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2025-12-25 - 21:34
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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
Characteristics of the highest latencies:
System rackcslot2.osadl.org (updated Thu Dec 25, 2025 12:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
323382700,2sleep12816899cyclictest11:30:161
2790326452,8sleep10-21swapper/107:09:051
2758726351,8sleep00-21swapper/007:05:440
93032590,0sleep10-21swapper/110:30:171
28167992810,0cyclictest0-21swapper/010:40:070
2816799280,5cyclictest15358-21ls12:10:150
28168992726,1cyclictest0-21swapper/109:45:531
28168992725,1cyclictest24-21ksoftirqd/107:24:561
28167992718,9cyclictest1792-21kworker/0:208:53:460
28167992710,16cyclictest0-21swapper/008:21:500
2816899266,10cyclictest91rcu_preempt09:10:141
2816899262,1cyclictest91rcu_preempt07:41:131
28168992514,6cyclictest24-21ksoftirqd/108:00:161
28167992518,5cyclictest599-21avahi-daemon08:47:160
2816899246,3cyclictest91rcu_preempt07:10:061
28168992424,0cyclictest0-21swapper/109:56:011
28168992423,1cyclictest0-21swapper/107:18:321
28168992422,1cyclictest24-21ksoftirqd/111:59:561
2816799245,18cyclictest24928-21kworker/0:110:23:520
28167992417,6cyclictest25416-21apache_processe11:15:080
2816799241,22cyclictest18581-21kworker/0:007:50:000
28167992410,9cyclictest0-21swapper/009:00:080
28167992410,5cyclictest18976-21unixbench_singl10:55:180
28168992318,4cyclictest5602-21apache210:55:471
2816899230,16cyclictest0-21swapper/107:55:141
2816799235,11cyclictest0-21swapper/010:15:100
28167992323,0cyclictest0-21swapper/011:02:520
2816799232,20cyclictest18581-21kworker/0:007:45:340
28167992314,2cyclictest10170-21wget09:10:100
2816799231,21cyclictest1792-21kworker/0:209:33:280
28167992310,7cyclictest0-21swapper/009:20:130
28167992310,4cyclictest0-21swapper/011:41:580
28168992222,0cyclictest24-21ksoftirqd/109:50:081
28168992220,1cyclictest414-21awk10:10:091
28168992212,5cyclictest0-21swapper/110:05:151
28168992210,10cyclictest100150irq/106-eth1-rx10:20:161
2816799224,17cyclictest18581-21kworker/0:007:22:260
28167992222,0cyclictest0-21swapper/010:47:180
2816899217,10cyclictest0-21swapper/110:40:071
2816899216,6cyclictest0-21swapper/108:25:101
2816899214,9cyclictest0-21swapper/112:25:171
2816899214,10cyclictest0-21swapper/108:35:141
28168992110,7cyclictest0-21swapper/112:20:081
28168992110,6cyclictest0-21swapper/112:10:121
28168992110,6cyclictest0-21swapper/110:25:071
28168992110,6cyclictest0-21swapper/107:25:161
2816799217,6cyclictest0-21swapper/007:25:150
28167992121,0cyclictest0-21swapper/010:32:430
28167992111,5cyclictest0-21swapper/011:30:120
28167992110,7cyclictest0-21swapper/010:09:510
28167992110,3cyclictest0-21swapper/007:15:090
28167992110,2cyclictest0-21swapper/011:45:150
2816899209,10cyclictest0-21swapper/108:45:161
2816899203,7cyclictest0-21swapper/110:00:081
2816899202,3cyclictest91rcu_preempt09:30:151
28168992019,1cyclictest24-21ksoftirqd/109:35:141
28168992017,2cyclictest24-21ksoftirqd/111:00:141
28168992016,1cyclictest24-21ksoftirqd/109:15:111
28168992015,4cyclictest24-21ksoftirqd/112:30:171
28168992013,5cyclictest0-21swapper/108:20:141
2816899201,18cyclictest3512-21/usr/sbin/munin07:30:191
28168992010,7cyclictest0-21swapper/109:43:261
2816799206,13cyclictest1792-21kworker/0:209:26:180
2816799206,11cyclictest0-21swapper/011:35:150
