirqd/210:50:132
28943994230,3cyclictest33-21ksoftirqd/212:35:252
28943994230,3cyclictest33-21ksoftirqd/208:25:222
2894399420,5cyclictest121rcu_preempt12:30:002
2894299428,10cyclictest23002-21runrttasks10:16:121
2894199423,8cyclictest9-21ksoftirqd/010:35:250
2894199423,5cyclictest9-21ksoftirqd/008:55:210
2894199420,6cyclictest101ktimersoftd/010:25:130
2894399418,4cyclictest33-21ksoftirqd/207:45:172
28943994133,2cyclictest33-21ksoftirqd/211:15:002
2894399412,2cyclictest121rcu_preempt11:00:142
2894199413,5cyclictest9-21ksoftirqd/010:40:210
2894199412,6cyclictest9-21ksoftirqd/008:50:130
28943994028,3cyclictest33-21ksoftirqd/210:10:122
28943994027,3cyclictest33-21ksoftirqd/209:20:282
28943994026,4cyclictest33-21ksoftirqd/209:50:182
28943994010,9cyclictest33-21ksoftirqd/208:50:192
2894399400,3cyclictest121rcu_preempt08:15:002
28941994036,2cyclictest101ktimersoftd/010:55:250
2894199402,5cyclictest9-21ksoftirqd/012:10:100
2894199401,5cyclictest9-21ksoftirqd/007:27:570
2894399396,6cyclictest33-21ksoftirqd/208:35:172
2894399396,6cyclictest33-21ksoftirqd/208:35:172
28943993927,9cyclictest33-21ksoftirqd/212:30:192
2894399390,3cyclictest121rcu_preempt12:00:272
2894299398,11cyclictest19447-21taskset11:16:501
28942993910,11cyclictest2267-21seq08:27:541
2894199395,9cyclictest9-21ksoftirqd/011:45:200
2894299389,11cyclictest12153-21chrt08:48:531
28942993810,12cyclictest3451-21taskset07:21:421
2894199384,8cyclictest1300-21snmpd07:17:270
2894199382,5cyclictest9-21ksoftirqd/011:55:200
2894299378,9cyclictest7866-21runrttasks10:55:071
28942993710,16cyclictest26571-21seq09:18:371
2894199370,6cyclictest101ktimersoftd/008:00:170
28942993610,11cyclictest21934-21chrt11:23:061
28943993530,3cyclictest33-21ksoftirqd/207:35:142
2894199340,6cyclictest9-21ksoftirqd/009:05:190
28941993228,2cyclictest9-21ksoftirqd/009:45:230
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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