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2026-04-06 - 15:45
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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 Mon Apr 06, 2026 12:45:45)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
139591235169,22phc2sys0-21swapper/307:05:493
40932207173,22sleep10-21swapper/107:09:441
37802207174,22sleep00-21swapper/007:05:410
40082205172,22sleep20-21swapper/207:08:412
1385921620,8sleep2441399cyclictest08:35:212
4412996913,18cyclictest8098-21sed07:15:211
4412996913,12cyclictest24656-21ps10:05:231
4412996814,17cyclictest22717-21chrt12:18:131
4412996614,18cyclictest15322-21/usr/sbin/munin07:30:211
4412996515,12cyclictest25762-21/usr/sbin/munin09:00:211
4412996515,10cyclictest14736-21taskset08:38:561
4412996514,18cyclictest6899-21/usr/sbin/munin08:20:231
4412996413,18cyclictest30266-21latency11:25:191
4412996313,18cyclictest9470-21threads08:25:241
4412996313,18cyclictest10453-21/usr/sbin/munin10:45:191
4412996313,12cyclictest11787-21dpkg07:25:111
4412996311,10cyclictest21172-21sshd11:05:261
4412996311,10cyclictest21172-21sshd11:05:261
4412996215,11cyclictest22073-21/usr/sbin/munin10:00:221
4412996215,10cyclictest12550-21/usr/sbin/munin11:55:251
4412996215,10cyclictest11473-21chrt09:40:031
4412996214,17cyclictest27596-21seq12:29:511
4412996214,11cyclictest2818-21taskset08:13:171
4412996214,11cyclictest26203-21taskset11:16:461
4412996213,17cyclictest8843-21netstat10:40:221
4412996213,11cyclictest5063-21if_err_enp4s007:10:171
4412996212,18cyclictest4772-21forks09:25:161
4412996212,17cyclictest15396-21cat09:45:261
4412996212,12cyclictest19250-21/usr/sbin/munin09:55:181
4412996116,17cyclictest4632-21smart_sda08:15:241
4412996115,15cyclictest11115-21seq09:38:361
4412996115,11cyclictest23220-21taskset07:47:141
4412996114,11cyclictest3885-21wc10:30:191
4412996114,11cyclictest29830-21which08:00:241
4412996112,10cyclictest190642sleep111:01:581
4412996015,11cyclictest24899-21chrt12:20:371
4412996014,12cyclictest25573-21taskset07:52:031
4412995913,11cyclictest690-21grep09:15:241
4412995815,12cyclictest14614-21memory12:00:211
4412995812,11cyclictest5424-21cpuspeed_turbos10:35:131
441299577,9cyclictest32119-21ptp4l08:05:241
4411995724,4cyclictest9-21ksoftirqd/009:30:200
4412995613,15cyclictest15811-21sed08:40:191
4412995613,14cyclictest2337-21diskstats09:20:151
4412995613,12cyclictest16804-21df07:35:141
4412995611,9cyclictest10380-21cat11:50:251
243422560,3sleep20-21swapper/211:15:112
4412995513,12cyclictest7383-21iostat09:30:171
139291550,1ptp4l401ktimersoftd/310:09:553
67022540,1sleep30-21swapper/310:35:243
4412995414,8cyclictest28882-21chrt11:22:431
4412995411,9cyclictest11754-21sensors08:30:241
4412995316,17cyclictest31425-21/usr/sbin/munin12:35:241
4412995315,16cyclictest24029-21chrt08:55:421
4412995312,13cyclictest6749-21df11:45:151
4412995311,12cyclictest12431-21apt-get10:50:121
14842530,1sleep20-21swapper/208:10:182
52662520,2sleep30-21swapper/310:35:013
4412995214,10cyclictest27549-21runrttasks10:10:391
4412995212,12cyclictest30919-21df_inode10:20:151
441199523,6cyclictest9-21ksoftirqd/010:44:590
38612520,2sleep03855-21awk11:40:000
38612520,2sleep03855-21awk11:39:590
4412995112,11cyclictest27239-21/usr/sbin/munin07:55:211
441299509,8cyclictest16626-21forks09:50:151
441299502,11cyclictest2824-21uname11:35:211
