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2026-07-28 - 13:10
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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 Tue Jul 28, 2026 00:45:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
241872246201,35sleep10-21swapper/119:08:591
139491212168,32phc2sys0-21swapper/319:08:043
241562203170,22sleep20-21swapper/219:08:352
240472203170,22sleep00-21swapper/019:07:080
1874021760,6sleep22456199cyclictest21:10:222
2426728363,11sleep30-21swapper/319:10:023
2455999674,11cyclictest29333-21sort19:20:000
2455999643,10cyclictest17106-21latency_hist23:25:000
24562996329,4cyclictest41-21ksoftirqd/322:35:293
24562996129,10cyclictest41-21ksoftirqd/320:20:003
24562996125,4cyclictest41-21ksoftirqd/300:10:253
2455999614,12cyclictest10352-21grep23:10:140
24562996027,4cyclictest41-21ksoftirqd/300:20:263
2455999603,12cyclictest18391-21cut21:10:190
2455999603,11cyclictest23189-21sed20:14:590
2455999601,17cyclictest0-21swapper/019:50:000
2455999593,12cyclictest207-21systemd-journal21:25:000
2455999593,11cyclictest14823-21sed22:10:180
24562995719,4cyclictest41-21ksoftirqd/322:30:143
2455999573,18cyclictest6705-21latency_hist21:55:000
2455999573,11cyclictest29164-21cut20:25:190
2455999572,18cyclictest4126-21cat19:35:010
2455999572,11cyclictest27555-21sed23:45:190
2455999572,10cyclictest30353-21irqrtprio19:20:180
24562995618,3cyclictest41-21ksoftirqd/321:40:223
24562995617,8cyclictest41-21ksoftirqd/300:05:223
2455999564,10cyclictest8997-21strings20:50:210
2455999562,11cyclictest24122-21cut20:15:190
2455999561,12cyclictest24344-21cut22:30:200
24562995521,3cyclictest41-21ksoftirqd/319:40:273
24562995519,4cyclictest41-21ksoftirqd/319:25:253
24562995517,8cyclictest41-21ksoftirqd/320:50:243
24562995517,7cyclictest41-21ksoftirqd/319:35:263
24562995515,8cyclictest41-21ksoftirqd/321:30:253
2455999553,17cyclictest12925-21cat19:50:250
2455999553,12cyclictest12639-21ls22:05:200
2455999552,12cyclictest28480-21cut22:40:140
2455999552,11cyclictest3030-21sed20:40:000
24562995433,2cyclictest41-21ksoftirqd/320:55:173
24562995421,8cyclictest41-21ksoftirqd/320:25:203
24562995419,3cyclictest41-21ksoftirqd/322:55:303
24562995417,9cyclictest41-21ksoftirqd/319:55:263
24562995417,8cyclictest41-21ksoftirqd/320:00:183
24562995416,9cyclictest41-21ksoftirqd/323:05:243
24562995416,7cyclictest41-21ksoftirqd/321:50:253
24562995415,8cyclictest41-21ksoftirqd/321:20:253
2455999542,10cyclictest7579-21cut19:40:190
2455999541,11cyclictest4596-21switchtime20:40:250
2455999541,10cyclictest6991-21cstates00:10:150
2455999540,9cyclictest0-21swapper/023:30:230
139391540,1ptp4l401ktimersoftd/320:44:283
24562995319,8cyclictest41-21ksoftirqd/300:35:253
24562995318,7cyclictest41-21ksoftirqd/322:05:263
24562995317,8cyclictest41-21ksoftirqd/323:10:293
24562995317,8cyclictest41-21ksoftirqd/320:10:253
24562995316,6cyclictest41-21ksoftirqd/322:10:173
24562995315,7cyclictest41-21ksoftirqd/323:35:293
24562995315,7cyclictest41-21ksoftirqd/322:15:203
2455999532,17cyclictest27018-21grep22:35:220
2455999532,16cyclictest17362-21awk23:25:140
2455999532,12cyclictest11469-21date00:20:010
2455999532,11cyclictest3005-21sed22:55:010
2455999532,11cyclictest26041-21sed23:40:270
2455999532,11cyclictest22866-21cut23:35:200
2455999532,10cyclictest32136-21sed22:45:260
2455999531,16cyclictest407-21latency_hist20:35:000
