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2026-06-15 - 14:48
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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 Mon Jun 15, 2026 00:45:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
139491237171,22phc2sys0-21swapper/319:08:513
189252206172,22sleep10-21swapper/119:07:081
188602203170,22sleep20-21swapper/219:06:252
188582200166,22sleep00-21swapper/019:06:230
57212630,2sleep00-21swapper/000:15:270
19437996130,6cyclictest9-21ksoftirqd/020:15:250
19437996130,6cyclictest9-21ksoftirqd/020:15:240
1944099605,18cyclictest19684-21unixbench_singl22:30:293
1944099605,18cyclictest19684-21unixbench_singl22:30:293
19437996027,7cyclictest9-21ksoftirqd/022:00:150
1943899594,11cyclictest3613-21chrt19:43:541
19437995929,6cyclictest9-21ksoftirqd/021:10:000
19437995928,5cyclictest9-21ksoftirqd/023:35:120
19437995928,5cyclictest9-21ksoftirqd/000:10:140
19437995927,5cyclictest9-21ksoftirqd/023:20:170
19437995829,6cyclictest9-21ksoftirqd/021:25:140
19437995828,9cyclictest9-21ksoftirqd/022:10:150
19437995826,5cyclictest9-21ksoftirqd/023:45:250
19437995824,5cyclictest9-21ksoftirqd/021:15:160
19437995824,11cyclictest9-21ksoftirqd/021:25:000
19437995823,4cyclictest9-21ksoftirqd/023:10:120
19437995819,7cyclictest9-21ksoftirqd/000:25:120
1944099574,10cyclictest22623-21apt-config22:40:013
1943899579,18cyclictest10185-21date19:55:271
19437995727,5cyclictest9-21ksoftirqd/022:10:010
19437995724,6cyclictest9-21ksoftirqd/023:30:120
181592570,2sleep20-21swapper/220:15:012
1944099565,10cyclictest18219-21/usr/sbin/munin20:15:233
1944099565,10cyclictest18219-21/usr/sbin/munin20:15:233
1944099563,15cyclictest7118-21cat21:00:003
1943899562,12cyclictest25572-21awk23:50:251
1943799569,7cyclictest9-21ksoftirqd/019:15:130
19437995625,5cyclictest9-21ksoftirqd/019:15:000
19437995624,6cyclictest9-21ksoftirqd/023:05:220
19437995624,5cyclictest9-21ksoftirqd/023:45:000
19437995624,5cyclictest9-21ksoftirqd/022:55:130
19437995623,8cyclictest9-21ksoftirqd/019:50:250
19437995619,8cyclictest9-21ksoftirqd/021:10:110
1944099555,11cyclictest1300-21snmpd22:55:273
1943899552,13cyclictest6135-21cat19:50:001
19437995525,6cyclictest9-21ksoftirqd/022:30:150
19437995525,6cyclictest9-21ksoftirqd/022:30:150
19437995524,5cyclictest9-21ksoftirqd/020:25:200
19437995524,4cyclictest9-21ksoftirqd/022:20:130
19437995523,4cyclictest9-21ksoftirqd/019:45:150
19437995520,9cyclictest9-21ksoftirqd/020:55:220
1944099543,10cyclictest19660-21cstates19:10:123
1944099542,10cyclictest0-21swapper/319:25:253
1943899542,12cyclictest22527-21sed19:15:191
1943899542,11cyclictest29880-21sed00:00:231
1943899542,11cyclictest28227-21sed21:40:271
19437995440,3cyclictest9-21ksoftirqd/020:50:230
19437995423,5cyclictest9-21ksoftirqd/020:40:160
19437995422,5cyclictest9-21ksoftirqd/022:25:140
19437995421,8cyclictest9-21ksoftirqd/023:55:000
139391540,1ptp4l391rcuc/321:58:123
1943899533,17cyclictest19070-21cut20:15:201
1943899533,17cyclictest19070-21cut20:15:201
1943899532,12cyclictest1421-21cstates21:55:131
1943899532,11cyclictest25659-21df_abs20:30:151
1943899532,11cyclictest10424-21switchtime00:25:261
19437995326,8cyclictest9-21ksoftirqd/023:55:250
19437995326,8cyclictest9-21ksoftirqd/023:55:250
19437995321,5cyclictest9-21ksoftirqd/020:05:000
19437995320,5cyclictest9-21ksoftirqd/021:50:190
19439995213,6cyclictest33-21ksoftirqd/222:05:002
1943899525,18cyclictest13882-21/usr/sbin/munin20:05:161
