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2026-08-18 - 01:50
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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
Compare latency of primary with shadow system
Characteristics of the 376 highest latencies:
System rack0slot2.osadl.org (updated Tue Aug 18, 2026 00:43:33)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
128024721010,1sleep71280248-21sh00:32:387
55319025116,30sleep70-21swapper/719:06:327
55300525141,7sleep40-21swapper/419:03:564
55297924736,8sleep50-21swapper/519:03:335
553555994640,5cyclictest1172497-21latency_hist23:47:437
55311523727,7sleep60-21swapper/619:05:266
553547993633,2cyclictest920630-21kworker/u16:1+flush-8:022:12:446
553555993531,3cyclictest980763-21latency_hist22:27:447
553547992926,2cyclictest861294-21kworker/u16:4+flush-8:022:53:106
553547992826,2cyclictest861294-21kworker/u16:4+flush-8:022:32:396
553542992826,2cyclictest1076722-21kworker/u16:4+events_unbound23:23:004
553542992824,3cyclictest861294-21kworker/u16:4+events_unbound22:23:084
553542992725,2cyclictest1195928-21kworker/u16:2+flush-8:000:27:584
553555992625,0cyclictest0-21swapper/722:38:027
553547992624,2cyclictest542557-21kworker/u16:4+events_unbound19:33:326
553546992624,2cyclictest644407-21kworker/u16:4+events_unbound20:16:035
553542992624,2cyclictest991717-21kworker/u16:1+flush-8:022:33:074
553542992624,2cyclictest861294-21kworker/u16:4+events_unbound21:58:004
553542992623,2cyclictest1004651-21kworker/u16:2+flush-8:023:02:594
553547992523,2cyclictest1004811-21kworker/u16:3+events_unbound23:02:586
553546992523,2cyclictest624931-21kworker/u16:2+events_unbound20:41:275
553546992523,2cyclictest624931-21kworker/u16:2+events_unbound19:56:565
553546992523,2cyclictest1148251-21kworker/u16:2+events_unbound23:37:265
553542992523,2cyclictest1004811-21kworker/u16:3+flush-8:023:47:584
553542992523,2cyclictest1004811-21kworker/u16:3+flush-8:023:47:584
553542992523,2cyclictest1004811-21kworker/u16:3+flush-8:000:08:224
553547992422,2cyclictest779481-21kworker/u16:1+flush-8:021:35:216
553547992422,2cyclictest750785-21kworker/u16:3+flush-8:021:07:446
553547992422,2cyclictest750785-21kworker/u16:3+flush-8:021:07:446
553547992422,2cyclictest615072-21kworker/u16:1+flush-8:019:48:116
553547992422,2cyclictest1122497-21kworker/u16:0+flush-8:023:45:136
553547992421,2cyclictest1004811-21kworker/u16:3+flush-8:000:17:496
553546992422,2cyclictest907171-21kworker/u16:0+events_unbound21:55:145
553546992422,2cyclictest813291-21kworker/u16:3+events_unbound21:52:395
553546992422,2cyclictest813291-21kworker/u16:3+events_unbound21:52:395
553546992422,2cyclictest693057-21kworker/u16:1+events_unbound20:29:085
553546992422,2cyclictest644407-21kworker/u16:4+events_unbound20:54:485
553546992422,2cyclictest634805-21kworker/u16:0+flush-8:020:18:035
553546992422,2cyclictest553776-21kworker/u16:0+events_unbound19:20:445
553546992422,2cyclictest1195928-21kworker/u16:2+events_unbound23:59:045
553546992422,2cyclictest1004811-21kworker/u16:3+events_unbound23:27:345
553546992420,3cyclictest1075265-21kworker/u16:1+flush-8:023:07:435
55355599230,21cyclictest586279-21latency_hist19:22:457
553547992321,2cyclictest861294-21kworker/u16:4+events_unbound22:43:046
553547992321,2cyclictest644407-21kworker/u16:4+flush-8:020:57:596
553547992321,2cyclictest644407-21kworker/u16:4+events_unbound20:44:076
553547992321,2cyclictest634805-21kworker/u16:0+events_unbound20:18:006
553547992321,2cyclictest499165-21kworker/u16:3+events_unbound19:41:316