2456299523,9cyclictest41-21ksoftirqd/300:15:173
24562995219,7cyclictest41-21ksoftirqd/322:20:133
24562995217,8cyclictest41-21ksoftirqd/323:50:243
24562995216,10cyclictest41-21ksoftirqd/320:30:283
24562995214,8cyclictest41-21ksoftirqd/323:15:273
2455999522,12cyclictest19525-21irqrtprio22:20:170
2456299512,3cyclictest121rcu_preempt21:40:003
24562995119,7cyclictest41-21ksoftirqd/321:55:273
24562995117,8cyclictest41-21ksoftirqd/323:45:153
24562995117,8cyclictest41-21ksoftirqd/323:25:273
24562995116,8cyclictest41-21ksoftirqd/323:00:143
24562995113,7cyclictest41-21ksoftirqd/321:15:243
24560995133,9cyclictest25-21ksoftirqd/123:00:001
2455999516,11cyclictest3088-21ps00:00:240
2455999513,9cyclictest13698-21awk00:25:010
2456299506,7cyclictest41-21ksoftirqd/319:55:003
2456299506,2cyclictest41-21ksoftirqd/322:29:593
24562995038,2cyclictest41-21ksoftirqd/323:40:203
24562995022,6cyclictest41-21ksoftirqd/320:45:173
24562995018,8cyclictest41-21ksoftirqd/320:20:213
24562995017,4cyclictest41-21ksoftirqd/321:00:163
24562995017,4cyclictest41-21ksoftirqd/321:00:163
24562995014,7cyclictest41-21ksoftirqd/300:30:173
2455999502,11cyclictest3810-21irqrtprio22:55:210
2455999501,15cyclictest14450-21sshd23:17:190
24562994927,11cyclictest41-21ksoftirqd/322:40:223
24562994915,9cyclictest41-21ksoftirqd/300:00:173
2456299490,2cyclictest121rcu_preempt22:45:133
2456299484,7cyclictest29317-21systemctl19:19:593
2456299483,3cyclictest41-21ksoftirqd/319:35:013
24562994819,6cyclictest41-21ksoftirqd/319:50:003
24562994817,7cyclictest41-21ksoftirqd/321:05:263
24562994817,4cyclictest41-21ksoftirqd/320:05:273
2456099480,4cyclictest30446-21wc22:45:011
2455999485,6cyclictest0-21swapper/019:35:270
2455999481,11cyclictest32178-21expr21:40:120
2456299475,5cyclictest41-21ksoftirqd/323:35:013
24562994717,5cyclictest41-21ksoftirqd/321:25:253
24562994717,3cyclictest41-21ksoftirqd/300:25:213
24562994716,8cyclictest41-21ksoftirqd/321:10:163
24562994716,7cyclictest41-21ksoftirqd/323:20:243
2455999478,4cyclictest9-21ksoftirqd/020:45:240
2456299463,7cyclictest41-21ksoftirqd/323:55:243
24562994614,8cyclictest41-21ksoftirqd/321:45:123
24562994612,7cyclictest41-21ksoftirqd/320:35:203
2455999461,7cyclictest29012-21apt-get23:50:030
2455999451,7cyclictest19955-21apt-get21:15:120
2455999451,11cyclictest10238-21/usr/sbin/munin20:55:170
2456299446,3cyclictest41-21ksoftirqd/322:50:133
24561994411,4cyclictest33-21ksoftirqd/223:45:282
2455999440,7cyclictest18657-21apt-get00:35:120
24562994333,3cyclictest41-21ksoftirqd/319:20:223
24562994313,3cyclictest41-21ksoftirqd/322:02:243
2455999430,8cyclictest30165-21ps21:35:190
24561994235,4cyclictest9941-21idleruntime-cro23:10:002
24561994212,4cyclictest33-21ksoftirqd/200:30:252
2455999423,7cyclictest12759-21apt-config21:00:000
2455999423,7cyclictest12759-21apt-config21:00:000
2455999422,8cyclictest5719-21ssh00:05:270
2455999421,37cyclictest14254-21fschecks_count19:55:180
2455999420,7cyclictest16239-21apt-get20:00:130
2456199414,10cyclictest33-21ksoftirqd/219:25:272
24561994136,3cyclictest33-21ksoftirqd/221:20:002
24561994135,3cyclictest33-21ksoftirqd/220:05:002
2456199412,3cyclictest33-21ksoftirqd/221:00:002
2455999413,8cyclictest26390-21diskstats20:20:160
2455999411,7cyclictest1981-21apt-config21:45:010
2456199407,4cyclictest33-21ksoftirqd/220:15:002
2456199403,5cyclictest121rcu_preempt23:10:152
24561994035,3cyclictest33-21ksoftirqd/200:05:012
