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2026-07-20 - 00:02
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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 Sun Jul 19, 2026 12:43:29)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2989822980,1sleep7298983-21grep09:24:597
2989822980,1sleep7298983-21grep09:24:597
1905425442,8sleep40-21swapper/407:08:524
1885125420,29sleep70-21swapper/707:05:587
1908524333,7sleep50-21swapper/507:09:175
19387993533,2cyclictest33916-21kworker/u16:1+flush-8:007:20:076
19387993533,2cyclictest33916-21kworker/u16:1+flush-8:007:20:076
19383993531,3cyclictest33916-21kworker/u16:1+flush-8:007:18:515
1891623019,8sleep60-21swapper/607:06:536
19383992927,2cyclictest110955-21kworker/u16:4+events_unbound07:57:575
19383992826,2cyclictest9497-21kworker/u16:2+events_unbound08:18:115
19383992826,2cyclictest247011-21kworker/u16:1+events_unbound09:18:405
19383992826,2cyclictest169217-21kworker/u16:0+events_unbound08:25:325
19383992725,2cyclictest33916-21kworker/u16:1+events_unbound08:53:525
1939099260,24cyclictest648-21systemd-journal08:54:327
19383992624,2cyclictest81809-21kworker/u16:0+flush-8:008:00:335
19383992624,2cyclictest110955-21kworker/u16:4+flush-8:008:10:335
19380992624,2cyclictest503035-21kworker/u16:1+flush-8:011:25:034
19380992624,2cyclictest503035-21kworker/u16:1+flush-8:011:25:034
1939099250,23cyclictest648-21systemd-journal08:14:377
19383992523,2cyclictest9497-21kworker/u16:2+events_unbound08:35:055
19383992523,2cyclictest9497-21kworker/u16:2+events_unbound07:40:375
19383992523,2cyclictest42472-21kworker/u16:6+events_unbound07:27:245
19383992523,2cyclictest368111-21kworker/u16:0+events_unbound10:25:165
19383992523,2cyclictest355460-21kworker/u16:2+events_unbound10:42:595
19383992523,2cyclictest33916-21kworker/u16:1+events_unbound07:21:205
19383992523,2cyclictest33916-21kworker/u16:1+events_unbound07:21:205
19383992523,2cyclictest182996-21kworker/u16:3+events_unbound08:31:405
19383992523,2cyclictest169217-21kworker/u16:0+flush-8:009:40:305
19390992420,3cyclictest1302-21snmpd09:20:087
19387992421,2cyclictest169217-21kworker/u16:0+flush-8:009:24:386
19387992421,2cyclictest169217-21kworker/u16:0+flush-8:009:24:386
19387992420,3cyclictest182996-21kworker/u16:3+flush-8:008:30:046
19383992422,2cyclictest368111-21kworker/u16:0+events_unbound10:50:255
19383992422,2cyclictest368111-21kworker/u16:0+events_unbound09:59:545
19383992422,2cyclictest355460-21kworker/u16:2+events_unbound09:58:265
19383992422,2cyclictest182996-21kworker/u16:3+events_unbound08:57:515
19383992422,2cyclictest110955-21kworker/u16:4+flush-8:008:06:075
19387992321,2cyclictest9497-21kworker/u16:2+flush-8:008:05:096
19387992321,2cyclictest33916-21kworker/u16:1+flush-8:007:18:406
19383992321,2cyclictest9497-21kworker/u16:2+events_unbound07:33:475
19383992321,2cyclictest712507-21kworker/u16:3+events_unbound12:19:455
19383992321,2cyclictest355460-21kworker/u16:2+flush-8:010:17:255
19383992321,2cyclictest33916-21kworker/u16:1+flush-8:008:45:035
19383992321,2cyclictest247011-21kworker/u16:1+flush-8:009:20:245
