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2026-04-26 - 14:11
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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 Apr 26, 2026 00:49:29)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1693499333135,1cyclictest151rcu_preempt21:32:0512
1693499333135,1cyclictest151rcu_preempt21:32:0512
125862333325,6sleep250-21swapper/2519:05:1618
3273913190,311ptp4l0-21swapper/119:05:331
1693499295135,16cyclictest151rcu_preempt23:04:3312
169469925659,1cyclictest151rcu_preempt22:44:3626
169469922058,1cyclictest151rcu_preempt23:39:3726
330891167159,6phc2sys0-21swapper/219:05:2012
169399916416,147cyclictest0-21swapper/320:26:0223
169399916416,125cyclictest0-21swapper/319:45:1223
169399916316,98cyclictest0-21swapper/300:11:3623
169399916216,101cyclictest0-21swapper/322:30:5223
169399916216,101cyclictest0-21swapper/322:30:5223
1695099155154,1cyclictest151rcu_preempt00:39:4427
169399915216,102cyclictest0-21swapper/321:05:2323
169399915216,102cyclictest0-21swapper/321:05:2323
169399915016,91cyclictest0-21swapper/322:48:4823
16939991480,89cyclictest0-21swapper/320:06:3623
169399914716,89cyclictest0-21swapper/321:32:3823
169399914716,89cyclictest0-21swapper/321:32:3723
169399914516,77cyclictest0-21swapper/323:33:0723
169399914416,101cyclictest0-21swapper/321:01:1823
169399914316,126cyclictest0-21swapper/300:22:3623
16989991421,86cyclictest0-21swapper/920:30:1231
17011991380,82cyclictest0-21swapper/1200:36:254
170889913642,55cyclictest0-21swapper/2423:05:1417
170119913641,94cyclictest151rcu_preempt23:13:374
169509913638,94cyclictest151rcu_preempt22:25:2327
169509913638,94cyclictest151rcu_preempt22:25:2227
169399913616,89cyclictest0-21swapper/319:15:5023
169399913616,87cyclictest0-21swapper/323:48:5623
16923991361,80cyclictest0-21swapper/019:41:090
170889913540,62cyclictest0-21swapper/2422:20:2117
170889913540,62cyclictest0-21swapper/2422:20:2017
170889913442,58cyclictest0-21swapper/2423:56:0217
16989991340,73cyclictest0-21swapper/919:25:0031
169399913416,85cyclictest0-21swapper/321:45:5923
169399913416,85cyclictest0-21swapper/321:45:5923
170889913232,62cyclictest0-21swapper/2419:40:2017
169349913227,81cyclictest0-21swapper/221:05:1312
169349913227,81cyclictest0-21swapper/221:05:1312
169349913227,104cyclictest0-21swapper/220:55:1312
169239913217,73cyclictest0-21swapper/023:37:240
170889913128,64cyclictest0-21swapper/2420:55:2317
169899913157,73cyclictest0-21swapper/921:16:1031
169899913157,73cyclictest0-21swapper/921:16:0931
169399913116,75cyclictest0-21swapper/321:38:3123
169399913116,75cyclictest0-21swapper/321:38:3023
169349913128,85cyclictest0-21swapper/221:48:5312
169349913128,85cyclictest0-21swapper/221:48:5212
169349913127,81cyclictest0-21swapper/222:10:4812
169349913127,81cyclictest0-21swapper/222:10:4712
169349913124,65cyclictest0-21swapper/222:55:4112
169239913119,63cyclictest0-21swapper/000:00:100
170889913046,50cyclictest0-21swapper/2421:34:2217
170889913046,50cyclictest0-21swapper/2421:34:2217
169399913016,13cyclictest0-21swapper/321:51:5323
169399913016,13cyclictest0-21swapper/321:51:5223
169349913028,52cyclictest0-21swapper/222:47:0912
170889912929,63cyclictest0-21swapper/2400:00:1717
170889912923,64cyclictest0-21swapper/2400:15:1617
169509912964,43cyclictest0-21swapper/523:10:1527
169349912928,63cyclictest0-21swapper/223:21:0612
169349912924,104cyclictest0-21swapper/220:30:2412
169349912923,82cyclictest0-21swapper/223:15:4712
170889912828,59cyclictest0-21swapper/2419:45:2317
17088991280,73cyclictest0-21swapper/2423:50:1217
17057991280,82cyclictest0-21swapper/2023:15:2213
170119912847,52cyclictest0-21swapper/1223:57:054
169349912824,103cyclictest0-21swapper/222:26:3512
169349912824,103cyclictest0-21swapper/222:26:3412
169349912821,75cyclictest0-21swapper/222:32:4312
169349912821,75cyclictest0-21swapper/222:32:4212
17088991273,74cyclictest0-21swapper/2421:25:3217
170889912728,61cyclictest0-21swapper/2400:09:2217
170119912721,69cyclictest0-21swapper/1222:07:524
170119912721,69cyclictest0-21swapper/1222:07:524
169399912716,75cyclictest0-21swapper/322:25:0123
169399912716,75cyclictest0-21swapper/322:25:0023
170119912647,54cyclictest0-21swapper/1200:32:254
169349912623,61cyclictest0-21swapper/219:30:1412
170889912536,55cyclictest0-21swapper/2422:47:3617
170889912514,62cyclictest0-21swapper/2420:50:0217
170249912528,93cyclictest151rcu_preempt23:22:237
170119912544,54cyclictest0-21swapper/1200:04:074
170889912429,55cyclictest0-21swapper/2422:35:1917
170889912429,55cyclictest0-21swapper/2422:35:1817
170889912415,66cyclictest0-21swapper/2420:20:2217
17011991240,76cyclictest5627-21diskmemload22:15:214
17011991240,76cyclictest5627-21diskmemload22:15:214
169399912431,51cyclictest0-21swapper/300:17:4823
16923991240,75cyclictest0-21swapper/023:49:440
17088991234,71cyclictest0-21swapper/2421:50:2617
17088991234,71cyclictest0-21swapper/2421:50:2617
17024991234,74cyclictest0-21swapper/1519:50:137
170119912348,60cyclictest0-21swapper/1222:13:464
170119912348,60cyclictest0-21swapper/1222:13:454
170119912346,51cyclictest0-21swapper/1223:24:194
170119912320,58cyclictest0-21swapper/1222:41:004
170889912228,59cyclictest0-21swapper/2422:19:3217
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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