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2026-08-30 - 15:40
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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 rackdslot4.osadl.org (updated Sun Aug 30, 2026 12:45:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
208182215156,48sleep00-21swapper/007:08:210
138591205171,22phc2sys0-21swapper/307:05:433
207982203169,23sleep20-21swapper/207:08:072
205622202168,22sleep10-21swapper/107:05:451
3123721750,6sleep12124599cyclictest09:40:131
1099821500,6sleep32124799cyclictest11:10:153
2124599670,26cyclictest19064-21sed10:20:181
2124599631,24cyclictest27654-21awk07:20:231
2124599630,24cyclictest23775-21fschecks_count10:30:161
2124599620,25cyclictest17105-21uname09:10:221
2124599620,23cyclictest25263-21timedrift08:20:241
2124599610,23cyclictest24839-21/usr/sbin/munin07:15:211
2124599601,30cyclictest22547-21awk07:10:231
2124599601,24cyclictest19407-21irqrtprio08:10:181
2124599600,25cyclictest15898-21/usr/sbin/munin10:15:121
2124599600,23cyclictest4764-21/usr/sbin/munin09:50:211
2124599600,21cyclictest6050-21/usr/sbin/munin09:55:131
2124599590,23cyclictest8629-21/usr/sbin/munin11:05:141
2124599590,23cyclictest32373-21ps08:35:231
2124599590,20cyclictest14969-21ls10:10:241
21247995826,9cyclictest41-21ksoftirqd/312:05:013
21247995825,4cyclictest41-21ksoftirqd/312:20:003
2124599580,24cyclictest2389-21sendmail_mailqu11:55:231
2124599580,23cyclictest7356-21awk08:50:211
2124599571,22cyclictest31196-21cut10:45:141
2124599571,20cyclictest0-21swapper/110:09:301
2124599570,23cyclictest5540-21uptime07:40:281
2124599561,23cyclictest31042-21cstates11:50:131
2124599560,22cyclictest708-21chrt07:32:411
2124599560,21cyclictest22424-21sensors09:20:271
21247995533,2cyclictest41-21ksoftirqd/310:40:283
21247995527,4cyclictest41-21ksoftirqd/312:30:283
21247995525,8cyclictest41-21ksoftirqd/312:30:003
2124599550,23cyclictest14716-21uname12:20:191
2124599540,22cyclictest7886-21sed12:05:291
2124599540,21cyclictest30795-21chrt07:29:041
2124599540,21cyclictest29331-21cut08:30:181
21247995329,7cyclictest41-21ksoftirqd/312:20:193
21247995323,3cyclictest41-21ksoftirqd/312:05:193
21247995321,10cyclictest41-21ksoftirqd/312:35:013
21247995318,10cyclictest41-21ksoftirqd/307:15:153
2124599531,23cyclictest20450-21awk12:30:281
2124499535,9cyclictest9-21ksoftirqd/011:30:170
21247995225,6cyclictest41-21ksoftirqd/312:10:243
21247995224,3cyclictest41-21ksoftirqd/311:45:143
21247995223,4cyclictest41-21ksoftirqd/308:55:133
2124599520,28cyclictest15620-21sshd09:09:201
2124599520,19cyclictest28395-21dpkg11:45:101
2124499526,6cyclictest19805-21unixbench_singl11:25:270
21247995116,5cyclictest41-21ksoftirqd/309:05:273
2124599515,19cyclictest10958-21ls11:10:141
2124599510,28cyclictest29665-21sendmail_mailst10:40:251
2124599510,23cyclictest22639-21apt-config11:33:121
2124499516,9cyclictest9-21ksoftirqd/011:25:000
2124499514,8cyclictest9-21ksoftirqd/008:40:230
21247995022,7cyclictest41-21ksoftirqd/311:35:013
21247995015,8cyclictest41-21ksoftirqd/307:30:193
2124599500,24cyclictest2656-21gzip07:35:241
2124499506,4cyclictest9-21ksoftirqd/012:10:170
2124499505,9cyclictest9-21ksoftirqd/011:40:140
2124499505,7cyclictest9-21ksoftirqd/011:10:240
2124499504,6cyclictest9-21ksoftirqd/012:05:150
2124499503,9cyclictest9-21ksoftirqd/011:35:120
21247994923,2cyclictest41-21ksoftirqd/307:55:223
