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2026-01-12 - 14:16
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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 rackfslot7.osadl.org (updated Mon Jan 12, 2026 00:46:11)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
283946998325,39cyclictest1087-21snmpd22:34:550
283946998324,39cyclictest291633-21cat19:20:240
283946997921,19cyclictest1087-21snmpd22:35:180
283946997736,39cyclictest1086-21runrttasks23:04:370
283946997536,38cyclictest408924-21cut22:50:130
283946997517,39cyclictest385824-21munin-run22:10:010
283946997315,39cyclictest288363-21ntpq19:15:310
283946997234,38cyclictest0-21swapper/021:58:130
283946997234,38cyclictest0-21swapper/020:15:480
283946997233,18cyclictest171ktimers/022:15:170
283946997230,39cyclictest420102-21/usr/sbin/munin23:10:190
283948997171,0cyclictest0-21swapper/220:00:212
283946996910,39cyclictest386874-21/usr/sbin/munin22:10:140
283946996728,20cyclictest316555-21lpstat20:05:180
28394699650,63cyclictest0-21swapper/021:25:100
28394699613,39cyclictest418606-21ntpq23:05:200
28394699612,39cyclictest0-21swapper/020:31:470
283951995819,38cyclictest0-21swapper/522:10:165
283946995839,18cyclictest171ktimers/021:32:230
283946995839,18cyclictest171ktimers/021:32:220
283946995818,38cyclictest428578-21aten2.4-expect23:25:130
283946995817,39cyclictest406783-21interrupts22:45:180
283946995719,19cyclictest422316-21kworker/0:1+ice23:50:120
283946995718,19cyclictest283572-21kworker/0:2+ice19:35:390
283946995637,19cyclictest350373-21irqstats21:05:170
283946995636,19cyclictest0-21swapper/020:35:250
283946995617,38cyclictest357353-21apt-get21:20:000
283946995616,39cyclictest171ktimers/021:51:490
283946995517,19cyclictest303687-21taskset19:44:100
283946995515,38cyclictest455797-21sed00:10:230
283946995435,18cyclictest0-21swapper/020:13:410
283946995416,19cyclictest283572-21kworker/0:2+ice20:57:250
283946995414,39cyclictest0-21swapper/000:26:220
283948995353,0cyclictest0-21swapper/221:05:162
283946995314,39cyclictest0-21swapper/022:21:110
283946995314,39cyclictest0-21swapper/020:04:510
283946995314,19cyclictest434138-21/usr/sbin/munin23:35:230
283946995313,39cyclictest0-21swapper/023:19:430
28395199529,25cyclictest0-21swapper/519:55:165
283951995214,19cyclictest0-21swapper/520:00:175
283947995214,19cyclictest0-21swapper/121:45:151
283946995232,19cyclictest0-21swapper/023:57:530
283946995232,19cyclictest0-21swapper/022:41:010
283946995232,19cyclictest0-21swapper/022:25:210
283946995213,39cyclictest0-21swapper/021:35:510
283946995212,39cyclictest0-21swapper/021:24:290
283951995113,19cyclictest0-21swapper/520:50:165
283949995113,38cyclictest0-21swapper/300:05:163
283946995132,19cyclictest0-21swapper/020:45:170
283946995131,19cyclictest0-21swapper/020:53:000
283946995131,19cyclictest0-21swapper/019:12:370
283946995113,19cyclictest444664-21kworker/0:0+ice00:20:050
283946995113,19cyclictest426505-21if_eno123:20:140
283946995113,19cyclictest283572-21kworker/0:2+ice22:55:480
283946995112,39cyclictest0-21swapper/000:19:280
283946995112,39cyclictest0-21swapper/000:07:410
