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2026-07-29 - 22:39
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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 rackdslot4.osadl.org (updated Wed Jul 29, 2026 12:45:59)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
138591223163,49phc2sys0-21swapper/307:08:203
138591223163,49phc2sys0-21swapper/307:08:203
9082206172,23sleep10-21swapper/107:08:381
9082206172,23sleep10-21swapper/107:08:371
6612201168,22sleep20-21swapper/207:05:422
6612201168,22sleep20-21swapper/207:05:412
6862199164,23sleep00-21swapper/007:06:000
6862199164,23sleep00-21swapper/007:06:000
1493921190,1sleep10-21swapper/111:55:211
497421170,2sleep30-21swapper/307:15:213
101328562,15sleep30-21swapper/307:10:013
250142660,5sleep125-21ksoftirqd/107:55:231
107372650,2sleep20-21swapper/207:25:282
1309996334,4cyclictest9-21ksoftirqd/010:20:000
1309996130,4cyclictest9-21ksoftirqd/011:55:150
1309995929,4cyclictest9-21ksoftirqd/008:30:250
1309995825,4cyclictest9-21ksoftirqd/011:15:130
1309995733,3cyclictest9-21ksoftirqd/009:15:190
1309995627,4cyclictest9-21ksoftirqd/011:35:140
1309995625,7cyclictest9-21ksoftirqd/008:25:250
1309995623,4cyclictest9-21ksoftirqd/008:40:140
1309995623,4cyclictest9-21ksoftirqd/007:50:240
138491540,1ptp4l401ktimersoftd/312:00:293
138491540,1ptp4l401ktimersoftd/309:41:573
138491540,1ptp4l401ktimersoftd/308:38:343
138491540,1ptp4l401ktimersoftd/308:38:343
1309995431,4cyclictest9-21ksoftirqd/011:30:270
1309995425,9cyclictest9-21ksoftirqd/009:00:010
1309995423,4cyclictest9-21ksoftirqd/011:00:240
1309995421,4cyclictest9-21ksoftirqd/011:05:220
55722530,2sleep10-21swapper/107:15:281
131099532,6cyclictest20239-21awk12:05:241
1309995327,4cyclictest9-21ksoftirqd/010:35:210
1309995322,5cyclictest9-21ksoftirqd/007:10:220
1309995321,9cyclictest9-21ksoftirqd/011:25:150
1309995319,4cyclictest9-21ksoftirqd/012:30:290
131099520,9cyclictest32449-21ps12:30:251
130999529,3cyclictest9-21ksoftirqd/010:45:140
1309995223,4cyclictest9-21ksoftirqd/010:00:230
131099512,5cyclictest0-21swapper/108:30:161
131099510,5cyclictest0-21swapper/111:40:131
1309995126,4cyclictest9-21ksoftirqd/008:05:160
1309995126,4cyclictest9-21ksoftirqd/008:05:160
131099503,5cyclictest241ktimersoftd/110:15:201
131099501,6cyclictest241ktimersoftd/112:10:161
1309995025,4cyclictest9-21ksoftirqd/011:45:260
1309995022,4cyclictest9-21ksoftirqd/009:55:230
1309995020,4cyclictest9-21ksoftirqd/011:20:270
131099493,6cyclictest10992-21latency_hist11:50:011
130999499,3cyclictest9-21ksoftirqd/007:25:010
130999498,7cyclictest9-21ksoftirqd/010:25:190
130999496,3cyclictest9-21ksoftirqd/008:15:230
130999494,3cyclictest9-21ksoftirqd/010:55:010
130999493,5cyclictest9-21ksoftirqd/008:10:250
130999491,7cyclictest9-21ksoftirqd/009:35:200
