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2026-07-01 - 03:38
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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 Wed Jul 01, 2026 00:49:51)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3273913140,300ptp4l0-21swapper/119:05:121
2655499299101,1cyclictest151rcu_preempt21:10:193
265319922528,1cyclictest151rcu_preempt21:11:0930
26506991790,66cyclictest0-21swapper/522:06:0527
265069916346,91cyclictest0-21swapper/523:13:5327
266529915068,81cyclictest161-21ksoftirqd/2421:11:2617
330891144137,4phc2sys0-21swapper/219:05:1912
265069914432,92cyclictest0-21swapper/522:28:4727
265069914126,108cyclictest0-21swapper/523:34:0027
265069914126,108cyclictest0-21swapper/523:34:0027
26561991390,85cyclictest0-21swapper/1222:34:354
265069913952,59cyclictest0-21swapper/523:27:5427
265069913952,59cyclictest0-21swapper/523:27:5427
265069913923,75cyclictest0-21swapper/520:25:2327
265789913832,105cyclictest0-21swapper/1421:22:406
265069913854,52cyclictest0-21swapper/522:21:0827
264789913835,101cyclictest0-21swapper/121:05:231
26695991370,82cyclictest0-21swapper/2921:34:4122
266459913730,66cyclictest0-21swapper/2321:39:5516
265069913745,61cyclictest0-21swapper/523:57:1527
265069913745,61cyclictest0-21swapper/523:57:1527
26645991360,81cyclictest0-21swapper/2323:50:2016
26645991360,81cyclictest0-21swapper/2323:50:2016
265069913654,58cyclictest0-21swapper/521:51:5527
265069913646,60cyclictest0-21swapper/500:02:5227
265069913646,60cyclictest0-21swapper/500:02:5227
265069913642,62cyclictest0-21swapper/500:29:3527
265069913642,62cyclictest0-21swapper/500:29:3527
26506991360,84cyclictest0-21swapper/500:19:2627
266459913529,66cyclictest0-21swapper/2323:33:4616
266459913529,66cyclictest0-21swapper/2323:33:4616
266459913529,64cyclictest0-21swapper/2321:54:2116
266459913529,62cyclictest0-21swapper/2323:42:0316
266459913529,62cyclictest0-21swapper/2323:42:0316
266459913528,65cyclictest0-21swapper/2321:41:3116
266459913528,62cyclictest0-21swapper/2321:25:1416
265789913529,98cyclictest0-21swapper/1421:49:566
265069913557,60cyclictest0-21swapper/500:22:5427
265069913557,60cyclictest0-21swapper/500:22:5427
265069913529,70cyclictest0-21swapper/519:26:5227
265069913528,67cyclictest0-21swapper/500:32:4827
265069913528,63cyclictest0-21swapper/523:51:3827
265069913528,63cyclictest0-21swapper/523:51:3827
265069913526,66cyclictest0-21swapper/522:10:3727
26484991351,83cyclictest0-21swapper/222:51:1212
26671991340,73cyclictest0-21swapper/2623:33:4919
26671991340,73cyclictest0-21swapper/2623:33:4919
266459913429,62cyclictest0-21swapper/2300:35:1416
26645991341,79cyclictest0-21swapper/2320:11:4516
265069913454,59cyclictest0-21swapper/500:06:4727
265069913454,59cyclictest0-21swapper/500:06:4727
265069913448,61cyclictest0-21swapper/521:36:4227
265069913445,61cyclictest0-21swapper/519:59:5127
265069913429,68cyclictest0-21swapper/500:12:2927
265069913429,68cyclictest0-21swapper/500:12:2927
265069913428,69cyclictest0-21swapper/521:05:2427
2647899134131,2cyclictest151rcu_preempt23:36:191
2647899134131,2cyclictest151rcu_preempt23:36:191
26710991330,78cyclictest0-21swapper/3121:12:1625
266459913331,63cyclictest0-21swapper/2319:53:3516
266459913329,65cyclictest0-21swapper/2300:08:2416
266459913329,65cyclictest0-21swapper/2300:08:2416
266459913327,64cyclictest0-21swapper/2322:40:1816
26645991330,77cyclictest0-21swapper/2320:16:0116
265069913347,57cyclictest0-21swapper/519:36:1127
265069913344,57cyclictest0-21swapper/522:36:1727
265069913329,68cyclictest0-21swapper/520:00:4527
265069913328,70cyclictest0-21swapper/519:10:1927
26484991330,83cyclictest0-21swapper/221:32:1912
266459913228,64cyclictest0-21swapper/2323:55:0916
266459913228,64cyclictest0-21swapper/2323:55:0916
266459913228,62cyclictest0-21swapper/2321:59:1016
266459913228,62cyclictest0-21swapper/2321:59:1016
265789913230,54cyclictest0-21swapper/1421:00:136
265789913226,84cyclictest0-21swapper/1422:11:176
265069913251,69cyclictest0-21swapper/521:43:5427
265069913235,61cyclictest0-21swapper/523:15:5027
265069913235,61cyclictest0-21swapper/523:15:5027
265069913230,74cyclictest0-21swapper/520:50:2727
265069913230,73cyclictest0-21swapper/522:52:0327
265069913229,69cyclictest0-21swapper/522:03:1827
265069913229,68cyclictest0-21swapper/523:46:5027
265069913229,68cyclictest0-21swapper/523:46:5027
265069913229,66cyclictest0-21swapper/521:25:1127
265069913228,71cyclictest0-21swapper/523:36:5827
265069913228,71cyclictest0-21swapper/523:36:5827
265069913228,71cyclictest0-21swapper/522:41:1627
265069913227,70cyclictest0-21swapper/522:33:0427
265069913227,68cyclictest0-21swapper/523:41:2927
265069913227,68cyclictest0-21swapper/523:41:2927
265069913227,67cyclictest0-21swapper/520:34:3627
26484991322,78cyclictest0-21swapper/200:26:2012
26484991322,78cyclictest0-21swapper/200:26:2012
26695991310,87cyclictest0-21swapper/2920:25:1222
266459913146,54cyclictest0-21swapper/2322:31:4616
266459913129,66cyclictest0-21swapper/2323:27:2016
266459913129,66cyclictest0-21swapper/2323:27:2016
266459913128,62cyclictest0-21swapper/2320:36:5216
266459913127,68cyclictest0-21swapper/2323:20:2416
266459913127,68cyclictest0-21swapper/2323:20:2316
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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