553546992321,2cyclictest991717-21kworker/u16:1+events_unbound22:31:215
553546992321,2cyclictest920630-21kworker/u16:1+events_unbound22:13:305
553546992321,2cyclictest813291-21kworker/u16:3+events_unbound21:21:075
553546992321,2cyclictest644407-21kworker/u16:4+events_unbound20:59:515
553546992321,2cyclictest644407-21kworker/u16:4+events_unbound20:51:235
55355599220,20cyclictest1064630-21latency_hist23:02:437
553547992220,2cyclictest634805-21kworker/u16:0+events_unbound20:14:196
553547992220,2cyclictest1004811-21kworker/u16:3+flush-8:023:48:026
553547992220,2cyclictest1004811-21kworker/u16:3+flush-8:023:48:026
553547992220,2cyclictest1004811-21kworker/u16:3+events_unbound23:08:016
553547992220,2cyclictest1004811-21kworker/u16:3+events_unbound23:08:016
553546992220,2cyclictest624931-21kworker/u16:2+events_unbound20:43:115
553546992220,2cyclictest624931-21kworker/u16:2+events_unbound19:51:475
553546992220,2cyclictest499165-21kworker/u16:3+flush-8:019:14:035
553546992220,2cyclictest1182823-21kworker/u16:1+events_unbound23:53:285
553546992220,2cyclictest1182823-21kworker/u16:1+events_unbound23:53:285
553546992220,2cyclictest1076722-21kworker/u16:4+flush-8:023:12:175
553546992220,2cyclictest1076722-21kworker/u16:4+flush-8:023:12:175
553546992219,2cyclictest553776-21kworker/u16:0+events_unbound19:32:445
121839522219,2sleep41004811-21kworker/u16:3+events_unbound00:03:434
553555992119,1cyclictest0-21swapper/719:43:007
553547992119,2cyclictest991717-21kworker/u16:1+events_unbound22:37:586
553547992119,2cyclictest644407-21kworker/u16:4+events_unbound20:25:316
553547992119,2cyclictest624931-21kworker/u16:2+events_unbound20:28:316
553547992119,2cyclictest1196605-21kworker/u16:4+flush-8:000:04:416
55354799210,21cyclictest0-21swapper/621:19:556
553546992119,2cyclictest750580-21kworker/u16:0+events_unbound21:08:255
553546992119,2cyclictest750580-21kworker/u16:0+events_unbound21:08:255
553546992119,2cyclictest644407-21kworker/u16:4+events_unbound20:27:075
553546992119,2cyclictest624931-21kworker/u16:2+flush-8:019:42:585
553546992119,2cyclictest624931-21kworker/u16:2+events_unbound20:01:315
553546992119,2cyclictest1122497-21kworker/u16:0+events_unbound23:46:105
553542992119,2cyclictest750580-21kworker/u16:0+flush-8:021:33:154
553542992118,2cyclictest800831-21kworker/u16:2+flush-8:021:18:024
553547992018,2cyclictest861294-21kworker/u16:4+events_unbound22:52:046
553547992018,2cyclictest624931-21kworker/u16:2+flush-8:019:59:276
553546992018,2cyclictest932821-21kworker/u16:2+events_unbound22:22:435
553546992018,2cyclictest750580-21kworker/u16:0+flush-8:021:23:555
553546992018,2cyclictest731180-21kworker/u16:1+events_unbound20:37:315
553546992018,2cyclictest542557-21kworker/u16:4+events_unbound19:26:115
553546992018,2cyclictest499165-21kworker/u16:3+flush-8:019:28:085
553546992018,2cyclictest3293358-21kworker/u16:2+flush-8:019:09:525
553546992018,2cyclictest1076722-21kworker/u16:4+events_unbound23:28:275
553546992018,2cyclictest1004811-21kworker/u16:3+flush-8:022:48:245
553546992018,2cyclictest1004811-21kworker/u16:3+events_unbound23:18:465
553542992018,2cyclictest1039034-21kworker/u16:0+events_unbound22:58:114
553555991914,4cyclictest1302-21snmpd22:48:037
553547991917,2cyclictest861294-21kworker/u16:4+events_unbound21:53:286
553547991917,2cyclictest499165-21kworker/u16:3+flush-8:019:27:066
553547991917,2cyclictest1075265-21kworker/u16:1+events_unbound23:13:166
553547991916,2cyclictest1076722-21kworker/u16:4+events_unbound23:18:036
553546991917,2cyclictest499165-21kworker/u16:3+events_unbound19:40:295