21247994921,7cyclictest41-21ksoftirqd/307:25:263
21247994917,3cyclictest41-21ksoftirqd/310:20:233
21247994915,4cyclictest41-21ksoftirqd/310:00:163
21247994913,8cyclictest41-21ksoftirqd/311:30:003
2124599491,26cyclictest17009-21irqstats08:05:181
2124599490,28cyclictest18575-21cstates09:15:121
2124599490,23cyclictest27848-21grep09:30:281
2124499495,4cyclictest9-21ksoftirqd/010:20:230
2124499494,9cyclictest9-21ksoftirqd/010:25:170
2124499492,7cyclictest9-21ksoftirqd/009:55:210
2124799483,3cyclictest121rcu_preempt10:10:013
21247994814,4cyclictest41-21ksoftirqd/307:40:193
2124599480,20cyclictest24404-21irqrtprio11:35:181
2124499486,9cyclictest9-21ksoftirqd/009:40:140
2124499485,9cyclictest9-21ksoftirqd/009:05:260
2124499484,9cyclictest9-21ksoftirqd/009:50:240
2124499484,10cyclictest9-21ksoftirqd/010:05:130
2124499483,9cyclictest9-21ksoftirqd/008:30:200
2124499483,7cyclictest9-21ksoftirqd/011:15:200
2124499481,7cyclictest9-21ksoftirqd/011:05:190
138491480,40ptp4l0-21swapper/307:10:013
2124799474,3cyclictest121rcu_preempt10:10:183
21247994722,7cyclictest41-21ksoftirqd/311:40:223
21247994720,7cyclictest41-21ksoftirqd/311:55:143
21247994720,7cyclictest41-21ksoftirqd/308:10:133
21247994719,7cyclictest41-21ksoftirqd/309:45:253
2124599471,20cyclictest0-21swapper/109:35:151
2124599471,19cyclictest0-21swapper/111:15:161
2124499475,9cyclictest9-21ksoftirqd/011:00:130
2124499475,8cyclictest9-21ksoftirqd/008:05:130
2124499473,9cyclictest9-21ksoftirqd/007:15:260
2124499472,9cyclictest9-21ksoftirqd/010:55:190
2124499472,6cyclictest9-21ksoftirqd/012:35:260
2124499472,10cyclictest9-21ksoftirqd/010:15:120
2124499470,13cyclictest9-21ksoftirqd/009:30:250
21247994619,6cyclictest41-21ksoftirqd/310:35:193
21247994615,7cyclictest41-21ksoftirqd/311:04:413
21247994615,7cyclictest41-21ksoftirqd/309:15:133
2124599461,21cyclictest24516-21missed_timers09:25:221
2124599460,19cyclictest18113-21cpuspeed_turbos11:25:131
2124499465,9cyclictest9-21ksoftirqd/010:30:140
2124499465,9cyclictest9-21ksoftirqd/008:35:170
2124499463,10cyclictest9-21ksoftirqd/008:45:120
2124499460,10cyclictest9-21ksoftirqd/009:50:010
21247994518,7cyclictest41-21ksoftirqd/309:40:173
21247994518,7cyclictest41-21ksoftirqd/308:20:223
21247994517,7cyclictest41-21ksoftirqd/308:45:123
21247994515,4cyclictest41-21ksoftirqd/308:20:013
21247994515,3cyclictest41-21ksoftirqd/311:35:143
21247994513,9cyclictest41-21ksoftirqd/309:03:363
21247994512,8cyclictest41-21ksoftirqd/308:00:183
21247994512,8cyclictest41-21ksoftirqd/308:00:183
21247994510,4cyclictest41-21ksoftirqd/307:55:003
2124599450,27cyclictest13376-21chrt12:19:201
2124499455,9cyclictest9-21ksoftirqd/008:20:160
2124499455,8cyclictest9-21ksoftirqd/011:45:130
2124499455,4cyclictest9-21ksoftirqd/012:25:140
2124499455,10cyclictest9-21ksoftirqd/012:15:140
2124499455,10cyclictest9-21ksoftirqd/009:15:190
2124499453,9cyclictest9-21ksoftirqd/009:20:160
2124499453,5cyclictest9-21ksoftirqd/007:30:140
2124499453,10cyclictest9-21ksoftirqd/009:35:160
2124499452,9cyclictest9-21ksoftirqd/010:55:010
21244994518,9cyclictest9-21ksoftirqd/008:50:260
2124799446,8cyclictest41-21ksoftirqd/309:50:163
21247994417,7cyclictest41-21ksoftirqd/310:50:133
21247994414,8cyclictest41-21ksoftirqd/311:20:003
21247994414,3cyclictest41-21ksoftirqd/308:25:173
21247994411,8cyclictest41-21ksoftirqd/308:50:223
2124499445,8cyclictest9-21ksoftirqd/012:30:150
2124499444,8cyclictest9-21ksoftirqd/007:14:000