1943899524,12cyclictest6719-21chrt23:12:311
1943899523,18cyclictest3960-21latency_hist00:15:011
1943899523,11cyclictest8674-21timedrift23:15:261
1943899522,11cyclictest21393-21sed22:35:201
1943899522,10cyclictest22912-21sed20:25:001
19437995224,5cyclictest9-21ksoftirqd/020:45:170
19437995223,4cyclictest9-21ksoftirqd/000:05:010
19437995222,5cyclictest9-21ksoftirqd/022:50:210
19437995222,5cyclictest9-21ksoftirqd/021:00:260
1944099512,11cyclictest238732sleep319:19:023
1944099511,10cyclictest0-21swapper/321:40:143
1943899517,11cyclictest31267-21awk20:40:221
1943899514,20cyclictest16366-21chrt23:30:591
1943899513,18cyclictest4170-21awk23:05:281
1943899513,12cyclictest6913-21sed22:05:201
1943899512,11cyclictest13184-21sed22:20:001
1943899512,10cyclictest17497-21expr20:10:251
1943899511,12cyclictest2351-21date23:05:001
1943799512,8cyclictest9-21ksoftirqd/000:30:150
19437995124,5cyclictest9-21ksoftirqd/000:35:120
1943799510,7cyclictest9-21ksoftirqd/022:45:010
1943899505,12cyclictest25992-21chrt19:20:361
1943899505,12cyclictest10272-21awk21:05:191
1943899504,12cyclictest5702-21sed20:55:181
1943899502,10cyclictest0-21swapper/119:50:241
1943799504,6cyclictest9-21ksoftirqd/019:30:160
1943799504,4cyclictest9-21ksoftirqd/020:10:130
19437995036,3cyclictest9-21ksoftirqd/023:25:170
1944099495,10cyclictest6454-21apt-config00:20:013
19439994914,5cyclictest33-21ksoftirqd/222:39:592
1943899495,19cyclictest17987-21awk21:20:201
1943899494,19cyclictest16389-21chrt21:18:051
1943899494,18cyclictest18699-21chrt23:35:321
1943899492,15cyclictest6939-21df_abs00:20:161
1943899492,10cyclictest248202sleep120:26:231
1943799498,3cyclictest9-21ksoftirqd/022:50:000
1943799497,3cyclictest9-21ksoftirqd/021:55:130
1943799492,9cyclictest9-21ksoftirqd/000:20:270
19437994928,4cyclictest9-21ksoftirqd/020:25:000
1943799491,8cyclictest0-21swapper/019:20:250
1943799490,11cyclictest9-21ksoftirqd/020:30:170
1943999486,10cyclictest33-21ksoftirqd/219:45:002
19439994814,6cyclictest33-21ksoftirqd/223:00:002
19439994812,7cyclictest33-21ksoftirqd/223:50:242
1943899484,19cyclictest23679-21chrt23:48:161
1943899484,18cyclictest9186-21chrt21:02:331
1943899484,11cyclictest1317-21runrttasks22:28:091
1943899482,11cyclictest132322sleep120:04:521
1943899482,10cyclictest210702sleep121:27:081
1943799485,5cyclictest9-21ksoftirqd/021:45:000
19437994822,6cyclictest9-21ksoftirqd/019:35:260
1943799482,10cyclictest9-21ksoftirqd/023:00:120
19437994819,6cyclictest9-21ksoftirqd/021:45:280
1944099474,9cyclictest207-21systemd-journal00:11:133
1943899475,10cyclictest30273-21sendmail_mailtr21:45:271
1943899475,10cyclictest22842-21/usr/sbin/munin21:30:241
1943899474,6cyclictest0-21swapper/120:45:121
1943899472,42cyclictest205642chrt19:10:201
1943799476,2cyclictest9-21ksoftirqd/019:55:190
1943799474,8cyclictest9-21ksoftirqd/019:40:180
1943799474,7cyclictest9-21ksoftirqd/023:15:190
1943799473,9cyclictest9-21ksoftirqd/020:05:150
1943799473,5cyclictest9-21ksoftirqd/021:30:260
1943799472,5cyclictest9-21ksoftirqd/021:40:000
19437994720,5cyclictest9-21ksoftirqd/019:29:150
1944099465,8cyclictest14930-21hddtemp_smartct21:15:173
1944099464,9cyclictest31326-21apt-get19:35:123
19439994632,11cyclictest33-21ksoftirqd/221:20:132
19439994628,16cyclictest33-21ksoftirqd/220:30:002
19439994615,4cyclictest33-21ksoftirqd/219:50:272
1943899464,6cyclictest0-21swapper/123:40:221
1943899463,18cyclictest25766-21taskset21:36:391