441299502,11cyclictest2824-21uname11:35:211
4412995013,9cyclictest15183-21/usr/sbin/munin10:55:161
242642500,5sleep224265-21irqrtprio10:05:182
4412994911,11cyclictest32058-21df_inode11:30:151
441199493,6cyclictest101ktimersoftd/009:40:110
4412994811,11cyclictest30011-21iostat09:10:161
441199486,4cyclictest9-21ksoftirqd/011:22:310
441199485,5cyclictest9-21ksoftirqd/007:53:510
441199475,5cyclictest9-21ksoftirqd/012:36:530
441199475,5cyclictest9-21ksoftirqd/012:13:260
441199475,5cyclictest9-21ksoftirqd/008:35:270
441199467,5cyclictest9-21ksoftirqd/010:50:250
441199467,5cyclictest9-21ksoftirqd/010:45:310
441199465,5cyclictest9-21ksoftirqd/011:53:430
441199457,5cyclictest9-21ksoftirqd/008:10:150
441199457,4cyclictest9-21ksoftirqd/010:38:010
441199455,5cyclictest9-21ksoftirqd/009:49:000
441199455,5cyclictest9-21ksoftirqd/007:28:280
441199454,6cyclictest9-21ksoftirqd/012:19:390
441199454,5cyclictest9-21ksoftirqd/007:23:300
441199452,6cyclictest9-21ksoftirqd/011:40:200
4412994413,11cyclictest4444-21/usr/sbin/munin11:40:131
441199443,5cyclictest9-21ksoftirqd/010:30:160
441199442,5cyclictest9-21ksoftirqd/010:05:240
441199441,5cyclictest9-21ksoftirqd/008:45:190
441199440,6cyclictest101ktimersoftd/011:45:240
4412994312,9cyclictest23382-21sensors_temp11:10:251
4412994311,10cyclictest19832-21dpkg08:50:111
441199437,5cyclictest9-21ksoftirqd/010:20:230
441199435,5cyclictest9-21ksoftirqd/010:55:180
441199434,5cyclictest9-21ksoftirqd/012:20:130
4411994340,2cyclictest111rcuc/007:15:190
4411994328,4cyclictest9-21ksoftirqd/010:25:350
441199432,6cyclictest9-21ksoftirqd/012:00:240
135191430,7getstats441499cyclictest12:27:163
441199425,5cyclictest9-21ksoftirqd/008:30:210
441199424,5cyclictest9-21ksoftirqd/010:15:300
4411994219,6cyclictest9-21ksoftirqd/008:15:240
139291420,0ptp4l401ktimersoftd/309:00:153
139291420,0ptp4l401ktimersoftd/308:30:253
4412994112,17cyclictest27299-21df_abs09:05:151
441199413,5cyclictest9-21ksoftirqd/011:02:180
4411994129,4cyclictest9-21ksoftirqd/010:00:170
441199412,5cyclictest9-21ksoftirqd/007:35:170
139291410,0ptp4l401ktimersoftd/312:20:363
441199407,5cyclictest9-21ksoftirqd/007:55:150
4411994035,3cyclictest9-21ksoftirqd/009:55:140
441199402,6cyclictest9-21ksoftirqd/010:10:170
441199402,5cyclictest9-21ksoftirqd/009:05:230
441199402,5cyclictest9-21ksoftirqd/008:53:350
441199400,5cyclictest9-21ksoftirqd/008:25:230
139291400,0ptp4l401ktimersoftd/310:20:193
139291400,0ptp4l401ktimersoftd/308:20:163
4413993921,16cyclictest33-21ksoftirqd/209:05:002
441299399,18cyclictest0-21swapper/112:05:271
4412993910,10cyclictest0-21swapper/107:20:101
441199396,5cyclictest9-21ksoftirqd/012:25:160
441199394,5cyclictest9-21ksoftirqd/008:07:270
441199394,5cyclictest9-21ksoftirqd/008:00:200
441199392,5cyclictest9-21ksoftirqd/009:20:500
441199392,5cyclictest9-21ksoftirqd/009:00:220
4411993922,5cyclictest9-21ksoftirqd/007:30:130
4411993919,4cyclictest9-21ksoftirqd/007:40:180
4414993833,3cyclictest41-21ksoftirqd/309:20:013
4414993832,4cyclictest41-21ksoftirqd/312:12:413
4414993832,4cyclictest41-21ksoftirqd/311:05:543
4414993832,4cyclictest41-21ksoftirqd/311:05:543
4414993832,4cyclictest41-21ksoftirqd/309:49:323
4414993832,4cyclictest41-21ksoftirqd/307:26:543
4414993831,4cyclictest41-21ksoftirqd/311:17:373
4414993831,4cyclictest41-21ksoftirqd/310:45:253
4414993831,4cyclictest41-21ksoftirqd/308:11:593