553546991917,2cyclictest1242107-21kworker/u16:0+flush-8:000:23:105
553546991917,2cyclictest1242107-21kworker/u16:0+events_unbound00:16:295
553546991916,2cyclictest800831-21kworker/u16:2+events_unbound21:47:445
553542991917,2cyclictest800831-21kworker/u16:2+flush-8:021:48:064
553542991917,2cyclictest800831-21kworker/u16:2+flush-8:021:48:064
553555991812,4cyclictest1229445-21ssh00:08:077
553547991816,2cyclictest800831-21kworker/u16:2+events_unbound21:48:066
553547991816,2cyclictest800831-21kworker/u16:2+events_unbound21:48:066
553547991816,2cyclictest644407-21kworker/u16:4+events_unbound20:05:456
553547991816,2cyclictest553776-21kworker/u16:0+events_unbound19:30:276
553547991816,2cyclictest499165-21kworker/u16:3+flush-8:019:17:586
553546991816,2cyclictest861294-21kworker/u16:4+flush-8:022:03:055
553546991816,2cyclictest634805-21kworker/u16:0+events_unbound20:08:335
553542991815,3cyclictest1004811-21kworker/u16:3+flush-8:023:13:154
553555991712,4cyclictest861092-21latency_hist21:37:447
55355599170,1cyclictest0-21swapper/720:23:097
553547991715,2cyclictest800831-21kworker/u16:2+events_unbound21:44:296
553547991715,2cyclictest750785-21kworker/u16:3+flush-8:021:03:396
553547991715,2cyclictest499165-21kworker/u16:3+events_unbound19:13:346
553547991715,2cyclictest1195928-21kworker/u16:2+events_unbound00:15:526
553547991715,2cyclictest1004811-21kworker/u16:3+flush-8:023:23:136
553547991715,2cyclictest1004811-21kworker/u16:3+events_unbound00:08:326
553546991715,2cyclictest991717-21kworker/u16:1+events_unbound22:39:065
553546991715,2cyclictest813291-21kworker/u16:3+events_unbound21:39:225
553546991715,2cyclictest750580-21kworker/u16:0+events_unbound21:06:125
553546991715,2cyclictest644407-21kworker/u16:4+flush-8:020:03:115
553546991715,2cyclictest1004811-21kworker/u16:3+events_unbound22:44:445
553542991714,2cyclictest1004811-21kworker/u16:3+flush-8:023:17:494
553555991613,2cyclictest1302-21snmpd21:25:167
55355599160,14cyclictest0-21swapper/700:33:087
553547991614,2cyclictest861294-21kworker/u16:4+events_unbound21:58:296
553547991614,2cyclictest750785-21kworker/u16:3+events_unbound20:50:176
553547991614,2cyclictest634805-21kworker/u16:0+flush-8:020:07:556
553547991614,2cyclictest624931-21kworker/u16:2+events_unbound20:36:266
553547991614,2cyclictest624931-21kworker/u16:2+events_unbound19:55:356
553547991614,2cyclictest1122497-21kworker/u16:0+events_unbound23:57:166
553547991614,2cyclictest1122497-21kworker/u16:0+events_unbound23:57:166
553547991614,2cyclictest1004811-21kworker/u16:3+flush-8:022:59:046
553547991614,2cyclictest1004811-21kworker/u16:3+events_unbound23:58:426
553547991612,3cyclictest1244039-21kworker/u16:1+flush-8:000:33:096
553546991614,2cyclictest968823-21kworker/u16:0+flush-8:022:37:395
553546991614,2cyclictest861294-21kworker/u16:4+flush-8:022:08:125
553546991614,2cyclictest861294-21kworker/u16:4+events_unbound22:22:475
553546991614,2cyclictest800831-21kworker/u16:2+events_unbound21:33:095
553546991614,2cyclictest750580-21kworker/u16:0+events_unbound21:32:435
553546991614,2cyclictest1195928-21kworker/u16:2+flush-8:000:08:275
553546991614,2cyclictest1004811-21kworker/u16:3+events_unbound23:15:115
553542991614,2cyclictest779481-21kworker/u16:1+events_unbound21:23:014
553542991613,2cyclictest750785-21kworker/u16:3+flush-8:020:58:164
553542991613,2cyclictest1195928-21kworker/u16:2+flush-8:000:23:044
553555991513,1cyclictest0-21swapper/723:53:087
553555991513,1cyclictest0-21swapper/723:53:087
553555991510,4cyclictest849128-21latency_hist21:32:447