1309994914,9cyclictest9-21ksoftirqd/012:15:230
131099485,6cyclictest4479-21/usr/sbin/munin11:35:181
131099484,5cyclictest241ktimersoftd/109:30:261
131099482,7cyclictest19314-21fschecks_time08:50:161
131099482,5cyclictest241ktimersoftd/110:35:161
131099482,5cyclictest21380-21/usr/sbin/munin10:00:181
130999489,3cyclictest9-21ksoftirqd/008:45:140
130999489,2cyclictest9-21ksoftirqd/010:20:200
130999487,3cyclictest9-21ksoftirqd/012:25:140
130999487,2cyclictest121rcu_preempt11:10:290
130999485,7cyclictest9-21ksoftirqd/010:40:120
130999485,3cyclictest9-21ksoftirqd/012:35:190
130999483,5cyclictest9-21ksoftirqd/010:05:170
130999483,3cyclictest9-21ksoftirqd/007:34:590
130999482,7cyclictest9-21ksoftirqd/010:55:250
130999482,5cyclictest9-21ksoftirqd/007:15:160
1309994818,5cyclictest9-21ksoftirqd/011:40:140
1312994729,4cyclictest41-21ksoftirqd/312:23:563
131099475,6cyclictest2149-21/usr/sbin/munin09:20:181
131099475,6cyclictest17537-21sed09:50:211
131099474,5cyclictest17478-21sed12:00:251
131099473,6cyclictest23054-21sed08:55:251
131099473,5cyclictest25-21ksoftirqd/109:40:191
131099472,8cyclictest25437-21sort11:10:281
131099470,6cyclictest9232-21cstates07:25:141
1309994733,4cyclictest9-21ksoftirqd/009:10:000
130999472,7cyclictest9-21ksoftirqd/009:40:140
1309994726,7cyclictest9-21ksoftirqd/007:23:120
130999472,3cyclictest9-21ksoftirqd/011:50:130
130999472,3cyclictest9-21ksoftirqd/010:10:180
130999471,7cyclictest9-21ksoftirqd/007:55:250
131099465,5cyclictest25-21ksoftirqd/107:40:001
131099464,5cyclictest6088-21gpgv08:24:591
131099464,5cyclictest27491-21taskset09:05:231
131099464,5cyclictest27491-21taskset09:05:231
131099464,5cyclictest26464-21expr12:20:131
131099464,5cyclictest23548-21cat11:10:001
131099464,5cyclictest12733-21sed11:50:251
131099463,5cyclictest31162-21latency_hist09:15:001
131099462,8cyclictest1464-21cstates11:30:141
131099460,5cyclictest0-21swapper/109:00:261
130999464,8cyclictest9-21ksoftirqd/009:05:160
1309994633,4cyclictest9-21ksoftirqd/012:00:270
130999463,2cyclictest9-21ksoftirqd/007:45:190
1309994632,4cyclictest9-21ksoftirqd/007:40:140
1309994628,7cyclictest9-21ksoftirqd/012:10:170
130999462,3cyclictest9-21ksoftirqd/009:50:130
131099455,7cyclictest20183-21ps11:00:241
131099455,4cyclictest2185-21/usr/sbin/munin12:35:201
131099454,6cyclictest1824-21expr10:25:121
131099454,5cyclictest1568-21cat08:15:141
131099452,6cyclictest20359-21grep07:45:251
131099451,6cyclictest241ktimersoftd/110:20:241
131099450,9cyclictest16945-21ls08:45:161
1309994534,3cyclictest9-21ksoftirqd/009:20:170
130999452,5cyclictest9-21ksoftirqd/009:45:140
130999452,5cyclictest9-21ksoftirqd/008:50:140
131099441,6cyclictest4068-21/usr/sbin/munin10:30:131
131099441,6cyclictest24753-21cut10:05:191
131099441,6cyclictest0-21swapper/111:25:141
