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2025-12-24 - 04:42
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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 Wed Dec 24, 2025 00:45:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
79132202168,22sleep10-21swapper/119:07:201
81252200166,23sleep30-21swapper/319:09:593
81242200167,22sleep20-21swapper/219:09:572
80142195161,22sleep00-21swapper/019:08:310
3095021880,7sleep1842099cyclictest00:15:001
938121540,3sleep3842299cyclictest22:25:193
398921540,6sleep2842199cyclictest00:25:122
138491740,1ptp4l401ktimersoftd/323:00:243
842199637,11cyclictest7608-21gzip22:20:232
842199637,11cyclictest29625-21sed22:00:212
8420996332,4cyclictest25-21ksoftirqd/121:05:261
8420996231,3cyclictest25-21ksoftirqd/123:35:151
8420996129,4cyclictest25-21ksoftirqd/123:00:011
283062610,5sleep0111rcuc/022:00:000
842199603,17cyclictest0-21swapper/221:00:222
8421996012,15cyclictest28287-21logrotate00:09:092
842199599,9cyclictest31462-21cat19:55:182
842199594,11cyclictest17186-21cut23:45:202
842199592,17cyclictest0-21swapper/222:45:012
8420995926,4cyclictest25-21ksoftirqd/120:35:001
8420995926,4cyclictest25-21ksoftirqd/119:15:201
8420995917,7cyclictest25-21ksoftirqd/121:00:211
842199585,10cyclictest5874-21latency_hist20:10:002
842199583,11cyclictest29766-21latency00:10:192
842199578,11cyclictest31767-21irqrtprio22:05:212
842199577,9cyclictest21281-21expr23:55:152
842199575,10cyclictest7978-21ls21:15:262
8420995726,3cyclictest25-21ksoftirqd/123:15:261
8419995730,3cyclictest9-21ksoftirqd/000:05:150
842199568,16cyclictest16955-21latency19:25:212
842199567,10cyclictest31795-21idleruntime00:15:162
842199566,10cyclictest17312-21sed21:35:212
842199565,17cyclictest24977-21grep19:40:222
842199564,12cyclictest11073-21sed21:25:002
842199564,12cyclictest11073-21sed21:25:002
842199563,10cyclictest0-21swapper/219:15:212
8420995626,4cyclictest25-21ksoftirqd/120:25:141
8420995625,4cyclictest25-21ksoftirqd/100:30:241
8420995617,9cyclictest25-21ksoftirqd/123:00:161
8419995626,3cyclictest9-21ksoftirqd/021:30:000
842199557,9cyclictest4911-21missed_timers21:10:242
842199556,10cyclictest24485-21sed00:00:202
842199555,11cyclictest8437-21/usr/sbin/munin19:10:262
842199554,11cyclictest28589-21/usr/sbin/munin23:05:182
8420995524,10cyclictest25-21ksoftirqd/100:35:121
8420995523,4cyclictest25-21ksoftirqd/119:25:211
8419995527,3cyclictest9-21ksoftirqd/000:15:130
8419995525,8cyclictest9-21ksoftirqd/021:40:210
8419995525,3cyclictest9-21ksoftirqd/020:25:280
8419995521,4cyclictest9-21ksoftirqd/019:10:130
842199548,9cyclictest22514-21sensors19:35:232
842199547,17cyclictest19684-21sed20:35:192
842199546,11cyclictest15234-21threads21:30:272
842199545,10cyclictest26005-21egrep19:45:182
842199543,17cyclictest0-21swapper/223:40:192
8420995425,3cyclictest25-21ksoftirqd/120:35:271
8420995424,4cyclictest25-21ksoftirqd/121:55:211
8420995422,4cyclictest25-21ksoftirqd/120:45:181
8419995426,4cyclictest9-21ksoftirqd/022:20:020
8419995425,3cyclictest9-21ksoftirqd/020:20:220
8419995424,8cyclictest9-21ksoftirqd/020:15:210
8419995424,4cyclictest9-21ksoftirqd/019:25:280
842199532,15cyclictest0-21swapper/220:00:252
8420995323,4cyclictest25-21ksoftirqd/121:50:261
8420995322,4cyclictest25-21ksoftirqd/123:50:011
8420995322,4cyclictest25-21ksoftirqd/122:35:011
8420995321,10cyclictest25-21ksoftirqd/119:14:591