24561994035,2cyclictest33-21ksoftirqd/223:59:592
24561994010,4cyclictest33-21ksoftirqd/221:40:122
24560994035,3cyclictest25-21ksoftirqd/123:59:591
2455999402,8cyclictest17690-21sensors_temp00:30:250
2455999401,7cyclictest24967-21df_inode19:10:150
24561993933,3cyclictest33-21ksoftirqd/222:40:002
24561993927,10cyclictest33-21ksoftirqd/219:50:202
24561993920,9cyclictest33-21ksoftirqd/223:20:002
24561993911,17cyclictest33-21ksoftirqd/220:30:132
24560993934,3cyclictest25-21ksoftirqd/120:00:001
24560993934,3cyclictest12568-21latency_hist21:00:011
2455999390,7cyclictest997-21ls19:25:260
2456199387,3cyclictest33-21ksoftirqd/223:35:282
2456199386,3cyclictest33-21ksoftirqd/200:20:002
2456199384,3cyclictest33-21ksoftirqd/219:35:272
2456199384,3cyclictest121rcu_preempt21:05:262
24561993835,2cyclictest33-21ksoftirqd/223:05:002
24561993833,3cyclictest33-21ksoftirqd/223:30:142
2456199381,4cyclictest0-21swapper/221:20:222
24560993834,2cyclictest25-21ksoftirqd/119:40:011
24560993833,3cyclictest25-21ksoftirqd/120:10:191
2456199376,4cyclictest33-21ksoftirqd/220:50:262
2456199376,3cyclictest33-21ksoftirqd/222:55:182
2456199376,3cyclictest33-21ksoftirqd/220:40:002
2456199375,3cyclictest33-21ksoftirqd/222:15:192
2456199375,3cyclictest33-21ksoftirqd/220:40:162
2456199374,3cyclictest121rcu_preempt20:25:272
24561993732,3cyclictest33-21ksoftirqd/219:40:192
24561993730,4cyclictest33-21ksoftirqd/219:14:592
2456199372,2cyclictest121rcu_preempt00:20:192
2456199371,5cyclictest30426-21latency_hist22:45:002
24560993733,2cyclictest25-21ksoftirqd/122:40:011
24560993732,3cyclictest25-21ksoftirqd/123:40:011
24560993732,3cyclictest25-21ksoftirqd/121:20:011
24560993732,3cyclictest25-21ksoftirqd/120:40:011
24560993731,3cyclictest25-21ksoftirqd/119:15:001
2455999371,7cyclictest19628-21meminfo20:05:200
2456199366,4cyclictest33-21ksoftirqd/222:50:242
2456199366,3cyclictest33-21ksoftirqd/223:50:162
2456199366,3cyclictest33-21ksoftirqd/222:05:172
2456199366,3cyclictest33-21ksoftirqd/222:05:002
24561993631,3cyclictest33-21ksoftirqd/219:15:542
24561993630,4cyclictest33-21ksoftirqd/220:15:432
24561993630,4cyclictest33-21ksoftirqd/200:10:552
24561993630,3cyclictest33-21ksoftirqd/223:40:132
24561993630,3cyclictest33-21ksoftirqd/220:00:002
24561993629,5cyclictest33-21ksoftirqd/200:38:152
24561993624,10cyclictest33-21ksoftirqd/219:45:142
2456199360,2cyclictest121rcu_preempt19:25:002
24560993633,2cyclictest25-21ksoftirqd/121:40:001
24560993632,2cyclictest25-21ksoftirqd/119:20:001
24560993631,3cyclictest25-21ksoftirqd/122:20:011
24560993631,3cyclictest25-21ksoftirqd/122:10:131
24560993631,3cyclictest25-21ksoftirqd/120:45:121
24560993631,3cyclictest25-21ksoftirqd/100:02:361
24560993630,4cyclictest25-21ksoftirqd/100:07:211
24560993630,3cyclictest25-21ksoftirqd/123:05:141
24559993610,5cyclictest9-21ksoftirqd/023:07:200
2456199356,3cyclictest33-21ksoftirqd/222:50:012
2456199354,3cyclictest33-21ksoftirqd/223:25:292
2456199354,3cyclictest33-21ksoftirqd/221:55:162
2456199354,3cyclictest33-21ksoftirqd/221:25:212
2456199353,2cyclictest33-21ksoftirqd/221:45:282
24561993530,2cyclictest33-21ksoftirqd/221:55:002
24561993529,3cyclictest33-21ksoftirqd/200:05:162
2456199352,5cyclictest14043-21cpuspeed22:10:122
2456199351,2cyclictest121rcu_preempt21:30:192
24560993531,3cyclictest25-21ksoftirqd/120:25:201
24560993530,3cyclictest25-21ksoftirqd/123:25:011
