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2025-06-16 - 20:16
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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 100 highest latencies:
System rackfslot7.osadl.org (updated Mon Jun 16, 2025 12:46:18)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
765390999153,38cyclictest0-21swapper/309:50:193
76539099877,79cyclictest784768-21chrt07:42:373
76539099856,39cyclictest0-21swapper/308:20:113
765390997537,19cyclictest919897-21timerwakeupswit11:40:293
765390997537,19cyclictest919897-21timerwakeupswit11:40:293
765390997437,18cyclictest511ktimers/307:11:553
765390997437,18cyclictest511ktimers/307:11:543
765390997212,59cyclictest923702-21kworker/u32:2+events_unbound12:28:303
765390997131,40cyclictest0-21swapper/309:21:413
765390996910,39cyclictest915277-21kworker/u32:3+events_unbound11:38:063
765390996810,39cyclictest904138-21aten2.4-expect11:15:143
765390996225,37cyclictest511ktimers/308:41:153
76539099612,40cyclictest1089-21snmpd12:01:303
765390996123,19cyclictest501rcuc/309:45:143
765390996122,39cyclictest0-21swapper/309:44:393
765390996122,39cyclictest0-21swapper/309:10:593
765390996118,21cyclictest778-21dbus-daemon10:50:203
76539099590,40cyclictest882510-21if_err_eno110:35:233
76539099590,0cyclictest0-21swapper/308:36:113
765390995839,19cyclictest511ktimers/311:24:273
76539099580,39cyclictest950327-21if_eno212:35:183
76539099580,38cyclictest0-21swapper/308:49:513
765390995736,1cyclictest144798rtkit-daemon10:24:363
765390995719,19cyclictest0-21swapper/310:46:113
76539099570,38cyclictest2620273-21kworker/u32:6+events_unbound09:15:193
765390995638,18cyclictest511ktimers/310:05:193
765390995638,18cyclictest0-21swapper/308:30:153
765390995619,37cyclictest0-21swapper/308:56:393
765390995619,37cyclictest0-21swapper/307:25:513
765390995619,17cyclictest0-21swapper/310:44:023
765390995536,0cyclictest0-21swapper/307:37:573
765390995535,19cyclictest894780-21tail10:55:273
765390995519,36cyclictest0-21swapper/311:01:273
765390995519,36cyclictest0-21swapper/310:28:033
765390995519,17cyclictest0-21swapper/311:52:433
765390995519,17cyclictest0-21swapper/311:52:423
76539099550,15cyclictest0-21swapper/308:10:453
765391995411,19cyclictest0-21swapper/409:20:194
765390995436,18cyclictest9400712sleep312:16:173
765390995419,35cyclictest0-21swapper/309:27:113
765390995418,36cyclictest0-21swapper/307:22:353
765390995416,20cyclictest777467-21diskstats07:30:153
76539099540,54cyclictest0-21swapper/311:09:233
765387995416,19cyclictest8398512sleep009:20:200
765394995315,19cyclictest0-21swapper/711:30:197
765390995319,34cyclictest0-21swapper/312:10:073
765390995319,34cyclictest0-21swapper/311:31:433
765390995319,15cyclictest0-21swapper/311:26:063
765390995319,15cyclictest0-21swapper/308:04:053
765390995314,39cyclictest0-21swapper/312:31:013
765390995314,39cyclictest0-21swapper/312:05:413
765390995314,39cyclictest0-21swapper/311:58:533
765390995314,39cyclictest0-21swapper/311:58:523
765390995314,39cyclictest0-21swapper/311:46:513
765390995314,39cyclictest0-21swapper/311:46:513
765390995314,39cyclictest0-21swapper/311:10:053
765390995314,39cyclictest0-21swapper/310:15:333
765390995314,39cyclictest0-21swapper/310:10:193
765390995314,39cyclictest0-21swapper/310:02:093
765390995314,39cyclictest0-21swapper/309:57:143
765390995314,39cyclictest0-21swapper/309:31:413
765390995314,39cyclictest0-21swapper/309:03:503
765390995314,39cyclictest0-21swapper/308:26:443
765390995314,39cyclictest0-21swapper/308:19:083
765390995314,39cyclictest0-21swapper/307:58:143
765390995314,39cyclictest0-21swapper/307:46:523
765390995314,39cyclictest0-21swapper/307:15:033
765394995214,19cyclictest0-21swapper/711:20:207
765391995214,19cyclictest0-21swapper/408:15:174
765390995233,19cyclictest0-21swapper/309:36:063
765390995213,39cyclictest0-21swapper/308:51:443
765390995213,39cyclictest0-21swapper/308:07:403
765388995228,4cyclictest191rcu_preempt09:30:211
765387995233,19cyclictest0-21swapper/009:30:220
765394995113,19cyclictest0-21swapper/712:15:217
765390995112,39cyclictest0-21swapper/310:33:523
765390995112,39cyclictest0-21swapper/307:52:553
765390995011,39cyclictest0-21swapper/312:22:233
765390994910,39cyclictest0-21swapper/309:06:273
76539499468,19cyclictest0-21swapper/710:45:197
76538799446,19cyclictest0-21swapper/011:55:200
76538799446,19cyclictest0-21swapper/011:55:190
76539499435,19cyclictest0-21swapper/708:50:217
76539399400,40cyclictest0-21swapper/608:25:176
76538999402,37cyclictest0-21swapper/207:43:492
76538799402,38cyclictest0-21swapper/012:20:170
76538799402,37cyclictest90450irq/65-eno6-TxRx-311:07:130
76539499380,19cyclictest0-21swapper/707:27:547
765391993814,19cyclictest0-21swapper/409:35:184
76538999381,37cyclictest90650irq/67-eno6-TxRx-510:49:162
765388993836,1cyclictest874-21mta-sts-daemon11:45:211
765388993836,1cyclictest874-21mta-sts-daemon11:45:201
765393993737,0cyclictest0-21swapper/610:50:216
765391993718,19cyclictest0-21swapper/412:20:164
765389993737,0cyclictest0-21swapper/211:07:122
765389993719,17cyclictest1078-21ntpd11:20:212
76538999371,36cyclictest90650irq/67-eno6-TxRx-511:04:292
76538999370,36cyclictest90650irq/67-eno6-TxRx-507:33:052
76538799370,37cyclictest90450irq/65-eno6-TxRx-307:54:370
765391993613,19cyclictest0-21swapper/411:40:224
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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