131099441,5cyclictest241ktimersoftd/111:15:141
130999442,9cyclictest9-21ksoftirqd/012:20:170
1309994427,9cyclictest9-21ksoftirqd/010:30:140
130999442,4cyclictest9-21ksoftirqd/008:20:190
130999442,3cyclictest9-21ksoftirqd/009:30:270
130999441,3cyclictest9-21ksoftirqd/009:25:210
131099433,6cyclictest2114-21cut07:10:191
131099432,6cyclictest25162-21mailstats12:15:251
131099432,5cyclictest241ktimersoftd/109:55:181
131099432,4cyclictest25-21ksoftirqd/111:00:001
131099431,7cyclictest22188-21irqrtprio07:50:201
131099431,6cyclictest241ktimersoftd/107:20:191
130999439,7cyclictest9-21ksoftirqd/008:00:140
130999432,7cyclictest9-21ksoftirqd/008:35:150
130999432,7cyclictest9-21ksoftirqd/008:35:150
130999431,3cyclictest9-21ksoftirqd/009:10:190
138491420,0ptp4l401ktimersoftd/312:14:063
131099423,7cyclictest14615-21sed09:45:181
131099422,6cyclictest241ktimersoftd/107:30:191
131099421,6cyclictest241ktimersoftd/110:40:261
1310994211,3cyclictest25-21ksoftirqd/108:26:591
1309994230,4cyclictest9-21ksoftirqd/009:03:320
1309994229,4cyclictest9-21ksoftirqd/012:10:000
131099413,7cyclictest10360-21grep09:35:251
131099412,6cyclictest25-21ksoftirqd/107:35:251
131099412,6cyclictest25-21ksoftirqd/107:35:251
130999415,2cyclictest9-21ksoftirqd/007:35:140
130999415,2cyclictest9-21ksoftirqd/007:35:140
138491400,1ptp4l401ktimersoftd/311:20:413
138491400,0ptp4l401ktimersoftd/309:25:163
138491390,0ptp4l401ktimersoftd/308:25:283
1312993931,3cyclictest41-21ksoftirqd/310:53:513
1312993920,17cyclictest41-21ksoftirqd/308:17:373
131099393,5cyclictest6210-21cat09:30:001
131099392,5cyclictest25-21ksoftirqd/112:28:411
131099392,5cyclictest241ktimersoftd/110:10:131
131099390,5cyclictest241ktimersoftd/108:11:071
138491380,1ptp4l401ktimersoftd/311:08:573
1312993832,4cyclictest41-21ksoftirqd/308:02:553
131099388,3cyclictest25-21ksoftirqd/109:15:231
131099385,6cyclictest25-21ksoftirqd/108:35:241
131099385,6cyclictest25-21ksoftirqd/108:35:241
1310993812,5cyclictest25-21ksoftirqd/108:06:561
1310993812,5cyclictest25-21ksoftirqd/108:06:561
131099380,5cyclictest25-21ksoftirqd/108:40:181
1311993732,3cyclictest33-21ksoftirqd/209:34:542
1311993731,4cyclictest33-21ksoftirqd/208:49:242
1312993630,4cyclictest41-21ksoftirqd/312:38:443
1312993630,4cyclictest41-21ksoftirqd/310:21:113
1312993630,4cyclictest41-21ksoftirqd/310:03:183
1312993630,4cyclictest41-21ksoftirqd/309:55:103
1312993630,4cyclictest41-21ksoftirqd/307:28:583
1312993615,18cyclictest41-21ksoftirqd/311:40:003
1312993611,24cyclictest1974-21kworker/3:010:32:243
1311993631,3cyclictest33-21ksoftirqd/207:53:152
1311993630,4cyclictest33-21ksoftirqd/212:26:232
1311993630,4cyclictest33-21ksoftirqd/212:15:442
1311993630,4cyclictest33-21ksoftirqd/209:51:182
1311993630,4cyclictest33-21ksoftirqd/209:13:152