55355599150,14cyclictest615344-21latency_hist19:37:447
55355599150,13cyclictest0-21swapper/720:13:087
55354799158,7cyclictest750785-21kworker/u16:3+flush-8:020:53:106
553547991513,2cyclictest861294-21kworker/u16:4+events_unbound22:17:056
553547991513,2cyclictest731180-21kworker/u16:1+events_unbound20:42:186
553547991513,2cyclictest553776-21kworker/u16:0+flush-8:019:09:266
553546991513,2cyclictest1268248-21kworker/u16:3+events_unbound00:32:565
55354699150,15cyclictest0-21swapper/522:58:185
55354299150,1cyclictest0-21swapper/421:08:354
55354299150,1cyclictest0-21swapper/421:08:354
55354299150,14cyclictest865448-21cut21:38:044
7529922140,0sleep40-21swapper/420:48:034
55355599149,4cyclictest897049-21latency_hist21:52:447
55355599149,4cyclictest897049-21latency_hist21:52:447
553555991411,2cyclictest789311-21diskmemload23:23:107
553555991411,2cyclictest125-21kswapd023:48:097
553555991411,2cyclictest125-21kswapd023:48:097
553555991410,3cyclictest1302-21snmpd20:08:117
553555991410,3cyclictest1302-21snmpd19:52:257
55355599140,1cyclictest0-21swapper/719:12:467
55355599140,1cyclictest0-21swapper/700:13:067
553547991412,2cyclictest861294-21kworker/u16:4+events_unbound22:18:486
553547991412,2cyclictest1122497-21kworker/u16:0+events_unbound23:35:566
553546991412,2cyclictest907171-21kworker/u16:0+events_unbound22:00:465
553546991412,2cyclictest800831-21kworker/u16:2+flush-8:021:13:255
553546991412,2cyclictest1039034-21kworker/u16:0+flush-8:022:56:155
553546991412,2cyclictest1004811-21kworker/u16:3+events_unbound23:38:505
553542991413,1cyclictest0-21swapper/423:44:214
553542991413,1cyclictest0-21swapper/400:00:174
55354299140,1cyclictest0-21swapper/422:56:354
55354299140,14cyclictest0-21swapper/423:56:484
55354299140,14cyclictest0-21swapper/423:56:484
55354299140,14cyclictest0-21swapper/422:37:494
55354299140,14cyclictest0-21swapper/422:30:344
55354299140,14cyclictest0-21swapper/421:17:344
55355599139,3cyclictest1302-21snmpd23:32:167
55355599139,3cyclictest1302-21snmpd21:57:087
55355599139,3cyclictest1302-21snmpd21:46:347
55355599139,3cyclictest1302-21snmpd21:09:277
55355599139,3cyclictest1302-21snmpd21:09:277
55355599138,4cyclictest750592-21latency_hist20:47:447
55355599138,4cyclictest1302-21snmpd23:15:197
55355599137,6cyclictest6530-21gmain23:19:027
553555991312,0cyclictest0-21swapper/700:20:197
55355599130,12cyclictest0-21swapper/719:38:097
553547991311,2cyclictest800831-21kworker/u16:2+events_unbound21:32:336
553547991311,2cyclictest615072-21kworker/u16:1+events_unbound19:43:446
553547991311,2cyclictest1134939-21kworker/u16:1+events_unbound23:29:576
553547991311,2cyclictest1122497-21kworker/u16:0+flush-8:023:38:196
553546991311,2cyclictest1244039-21kworker/u16:1+events_unbound00:31:035
553546991311,2cyclictest1195928-21kworker/u16:2+flush-8:000:18:105
553546991311,2cyclictest1182823-21kworker/u16:1+events_unbound23:51:385
553546991311,2cyclictest1182823-21kworker/u16:1+events_unbound23:51:385
553546991311,2cyclictest1004811-21kworker/u16:3+events_unbound00:03:145
55354299139,3cyclictest693057-21kworker/u16:1+flush-8:020:18:114
553542991312,1cyclictest800831-21kworker/u16:2+events_unbound21:53:554
553542991312,1cyclictest0-21swapper/422:50:074
553542991312,1cyclictest0-21swapper/422:46:394
553542991312,1cyclictest0-21swapper/422:10:144
553542991312,1cyclictest0-21swapper/400:21:434
55354299130,13cyclictest0-21swapper/400:13:124
55355599129,2cyclictest1302-21snmpd23:34:447
55355599129,2cyclictest1302-21snmpd22:10:237
55355599129,2cyclictest1302-21snmpd22:00:057