1943799468,3cyclictest9-21ksoftirqd/022:35:150
1943799464,7cyclictest9-21ksoftirqd/020:35:150
1943799464,5cyclictest9-21ksoftirqd/022:15:130
1943799462,6cyclictest9-21ksoftirqd/000:00:250
1944099456,8cyclictest17492-21sshd22:27:283
1944099453,7cyclictest911-21sshd21:54:323
1943999458,4cyclictest33-21ksoftirqd/223:05:242
19439994513,4cyclictest33-21ksoftirqd/221:50:142
19439994511,7cyclictest33-21ksoftirqd/221:10:242
1943899454,11cyclictest29659-21taskset20:37:381
1943899454,10cyclictest5678-21chrt22:03:391
1943899453,18cyclictest26409-21taskset23:55:031
1943899453,18cyclictest26409-21taskset23:55:021
1944099442,9cyclictest22447-21apt-get22:40:013
1943999449,4cyclictest33-21ksoftirqd/221:30:132
19439994412,8cyclictest33-21ksoftirqd/219:20:182
19439994411,6cyclictest33-21ksoftirqd/222:10:002
1943899442,11cyclictest27938-21expr22:50:131
1943899440,17cyclictest0-21swapper/122:55:261
1944099435,7cyclictest3470-21meminfo23:05:213
1943999439,5cyclictest33-21ksoftirqd/223:45:002
1943999437,7cyclictest33-21ksoftirqd/222:30:292
1943999437,7cyclictest33-21ksoftirqd/222:30:292
19439994337,3cyclictest17719-21ls22:30:002
19439994311,6cyclictest33-21ksoftirqd/221:40:142
19439994310,5cyclictest33-21ksoftirqd/223:05:002
19439994310,4cyclictest33-21ksoftirqd/200:10:162
1943899433,37cyclictest199222sleep122:33:071
1943899433,37cyclictest199222sleep122:33:071
1943899432,12cyclictest14114-21awk00:35:151
139391430,0ptp4l401ktimersoftd/320:42:583
139391430,0ptp4l401ktimersoftd/300:37:063
1944099423,8cyclictest6698-21ps22:05:193
19440994236,3cyclictest13245-21cron20:05:003
1943999429,6cyclictest33-21ksoftirqd/220:30:282
1943999429,5cyclictest33-21ksoftirqd/222:25:002
1943999428,6cyclictest33-21ksoftirqd/219:30:282
19439994238,3cyclictest33-21ksoftirqd/221:30:002
19439994237,3cyclictest33-21ksoftirqd/219:59:592
19439994211,4cyclictest33-21ksoftirqd/219:10:122
19439994210,9cyclictest33-21ksoftirqd/220:50:182
1943899425,5cyclictest0-21swapper/122:40:241
1943899421,9cyclictest0-21swapper/121:51:181
139391420,0ptp4l401ktimersoftd/319:20:193
1944099413,15cyclictest2518-21gnome-shell23:21:593
1943999418,5cyclictest33-21ksoftirqd/220:20:192
1943999416,8cyclictest33-21ksoftirqd/220:55:182
1943999416,6cyclictest33-21ksoftirqd/223:35:152
1943999415,8cyclictest33-21ksoftirqd/219:15:182
1943999415,6cyclictest33-21ksoftirqd/220:05:142
1943999414,9cyclictest33-21ksoftirqd/200:35:012
19439994134,4cyclictest33-21ksoftirqd/221:40:002
19439994112,3cyclictest33-21ksoftirqd/223:45:142
19439994110,9cyclictest33-21ksoftirqd/223:20:002
19439994110,6cyclictest33-21ksoftirqd/200:05:012
1943899410,10cyclictest0-21swapper/122:13:591
139391410,0ptp4l401ktimersoftd/323:10:273
1944099403,9cyclictest9016-21chrt23:16:343
1943999408,11cyclictest33-21ksoftirqd/222:50:132
1943999406,5cyclictest33-21ksoftirqd/200:35:192
1943999405,6cyclictest33-21ksoftirqd/222:15:152
1943999405,6cyclictest33-21ksoftirqd/221:05:272
1943999403,7cyclictest33-21ksoftirqd/220:00:232
19439994035,3cyclictest33-21ksoftirqd/200:20:002
19439994011,4cyclictest33-21ksoftirqd/223:10:222
139391400,0ptp4l401ktimersoftd/320:05:143
1943999398,9cyclictest33-21ksoftirqd/222:42:322
1943999398,6cyclictest33-21ksoftirqd/220:40:162
1943999396,6cyclictest33-21ksoftirqd/223:30:122
19439993935,2cyclictest33-21ksoftirqd/223:30:002
19439993935,2cyclictest33-21ksoftirqd/219:40:012
19439993911,4cyclictest33-21ksoftirqd/219:45:142