283946995111,39cyclictest0-21swapper/019:48:410
283953995012,19cyclictest0-21swapper/722:35:187
283953995010,38cyclictest0-21swapper/719:45:157
283949995012,38cyclictest0-21swapper/323:30:153
283946995032,18cyclictest0-21swapper/021:43:130
283946995032,18cyclictest0-21swapper/021:43:120
283946995032,18cyclictest0-21swapper/000:30:450
283946995031,19cyclictest450254-21sshd00:00:440
283946995030,19cyclictest0-21swapper/019:51:350
283946995012,19cyclictest0-21swapper/019:30:440
283946995010,39cyclictest0-21swapper/020:25:170
28395199499,39cyclictest1086-21runrttasks21:45:165
283946994930,19cyclictest0-21swapper/019:58:210
283946994910,39cyclictest0-21swapper/021:03:110
283946994910,19cyclictest283572-21kworker/0:2+ice20:44:360
283951994810,38cyclictest0-21swapper/521:10:155
283947994810,19cyclictest0-21swapper/123:30:161
28394699488,39cyclictest0-21swapper/020:24:550
283946994810,19cyclictest383023-21/usr/sbin/munin22:05:000
28395099478,39cyclictest0-21swapper/422:46:184
283950994728,19cyclictest0-21swapper/422:50:164
283946994729,18cyclictest0-21swapper/023:40:360
283946994729,18cyclictest0-21swapper/021:48:270
28395099468,19cyclictest304203-21kworker/u32:5+flush-8:019:46:054
28395099466,39cyclictest0-21swapper/421:22:124
28394799457,19cyclictest0-21swapper/100:10:141
28394699457,19cyclictest171ktimers/023:34:340
283946994527,18cyclictest352192-21/usr/sbin/munin21:10:130
283946994525,19cyclictest0-21swapper/023:45:170
28395399445,39cyclictest0-21swapper/721:30:167
28395399445,39cyclictest0-21swapper/721:30:157
283953994444,0cyclictest0-21swapper/720:35:187
283951994426,0cyclictest0-21swapper/522:50:155
28395099446,19cyclictest0-21swapper/421:50:144
28394699435,19cyclictest283572-21kworker/0:2+ice19:27:490
28394999425,18cyclictest0-21swapper/322:55:133
28394799424,19cyclictest0-21swapper/121:50:141
28394699422,39cyclictest0-21swapper/000:36:180
283947994021,0cyclictest0-21swapper/119:45:151
28394799391,19cyclictest0-21swapper/120:25:161
28394799391,19cyclictest0-21swapper/119:35:171
28394799390,20cyclictest0-21swapper/119:15:271
283953993818,19cyclictest101550irq/39-eno2-TxRx-023:10:157
28395399380,19cyclictest0-21swapper/722:30:237
283951993819,19cyclictest0-21swapper/523:50:165
28394999370,18cyclictest0-21swapper/322:40:163
28394799370,37cyclictest0-21swapper/100:15:161
283950993617,0cyclictest0-21swapper/421:10:104
28394999360,17cyclictest0-21swapper/322:35:173
28394799360,36cyclictest0-21swapper/122:20:151
28395399350,15cyclictest0-21swapper/722:25:177
28395399350,15cyclictest0-21swapper/700:15:157
28395099350,15cyclictest0-21swapper/421:00:144
28394799350,16cyclictest0-21swapper/121:25:161
28395399340,15cyclictest0-21swapper/723:40:167
28395399340,15cyclictest0-21swapper/700:35:157
283951993415,19cyclictest0-21swapper/520:25:175
28395199340,15cyclictest0-21swapper/519:49:005
28395199340,15cyclictest0-21swapper/500:20:155
283950993416,18cyclictest61-21ksoftirqd/421:30:164
283950993416,18cyclictest61-21ksoftirqd/421:30:164
283950993415,19cyclictest448210-21kworker/u32:4+events_unbound00:10:234
283950993415,19cyclictest403995-21cut22:40:174