8419995317,9cyclictest9-21ksoftirqd/023:25:120
842199525,9cyclictest8902-21expr20:15:162
842199525,16cyclictest27170-21sed20:50:202
842199525,16cyclictest27170-21sed20:50:192
842199525,10cyclictest15208-21systemctl20:25:252
842199525,10cyclictest13761-21cat22:35:142
842199525,10cyclictest13761-21cat22:35:142
842199524,11cyclictest11593-21expr23:35:142
842199522,9cyclictest0-21swapper/223:25:192
842199522,17cyclictest0-21swapper/220:45:252
842199521,11cyclictest0-21swapper/222:55:132
8420995223,4cyclictest25-21ksoftirqd/121:25:191
8419995226,3cyclictest9-21ksoftirqd/021:20:210
8419995226,3cyclictest9-21ksoftirqd/021:20:200
8419995221,4cyclictest9-21ksoftirqd/021:05:240
842199518,11cyclictest8833-21grep22:25:132
842199517,11cyclictest2637-21timedrift22:10:282
842199516,9cyclictest22588-21sensors21:45:252
842199516,10cyclictest223-21systemd-journal23:32:582
842199515,12cyclictest31505-21cat23:10:152
842199513,15cyclictest0-21swapper/220:20:272
842199512,16cyclictest0-21swapper/200:20:222
842199512,10cyclictest0-21swapper/222:00:002
842199512,10cyclictest0-21swapper/220:40:282
842199510,10cyclictest0-21swapper/220:15:002
8419995123,3cyclictest9-21ksoftirqd/023:45:150
8419995123,3cyclictest9-21ksoftirqd/019:30:130
8419995122,6cyclictest9-21ksoftirqd/019:40:250
8419995122,4cyclictest9-21ksoftirqd/023:35:000
8419995122,4cyclictest9-21ksoftirqd/022:10:180
8419995122,4cyclictest9-21ksoftirqd/020:45:220
8419995122,3cyclictest9-21ksoftirqd/023:20:270
8419995121,4cyclictest9-21ksoftirqd/022:45:250
8419995121,3cyclictest9-21ksoftirqd/022:40:270
8419995120,4cyclictest9-21ksoftirqd/021:30:150
8419995119,3cyclictest9-21ksoftirqd/021:10:150
842199505,9cyclictest29902-21sensors19:50:272
842199505,7cyclictest19284-21if_enp1s021:40:172
842199505,16cyclictest13606-21cat19:20:132
842199505,10cyclictest1751-21df_abs23:15:142
842199501,17cyclictest0-21swapper/200:35:162
842199501,16cyclictest0-21swapper/200:30:192
8420995031,9cyclictest25-21ksoftirqd/123:45:011
8420995023,3cyclictest25-21ksoftirqd/122:35:171
8420995023,3cyclictest25-21ksoftirqd/122:35:171
8420995022,9cyclictest25-21ksoftirqd/122:25:141
8420995011,9cyclictest25-21ksoftirqd/120:20:291
8419995025,3cyclictest9-21ksoftirqd/022:20:230
8419995017,6cyclictest9-21ksoftirqd/022:35:000
8419995011,4cyclictest9-21ksoftirqd/022:05:200
188852500,2sleep10-21swapper/119:30:141
842199495,11cyclictest19526-21sed19:30:182
842199495,10cyclictest26387-21expr23:00:162
8420994936,3cyclictest25-21ksoftirqd/121:45:151
8420994935,3cyclictest25-21ksoftirqd/120:55:001
8420994935,3cyclictest25-21ksoftirqd/120:55:001
8420994933,4cyclictest25-21ksoftirqd/121:00:001
8420994922,4cyclictest25-21ksoftirqd/121:30:161
8420994919,4cyclictest25-21ksoftirqd/122:50:121
8419994920,3cyclictest9-21ksoftirqd/019:50:210
8419994918,4cyclictest9-21ksoftirqd/022:35:240
8419994918,4cyclictest9-21ksoftirqd/022:35:240
8419994917,4cyclictest9-21ksoftirqd/019:20:130
842199483,7cyclictest16183-21apt-get20:30:132
8420994827,8cyclictest25-21ksoftirqd/122:24:591
8419994819,3cyclictest9-21ksoftirqd/020:55:010
8419994819,3cyclictest9-21ksoftirqd/020:55:010
842199476,7cyclictest29206-21diskstats20:55:122
842199476,11cyclictest20241-21sed23:50:242
8420994733,4cyclictest25-21ksoftirqd/123:10:001
842099471,7cyclictest20903-21apt23:55:001
841999476,5cyclictest9-21ksoftirqd/023:05:270