2124499443,8cyclictest9-21ksoftirqd/009:25:240
2124499442,5cyclictest9-21ksoftirqd/010:40:150
21247994331,3cyclictest41-21ksoftirqd/311:20:153
2124799432,3cyclictest32699-21kworker/3:111:10:013
21247994319,7cyclictest41-21ksoftirqd/311:00:013
21247994318,7cyclictest41-21ksoftirqd/310:45:253
21247994318,7cyclictest41-21ksoftirqd/308:05:143
21247994318,4cyclictest41-21ksoftirqd/309:30:163
21247994315,4cyclictest41-21ksoftirqd/310:15:133
21247994314,3cyclictest41-21ksoftirqd/308:30:143
21247994313,10cyclictest41-21ksoftirqd/307:45:243
21247994310,6cyclictest41-21ksoftirqd/308:45:013
21246994337,4cyclictest20600-21sh09:20:012
2124599430,22cyclictest2308-21sed08:40:221
2124499436,6cyclictest0-21swapper/008:10:250
2124499434,8cyclictest9-21ksoftirqd/009:10:320
2124499432,5cyclictest9-21ksoftirqd/008:55:220
2124499432,10cyclictest9-21ksoftirqd/007:25:270
2124499431,8cyclictest9-21ksoftirqd/007:50:220
2124499431,6cyclictest9-21ksoftirqd/010:04:220
2124499430,1cyclictest0-21swapper/007:20:170
2124799427,8cyclictest41-21ksoftirqd/307:20:233
21247994228,5cyclictest41-21ksoftirqd/310:35:003
21247994215,8cyclictest41-21ksoftirqd/309:10:123
21247994212,4cyclictest41-21ksoftirqd/309:35:113
21247994210,8cyclictest41-21ksoftirqd/307:35:133
2124599421,21cyclictest9107-21idleruntime10:00:161
2124599421,18cyclictest27347-21ptp4l-jitter11:40:241
2124499423,9cyclictest9-21ksoftirqd/008:30:000
2124499423,5cyclictest9-21ksoftirqd/010:35:210
2124499423,10cyclictest9-21ksoftirqd/007:45:140
2124499421,7cyclictest9-21ksoftirqd/011:50:200
21247994127,5cyclictest41-21ksoftirqd/309:25:003
21247994115,6cyclictest41-21ksoftirqd/309:25:173
21247994112,6cyclictest41-21ksoftirqd/309:55:133
2124799410,2cyclictest121rcu_preempt11:50:143
2124499414,9cyclictest9-21ksoftirqd/012:00:290
2124499414,8cyclictest9-21ksoftirqd/010:10:110
2124499412,6cyclictest9-21ksoftirqd/008:00:260
2124499412,6cyclictest9-21ksoftirqd/008:00:250
2124499411,6cyclictest9-21ksoftirqd/012:21:260
2124499411,5cyclictest9-21ksoftirqd/008:17:480
2124599401,21cyclictest5088-21timerandwakeup12:00:301
2124599400,24cyclictest22641-21awk08:15:231
2124599400,18cyclictest9357-21smartctl12:10:151
2124499401,5cyclictest9-21ksoftirqd/011:55:120
21247993928,2cyclictest41-21ksoftirqd/308:35:213
21246993932,4cyclictest33-21ksoftirqd/209:41:562
21245993934,3cyclictest3007-21cron10:55:001
2124599390,24cyclictest10317-21timerwakeupswit07:50:231
2124499391,5cyclictest9-21ksoftirqd/007:40:130
21246993832,4cyclictest33-21ksoftirqd/211:24:422
21246993832,4cyclictest33-21ksoftirqd/208:27:542
21246993827,9cyclictest33-21ksoftirqd/209:30:272
2124599381,27cyclictest16621-21sshd12:25:161
2124599381,23cyclictest223-21systemd-journal07:59:091
2124499382,9cyclictest9-21ksoftirqd/007:35:130
21247993720,4cyclictest41-21ksoftirqd/310:25:163
21246993731,4cyclictest33-21ksoftirqd/209:59:332
21246993731,4cyclictest33-21ksoftirqd/209:00:002
21246993731,4cyclictest33-21ksoftirqd/208:43:162
21246993731,4cyclictest33-21ksoftirqd/207:56:412
21245993731,4cyclictest25-21ksoftirqd/109:48:091
2124599370,28cyclictest0-21swapper/110:55:111
2124599370,27cyclictest4910-21phc2sys08:45:211
50798360,3rtkit-daemon33-21ksoftirqd/212:16:522
21246993631,3cyclictest33-21ksoftirqd/210:30:102
21246993631,3cyclictest33-21ksoftirqd/207:16:592
21246993630,4cyclictest33-21ksoftirqd/211:32:512
21246993630,4cyclictest33-21ksoftirqd/210:01:342