283949993415,19cyclictest0-21swapper/319:25:163
28394999340,15cyclictest0-21swapper/321:40:173
28394999340,15cyclictest0-21swapper/321:40:163
283947993415,19cyclictest0-21swapper/123:40:161
28394799340,34cyclictest0-21swapper/119:30:161
283953993314,19cyclictest0-21swapper/721:55:157
283953993314,19cyclictest0-21swapper/720:55:177
283953993314,19cyclictest0-21swapper/720:20:157
283953993314,19cyclictest0-21swapper/719:30:157
283953993314,19cyclictest0-21swapper/700:05:167
283953993313,19cyclictest0-21swapper/720:45:157
283951993314,19cyclictest0-21swapper/523:00:145
283951993314,19cyclictest0-21swapper/522:45:185
283951993314,19cyclictest0-21swapper/522:30:175
283951993314,19cyclictest0-21swapper/521:20:165
283951993314,19cyclictest0-21swapper/520:20:145
283951993314,19cyclictest0-21swapper/520:15:155
283951993314,19cyclictest0-21swapper/519:20:175
283951993314,19cyclictest0-21swapper/519:10:165
283950993314,19cyclictest0-21swapper/423:30:164
283950993314,19cyclictest0-21swapper/423:15:154
283950993314,19cyclictest0-21swapper/422:55:134
283950993314,19cyclictest0-21swapper/422:05:154
283949993314,19cyclictest0-21swapper/323:20:153
283949993314,19cyclictest0-21swapper/320:10:183
283949993314,19cyclictest0-21swapper/319:45:153
283949993314,19cyclictest0-21swapper/319:30:153
283949993313,19cyclictest0-21swapper/319:35:173
283948993333,0cyclictest0-21swapper/221:10:132
283947993314,19cyclictest0-21swapper/123:20:161
283947993314,19cyclictest0-21swapper/121:55:141
283947993314,19cyclictest0-21swapper/120:45:151
283947993314,19cyclictest0-21swapper/120:40:181
28394799330,14cyclictest0-21swapper/123:55:161
283953993214,18cyclictest0-21swapper/721:50:147
283953993213,19cyclictest0-21swapper/722:50:167
283953993213,19cyclictest0-21swapper/721:40:167
283953993213,19cyclictest0-21swapper/721:40:157
283953993213,19cyclictest0-21swapper/720:30:167
283951993213,19cyclictest0-21swapper/523:40:165
283950993213,19cyclictest0-21swapper/419:22:034
283949993213,19cyclictest0-21swapper/323:35:163
283949993213,19cyclictest0-21swapper/323:10:143
283949993213,19cyclictest0-21swapper/321:10:153
283947993213,19cyclictest0-21swapper/120:10:171
283947993213,19cyclictest0-21swapper/119:55:161
283947993213,0cyclictest0-21swapper/120:05:171
283953993113,18cyclictest0-21swapper/723:35:167
283953993112,19cyclictest0-21swapper/723:45:167
283953993112,19cyclictest0-21swapper/723:05:167
283950993112,19cyclictest0-21swapper/421:15:174
283949993113,18cyclictest0-21swapper/320:05:163
283949993112,19cyclictest0-21swapper/321:55:153
283949993112,19cyclictest0-21swapper/300:35:163
283947993112,19cyclictest0-21swapper/100:05:161
283953993011,19cyclictest0-21swapper/721:05:167
283953993011,19cyclictest0-21swapper/720:10:187
283953993010,19cyclictest0-21swapper/722:40:167
283951993011,19cyclictest0-21swapper/523:55:155
283951993011,19cyclictest0-21swapper/521:50:205
283950993011,19cyclictest0-21swapper/423:55:164
283950993011,19cyclictest0-21swapper/421:25:164
283950993011,19cyclictest0-21swapper/420:10:184
283950993011,19cyclictest0-21swapper/400:30:174
283950993011,0cyclictest0-21swapper/422:10:154