8419994720,3cyclictest9-21ksoftirqd/023:20:010
8419994720,3cyclictest9-21ksoftirqd/000:20:190
8419994717,4cyclictest9-21ksoftirqd/019:35:130
138491470,0ptp4l401ktimersoftd/322:31:213
842199466,7cyclictest4327-21df_inode23:20:142
842199466,7cyclictest11655-21diskstats21:25:152
842099465,2cyclictest25-21ksoftirqd/121:14:591
8419994625,3cyclictest9-21ksoftirqd/021:00:000
8419994618,4cyclictest9-21ksoftirqd/023:40:140
842099453,2cyclictest121rcu_preempt21:35:221
8420994529,3cyclictest25-21ksoftirqd/122:15:191
842099452,2cyclictest121rcu_preempt00:00:261
842099451,2cyclictest121rcu_preempt19:50:141
8419994510,4cyclictest9-21ksoftirqd/023:00:240
8422994437,4cyclictest1058-21cron23:15:003
842099443,3cyclictest121rcu_preempt00:25:171
8420994429,4cyclictest25-21ksoftirqd/120:15:211
8420994429,4cyclictest25-21ksoftirqd/119:40:151
842099442,2cyclictest121rcu_preempt21:40:261
8420994414,8cyclictest25-21ksoftirqd/100:20:131
8419994431,3cyclictest9-21ksoftirqd/023:00:000
8419994418,4cyclictest9-21ksoftirqd/021:50:160
8419994414,4cyclictest9-21ksoftirqd/020:40:240
8419994413,5cyclictest741-21apt-key20:00:010
138491440,0ptp4l401ktimersoftd/323:58:023
842099438,7cyclictest25-21ksoftirqd/120:00:191
8420994338,3cyclictest25-21ksoftirqd/119:40:011
842099433,2cyclictest25-21ksoftirqd/123:55:221
8420994332,3cyclictest25-21ksoftirqd/100:15:181
8420994329,3cyclictest25-21ksoftirqd/122:00:191
8420994329,3cyclictest25-21ksoftirqd/120:40:191
8420994327,12cyclictest25-21ksoftirqd/123:35:011
8420994326,10cyclictest25-21ksoftirqd/121:20:131
8420994326,10cyclictest25-21ksoftirqd/121:20:131
842099432,2cyclictest121rcu_preempt23:20:241
842099430,3cyclictest121rcu_preempt00:05:151
842099430,2cyclictest121rcu_preempt22:10:291
841999434,3cyclictest1342-21cstates20:00:140
8419994329,3cyclictest9-21ksoftirqd/000:35:130
8419994316,3cyclictest9-21ksoftirqd/023:56:170
138491430,0ptp4l401ktimersoftd/300:06:493
842199425,7cyclictest2440-21meminfo21:05:202
842099424,3cyclictest25-21ksoftirqd/119:20:171
8419994232,3cyclictest9-21ksoftirqd/000:00:260
8419994229,4cyclictest9-21ksoftirqd/021:45:160
8419994214,3cyclictest9-21ksoftirqd/000:10:230
8420994136,3cyclictest25-21ksoftirqd/119:59:591
8420994133,2cyclictest25-21ksoftirqd/120:10:161
8420994127,4cyclictest25-21ksoftirqd/122:05:191
8420994125,3cyclictest25-21ksoftirqd/122:42:541
8420994124,4cyclictest25-21ksoftirqd/120:05:241
8420994113,8cyclictest25-21ksoftirqd/123:10:261
8420994113,8cyclictest25-21ksoftirqd/121:15:251
841999412,4cyclictest9-21ksoftirqd/023:35:220
8419994117,3cyclictest9-21ksoftirqd/021:00:220
8422994034,4cyclictest13111-21cron19:20:003
8420994013,8cyclictest25-21ksoftirqd/122:45:161
8419994029,3cyclictest9-21ksoftirqd/020:30:190
841999402,7cyclictest121rcu_preempt22:50:230
841999400,7cyclictest121rcu_preempt21:35:130
841999400,2cyclictest121rcu_preempt21:15:270
842199393,10cyclictest21622-21idleruntime22:50:162
8420993933,3cyclictest25-21ksoftirqd/119:49:591
8420993912,7cyclictest25-21ksoftirqd/123:25:141
841999399,4cyclictest9-21ksoftirqd/000:30:130
8419993934,3cyclictest9-21ksoftirqd/023:15:000
841999393,2cyclictest121rcu_preempt20:10:230
8419993927,3cyclictest9-21ksoftirqd/019:45:180
8419993810,3cyclictest9-21ksoftirqd/000:25:220
8422993730,4cyclictest41-21ksoftirqd/322:00:113
842199374,7cyclictest19655-21memory22:45:212
8419993733,3cyclictest9-21ksoftirqd/022:05:000
