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2025-12-04 - 04:46
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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 100 highest latencies:
System rack0slot4.osadl.org (updated Thu Dec 04, 2025 00:46:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
20389662357311,14sleep110-21swapper/1119:08:443
20387932357312,15sleep60-21swapper/619:06:4612
20389252356312,15sleep150-21swapper/1519:08:167
20390272355313,15sleep130-21swapper/1319:09:345
20389432354310,15sleep90-21swapper/919:08:2615
20389392353312,32sleep70-21swapper/719:08:2513
20387282353310,14sleep30-21swapper/319:05:559
20388292345322,15sleep20-21swapper/219:07:148
20388182345331,9sleep140-21swapper/1419:07:106
20389602344322,14sleep50-21swapper/519:08:3811
20388362344322,14sleep80-21swapper/819:07:2014
20390432342321,13sleep100-21swapper/1019:09:482
20387722342319,15sleep40-21swapper/419:06:2810
20390342339316,15sleep10-21swapper/119:09:381
20388702339316,15sleep00-21swapper/019:07:450
20388632338315,15sleep120-21swapper/1219:07:414
2039496999998,1cyclictest2111881-21nodev-device-ev20:30:1813
2039520999189,1cyclictest2116147-21nodev-device-ev20:35:186
2039520999189,1cyclictest2116147-21nodev-device-ev20:35:186
2039520998584,1cyclictest0-21swapper/1421:40:186
2039516998584,1cyclictest0-21swapper/1322:45:175
2039500998584,1cyclictest0-21swapper/822:55:1814
2039510998483,1cyclictest2103338-21nodev-device-ev20:20:213
2039480998483,1cyclictest2107618-21nodev-device-ev20:25:168
2039480998483,1cyclictest2069121-21nodev-device-ev19:40:178
2039500998281,1cyclictest0-21swapper/819:25:1614
2039522998079,1cyclictest0-21swapper/1521:20:207
2039500998079,1cyclictest2197390-21nodev-device-ev22:10:2014
2039482997776,1cyclictest2261496-21nodev-device-ev23:25:179
2039522997271,1cyclictest2193132-21nodev-device-ev22:05:217
2039480996362,1cyclictest0-21swapper/220:10:188
2039486996159,1cyclictest2175981-21daemon-init21:45:1910
2039492996059,1cyclictest0-21swapper/620:35:1812
2039492996059,1cyclictest0-21swapper/620:35:1812
2039502995856,1cyclictest2086215-21nodev-device-ev20:00:1815
2039522995756,1cyclictest0-21swapper/1500:00:197
2039510995655,1cyclictest2308523-21nodev-device-ev00:20:183
2039492995453,1cyclictest2171725-21nodev-device-ev21:40:1812
2039496995251,1cyclictest2154658-21nodev-device-ev21:20:2013
2039476995049,1cyclictest0-21swapper/120:00:181
2039482994746,1cyclictest2218741-21nodev-device-ev22:35:189
2039496994544,1cyclictest0-21swapper/722:05:2113
203951099435,13cyclictest0-21swapper/1122:50:143
2039512993938,1cyclictest0-21swapper/1222:25:194
2039472993737,0cyclictest0-21swapper/000:16:130
2039516993635,1cyclictest2060597-21nodev-device-ev19:30:185
2039516993534,1cyclictest0-21swapper/1322:15:225
2039516993426,5cyclictest0-21swapper/1321:45:175
2039472993433,0cyclictest0-21swapper/019:20:190
2039490993332,1cyclictest2227288-21nodev-device-ev22:45:1711
2039472993131,0cyclictest0-21swapper/020:30:270
2039502993029,1cyclictest2304273-21nodev-device-ev00:15:2115
2039496993029,1cyclictest2291408-21nodev-device-ev00:00:1913
203949299309,0cyclictest0-21swapper/619:38:0012
2039472993030,0cyclictest0-21swapper/021:08:030
2039472993030,0cyclictest0-21swapper/000:25:330
203951699290,27cyclictest0-21swapper/1300:25:185
2039502992929,0cyclictest0-21swapper/920:30:1915
2039472992929,0cyclictest0-21swapper/023:15:300
2039522992827,1cyclictest2055-21snmpd23:07:287
203952299280,27cyclictest0-21swapper/1522:55:177
203952299280,1cyclictest0-21swapper/1522:46:297
203952099282,26cyclictest0-21swapper/1422:30:166
203952099280,27cyclictest0-21swapper/1421:26:016
2039516992827,1cyclictest2055-21snmpd23:44:305
2039516992826,1cyclictest2055-21snmpd21:34:595
203951699280,27cyclictest0-21swapper/1323:47:365
203951699280,27cyclictest0-21swapper/1323:47:365
2039512992827,1cyclictest2055-21snmpd19:51:414
203951099284,11cyclictest0-21swapper/1100:29:053
203950699280,27cyclictest0-21swapper/1000:17:392
203950699280,27cyclictest0-21swapper/1000:00:032
2039500992826,1cyclictest2055-21snmpd20:50:0114
203950099280,27cyclictest2116117-21daemon-init20:35:1814
203950099280,27cyclictest2116117-21daemon-init20:35:1814
203950099280,27cyclictest0-21swapper/819:24:0114
203949699280,27cyclictest0-21swapper/719:18:3213
203949699280,27cyclictest0-21swapper/700:24:4213
2039492992827,1cyclictest2055-21snmpd21:28:3812
2039492992827,1cyclictest2055-21snmpd19:47:5712
203949299280,27cyclictest0-21swapper/623:50:0512
203949299280,27cyclictest0-21swapper/623:50:0512
203949299280,27cyclictest0-21swapper/621:57:2612
203949299280,27cyclictest0-21swapper/621:45:2012
203949099280,27cyclictest0-21swapper/519:43:4711
2039482992826,1cyclictest2056175-21kworker/3:0+events20:15:139
203948299280,27cyclictest0-21swapper/322:20:549
2039480992823,2cyclictest0-21swapper/222:30:168
2039480992822,3cyclictest0-21swapper/221:55:158
203948099280,27cyclictest0-21swapper/221:34:418
2039472992828,0cyclictest2064839-21kworker/0:2+events22:08:420
2039472992828,0cyclictest0-21swapper/023:13:320
2039472992828,0cyclictest0-21swapper/023:06:200
2039472992828,0cyclictest0-21swapper/022:40:180
2039472992828,0cyclictest0-21swapper/022:31:070
2039472992827,1cyclictest2055-21snmpd19:19:130
203952299270,25cyclictest0-21swapper/1519:55:167
2039520992726,1cyclictest2055-21snmpd23:49:126
2039520992726,1cyclictest2055-21snmpd23:49:116
2039520992726,1cyclictest2055-21snmpd19:52:266
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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