283949993011,19cyclictest0-21swapper/322:20:163
283949993011,19cyclictest0-21swapper/320:30:153
283953992910,19cyclictest0-21swapper/719:25:167
283953992910,19cyclictest0-21swapper/719:15:287
283950992910,19cyclictest0-21swapper/420:04:054
283950992910,19cyclictest0-21swapper/400:22:254
283950992910,0cyclictest0-21swapper/423:40:224
283950992910,0cyclictest0-21swapper/422:16:154
283949992910,19cyclictest0-21swapper/320:50:163
283947992910,19cyclictest0-21swapper/123:25:161
28395399289,19cyclictest0-21swapper/723:00:157
28395399289,19cyclictest0-21swapper/720:50:157
28395399289,19cyclictest0-21swapper/700:25:167
283953992810,0cyclictest0-21swapper/723:55:167
28395099289,19cyclictest0-21swapper/421:35:164
283950992828,0cyclictest289671-21kworker/4:2+events20:59:394
28394799289,19cyclictest0-21swapper/122:55:141
28394799289,19cyclictest0-21swapper/119:10:161
28394799289,19cyclictest0-21swapper/100:20:151
28394799288,19cyclictest0-21swapper/120:20:221
283947992810,18cyclictest0-21swapper/119:40:151
28395199278,19cyclictest0-21swapper/523:25:175
28395099278,19cyclictest0-21swapper/423:04:194
28395099278,19cyclictest0-21swapper/420:16:064
28395099278,19cyclictest0-21swapper/419:52:044
28394799279,18cyclictest0-21swapper/119:20:171
28395199267,19cyclictest0-21swapper/523:15:165
28395099267,19cyclictest421474-21ntpq23:10:204
28395099267,19cyclictest0-21swapper/423:28:204
28395099267,19cyclictest0-21swapper/423:20:224
28395099267,19cyclictest0-21swapper/420:52:084
28395099267,19cyclictest0-21swapper/420:34:084
28395099267,19cyclictest0-21swapper/419:58:054
28395099267,19cyclictest0-21swapper/419:40:034
28395099267,19cyclictest0-21swapper/419:28:034
28394999267,19cyclictest0-21swapper/323:15:163
28394799267,19cyclictest0-21swapper/123:00:151
28394799267,19cyclictest0-21swapper/122:45:181
28395099256,19cyclictest0-21swapper/423:52:234
28395099256,19cyclictest0-21swapper/422:28:164
28395099256,19cyclictest0-21swapper/421:58:134
28395099256,19cyclictest0-21swapper/420:46:094
28395099256,19cyclictest0-21swapper/420:28:074
28395099256,19cyclictest0-21swapper/420:22:074
28395099256,19cyclictest0-21swapper/419:34:044
28395099256,19cyclictest0-21swapper/419:16:014
28395099256,19cyclictest0-21swapper/400:04:224
28395099256,0cyclictest0-21swapper/422:22:154
28394799256,19cyclictest0-21swapper/123:45:221
28394799256,19cyclictest0-21swapper/121:15:171
28395099245,19cyclictest0-21swapper/422:34:164
28395099245,19cyclictest0-21swapper/420:40:184
28395099245,19cyclictest0-21swapper/400:16:244
28395099245,0cyclictest0-21swapper/423:46:224
28394799245,19cyclictest0-21swapper/122:10:161
283953992321,2cyclictest1087-21snmpd23:31:277
28395099234,19cyclictest362-21jbd2/sda2-800:28:254
28395099234,19cyclictest0-21swapper/422:04:154
28395099234,19cyclictest0-21swapper/421:46:124
28394799234,19cyclictest0-21swapper/121:30:161
28394799234,19cyclictest0-21swapper/121:30:161
28394899220,19cyclictest0-21swapper/223:11:062
28394799223,19cyclictest0-21swapper/121:35:171
28395399213,18cyclictest0-21swapper/723:20:167
28395399212,19cyclictest0-21swapper/721:15:177