1311993630,4cyclictest33-21ksoftirqd/208:40:342
1311993630,4cyclictest33-21ksoftirqd/207:43:532
131099364,5cyclictest14508-21hwlatdetect10:50:161
138491350,0ptp4l401ktimersoftd/310:10:173
138491350,0ptp4l401ktimersoftd/308:30:173
133482350,4sleep213351-21unixbench_singl09:40:262
1312993530,3cyclictest41-21ksoftirqd/309:36:353
1312993529,4cyclictest41-21ksoftirqd/312:32:183
1312993529,4cyclictest41-21ksoftirqd/312:17:263
1312993529,4cyclictest41-21ksoftirqd/311:29:403
1312993529,4cyclictest41-21ksoftirqd/310:59:393
1312993529,4cyclictest41-21ksoftirqd/309:46:103
1312993529,4cyclictest41-21ksoftirqd/309:05:543
1312993529,4cyclictest41-21ksoftirqd/309:05:533
1312993529,4cyclictest41-21ksoftirqd/308:49:323
1312993529,4cyclictest41-21ksoftirqd/307:36:243
1312993529,4cyclictest41-21ksoftirqd/307:36:233
1311993529,4cyclictest33-21ksoftirqd/211:34:012
1311993529,4cyclictest33-21ksoftirqd/211:17:232
1311993529,4cyclictest33-21ksoftirqd/211:10:052
1311993529,4cyclictest33-21ksoftirqd/209:46:242
1311993527,5cyclictest33-21ksoftirqd/208:28:462
138491340,0ptp4l401ktimersoftd/307:50:273
1312993428,4cyclictest41-21ksoftirqd/311:56:563
1312993428,4cyclictest41-21ksoftirqd/310:35:573
1312993428,4cyclictest41-21ksoftirqd/310:26:533
1312993428,4cyclictest41-21ksoftirqd/307:57:373
1311993429,3cyclictest33-21ksoftirqd/211:28:082
1311993429,3cyclictest33-21ksoftirqd/208:52:532
1311993428,4cyclictest33-21ksoftirqd/212:23:562
1311993428,4cyclictest33-21ksoftirqd/212:07:422
1311993428,4cyclictest33-21ksoftirqd/211:46:442
1311993428,4cyclictest33-21ksoftirqd/210:19:502
1311993428,4cyclictest33-21ksoftirqd/210:06:542
1311993428,4cyclictest33-21ksoftirqd/209:21:062
1311993428,4cyclictest33-21ksoftirqd/209:08:572
1311993428,4cyclictest33-21ksoftirqd/209:08:572
1311993428,4cyclictest33-21ksoftirqd/208:37:522
1311993428,4cyclictest33-21ksoftirqd/208:37:522
1311993428,4cyclictest33-21ksoftirqd/208:06:162
1311993428,4cyclictest33-21ksoftirqd/208:06:162
1311993428,4cyclictest33-21ksoftirqd/207:32:292
131099342,8cyclictest25-21ksoftirqd/108:00:241
138491330,0ptp4l401ktimersoftd/309:20:243
1312993328,3cyclictest41-21ksoftirqd/309:30:133
1312993328,3cyclictest41-21ksoftirqd/309:00:123
1312993327,4cyclictest41-21ksoftirqd/312:26:243
1312993327,4cyclictest41-21ksoftirqd/311:47:093
1312993327,4cyclictest41-21ksoftirqd/310:43:223
1312993327,4cyclictest41-21ksoftirqd/309:10:063
1312993327,4cyclictest41-21ksoftirqd/308:52:533
1311993328,3cyclictest33-21ksoftirqd/211:56:172
1311993328,3cyclictest33-21ksoftirqd/211:50:072
1311993328,3cyclictest33-21ksoftirqd/211:05:122
1311993328,3cyclictest33-21ksoftirqd/211:04:532
1311993328,3cyclictest33-21ksoftirqd/208:15:122
1311993327,4cyclictest33-21ksoftirqd/211:41:342
1311993327,4cyclictest33-21ksoftirqd/211:21:292