24560993530,3cyclictest25-21ksoftirqd/122:05:131
24560993530,3cyclictest25-21ksoftirqd/121:57:111
24560993530,3cyclictest25-21ksoftirqd/121:26:581
24560993530,3cyclictest25-21ksoftirqd/120:20:111
24560993529,4cyclictest25-21ksoftirqd/123:41:381
24560993529,4cyclictest25-21ksoftirqd/121:46:531
24560993529,4cyclictest25-21ksoftirqd/121:34:121
24560993529,4cyclictest25-21ksoftirqd/121:09:411
24560993529,4cyclictest25-21ksoftirqd/120:09:361
2456199345,3cyclictest33-21ksoftirqd/221:35:132
24561993429,3cyclictest33-21ksoftirqd/222:25:212
24561993429,3cyclictest33-21ksoftirqd/220:45:162
24561993428,3cyclictest33-21ksoftirqd/200:25:142
24561993420,3cyclictest33-21ksoftirqd/223:20:192
24560993430,3cyclictest25-21ksoftirqd/122:29:591
24560993430,2cyclictest25-21ksoftirqd/122:55:011
24560993430,2cyclictest25-21ksoftirqd/100:40:001
24560993429,3cyclictest25-21ksoftirqd/123:15:001
24560993429,3cyclictest25-21ksoftirqd/120:19:591
24560993429,2cyclictest23718-21ptp4l-jitter21:20:241
24560993428,4cyclictest25-21ksoftirqd/123:31:151
24560993428,4cyclictest25-21ksoftirqd/123:27:341
24560993428,4cyclictest25-21ksoftirqd/123:19:071
24560993428,4cyclictest25-21ksoftirqd/122:31:371
24560993428,4cyclictest25-21ksoftirqd/120:54:091
24560993428,4cyclictest25-21ksoftirqd/119:48:091
24560993428,3cyclictest25-21ksoftirqd/121:45:001
24560993427,4cyclictest25-21ksoftirqd/100:10:381
24560993421,4cyclictest25-21ksoftirqd/119:30:141
24559993429,3cyclictest9-21ksoftirqd/000:25:470
24559993428,4cyclictest9-21ksoftirqd/022:17:070
2455999341,8cyclictest26554-21sshd21:25:470
2456199335,2cyclictest121rcu_preempt21:00:162
2456199335,2cyclictest121rcu_preempt21:00:152
2456199334,3cyclictest33-21ksoftirqd/220:05:232
2456199333,3cyclictest33-21ksoftirqd/222:20:242
2456199333,2cyclictest33-21ksoftirqd/220:20:012
24561993327,3cyclictest33-21ksoftirqd/219:30:132
24560993330,2cyclictest25-21ksoftirqd/123:50:011
24560993329,2cyclictest25-21ksoftirqd/121:10:191
24560993328,3cyclictest25-21ksoftirqd/121:05:001
24560993328,3cyclictest25-21ksoftirqd/100:25:191
24560993327,4cyclictest25-21ksoftirqd/122:47:091
24560993327,4cyclictest25-21ksoftirqd/122:03:001
24560993327,4cyclictest25-21ksoftirqd/119:40:031
24560993327,3cyclictest25-21ksoftirqd/120:00:211
24560993327,3cyclictest25-21ksoftirqd/100:15:131
24559993327,4cyclictest9-21ksoftirqd/021:33:280
24561993220,4cyclictest33-21ksoftirqd/222:30:262
24560993228,2cyclictest412-21basename20:35:011
24560993227,3cyclictest25-21ksoftirqd/120:40:231
24560993227,3cyclictest25-21ksoftirqd/100:25:001
24560993226,4cyclictest25-21ksoftirqd/123:51:361
24560993225,5cyclictest25-21ksoftirqd/121:01:351
24559993226,4cyclictest9-21ksoftirqd/022:00:560
24559993226,4cyclictest9-21ksoftirqd/021:58:230
24559993225,4cyclictest9-21ksoftirqd/023:00:040
24560993126,3cyclictest25-21ksoftirqd/123:00:141
24560993126,3cyclictest25-21ksoftirqd/122:20:561
24560993126,2cyclictest25-21ksoftirqd/119:25:181
24559993125,4cyclictest9-21ksoftirqd/022:28:040
24560993026,2cyclictest25-21ksoftirqd/119:55:001
24560993025,3cyclictest25-21ksoftirqd/100:30:191
24559992923,4cyclictest9-21ksoftirqd/023:59:450
24560992823,3cyclictest25-21ksoftirqd/119:20:171
2456099270,2cyclictest121rcu_preempt21:55:001
2455999212,4cyclictest0-21swapper/021:05:190
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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