283952992120,1cyclictest389804-21ethtool22:15:176
283952992120,1cyclictest324720-21ethtool20:20:156
283952992120,1cyclictest310670-21mii-tool19:55:156
28395199212,19cyclictest0-21swapper/520:09:055
28395199212,19cyclictest0-21swapper/500:15:165
283951992120,1cyclictest1087-21snmpd22:05:025
28395199210,20cyclictest0-21swapper/522:40:095
28394899211,19cyclictest0-21swapper/220:15:162
283953992020,0cyclictest1087-21snmpd23:50:247
283953992019,1cyclictest299179-21mii-tool19:35:177
283953992019,1cyclictest1087-21snmpd20:15:327
283953992019,1cyclictest1087-21snmpd20:02:287
283953992019,1cyclictest1087-21snmpd00:22:417
28395399200,20cyclictest0-21swapper/721:24:147
28395399200,20cyclictest0-21swapper/719:10:167
28395399200,20cyclictest0-21swapper/700:00:237
283952992020,0cyclictest412288-21mii-tool22:55:146
283952992020,0cyclictest384218-21ethtool22:05:166
283952992020,0cyclictest333399-21mii-tool20:35:186
283952992020,0cyclictest1087-21snmpd21:52:536
283952992020,0cyclictest1087-21snmpd20:59:146
283952992019,1cyclictest341821-21ethtool20:50:166
283952992019,1cyclictest1087-21snmpd23:58:346
283952992019,1cyclictest1087-21snmpd22:34:376
283952992019,1cyclictest1087-21snmpd19:27:436
283952992019,0cyclictest434992-21ethtool23:35:166
283951992020,0cyclictest339023-21mii-tool20:45:145
283951992019,1cyclictest1087-21snmpd22:00:245
28395199201,19cyclictest0-21swapper/522:25:245
28395199200,20cyclictest0-21swapper/521:37:315
28395199200,1cyclictest0-21swapper/521:25:295
28395199200,1cyclictest0-21swapper/520:42:105
28395199200,1cyclictest0-21swapper/500:37:595
283950992020,0cyclictest368911-21kworker/4:1+events23:35:144
283950992020,0cyclictest368911-21kworker/4:1+events23:05:264
283950992020,0cyclictest368911-21kworker/4:1+events22:35:074
283950992020,0cyclictest368911-21kworker/4:1+events00:36:024
283950992020,0cyclictest368911-21kworker/4:1+events00:05:234
283950992020,0cyclictest289671-21kworker/4:2+events21:40:214
283950992020,0cyclictest289671-21kworker/4:2+events21:40:204
283950992020,0cyclictest289671-21kworker/4:2+events21:05:254
283950992020,0cyclictest289671-21kworker/4:2+events20:35:024
283950992020,0cyclictest289671-21kworker/4:2+events20:09:114
283950992020,0cyclictest289671-21kworker/4:2+events19:35:594
283950992020,0cyclictest272055-21kworker/4:1+events19:10:274
283949992020,0cyclictest324724-21mii-tool20:20:153
283949992019,1cyclictest440619-21ethtool23:45:163
283949992019,1cyclictest1087-21snmpd00:27:223
28394999201,19cyclictest0-21swapper/320:25:243
28394999201,19cyclictest0-21swapper/319:56:153
28394999200,20cyclictest0-21swapper/321:34:563
28394999200,20cyclictest0-21swapper/321:34:553
28394999200,20cyclictest0-21swapper/320:57:223
28394999200,20cyclictest0-21swapper/320:00:383
283948992020,0cyclictest440623-21mii-tool23:45:152
283948992019,1cyclictest395436-21mii-tool22:25:162
283948992019,1cyclictest341840-21ethtool20:50:162
283948992019,1cyclictest1087-21snmpd22:19:152
283948992019,1cyclictest1087-21snmpd21:45:272
283948992019,1cyclictest1087-21snmpd00:04:492
28394899201,19cyclictest0-21swapper/222:55:142
28394899201,19cyclictest0-21swapper/222:05:152