1311993327,4cyclictest33-21ksoftirqd/210:47:462
1311993327,4cyclictest33-21ksoftirqd/210:33:342
1311993327,4cyclictest33-21ksoftirqd/208:32:302
1311993327,4cyclictest33-21ksoftirqd/207:56:412
1311993327,3cyclictest33-21ksoftirqd/210:45:002
1312993227,3cyclictest41-21ksoftirqd/311:54:503
1312993227,3cyclictest41-21ksoftirqd/307:32:563
1312993226,4cyclictest41-21ksoftirqd/311:31:283
1312993226,4cyclictest41-21ksoftirqd/311:12:063
1312993226,4cyclictest41-21ksoftirqd/308:58:593
1312993226,4cyclictest41-21ksoftirqd/307:46:593
1312993226,4cyclictest41-21ksoftirqd/307:44:493
1311993227,3cyclictest33-21ksoftirqd/212:14:502
1311993227,3cyclictest33-21ksoftirqd/210:25:112
1311993227,3cyclictest33-21ksoftirqd/208:55:562
1311993227,3cyclictest33-21ksoftirqd/207:45:112
1311993227,3cyclictest33-21ksoftirqd/207:20:122
1311993226,4cyclictest33-21ksoftirqd/212:04:032
131099322,6cyclictest29749-21irqstats11:20:211
138491310,1ptp4l0-21swapper/311:15:183
1312993126,3cyclictest41-21ksoftirqd/311:04:153
1312993126,3cyclictest41-21ksoftirqd/308:40:513
1312993125,4cyclictest41-21ksoftirqd/307:22:393
1311993126,3cyclictest33-21ksoftirqd/210:22:072
1311993126,3cyclictest33-21ksoftirqd/208:24:412
1311993126,3cyclictest33-21ksoftirqd/207:39:062
1311993126,3cyclictest33-21ksoftirqd/207:39:052
1311993125,4cyclictest33-21ksoftirqd/210:13:082
1311993125,4cyclictest33-21ksoftirqd/207:11:272
1311993123,5cyclictest33-21ksoftirqd/212:39:352
138491300,0ptp4l401ktimersoftd/311:41:593
138491300,0ptp4l401ktimersoftd/310:09:573
138491300,0ptp4l401ktimersoftd/308:12:113
1312993024,4cyclictest41-21ksoftirqd/310:15:433
1312993024,4cyclictest41-21ksoftirqd/309:53:353
1311993025,3cyclictest33-21ksoftirqd/210:38:582
1311993025,3cyclictest33-21ksoftirqd/209:36:222
1311993024,4cyclictest33-21ksoftirqd/212:32:052
1311993024,4cyclictest33-21ksoftirqd/211:39:582
1312992924,3cyclictest41-21ksoftirqd/312:08:113
1312992924,3cyclictest41-21ksoftirqd/310:47:333
1312992924,3cyclictest41-21ksoftirqd/308:06:023
1312992924,3cyclictest41-21ksoftirqd/308:06:013
1312992923,4cyclictest41-21ksoftirqd/309:18:453
1311992924,3cyclictest33-21ksoftirqd/209:59:312
1311992924,3cyclictest33-21ksoftirqd/209:29:592
1311992924,3cyclictest33-21ksoftirqd/207:19:442
1311992923,4cyclictest33-21ksoftirqd/208:04:352
1310992923,4cyclictest25-21ksoftirqd/110:45:531
131199281,23cyclictest18487-21kworker/2:010:00:142
1311992722,3cyclictest33-21ksoftirqd/209:16:372
1311992722,3cyclictest33-21ksoftirqd/209:01:492
138491260,1ptp4l401ktimersoftd/308:20:193
1311992519,4cyclictest33-21ksoftirqd/210:51:512
1311992518,4cyclictest33-21ksoftirqd/208:11:002
1311991913,3cyclictest33-21ksoftirqd/210:56:552
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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