4413993832,4cyclictest33-21ksoftirqd/211:21:372
4413993832,4cyclictest33-21ksoftirqd/207:31:182
4412993813,7cyclictest18822-21hddtemp_smartct12:10:161
441199386,5cyclictest9-21ksoftirqd/009:10:140
441199384,5cyclictest9-21ksoftirqd/007:48:240
441199384,4cyclictest9-21ksoftirqd/008:40:260
441199383,5cyclictest9-21ksoftirqd/008:56:200
441199383,10cyclictest9-21ksoftirqd/012:30:200
4411993820,6cyclictest9-21ksoftirqd/011:25:170
4414993732,3cyclictest41-21ksoftirqd/311:53:243
4414993732,3cyclictest41-21ksoftirqd/309:43:183
4414993732,3cyclictest41-21ksoftirqd/308:05:123
4414993731,4cyclictest41-21ksoftirqd/311:25:313
4414993731,4cyclictest41-21ksoftirqd/310:53:463
4414993731,4cyclictest41-21ksoftirqd/307:11:383
4413993731,4cyclictest33-21ksoftirqd/211:42:542
4413993731,4cyclictest33-21ksoftirqd/210:04:592
4412993713,10cyclictest2332-21taskset10:26:121
4412993711,11cyclictest19551-21sh07:40:181
4412993710,10cyclictest19574-21sshd08:49:591
441199375,8cyclictest9-21ksoftirqd/009:27:540
441199375,5cyclictest9-21ksoftirqd/011:30:170
441199373,5cyclictest9-21ksoftirqd/011:07:080
441199373,5cyclictest9-21ksoftirqd/011:07:080
441199372,6cyclictest9-21ksoftirqd/011:57:590
4411993720,5cyclictest9-21ksoftirqd/007:10:130
4414993631,3cyclictest41-21ksoftirqd/311:40:303
4414993631,3cyclictest41-21ksoftirqd/309:30:003
4414993631,3cyclictest41-21ksoftirqd/308:55:273
4414993630,4cyclictest41-21ksoftirqd/311:14:083
4414993630,4cyclictest41-21ksoftirqd/310:29:433
4414993630,4cyclictest41-21ksoftirqd/310:17:563
4413993631,3cyclictest33-21ksoftirqd/209:24:002
4413993630,4cyclictest33-21ksoftirqd/212:23:022
4413993630,4cyclictest33-21ksoftirqd/210:44:552
4413993630,4cyclictest33-21ksoftirqd/210:35:042
4413993630,4cyclictest33-21ksoftirqd/210:33:152
4413993630,4cyclictest33-21ksoftirqd/209:50:352
4413993630,4cyclictest33-21ksoftirqd/208:42:032
4413993629,4cyclictest33-21ksoftirqd/209:19:222
4411993633,2cyclictest111rcuc/009:52:340
4411993632,3cyclictest9-21ksoftirqd/009:35:180
4411993631,4cyclictest9-21ksoftirqd/009:15:260
441199362,5cyclictest9-21ksoftirqd/011:10:160
4414993530,3cyclictest41-21ksoftirqd/310:04:243
4414993530,3cyclictest41-21ksoftirqd/308:19:473
4414993529,4cyclictest41-21ksoftirqd/309:34:303
4413993531,3cyclictest33-21ksoftirqd/212:00:002
4413993530,3cyclictest33-21ksoftirqd/212:10:002
4413993530,3cyclictest33-21ksoftirqd/207:36:002
4413993530,3cyclictest33-21ksoftirqd/207:14:502
4413993529,4cyclictest33-21ksoftirqd/212:26:312
4413993529,4cyclictest33-21ksoftirqd/212:16:042
4413993529,4cyclictest33-21ksoftirqd/211:02:152
4413993529,4cyclictest33-21ksoftirqd/209:11:152
4413993520,4cyclictest33-21ksoftirqd/207:15:262
441199354,8cyclictest9-21ksoftirqd/011:15:210
4411993528,4cyclictest9-21ksoftirqd/008:21:590
4414993429,3cyclictest41-21ksoftirqd/311:55:353
4414993429,3cyclictest41-21ksoftirqd/309:37:153
4414993429,3cyclictest41-21ksoftirqd/309:11:173
4414993429,3cyclictest41-21ksoftirqd/307:21:493
4414993428,4cyclictest41-21ksoftirqd/310:42:023
4414993428,4cyclictest41-21ksoftirqd/309:06:353
4414993428,4cyclictest41-21ksoftirqd/308:02:573
4413993429,3cyclictest33-21ksoftirqd/208:23:362
4413993429,3cyclictest33-21ksoftirqd/207:47:422
4413993428,4cyclictest33-21ksoftirqd/211:11:382
4413993428,4cyclictest33-21ksoftirqd/209:56:122
4413993428,4cyclictest33-21ksoftirqd/209:37:392