28394899201,19cyclictest0-21swapper/222:00:172
28394899201,19cyclictest0-21swapper/221:40:162
28394899201,19cyclictest0-21swapper/221:40:162
28394899201,19cyclictest0-21swapper/221:25:162
28394899201,19cyclictest0-21swapper/220:59:142
28394899201,19cyclictest0-21swapper/220:35:182
28394899201,19cyclictest0-21swapper/219:55:152
28394899201,19cyclictest0-21swapper/200:05:152
28394899200,20cyclictest0-21swapper/223:58:332
28394899200,20cyclictest0-21swapper/221:52:542
28394899200,20cyclictest0-21swapper/220:20:142
28394899200,19cyclictest0-21swapper/223:35:162
28394899200,19cyclictest0-21swapper/222:20:162
283947992019,1cyclictest330606-21cat20:30:161
28394799200,20cyclictest0-21swapper/122:53:051
28394799200,20cyclictest0-21swapper/122:15:171
283953991919,0cyclictest423779-21ethtool23:15:157
283953991919,0cyclictest1087-21snmpd20:28:117
283953991918,1cyclictest1087-21snmpd21:36:117
28395399190,19cyclictest0-21swapper/722:21:037
28395399190,19cyclictest0-21swapper/700:10:217
283952991919,0cyclictest451889-21ethtool00:05:156
283952991919,0cyclictest418160-21mii-tool23:05:176
283952991919,0cyclictest395455-21mii-tool22:25:166
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283952991919,0cyclictest370174-21mii-tool21:40:156
283952991919,0cyclictest364549-21mii-tool21:30:166
283952991919,0cyclictest364549-21mii-tool21:30:166
283952991919,0cyclictest361761-21mii-tool21:25:156
283952991919,0cyclictest358958-21ethtool21:20:176
283952991919,0cyclictest350270-21mii-tool21:05:156
283952991919,0cyclictest321915-21ethtool20:15:166
283952991919,0cyclictest313494-21mii-tool20:00:176
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283952991918,1cyclictest392645-21cat22:20:166
28395299190,19cyclictest0-21swapper/619:39:336
28395299190,19cyclictest0-21swapper/600:20:056
283951991919,0cyclictest691ktimers/521:01:495
283951991919,0cyclictest454955-21mii-tool00:10:155
283951991919,0cyclictest356570-21sensors21:15:245
283951991919,0cyclictest1087-21snmpd23:46:185
283951991918,1cyclictest1087-21snmpd20:36:055
283951991918,1cyclictest1087-21snmpd20:33:305
28395199190,19cyclictest0-21swapper/523:20:165
28395199190,19cyclictest0-21swapper/522:35:045
28395199190,19cyclictest0-21swapper/520:14:325
28395199190,19cyclictest0-21swapper/519:51:145
28395199190,19cyclictest0-21swapper/500:30:235
28395199190,19cyclictest0-21swapper/500:00:295
283949991919,0cyclictest418179-21mii-tool23:05:173
283949991919,0cyclictest409489-21mii-tool22:50:163
283949991919,0cyclictest333418-21mii-tool20:35:183
283949991919,0cyclictest1087-21snmpd23:56:553
283949991919,0cyclictest1087-21snmpd23:51:123
283949991919,0cyclictest1087-21snmpd21:26:013
283949991919,0cyclictest1087-21snmpd21:16:553
283949991918,1cyclictest457733-21ethtool00:15:143
283949991918,1cyclictest437839-21mii-tool23:40:153
283949991918,1cyclictest415089-21ethtool23:00:153
283949991918,1cyclictest398255-21ethtool22:30:173
283949991918,1cyclictest375767-21cat21:50:133
283949991918,1cyclictest350247-21ethtool21:05:163
28394999190,19cyclictest339043-21/usr/sbin/munin20:45:163
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