19383992321,2cyclictest247011-21kworker/u16:1+events_unbound10:22:225
19383992321,2cyclictest169217-21kworker/u16:0+flush-8:009:45:155
19383992220,2cyclictest9497-21kworker/u16:2+flush-8:007:49:005
19383992220,2cyclictest648297-21kworker/u16:0+events_unbound12:25:455
19383992220,2cyclictest503035-21kworker/u16:1+events_unbound11:55:355
19383992220,2cyclictest251853-21kworker/u16:2+events_unbound09:06:355
7736302210,1chrt773631-21sh12:39:267
3933302210,1chrt393327-21df10:04:507
19383992119,2cyclictest9497-21kworker/u16:2+events_unbound08:22:445
19383992119,2cyclictest574488-21kworker/u16:3+flush-8:011:50:185
19383992119,2cyclictest247011-21kworker/u16:1+flush-8:009:25:495
19383992119,2cyclictest247011-21kworker/u16:1+flush-8:009:25:495
19383992119,2cyclictest2087884-21kworker/u16:3+events_unbound07:35:235
19383992018,2cyclictest9497-21kworker/u16:2+flush-8:007:12:085
19383992018,2cyclictest648297-21kworker/u16:0+flush-8:012:09:535
19383992018,2cyclictest355460-21kworker/u16:2+flush-8:010:35:145
19383992018,2cyclictest169217-21kworker/u16:0+flush-8:009:02:595
19383992018,2cyclictest169217-21kworker/u16:0+events_unbound08:42:365
19380992017,2cyclictest182996-21kworker/u16:3+flush-8:010:44:474
19380992017,2cyclictest182996-21kworker/u16:3+flush-8:009:50:314
19387991917,2cyclictest355460-21kworker/u16:2+events_unbound10:34:536
19387991915,3cyclictest355386-21cat09:49:386
19387991915,3cyclictest120355-21cat07:59:336
19383991917,2cyclictest368111-21kworker/u16:0+events_unbound10:55:225
19383991917,2cyclictest182996-21kworker/u16:3+flush-8:009:36:555
19390991814,3cyclictest1302-21snmpd09:39:427
19383991816,2cyclictest355460-21kworker/u16:2+events_unbound11:10:405
19383991816,2cyclictest247011-21kworker/u16:1+flush-8:009:29:485
19383991816,2cyclictest247011-21kworker/u16:1+flush-8:009:29:485
19383991816,2cyclictest110367-21kworker/u16:3+events_unbound07:54:265
19383991715,2cyclictest247011-21kworker/u16:1+events_unbound09:10:395
19380991715,2cyclictest182996-21kworker/u16:3+flush-8:009:40:084
19380991714,2cyclictest182996-21kworker/u16:3+flush-8:009:35:354
7374512160,0sleep60-21swapper/612:24:506
19383991612,3cyclictest589312-21awk11:24:375
19380991613,3cyclictest355460-21kworker/u16:2+flush-8:010:05:324
19380991612,3cyclictest33916-21kworker/u16:1+flush-8:007:45:134
19390991511,3cyclictest1302-21snmpd09:05:177
19387991514,1cyclictest0-21swapper/610:47:556
19387991511,3cyclictest724658-21cat12:19:386
19387991511,3cyclictest182996-21kworker/u16:3+flush-8:010:40:076
1938799150,15cyclictest0-21swapper/609:38:146
19383991513,2cyclictest574488-21kworker/u16:3+flush-8:011:35:285
19380991511,3cyclictest355460-21kworker/u16:2+flush-8:011:04:374
1938099150,1cyclictest0-21swapper/410:20:594
1939099149,4cyclictest597909-21cut11:25:037
1939099149,4cyclictest597909-21cut11:25:037
1939099143,10cyclictest6010-21gnome-software07:18:387
19390991413,0cyclictest0-21swapper/711:53:077
19390991413,0cyclictest0-21swapper/710:29:527
19390991412,1cyclictest0-21swapper/709:45:077