1944099385,7cyclictest2518-21gnome-shell20:34:583
1943999388,4cyclictest33-21ksoftirqd/220:15:242
1943999388,4cyclictest33-21ksoftirqd/220:15:232
1943999385,7cyclictest33-21ksoftirqd/221:15:162
1943999385,10cyclictest33-21ksoftirqd/222:45:152
1943999384,5cyclictest33-21ksoftirqd/219:25:182
19439993833,3cyclictest33-21ksoftirqd/200:25:002
19439993833,3cyclictest33-21ksoftirqd/200:05:292
1943999383,10cyclictest33-21ksoftirqd/223:55:242
1943999383,10cyclictest33-21ksoftirqd/223:55:242
1943999381,3cyclictest121rcu_preempt20:40:002
1944099371,8cyclictest27674-21ps23:55:233
1944099371,8cyclictest27674-21ps23:55:233
1943999377,5cyclictest33-21ksoftirqd/223:20:202
1943999373,5cyclictest33-21ksoftirqd/221:05:012
19439993732,3cyclictest33-21ksoftirqd/222:15:012
19439993732,3cyclictest33-21ksoftirqd/221:50:002
19440993630,4cyclictest41-21ksoftirqd/323:30:533
1943999365,5cyclictest33-21ksoftirqd/200:25:252
1943999363,6cyclictest33-21ksoftirqd/220:50:012
19440993530,3cyclictest41-21ksoftirqd/323:50:163
19440993530,3cyclictest41-21ksoftirqd/323:45:583
19440993529,4cyclictest41-21ksoftirqd/322:17:413
19440993529,4cyclictest41-21ksoftirqd/300:26:173
19439993530,3cyclictest33-21ksoftirqd/221:55:142
19438993529,4cyclictest25-21ksoftirqd/123:28:381
1944099344,7cyclictest1300-21snmpd20:14:233
19440993430,2cyclictest41-21ksoftirqd/321:00:263
19440993429,3cyclictest41-21ksoftirqd/322:15:003
19440993428,4cyclictest41-21ksoftirqd/300:19:563
1943899342,9cyclictest1300-21snmpd00:31:501
19438993428,4cyclictest25-21ksoftirqd/119:27:381
1943899340,5cyclictest0-21swapper/119:34:171
19440993329,3cyclictest41-21ksoftirqd/322:46:453
19440993327,4cyclictest41-21ksoftirqd/321:23:173
19440993326,4cyclictest41-21ksoftirqd/323:29:593
1943899332,6cyclictest0-21swapper/100:16:061
1943899330,4cyclictest0-21swapper/119:35:501
19440993228,3cyclictest41-21ksoftirqd/321:45:263
19440993227,3cyclictest41-21ksoftirqd/319:55:143
19440993226,4cyclictest41-21ksoftirqd/322:04:293
1944099321,9cyclictest21333-21irqrtprio20:20:193
19440993212,18cyclictest41-21ksoftirqd/319:32:243
1943899323,5cyclictest0-21swapper/121:14:061
19440993126,3cyclictest41-21ksoftirqd/323:02:363
19440993126,3cyclictest41-21ksoftirqd/320:36:233
19440993125,4cyclictest41-21ksoftirqd/323:41:003
19440993125,4cyclictest41-21ksoftirqd/321:13:463
1944099312,11cyclictest24572-21ps21:35:193
19438993125,4cyclictest25-21ksoftirqd/123:20:091
19440993025,3cyclictest41-21ksoftirqd/319:41:453
19440993025,3cyclictest41-21ksoftirqd/300:30:103
19440993024,4cyclictest41-21ksoftirqd/323:39:403
19440993024,4cyclictest41-21ksoftirqd/320:45:583
19438993025,3cyclictest25-21ksoftirqd/120:50:581
19438993024,4cyclictest25-21ksoftirqd/122:21:321
19440992924,3cyclictest41-21ksoftirqd/320:54:063
1943899291,18cyclictest0-21swapper/100:09:131
19440992822,4cyclictest41-21ksoftirqd/322:20:083
19440992721,3cyclictest41-21ksoftirqd/321:27:523
19440992621,3cyclictest41-21ksoftirqd/321:33:043
19440992621,3cyclictest41-21ksoftirqd/321:08:373
19440992621,3cyclictest41-21ksoftirqd/300:04:353
19440992620,4cyclictest41-21ksoftirqd/319:48:503
1944099261,10cyclictest0-21swapper/319:50:253
1943899263,21cyclictest272622sleep122:48:081
19440992520,3cyclictest41-21ksoftirqd/322:52:343
1944099241,14cyclictest0-21swapper/300:05:273
1944099240,9cyclictest0-21swapper/320:25:213
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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