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2025-12-26 - 04:09
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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 rack0slot5.osadl.org (updated Fri Dec 26, 2025 00:43:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
33266029946819,29cyclictest0-21swapper/1423:09:586
33266049946513,58cyclictest0-21swapper/1520:49:307
33265559945225,28cyclictest0-21swapper/322:18:199
33265889945024,30cyclictest0-21swapper/1119:33:353
33266029944920,30cyclictest0-21swapper/1421:54:576
33265519944821,30cyclictest0-21swapper/222:04:568
33265519944417,425cyclictest0-21swapper/219:43:178
33265519944417,29cyclictest0-21swapper/223:19:578
33265519944415,29cyclictest0-21swapper/221:08:208
33265439944320,419cyclictest3469057-21perf22:09:310
33265439944319,30cyclictest0-21swapper/021:09:300
33266029944214,30cyclictest0-21swapper/1420:26:586
33265519944217,29cyclictest0-21swapper/200:37:188
33265519944213,426cyclictest0-21swapper/219:53:188
33265519944116,29cyclictest0-21swapper/219:20:198
33265519944116,28cyclictest0-21swapper/221:41:578
33265659944016,30cyclictest0-21swapper/619:46:3512
33265519944014,29cyclictest0-21swapper/200:11:578
33265519944013,30cyclictest0-21swapper/219:25:188
33266049943913,30cyclictest0-21swapper/1523:15:357
33265659943911,424cyclictest0-21swapper/600:13:3412
33265519943914,29cyclictest0-21swapper/200:04:198
33266029943710,30cyclictest0-21swapper/1420:11:576
33266029943614,29cyclictest0-21swapper/1420:15:206
33266029943612,29cyclictest0-21swapper/1423:45:586
33266029943612,29cyclictest0-21swapper/1423:45:586
3326551994368,30cyclictest0-21swapper/219:37:598
3326602994358,30cyclictest0-21swapper/1421:26:166
3326551994359,424cyclictest0-21swapper/223:53:568
33265519943517,29cyclictest0-21swapper/220:56:358
33265519943517,29cyclictest0-21swapper/220:56:358
33265519943510,29cyclictest0-21swapper/220:27:588
3326602994348,30cyclictest0-21swapper/1423:18:566
332658899434429,5cyclictest1802-21snmpd22:19:483
3326551994349,29cyclictest0-21swapper/223:32:168
3326551994348,28cyclictest0-21swapper/221:28:578
3326551994347,425cyclictest0-21swapper/223:04:198
3326604994338,29cyclictest0-21swapper/1522:42:357
3326602994335,30cyclictest0-21swapper/1420:08:566
3326551994338,29cyclictest0-21swapper/221:35:198
3326551994337,29cyclictest0-21swapper/221:58:578
3326551994337,28cyclictest0-21swapper/219:10:208
332659399431431,0cyclictest0-21swapper/1200:34:584
332659399431431,0cyclictest0-21swapper/1200:17:354
3326551994317,29cyclictest0-21swapper/222:04:208
3326543994286,28cyclictest0-21swapper/022:27:350
3326604994270,30cyclictest0-21swapper/1500:31:347
332654699427424,2cyclictest3376646-21kworker/1:2+pm20:11:291
3326604994262,30cyclictest0-21swapper/1520:15:357
3326604994250,29cyclictest0-21swapper/1500:36:347
3326604994240,29cyclictest0-21swapper/1521:40:357
332659399424423,1cyclictest0-21swapper/1223:03:314
332657499424424,0cyclictest0-21swapper/821:30:4714
33265659942326,396cyclictest0-21swapper/622:05:3512
332659799422422,0cyclictest0-21swapper/1320:19:585
332659399422420,1cyclictest3505137-21kworker/12:5+i915-unordered23:43:594
332659399422420,1cyclictest3505137-21kworker/12:5+i915-unordered23:43:594
3326593994220,421cyclictest0-21swapper/1220:53:204
3326593994220,421cyclictest0-21swapper/1220:53:204
33266049942125,393cyclictest0-21swapper/1520:20:357
33265659942122,396cyclictest0-21swapper/623:54:3012
332655799421418,3cyclictest1802-21snmpd22:31:3310
332654399421418,2cyclictest3540734-21kworker/u64:8+events_unbound00:04:580
332660499419415,3cyclictest3427082-21prio-rpc-libvir21:09:567
33266049941923,395cyclictest0-21swapper/1519:14:587
3326604994190,29cyclictest0-21swapper/1500:27:347
33266049941823,393cyclictest0-21swapper/1521:37:357
33266049941823,392cyclictest0-21swapper/1520:27:357
33265889941823,393cyclictest0-21swapper/1120:08:353
33266049941715,399cyclictest0-21swapper/1522:54:577
3326604994169,405cyclictest0-21swapper/1520:52:357
3326604994169,405cyclictest0-21swapper/1520:52:357
33266049941620,395cyclictest0-21swapper/1523:02:357
33265629941617,398cyclictest0-21swapper/521:44:5811
33265519941619,395cyclictest0-21swapper/223:19:188
332659399415413,2cyclictest0-21swapper/1222:19:484
33265709941519,395cyclictest0-21swapper/721:54:3013
33265579941514,400cyclictest0-21swapper/400:35:5610
33265519941516,396cyclictest0-21swapper/223:56:588
33265659941417,396cyclictest0-21swapper/619:51:3512
33265629941414,399cyclictest0-21swapper/521:59:5611
33265579941416,397cyclictest0-21swapper/423:08:1910
33265579941415,398cyclictest0-21swapper/419:11:5610
33265519941417,395cyclictest0-21swapper/221:49:578
33265519941417,395cyclictest0-21swapper/200:32:568
33265519941416,395cyclictest0-21swapper/200:17:188
332656599413410,2cyclictest3521389-21kworker/u64:5+events_unbound23:06:1812
33265579941314,398cyclictest0-21swapper/422:16:5710
33265519941315,395cyclictest0-21swapper/222:54:208
33265519941315,395cyclictest0-21swapper/221:47:578
33266049941218,392cyclictest0-21swapper/1521:55:357
33265889941214,397cyclictest0-21swapper/1120:59:563
33265889941214,397cyclictest0-21swapper/1120:59:563
332657699412412,0cyclictest0-21swapper/920:11:2915
33265709941219,393cyclictest0-21swapper/719:26:1913
33265659941215,396cyclictest0-21swapper/622:48:3512
33265629941213,395cyclictest0-21swapper/522:16:3511
33265579941214,397cyclictest0-21swapper/423:52:1910
33265579941213,398cyclictest0-21swapper/423:43:5810
33265579941213,398cyclictest0-21swapper/423:43:5810
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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