28167992015,2cyclictest802-21apache208:13:490
408621910,0sleep10-21swapper/110:19:511
2816899199,4cyclictest5737-21ls11:45:171
2816899196,6cyclictest10391-21cut10:35:081
2816899194,8cyclictest0-21swapper/109:05:061
2816899192,2cyclictest91rcu_preempt11:23:031
2816899192,13cyclictest0-21swapper/108:55:171
28168991919,0cyclictest0-21swapper/111:35:201
28168991911,3cyclictest24-21ksoftirqd/110:51:141
28168991910,5cyclictest0-21swapper/111:15:091
28168991910,4cyclictest0-21swapper/111:40:131
2816899190,9cyclictest0-21swapper/111:25:061
2816899190,3cyclictest91rcu_preempt08:50:141
2816799195,5cyclictest0-21swapper/009:45:150
2816799195,11cyclictest24928-21kworker/0:111:07:080
2816799193,9cyclictest0-21swapper/012:00:170
28167991913,4cyclictest23132-21uptime12:30:180
1688421910,0sleep10-21swapper/109:25:351
2816899185,8cyclictest0-21swapper/110:45:121
2816899184,9cyclictest0-21swapper/112:35:131
2816899183,4cyclictest91rcu_preempt08:40:461
2816899183,10cyclictest0-21swapper/111:05:091
2816899182,9cyclictest0-21swapper/112:05:141
2816899182,11cyclictest0-21swapper/112:00:081
2816899181,10cyclictest0-21swapper/108:15:071
28168991810,4cyclictest0-21swapper/108:10:081
2816799186,8cyclictest0-21swapper/012:25:130
2816799185,7cyclictest0-21swapper/008:00:140
2816799185,12cyclictest20090-21kworker/0:009:42:460
2816799182,8cyclictest0-21swapper/007:10:130
28167991817,0cyclictest0-21swapper/010:25:110
28167991811,1cyclictest0-21swapper/012:35:450
28167991810,6cyclictest0-21swapper/008:28:200
28167991810,5cyclictest0-21swapper/011:50:080
28167991810,4cyclictest0-21swapper/011:25:060
28167991810,4cyclictest0-21swapper/011:20:150
28167991810,4cyclictest0-21swapper/008:30:140
28167991810,2cyclictest0-21swapper/008:38:290
2816899173,9cyclictest0-21swapper/108:05:141
2816899172,10cyclictest0-21swapper/111:12:241
28168991710,5cyclictest0-21swapper/109:22:291
28168991710,3cyclictest0-21swapper/107:50:081
2816799175,7cyclictest0-21swapper/010:00:150
2816799174,12cyclictest1792-21kworker/0:209:19:300
2816799173,8cyclictest0-21swapper/010:50:070
2816799173,5cyclictest18914-21/usr/sbin/munin12:20:150
2816799171,9cyclictest0-21swapper/007:30:120
28167991717,0cyclictest81ktimersoftd/007:35:080
28167991712,4cyclictest770-21irqbalance09:53:360
2816799171,11cyclictest0-21swapper/010:35:140
28167991710,3cyclictest0-21swapper/012:09:560
28167991710,3cyclictest0-21swapper/009:05:160
28167991710,3cyclictest0-21swapper/008:15:170
1775121710,0sleep10-21swapper/112:19:011
2829821610,0sleep10-21swapper/108:32:331
2816899163,8cyclictest7252-21/usr/sbin/munin09:00:161
28168991610,4cyclictest0-21swapper/107:45:101
2816799165,4cyclictest0-21swapper/008:55:080
2816799162,9cyclictest16095-21apache_accesses12:15:070
28167991611,2cyclictest100150irq/106-eth1-rx07:55:300
28167991610,3cyclictest0-21swapper/010:10:540
28167991610,3cyclictest0-21swapper/009:35:140
2816799160,8cyclictest0-21swapper/011:10:080
28168991512,2cyclictest0-21swapper/107:35:081
28168991510,2cyclictest0-21swapper/111:50:121
2816799151,7cyclictest0-21swapper/011:55:060
28167991510,1cyclictest0-21swapper/008:09:250
743321410,3sleep00-21swapper/007:39:560
2816799143,6cyclictest31312-21ls08:40:120
28167991410,2cyclictest0-21swapper/009:55:140
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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