19387991410,3cyclictest343037-21cat09:44:386
1938799140,1cyclictest86-21ksoftirqd/609:09:416
1938799140,1cyclictest0-21swapper/612:23:376
1938799140,1cyclictest0-21swapper/611:00:416
1938399148,4cyclictest247011-21kworker/u16:1+flush-8:010:08:075
19383991413,1cyclictest0-21swapper/512:06:175
19383991413,1cyclictest0-21swapper/512:03:085
19383991413,1cyclictest0-21swapper/511:43:165
19383991412,2cyclictest648297-21kworker/u16:0+events_unbound12:31:375
19383991412,2cyclictest648297-21kworker/u16:0+events_unbound12:18:295
19383991412,2cyclictest648297-21kworker/u16:0+events_unbound11:45:165
19383991412,2cyclictest355460-21kworker/u16:2+flush-8:011:25:345
19383991412,2cyclictest355460-21kworker/u16:2+flush-8:011:25:345
19383991411,2cyclictest503035-21kworker/u16:1+flush-8:011:29:385
19383991411,2cyclictest503035-21kworker/u16:1+flush-8:011:29:385
1938399140,14cyclictest0-21swapper/511:16:465
1938399140,14cyclictest0-21swapper/510:48:335
19380991413,1cyclictest0-21swapper/412:05:124
19380991413,1cyclictest0-21swapper/411:29:444
19380991413,1cyclictest0-21swapper/411:29:444
19380991413,1cyclictest0-21swapper/410:14:514
19380991413,1cyclictest0-21swapper/408:05:054
1938099140,1cyclictest0-21swapper/412:24:084
1938099140,14cyclictest0-21swapper/411:20:544
1938099140,14cyclictest0-21swapper/411:04:594
1938099140,14cyclictest0-21swapper/410:56:474
1938099140,14cyclictest0-21swapper/410:52:414
1938099140,14cyclictest0-21swapper/410:44:294
4797192130,0sleep7479722-21cut10:39:537
1939099139,3cyclictest615167-21cat11:34:527
1939099139,3cyclictest1302-21snmpd11:31:187
1939099139,3cyclictest1302-21snmpd11:31:187
1939099139,3cyclictest1302-21snmpd10:15:047
1939099139,3cyclictest1302-21snmpd08:38:227
1939099139,3cyclictest1302-21snmpd08:09:017
1939099139,3cyclictest1302-21snmpd07:45:427
1939099138,4cyclictest553646-21cat11:09:527
19390991312,0cyclictest0-21swapper/710:13:197
19390991311,1cyclictest0-21swapper/707:55:047
19390991310,2cyclictest1302-21snmpd09:32:487
19390991310,2cyclictest1302-21snmpd09:32:487
19390991310,2cyclictest0-21swapper/712:14:387
1939099130,11cyclictest62979-21diskstats07:29:537
1939099130,11cyclictest1302-21snmpd07:23:127
1939099130,11cyclictest1302-21snmpd07:23:127
19387991312,1cyclictest0-21swapper/612:05:486
19387991312,1cyclictest0-21swapper/611:50:406
19387991312,1cyclictest0-21swapper/611:23:146
19387991312,1cyclictest0-21swapper/608:59:556
19387991312,1cyclictest0-21swapper/607:39:406
19387991310,2cyclictest355460-21kworker/u16:2+flush-8:011:39:386
1938799130,1cyclictest0-21swapper/608:51:436
1938799130,1cyclictest0-21swapper/607:25:386
1938799130,13cyclictest0-21swapper/612:13:416
1938799130,13cyclictest0-21swapper/611:08:536
1938799130,13cyclictest0-21swapper/610:34:126
1938799130,13cyclictest0-21swapper/610:23:006
1938799130,13cyclictest0-21swapper/609:31:366
1938799130,13cyclictest0-21swapper/609:31:366
1938799130,0cyclictest0-21swapper/611:30:296
1938799130,0cyclictest0-21swapper/611:30:296
19383991312,1cyclictest0-21swapper/511:00:515
19383991312,1cyclictest0-21swapper/510:31:415