8419993727,3cyclictest9-21ksoftirqd/022:25:160
8422993630,4cyclictest41-21ksoftirqd/319:30:443
842199365,11cyclictest4440-21irqrtprio22:15:192
841999364,2cyclictest20704-21sshd20:37:380
8419993631,3cyclictest9-21ksoftirqd/019:15:210
8419993624,3cyclictest9-21ksoftirqd/023:55:000
138491360,0ptp4l401ktimersoftd/322:50:253
138491360,0ptp4l401ktimersoftd/320:30:263
138491360,0ptp4l401ktimersoftd/320:25:173
8422993530,3cyclictest41-21ksoftirqd/319:25:253
8422993529,4cyclictest41-21ksoftirqd/323:53:283
8422993529,4cyclictest41-21ksoftirqd/321:13:373
50798350,2rtkit-daemon506-21rtkit-daemon22:36:013
50798350,2rtkit-daemon506-21rtkit-daemon22:36:013
8422993428,4cyclictest41-21ksoftirqd/322:13:313
8422993428,4cyclictest41-21ksoftirqd/321:25:383
8422993428,4cyclictest41-21ksoftirqd/320:38:323
8422993428,4cyclictest41-21ksoftirqd/320:13:493
8422993428,4cyclictest41-21ksoftirqd/319:59:163
8422993428,4cyclictest41-21ksoftirqd/300:39:133
8422993428,4cyclictest41-21ksoftirqd/300:21:163
8421993428,4cyclictest33-21ksoftirqd/222:31:552
841999341,2cyclictest121rcu_preempt20:05:170
138491340,0ptp4l401ktimersoftd/320:25:003
8422993328,3cyclictest41-21ksoftirqd/323:45:133
8422993328,3cyclictest41-21ksoftirqd/323:40:123
8422993328,3cyclictest41-21ksoftirqd/320:00:143
8422993327,4cyclictest41-21ksoftirqd/322:46:373
8422993327,4cyclictest41-21ksoftirqd/319:22:493
8422993327,4cyclictest41-21ksoftirqd/300:31:153
842199333,7cyclictest23998-21df_inode21:50:152
8422993227,3cyclictest41-21ksoftirqd/323:31:133
8422993227,3cyclictest41-21ksoftirqd/321:45:003
8422993226,4cyclictest41-21ksoftirqd/323:18:463
8422993226,4cyclictest41-21ksoftirqd/321:15:143
8422993226,4cyclictest41-21ksoftirqd/320:58:383
8422993226,4cyclictest41-21ksoftirqd/320:53:283
8422993226,4cyclictest41-21ksoftirqd/320:53:283
8422993226,4cyclictest41-21ksoftirqd/319:51:133
8422993226,4cyclictest41-21ksoftirqd/300:02:193
8422993126,3cyclictest41-21ksoftirqd/322:21:303
8422993126,3cyclictest41-21ksoftirqd/322:09:543
8422993126,3cyclictest41-21ksoftirqd/321:23:533
8422993126,3cyclictest41-21ksoftirqd/321:23:533
8422993126,3cyclictest41-21ksoftirqd/320:09:433
8422993125,4cyclictest41-21ksoftirqd/321:50:283
8422993125,4cyclictest41-21ksoftirqd/321:38:013
8422993125,4cyclictest41-21ksoftirqd/319:48:333
138491310,23ptp4l35792irq/125-enp1s0-19:10:243
138491310,0ptp4l401ktimersoftd/323:05:283
138491310,0ptp4l401ktimersoftd/320:40:233
138491310,0ptp4l401ktimersoftd/319:35:433
8422993025,3cyclictest41-21ksoftirqd/323:37:133
8422993025,3cyclictest41-21ksoftirqd/323:24:313
8422993025,3cyclictest41-21ksoftirqd/322:40:213
8422993025,3cyclictest41-21ksoftirqd/320:46:023
8422993024,4cyclictest41-21ksoftirqd/321:35:003
8422993024,4cyclictest41-21ksoftirqd/321:09:243
138491300,0ptp4l401ktimersoftd/322:15:063
138491300,0ptp4l401ktimersoftd/319:40:023
138491300,0ptp4l401ktimersoftd/300:10:253
8422992923,4cyclictest41-21ksoftirqd/321:57:553
8422992923,4cyclictest41-21ksoftirqd/321:46:353
138491290,0ptp4l401ktimersoftd/321:00:523
8422992823,3cyclictest41-21ksoftirqd/323:28:383
8422992821,5cyclictest41-21ksoftirqd/300:28:063
8422992721,4cyclictest41-21ksoftirqd/322:59:083
138491270,0ptp4l401ktimersoftd/300:18:263
138491260,0ptp4l401ktimersoftd/320:18:593
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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