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2026-06-10 - 17:25
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Data to construct the above plot have been generated using the RT test utility cyclictest.

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 rackbslot6.osadl.org (updated Wed Jun 10, 2026 12:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
666821810,5sleep12748799cyclictest09:09:591
2344121630,3sleep32750299cyclictest12:29:583
1068911370,3ptp4l401ktimersoftd/308:46:183
86682850,2sleep10-21swapper/111:09:501
106891650,1ptp4l401ktimersoftd/313:59:163
27496996310,20cyclictest24648-21ssh10:52:492
27496996110,19cyclictest3731-21ssh11:36:332
2749699597,25cyclictest27134-21ssh13:40:012
27496995710,19cyclictest25854-21phc2sys13:05:052
27487995748,4cyclictest25-21ksoftirqd/111:59:531
252772570,1sleep10-21swapper/110:53:521
252412574,39sleep10-21swapper/108:44:441
106891570,1ptp4l401ktimersoftd/312:39:213
2749699565,13cyclictest30005-21if_ens309:59:562
2749699565,13cyclictest30005-21if_ens309:59:562
2749699557,17cyclictest28374-21snmp_o5powerctl09:55:052
203222550,1sleep10-21swapper/112:59:591
106891550,1ptp4l391rcuc/313:42:373
99652540,2sleep20-21swapper/212:49:442
2749699546,12cyclictest17731-21cat12:24:432
45292530,2sleep20-21swapper/212:10:102
2749699536,13cyclictest7021-21cat11:40:012
2749699536,13cyclictest20311-21timerwakeupswit14:05:122
2749699536,12cyclictest3021-21ssh13:49:042
2749699516,12cyclictest27371-21ssh11:28:392
2749699506,17cyclictest8282-21latency_hist13:54:452
2749699506,15cyclictest15072-21snmp_o5powerctl11:15:052
2749699506,12cyclictest19393-21cat10:44:572
2749699504,12cyclictest23503-21grep14:09:572
106891500,2ptp4l23701-21kworker/3:010:40:323
2749699495,11cyclictest31640-21seq11:32:342
106891490,2ptp4l31247-21kworker/3:213:46:113
106891490,1ptp4l401ktimersoftd/312:21:063
2749699488,14cyclictest3529-21/usr/sbin/munin11:04:502
2749699485,12cyclictest20823-21diskmemload14:01:392
2749699475,15cyclictest12368-21snmp_o5powerctl11:45:072
27487994740,4cyclictest25-21ksoftirqd/112:39:541
2749699466,9cyclictest20091-21diskstats12:59:572
2749699455,11cyclictest20823-21diskmemload13:57:482
27487994539,3cyclictest25-21ksoftirqd/111:04:511
27487994538,4cyclictest25-21ksoftirqd/112:19:531
2749699445,16cyclictest9180-21snmp_o5powerctl09:15:052
266732424,23sleep025249-21/usr/sbin/munin08:45:070
106891420,1ptp4l401ktimersoftd/312:47:113
106891400,17ptp4l401ktimersoftd/310:00:053
106891400,17ptp4l401ktimersoftd/310:00:053
106891390,1ptp4l401ktimersoftd/313:33:403
106891390,1ptp4l401ktimersoftd/313:10:453
106891390,1ptp4l401ktimersoftd/311:21:313
2749699389,13cyclictest29995-21ssh10:58:312
2749699387,16cyclictest20823-21diskmemload10:59:522
27487993831,4cyclictest25-21ksoftirqd/109:54:521
106891380,1ptp4l401ktimersoftd/313:53:343
106891380,1ptp4l401ktimersoftd/313:38:223
106891380,1ptp4l401ktimersoftd/312:54:573
106891380,1ptp4l401ktimersoftd/311:15:193
106891380,1ptp4l401ktimersoftd/310:58:013
106891380,1ptp4l401ktimersoftd/310:49:473
106891380,0ptp4l401ktimersoftd/314:01:553
106891380,0ptp4l401ktimersoftd/311:50:103
106891380,0ptp4l401ktimersoftd/311:12:463
106891380,0ptp4l401ktimersoftd/311:02:093
27502993732,3cyclictest7524-21cron09:14:383
106891370,1ptp4l401ktimersoftd/314:16:293
106891370,1ptp4l401ktimersoftd/313:17:193
106891370,1ptp4l401ktimersoftd/313:01:503
106891370,1ptp4l401ktimersoftd/312:26:573
106891370,1ptp4l401ktimersoftd/312:11:553
106891370,1ptp4l401ktimersoftd/312:03:393
106891370,1ptp4l401ktimersoftd/311:45:333
106891370,1ptp4l401ktimersoftd/311:33:003
106891370,1ptp4l401ktimersoftd/311:26:213
106891370,1ptp4l401ktimersoftd/311:04:533
2749699364,11cyclictest20929-21ssh12:27:002
27487993624,10cyclictest25-21ksoftirqd/112:05:021
106891360,1ptp4l401ktimersoftd/313:24:513
106891360,1ptp4l401ktimersoftd/311:55:483
106891360,0ptp4l401ktimersoftd/314:04:573
2749699359,9cyclictest30792-21df12:04:532
2749699357,12cyclictest12578-21sed10:29:572
27487993529,3cyclictest25-21ksoftirqd/113:39:441
106891350,1ptp4l401ktimersoftd/314:12:123
106891350,1ptp4l401ktimersoftd/311:36:543
106891350,11ptp4l401ktimersoftd/309:34:533
106891350,0ptp4l401ktimersoftd/312:51:273
2749699347,9cyclictest4446-21snmp_o5powerctl09:05:042
2749699346,5cyclictest0-21swapper/214:17:592
2749699346,12cyclictest10358-21acpi09:19:482
2749699346,12cyclictest0-21swapper/211:20:082
2749699344,11cyclictest0-21swapper/208:59:552
2749699340,10cyclictest0-21swapper/211:55:572
27487993428,3cyclictest25-21ksoftirqd/113:24:431
27487993427,3cyclictest25-21ksoftirqd/110:54:511
27483993429,3cyclictest9-21ksoftirqd/011:09:410
2676423410,12sleep233-21ksoftirqd/208:45:092
106891340,2ptp4l23701-21kworker/3:009:43:093
106891340,1ptp4l401ktimersoftd/312:15:583
2749699339,9cyclictest28107-21ssh12:34:562
2749699336,17cyclictest0-21swapper/213:25:492
27487993327,4cyclictest25-21ksoftirqd/113:39:481
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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