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2025-12-14 - 16:38
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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 rackcslot8.osadl.org (updated Sun Dec 14, 2025 12:47:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
163709916314,117cyclictest0-21swapper/1508:00:017
164139914521,56cyclictest0-21swapper/2511:05:1318
16370991449,93cyclictest0-21swapper/1508:55:147
163589913845,42cyclictest0-21swapper/1209:55:244
163629913744,62cyclictest0-21swapper/1311:19:595
164139913645,57cyclictest0-21swapper/2511:20:1118
164139913446,49cyclictest0-21swapper/2512:15:0118
164139913446,49cyclictest0-21swapper/2512:15:0118
163709913427,64cyclictest0-21swapper/1510:39:267
164139913238,52cyclictest0-21swapper/2511:25:1918
163669913228,62cyclictest0-21swapper/1411:35:306
163709913123,64cyclictest0-21swapper/1511:33:557
164219913042,58cyclictest0-21swapper/2709:37:5920
330891129121,6phc2sys0-21swapper/207:05:3512
330891129121,6phc2sys0-21swapper/207:05:3512
163589912924,63cyclictest0-21swapper/1210:15:124
163709912823,64cyclictest0-21swapper/1510:30:207
163319912821,81cyclictest0-21swapper/710:25:2329
163709912714,54cyclictest151rcu_preempt08:05:167
163669912736,57cyclictest0-21swapper/1411:15:126
163589912723,66cyclictest0-21swapper/1211:40:014
163589912723,62cyclictest0-21swapper/1212:40:024
163589912723,62cyclictest0-21swapper/1212:40:014
163319912741,56cyclictest0-21swapper/709:42:3929
162869912643,53cyclictest0-21swapper/009:05:120
164219912523,63cyclictest0-21swapper/2711:15:2520
163709912522,64cyclictest0-21swapper/1509:52:577
163629912524,61cyclictest0-21swapper/1312:07:035
163629912524,61cyclictest0-21swapper/1312:07:035
163629912523,62cyclictest0-21swapper/1309:45:255
163629912523,61cyclictest0-21swapper/1309:28:515
163629912520,59cyclictest0-21swapper/1310:30:195
163319912522,60cyclictest0-21swapper/710:40:0129
16418991240,121cyclictest151rcu_preempt09:28:0019
163669912422,58cyclictest0-21swapper/1410:50:396
163629912425,58cyclictest0-21swapper/1310:11:365
164219912322,62cyclictest0-21swapper/2709:15:0120
163709912343,48cyclictest0-21swapper/1508:19:267
163709912324,64cyclictest0-21swapper/1512:14:317
163709912324,64cyclictest0-21swapper/1512:14:317
163669912322,56cyclictest0-21swapper/1407:58:356
163669912223,58cyclictest0-21swapper/1408:46:086
163629912220,61cyclictest0-21swapper/1309:39:005
163589912241,46cyclictest0-21swapper/1209:34:004
163589912219,61cyclictest0-21swapper/1212:15:244
163589912219,61cyclictest0-21swapper/1212:15:244
162869912240,55cyclictest0-21swapper/009:18:490
164219912122,56cyclictest0-21swapper/2708:25:2420
164219912118,62cyclictest0-21swapper/2710:25:1120
163709912123,57cyclictest0-21swapper/1509:12:347
163669912125,61cyclictest0-21swapper/1411:28:336
163669912119,59cyclictest0-21swapper/1407:11:026
163629912121,60cyclictest0-21swapper/1311:59:315
163629912121,60cyclictest0-21swapper/1311:59:315
163629912121,53cyclictest0-21swapper/1307:10:295
163589912121,60cyclictest0-21swapper/1211:00:024
163319912126,55cyclictest0-21swapper/711:50:2029
163319912126,55cyclictest0-21swapper/711:50:2029
149132121114,6sleep80-21swapper/807:07:2930
149132121114,6sleep80-21swapper/807:07:2930
164139912022,57cyclictest0-21swapper/2510:19:4918
163709912024,61cyclictest0-21swapper/1512:25:127
163709912024,61cyclictest0-21swapper/1512:25:127
163669912023,50cyclictest0-21swapper/1407:15:186
163589912036,51cyclictest0-21swapper/1212:02:304
163589912036,51cyclictest0-21swapper/1212:02:304
163319912033,56cyclictest0-21swapper/709:25:0029
163319912024,60cyclictest0-21swapper/710:20:0329
163319912015,61cyclictest0-21swapper/708:50:1729
164219911921,58cyclictest0-21swapper/2712:00:1720
164219911921,58cyclictest0-21swapper/2712:00:1720
164219911920,60cyclictest0-21swapper/2710:40:4120
164139911923,58cyclictest0-21swapper/2511:10:0218
163669911923,49cyclictest0-21swapper/1411:55:166
163669911923,49cyclictest0-21swapper/1411:55:166
163629911924,58cyclictest0-21swapper/1310:35:065
163629911920,59cyclictest0-21swapper/1308:10:235
163589911923,56cyclictest0-21swapper/1208:45:254
163589911922,59cyclictest0-21swapper/1209:18:294
163589911921,61cyclictest0-21swapper/1211:45:024
164219911820,55cyclictest0-21swapper/2708:05:1320
164139911826,60cyclictest0-21swapper/2510:20:2118
164139911821,54cyclictest0-21swapper/2512:22:4218
164139911821,54cyclictest0-21swapper/2512:22:4218
164139911815,59cyclictest0-21swapper/2511:00:1218
163669911826,55cyclictest0-21swapper/1409:20:206
163669911824,56cyclictest0-21swapper/1409:15:186
163669911821,52cyclictest0-21swapper/1410:06:476
163629911823,56cyclictest0-21swapper/1309:20:195
163589911824,58cyclictest0-21swapper/1208:35:134
163589911814,61cyclictest0-21swapper/1209:40:244
163319911823,60cyclictest0-21swapper/710:55:1829
163319911823,56cyclictest0-21swapper/711:10:1629
162869911844,48cyclictest0-21swapper/012:02:010
162869911844,48cyclictest0-21swapper/012:02:010
162869911832,53cyclictest0-21swapper/009:01:080
164219911724,57cyclictest0-21swapper/2709:53:0820
164219911723,58cyclictest0-21swapper/2709:20:0020
164219911721,52cyclictest0-21swapper/2710:01:0920
164189911731,78cyclictest151rcu_preempt10:34:1519
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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