55355599129,2cyclictest1302-21snmpd20:39:397
55355599129,2cyclictest1302-21snmpd20:00:137
55355599129,2cyclictest1302-21snmpd19:25:337
55355599129,2cyclictest1302-21snmpd19:08:007
55355599129,2cyclictest1302-21snmpd00:00:297
55355599128,3cyclictest1302-21snmpd22:33:217
55355599128,3cyclictest1302-21snmpd22:22:207
55355599128,3cyclictest1302-21snmpd21:00:187
55355599128,3cyclictest1302-21snmpd19:31:257
55355599127,4cyclictest1302-21snmpd21:13:527
55355599120,10cyclictest1302-21snmpd21:18:347
55355599120,10cyclictest1302-21snmpd21:04:097
55355599120,10cyclictest1302-21snmpd20:31:507
55354799129,2cyclictest800831-21kworker/u16:2+events_unbound21:12:516
553547991211,1cyclictest0-21swapper/621:26:076
553547991211,1cyclictest0-21swapper/600:30:546
553547991210,2cyclictest991717-21kworker/u16:1+events_unbound22:33:426
55354799120,12cyclictest0-21swapper/622:03:116
55354299128,3cyclictest1125806-21cat23:27:594
553542991211,1cyclictest0-21swapper/423:38:224
553542991211,1cyclictest0-21swapper/423:08:534
553542991211,1cyclictest0-21swapper/423:08:534
553542991211,1cyclictest0-21swapper/420:12:184
55355599119,1cyclictest6523-21wpa_supplicant20:48:067
55355599118,2cyclictest1302-21snmpd23:41:177
55355599118,2cyclictest1302-21snmpd23:05:407
55355599118,2cyclictest1302-21snmpd21:39:227
55355599117,3cyclictest6054-21evolution-alarm20:33:137
55355599117,3cyclictest1302-21snmpd22:44:457
55355599117,3cyclictest1302-21snmpd22:03:207
55355599117,3cyclictest1302-21snmpd20:53:367
55355599117,3cyclictest1302-21snmpd19:56:077
55355599110,2cyclictest789311-21diskmemload00:03:117
55355599110,10cyclictest934-21dbus-daemon22:15:197
55355599110,10cyclictest1257066-21ssh00:22:587
55354799115,5cyclictest0-21swapper/600:23:046
55354799114,6cyclictest0-21swapper/621:38:056
553547991110,1cyclictest86-21ksoftirqd/622:24:236
55354299119,2cyclictest644407-21kworker/u16:4+events_unbound20:42:594
553542991110,1cyclictest0-21swapper/420:54:424
553542991110,1cyclictest0-21swapper/420:27:354
553542991110,1cyclictest0-21swapper/419:50:134
553542991110,1cyclictest0-21swapper/419:35:434
55354299110,11cyclictest0-21swapper/420:36:154
55354299110,11cyclictest0-21swapper/419:38:434
55354299110,0cyclictest0-21swapper/420:42:344
55355599106,3cyclictest1302-21snmpd22:53:067
55355599106,3cyclictest1302-21snmpd20:20:177
55355599104,5cyclictest6233-21gvfs-afc-volume20:02:587
55355599100,3cyclictest1087035-21sh23:09:317
55355599100,3cyclictest1087035-21sh23:09:317
55354299109,1cyclictest0-21swapper/420:01:444
55354299109,1cyclictest0-21swapper/419:20:064
55354299109,1cyclictest0-21swapper/419:15:044
55354299109,1cyclictest0-21swapper/400:36:424
55354299108,2cyclictest750580-21kworker/u16:0+flush-8:021:28:064
5535559995,3cyclictest1302-21snmpd22:31:157
5535429998,1cyclictest0-21swapper/423:35:224
5535429998,1cyclictest0-21swapper/422:17:004
5535429998,1cyclictest0-21swapper/420:29:004
5535429996,2cyclictest0-21swapper/419:28:014
5535429990,6cyclictest626234-21awk19:42:594
5535429986,1cyclictest0-21swapper/420:12:574
5535429984,3cyclictest587545-21irqcore19:23:024
5535429983,4cyclictest788512-21sendmail_mailqu21:03:124
5535429983,4cyclictest645504-21sed19:53:004
5535429980,3cyclictest0-21swapper/420:02:594
5535429976,1cyclictest0-21swapper/422:17:574
5535429974,2cyclictest921540-21cpu22:02:564
5535429973,3cyclictest556436-21cut19:08:034
5535429972,4cyclictest877174-21cut21:43:034
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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