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2026-07-10 - 19:20
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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 100 highest latencies:
System rack6slot0.osadl.org (updated Fri Jul 10, 2026 13:02:36)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3722899226221,3cyclictest4398-21qemu-system-x8612:20:2132
3722899226221,3cyclictest4398-21qemu-system-x8612:20:2132
3719899212146,62cyclictest3544-21CPU7
3719899212146,62cyclictest3544-21CPU7
3720899208160,43cyclictest0-21swapper/2411:44:4717
3720899208160,43cyclictest0-21swapper/2411:44:4617
3718199202191,6cyclictest0-21swapper/110:04:391
3718199202191,6cyclictest0-21swapper/110:04:381
3720499201189,9cyclictest0-21swapper/2010:33:4813
3720499201189,9cyclictest0-21swapper/2010:33:4813
3720499201189,9cyclictest0-21swapper/2010:33:4713
37180991990,175cyclictest0-21swapper/009:51:250
37180991990,175cyclictest0-21swapper/009:51:250
37180991990,175cyclictest0-21swapper/009:51:240
3718099198164,31cyclictest0-21swapper/011:01:580
3718099198164,31cyclictest0-21swapper/011:01:580
3720899197118,68cyclictest0-21swapper/2411:17:5817
3720899197118,68cyclictest0-21swapper/2411:17:5817
3721599195180,5cyclictest0-21swapper/3010:45:1224
3721599195180,5cyclictest0-21swapper/3010:45:1124
3720499193151,36cyclictest2461-21CPU13
3720499193151,36cyclictest2461-21CPU13
3718099192141,42cyclictest0-21swapper/010:46:330
3718099192141,42cyclictest0-21swapper/010:46:330
372099919024,152cyclictest0-21swapper/2510:10:2118
372099919024,152cyclictest0-21swapper/2510:10:2118
372099919024,152cyclictest0-21swapper/2510:10:2118
3722599188103,80cyclictest2057-21sshd11:00:1729
3722599188103,80cyclictest2057-21sshd11:00:1629
371929918815,168cyclictest0-21swapper/1111:20:183
371929918815,168cyclictest0-21swapper/1111:20:173
371929918815,168cyclictest0-21swapper/1111:20:173
3720699186177,7cyclictest0-21swapper/2212:35:3515
3720699186177,7cyclictest0-21swapper/2212:35:3415
3720699186177,7cyclictest0-21swapper/2212:35:3415
3720499186177,7cyclictest0-21swapper/2011:22:2013
3720499186177,7cyclictest0-21swapper/2011:22:1913
3720499186177,7cyclictest0-21swapper/2011:22:1913
3720899185167,13cyclictest0-21swapper/2412:37:4717
3720899185167,13cyclictest0-21swapper/2412:37:4717
3720899185167,13cyclictest0-21swapper/2412:37:4617
3718099184157,24cyclictest0-21swapper/011:10:050
3718099184157,24cyclictest0-21swapper/011:10:040
3718099184139,33cyclictest0-21swapper/011:23:400
3718099184139,33cyclictest0-21swapper/011:23:400
3718099184139,33cyclictest0-21swapper/011:23:390
372259918369,104cyclictest0-21swapper/3512:15:1529
372259918369,104cyclictest0-21swapper/3512:15:1529
372259918369,104cyclictest0-21swapper/3512:15:1429
3720899183164,8cyclictest171rcu_preempt08:14:1017
3720899183164,8cyclictest171rcu_preempt08:14:1017
3720899183164,8cyclictest171rcu_preempt08:14:1017
3720899183146,15cyclictest171rcu_preempt08:35:2617
3720899183146,15cyclictest171rcu_preempt08:35:2617
3720499183162,14cyclictest0-21swapper/2009:39:1013
3720499183162,14cyclictest0-21swapper/2009:39:1013
3719699183179,2cyclictest0-21swapper/1410:11:276
3719699183179,2cyclictest0-21swapper/1410:11:266
3719699183179,2cyclictest0-21swapper/1410:11:266
3718099183140,41cyclictest17484-21nfsd10:09:040
3718099183140,41cyclictest17484-21nfsd10:09:040
3718099183140,41cyclictest17484-21nfsd10:09:040
3722599182125,53cyclictest3610-21CPU29
3722599182125,53cyclictest3610-21CPU29
372139918287,77cyclictest3609-21CPU21
372139918287,77cyclictest3609-21CPU21
372229918045,130cyclictest0-21swapper/3412:20:1428
372229918045,130cyclictest0-21swapper/3412:20:1328
3718599180168,6cyclictest0-21swapper/509:17:2235
3718599180168,6cyclictest0-21swapper/509:17:2135
3718199180167,8cyclictest0-21swapper/107:30:041
3720899179135,19cyclictest171rcu_preempt09:29:5117
3720899179135,19cyclictest171rcu_preempt09:29:5017
3720299179168,6cyclictest0-21swapper/1807:27:3210
3720299179168,6cyclictest0-21swapper/1807:27:3210
3720299179155,21cyclictest0-21swapper/1810:34:2610
3720299179155,21cyclictest0-21swapper/1810:34:2610
3720299179155,21cyclictest0-21swapper/1810:34:2610
3722599178139,36cyclictest0-21swapper/3512:35:1429
3722599178139,36cyclictest0-21swapper/3512:35:1429
3722599178139,36cyclictest0-21swapper/3512:35:1329
3722599178139,34cyclictest0-21swapper/3509:27:1929
3722599178139,34cyclictest0-21swapper/3509:27:1829
372229917871,100cyclictest0-21swapper/3408:05:1828
372229917871,100cyclictest0-21swapper/3408:05:1828
3720899178167,9cyclictest0-21swapper/2407:45:0517
3720899178167,9cyclictest0-21swapper/2407:45:0517
3719899178166,11cyclictest0-21swapper/1512:08:247
3719899178166,11cyclictest0-21swapper/1512:08:237
3720899177132,32cyclictest3544-21CPU17
3720899177132,32cyclictest3544-21CPU17
37180991770,169cyclictest0-21swapper/012:20:150
37180991770,169cyclictest0-21swapper/012:20:150
3720299176161,5cyclictest0-21swapper/1811:23:0910
3720299176161,5cyclictest0-21swapper/1811:23:0910
3720299176161,5cyclictest0-21swapper/1811:23:0910
3718199176168,6cyclictest0-21swapper/111:17:051
3718199176168,6cyclictest0-21swapper/111:17:041
371809917618,148cyclictest0-21swapper/009:55:220
371809917618,148cyclictest0-21swapper/009:55:220
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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