1938399130,0cyclictest0-21swapper/509:50:515
19380991312,1cyclictest0-21swapper/411:18:514
19380991312,1cyclictest0-21swapper/410:33:464
19380991312,1cyclictest0-21swapper/409:59:334
19380991312,1cyclictest0-21swapper/409:29:554
19380991312,1cyclictest0-21swapper/409:29:554
19380991312,1cyclictest0-21swapper/409:13:024
1938099130,13cyclictest0-21swapper/411:58:544
1938099130,13cyclictest0-21swapper/409:19:114
1939099129,2cyclictest1302-21snmpd10:47:177
1939099129,2cyclictest1302-21snmpd08:34:107
1939099128,3cyclictest639793-21cat11:44:557
1939099128,3cyclictest6124-21gmain10:34:557
1939099128,3cyclictest1302-21snmpd09:00:207
1939099128,3cyclictest1302-21snmpd08:56:297
1939099128,3cyclictest1302-21snmpd08:46:407
1939099128,3cyclictest1302-21snmpd08:43:377
1939099128,3cyclictest1302-21snmpd07:49:517
1939099128,3cyclictest1302-21snmpd07:36:037
1939099126,5cyclictest6233-21gvfs-afc-volume09:09:447
19390991212,0cyclictest0-21swapper/712:25:557
19390991210,1cyclictest0-21swapper/711:55:117
1939099120,11cyclictest278058-21ntpq09:15:057
1939099120,10cyclictest541340-21cat11:04:537
1938799129,2cyclictest247011-21kworker/u16:1+flush-8:009:54:386
1938799128,3cyclictest247011-21kworker/u16:1+flush-8:009:19:386
19387991211,1cyclictest0-21swapper/611:26:516
19387991211,1cyclictest0-21swapper/611:26:516
19387991211,1cyclictest0-21swapper/610:56:356
19387991211,1cyclictest0-21swapper/609:20:536
1938799120,12cyclictest0-21swapper/609:07:386
1938799120,12cyclictest0-21swapper/608:27:366
1938799120,12cyclictest0-21swapper/607:11:086
19380991211,1cyclictest0-21swapper/409:46:474
19380991211,1cyclictest0-21swapper/409:05:194
1938099120,1cyclictest0-21swapper/408:27:384
1938099120,11cyclictest0-21swapper/407:24:434
1939099119,1cyclictest0-21swapper/712:00:057
1939099119,1cyclictest0-21swapper/709:50:047
1939099118,2cyclictest0-21swapper/710:50:067
1939099117,3cyclictest1302-21snmpd12:22:197
1939099117,3cyclictest1302-21snmpd09:37:577
1939099117,3cyclictest1302-21snmpd08:28:257
1939099117,3cyclictest1302-21snmpd08:22:587
1939099117,3cyclictest1302-21snmpd07:29:187
1939099116,4cyclictest381047-21tune2fs09:59:527
1939099110,3cyclictest689375-21irqstats12:04:547
19387991110,1cyclictest0-21swapper/611:48:376
19387991110,1cyclictest0-21swapper/611:15:306
19387991110,1cyclictest0-21swapper/608:20:206
19387991110,1cyclictest0-21swapper/608:10:246
19387991110,1cyclictest0-21swapper/607:49:366
1938799110,0cyclictest0-21swapper/608:47:376
1938399119,2cyclictest355460-21kworker/u16:2+events_unbound10:10:355
1938099117,3cyclictest650684-21latency_hist11:49:374
1938099116,4cyclictest207887-21latency_hist08:44:374
19380991110,1cyclictest0-21swapper/412:11:314
19380991110,1cyclictest0-21swapper/412:02:034
19380991110,1cyclictest0-21swapper/410:38:204
19380991110,1cyclictest0-21swapper/409:25:494
19380991110,1cyclictest0-21swapper/409:25:494
19380991110,1cyclictest0-21swapper/408:56:014
1938099110,11cyclictest0-21swapper/408:50:204
1939099107,2cyclictest1302-21snmpd12:32:107
1939099107,2cyclictest1302-21snmpd11:16:597
1939099107,2cyclictest1302-21snmpd07:39:427