4413993428,4cyclictest33-21ksoftirqd/208:32:482
4413993427,4cyclictest33-21ksoftirqd/211:51:532
4414993328,3cyclictest41-21ksoftirqd/312:35:043
4414993328,3cyclictest41-21ksoftirqd/308:48:103
4414993328,3cyclictest41-21ksoftirqd/307:33:093
4414993327,4cyclictest41-21ksoftirqd/309:22:443
4414993322,9cyclictest41-21ksoftirqd/308:35:223
4413993328,3cyclictest33-21ksoftirqd/212:00:042
4413993328,3cyclictest33-21ksoftirqd/211:05:102
4413993328,3cyclictest33-21ksoftirqd/211:05:102
4413993328,3cyclictest33-21ksoftirqd/208:08:292
4413993328,3cyclictest33-21ksoftirqd/207:59:552
4413993327,4cyclictest33-21ksoftirqd/209:28:322
441299338,17cyclictest0-21swapper/112:30:111
441299337,17cyclictest0-21swapper/110:15:361
4411993320,5cyclictest9-21ksoftirqd/012:05:140
139291330,0ptp4l401ktimersoftd/312:00:213
4414993227,3cyclictest41-21ksoftirqd/312:07:063
4414993227,3cyclictest41-21ksoftirqd/311:33:303
4414993227,3cyclictest41-21ksoftirqd/310:13:533
4414993227,3cyclictest41-21ksoftirqd/307:38:133
4414993227,3cyclictest20726-21sh10:00:003
4413993228,3cyclictest33-21ksoftirqd/212:31:092
4413993227,3cyclictest33-21ksoftirqd/211:35:362
4413993227,3cyclictest33-21ksoftirqd/211:35:362
4413993227,3cyclictest33-21ksoftirqd/211:28:592
4413993227,3cyclictest33-21ksoftirqd/210:50:322
4413993227,3cyclictest33-21ksoftirqd/210:10:402
4413993227,3cyclictest33-21ksoftirqd/209:06:102
4413993226,4cyclictest33-21ksoftirqd/212:35:432
4413993226,4cyclictest33-21ksoftirqd/210:58:432
4413993226,4cyclictest33-21ksoftirqd/210:45:592
4413993226,4cyclictest33-21ksoftirqd/208:25:342
4413993225,4cyclictest33-21ksoftirqd/209:41:362
139291320,9ptp4l401ktimersoftd/311:21:573
4414993126,3cyclictest41-21ksoftirqd/312:19:453
4414993126,3cyclictest41-21ksoftirqd/307:50:003
4414993125,4cyclictest41-21ksoftirqd/310:59:363
4414993125,4cyclictest41-21ksoftirqd/307:52:013
4414993124,4cyclictest41-21ksoftirqd/308:54:113
4414993124,4cyclictest41-21ksoftirqd/308:44:333
4413993126,3cyclictest33-21ksoftirqd/211:47:042
4413993126,3cyclictest33-21ksoftirqd/209:34:142
4413993126,3cyclictest33-21ksoftirqd/208:54:592
4413993126,3cyclictest33-21ksoftirqd/208:47:582
4413993126,3cyclictest33-21ksoftirqd/207:53:452
4413993125,4cyclictest33-21ksoftirqd/210:21:082
4413993125,4cyclictest33-21ksoftirqd/208:17:562
4413993125,4cyclictest33-21ksoftirqd/207:24:242
4414993025,3cyclictest41-21ksoftirqd/307:56:233
4414993025,3cyclictest41-21ksoftirqd/307:43:433
4413993025,3cyclictest33-21ksoftirqd/209:45:372
4413993024,4cyclictest33-21ksoftirqd/211:32:082
139291300,0ptp4l401ktimersoftd/311:45:513
139291300,0ptp4l401ktimersoftd/308:26:343
4414992924,3cyclictest41-21ksoftirqd/311:02:123
4414992923,4cyclictest41-21ksoftirqd/312:30:583
4414992923,4cyclictest41-21ksoftirqd/311:39:193
4414992923,4cyclictest41-21ksoftirqd/311:39:193
441499291,3cyclictest121rcu_preempt07:15:263
4413992924,3cyclictest33-21ksoftirqd/207:41:142
4413992923,4cyclictest33-21ksoftirqd/210:19:312
4414992823,3cyclictest41-21ksoftirqd/309:51:533
4413992823,3cyclictest33-21ksoftirqd/210:25:492
4413992622,3cyclictest33-21ksoftirqd/208:55:232
4413992621,3cyclictest33-21ksoftirqd/207:26:422
4413992620,4cyclictest33-21ksoftirqd/208:00:032
4413992217,3cyclictest33-21ksoftirqd/212:10:222
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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