21246993630,4cyclictest33-21ksoftirqd/209:27:062
21246993630,4cyclictest33-21ksoftirqd/209:01:072
2124599361,21cyclictest17334-21awk11:20:251
2124599360,27cyclictest22169-21grep10:25:231
2124599360,25cyclictest0-21swapper/108:00:251
2124599360,25cyclictest0-21swapper/108:00:251
2124599360,21cyclictest81372sleep107:47:051
2124599360,20cyclictest27730-21chrt10:37:151
2124499363,8cyclictest9-21ksoftirqd/010:50:010
21244993630,4cyclictest9-21ksoftirqd/009:04:190
21246993529,4cyclictest33-21ksoftirqd/212:21:302
21246993529,4cyclictest33-21ksoftirqd/211:51:582
21246993529,4cyclictest33-21ksoftirqd/209:10:352
21246993529,4cyclictest33-21ksoftirqd/208:49:242
21246993529,4cyclictest33-21ksoftirqd/208:04:112
21246993529,4cyclictest33-21ksoftirqd/208:04:112
21246993529,4cyclictest33-21ksoftirqd/207:11:482
21246993528,4cyclictest33-21ksoftirqd/207:27:322
2124599351,25cyclictest0-21swapper/111:00:191
21246993429,3cyclictest33-21ksoftirqd/212:34:272
21246993429,3cyclictest33-21ksoftirqd/209:22:192
21246993429,3cyclictest33-21ksoftirqd/208:37:132
21246993428,4cyclictest33-21ksoftirqd/212:00:512
21246993428,4cyclictest33-21ksoftirqd/209:39:472
21246993428,4cyclictest33-21ksoftirqd/208:23:252
21246993428,4cyclictest33-21ksoftirqd/207:22:592
2124599340,20cyclictest0-21swapper/109:01:581
2124599340,16cyclictest27463-21ps08:25:241
21246993329,2cyclictest33-21ksoftirqd/211:38:492
21246993328,3cyclictest33-21ksoftirqd/212:26:532
21246993328,3cyclictest33-21ksoftirqd/212:11:082
21246993328,3cyclictest33-21ksoftirqd/211:29:522
21246993328,3cyclictest33-21ksoftirqd/210:10:432
21246993327,4cyclictest33-21ksoftirqd/209:49:532
21246993327,4cyclictest33-21ksoftirqd/209:08:462
21246993327,4cyclictest33-21ksoftirqd/208:33:162
21246993327,4cyclictest33-21ksoftirqd/207:42:132
21246993327,4cyclictest33-21ksoftirqd/207:36:272
21246993326,4cyclictest33-21ksoftirqd/211:11:582
21246993227,3cyclictest33-21ksoftirqd/210:15:282
21246993226,4cyclictest33-21ksoftirqd/210:50:482
21245993213,16cyclictest21910-21grep12:35:161
21244993210,2cyclictest9-21ksoftirqd/007:55:140
21246993126,3cyclictest33-21ksoftirqd/211:45:012
21246993126,3cyclictest33-21ksoftirqd/210:39:102
21246993126,3cyclictest33-21ksoftirqd/207:34:142
21246993124,5cyclictest33-21ksoftirqd/210:29:382
21246993026,2cyclictest33-21ksoftirqd/211:18:452
21246993025,3cyclictest33-21ksoftirqd/210:06:032
21246993024,4cyclictest33-21ksoftirqd/210:45:422
21246993024,4cyclictest33-21ksoftirqd/208:12:342
21246992924,3cyclictest33-21ksoftirqd/209:51:042
21246992923,4cyclictest33-21ksoftirqd/212:39:362
21246992923,4cyclictest33-21ksoftirqd/211:07:442
21246992923,4cyclictest33-21ksoftirqd/211:01:342
21246992923,4cyclictest33-21ksoftirqd/210:43:382
21246992923,4cyclictest33-21ksoftirqd/207:45:102
21246992823,3cyclictest33-21ksoftirqd/212:05:532
21246992823,3cyclictest33-21ksoftirqd/207:52:222
21246992822,4cyclictest33-21ksoftirqd/208:08:512
2124699281,2cyclictest0-21swapper/211:59:142
2124599281,23cyclictest9100-21fschecks_time08:55:161
21246992722,3cyclictest33-21ksoftirqd/210:57:092
21246992722,3cyclictest33-21ksoftirqd/208:53:212
21246992621,3cyclictest33-21ksoftirqd/211:46:152
21246992621,3cyclictest33-21ksoftirqd/210:20:432
21246992620,4cyclictest33-21ksoftirqd/208:16:302
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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