1939099106,3cyclictest1302-21snmpd11:02:177
1939099106,3cyclictest1302-21snmpd10:26:287
1939099105,4cyclictest578208-21tune2fs11:19:527
1939099105,4cyclictest128093-21grep08:00:007
1939099104,5cyclictest626764-21expr11:39:497
1939099104,4cyclictest430453-21grep10:19:527
1939099103,6cyclictest6466-21gmain12:14:517
1939099101,7cyclictest150015-21grep08:14:487
1939099100,3cyclictest522008-21kthreadcore10:55:007
1938799109,1cyclictest0-21swapper/611:37:446
1938799109,1cyclictest0-21swapper/610:25:326
1938799109,1cyclictest0-21swapper/610:14:206
1938799108,2cyclictest86-21ksoftirqd/610:49:546
1938799108,2cyclictest712507-21kworker/u16:3+flush-8:012:35:246
1938399108,2cyclictest761703-21kworker/u16:2+flush-8:012:35:145
1938099109,1cyclictest0-21swapper/412:17:494
1938099109,1cyclictest0-21swapper/411:52:364
1938099109,1cyclictest0-21swapper/411:43:464
1938099109,1cyclictest0-21swapper/408:00:214
1938099109,1cyclictest0-21swapper/407:34:394
193909994,4cyclictest369842-21grep09:54:567
193909994,4cyclictest27726-21grep07:10:007
193879999,0cyclictest0-21swapper/610:07:436
193879998,1cyclictest0-21swapper/611:11:246
193879998,1cyclictest0-21swapper/609:58:346
193879998,1cyclictest0-21swapper/608:43:316
193879998,1cyclictest0-21swapper/608:35:476
193879997,2cyclictest86-21ksoftirqd/612:03:336
193879996,2cyclictest368111-21kworker/u16:0+flush-8:009:59:386
193879993,5cyclictest0-21swapper/611:59:386
193839998,1cyclictest0-21swapper/511:04:575
193809998,1cyclictest0-21swapper/412:34:044
193809998,1cyclictest0-21swapper/410:10:454
193809998,1cyclictest0-21swapper/408:48:174
193809998,1cyclictest0-21swapper/408:16:074
193809998,1cyclictest0-21swapper/408:11:244
193809998,1cyclictest0-21swapper/407:42:324
193809998,1cyclictest0-21swapper/407:11:104
193809995,3cyclictest42424-21packagekitd07:18:424
193879986,2cyclictest86-21ksoftirqd/612:33:526
193879986,2cyclictest86-21ksoftirqd/610:15:396
193809987,1cyclictest0-21swapper/411:11:084
193809987,1cyclictest0-21swapper/409:19:404
193809987,1cyclictest0-21swapper/408:35:214
193809985,2cyclictest5839-21JS17:17:144
193809983,4cyclictest749156-21awk12:29:364
193809983,4cyclictest71778-21pluginstate07:34:384
193879976,1cyclictest0-21swapper/608:57:526
193879976,1cyclictest0-21swapper/608:14:546
193879973,3cyclictest71859-21cat07:34:386
193879970,6cyclictest81821-21cut07:39:386
193879970,1cyclictest0-21swapper/608:04:126
193809976,1cyclictest0-21swapper/410:25:344
193809976,1cyclictest0-21swapper/410:00:014
193809976,1cyclictest0-21swapper/408:33:184
193809976,1cyclictest0-21swapper/408:20:514
193809975,2cyclictest33916-21kworker/u16:1+flush-8:007:20:284
193809975,2cyclictest33916-21kworker/u16:1+flush-8:007:20:284
193809972,4cyclictest246959-21date09:04:384
193879964,2cyclictest86-21ksoftirqd/607:50:056
193809961,1cyclictest201rcu_preempt12:37:594
193809960,5cyclictest100935-21dump-pmu-power07:54:334
193809960,1cyclictest0-21swapper/411:34:554
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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