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2026-06-02 - 07:24
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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 Tue Jun 02, 2026 00:49:28)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
164462336328,6sleep260-21swapper/2619:05:1719
3273912910,283ptp4l0-21swapper/119:09:401
197689916816,147cyclictest0-21swapper/3019:40:2124
197689916117,111cyclictest0-21swapper/3019:19:4924
197689916116,100cyclictest0-21swapper/3023:20:0024
197689916016,105cyclictest0-21swapper/3021:46:2824
197689916016,105cyclictest0-21swapper/3021:46:2824
197689915916,84cyclictest0-21swapper/3021:17:3624
197689915916,84cyclictest0-21swapper/3021:17:3624
197039915339,30cyclictest0-21swapper/2122:21:3514
197689915116,105cyclictest0-21swapper/3022:34:3424
197039915097,29cyclictest143-21ksoftirqd/2121:41:1714
197039915097,29cyclictest143-21ksoftirqd/2121:41:1614
197039915039,90cyclictest0-21swapper/2123:11:1814
197039915039,80cyclictest0-21swapper/2122:49:2314
197609914923,36cyclictest0-21swapper/2900:11:1822
197609914723,96cyclictest0-21swapper/2922:10:4922
197609914723,91cyclictest0-21swapper/2921:34:1022
197609914723,88cyclictest0-21swapper/2921:19:1222
197609914723,88cyclictest0-21swapper/2921:19:1222
197609914621,98cyclictest0-21swapper/2920:34:3622
19768991456,110cyclictest151rcu_preempt21:34:4824
197039914531,113cyclictest0-21swapper/2122:15:1014
197039914530,113cyclictest0-21swapper/2100:33:3714
197689914416,83cyclictest0-21swapper/3021:27:4524
197689914416,83cyclictest0-21swapper/3021:27:4424
197039914439,57cyclictest0-21swapper/2122:32:4814
197039914429,113cyclictest0-21swapper/2121:19:0414
197039914429,113cyclictest0-21swapper/2121:19:0414
197039914330,88cyclictest0-21swapper/2100:19:4214
197689914219,84cyclictest0-21swapper/3023:32:1624
19683991420,87cyclictest0-21swapper/1800:39:5910
197269913950,58cyclictest0-21swapper/2421:28:3117
197269913950,58cyclictest0-21swapper/2421:28:3117
197689913871,47cyclictest197-21ksoftirqd/3023:44:0324
197609913823,68cyclictest0-21swapper/2923:44:0222
197689913716,78cyclictest0-21swapper/3022:37:3324
197269913744,63cyclictest0-21swapper/2420:15:1817
197269913629,65cyclictest0-21swapper/2423:37:3517
197609913523,71cyclictest0-21swapper/2922:32:5622
197269913550,58cyclictest0-21swapper/2421:49:5917
197269913550,58cyclictest0-21swapper/2421:49:5817
197269913430,73cyclictest0-21swapper/2420:41:2917
197269913430,73cyclictest0-21swapper/2420:41:2917
197269913428,69cyclictest0-21swapper/2423:26:0417
197269913426,73cyclictest0-21swapper/2400:03:4817
19760991330,86cyclictest0-21swapper/2921:14:5522
19760991330,86cyclictest0-21swapper/2921:14:5422
197539913318,57cyclictest151rcu_preempt23:35:1821
197269913331,74cyclictest0-21swapper/2423:19:4217
197269913330,72cyclictest0-21swapper/2422:13:4017
197269913329,72cyclictest0-21swapper/2419:35:2817
197269913329,70cyclictest0-21swapper/2400:38:4817
197269913328,67cyclictest0-21swapper/2423:54:5917
197269913327,64cyclictest0-21swapper/2419:32:3717
19670991330,84cyclictest0-21swapper/1622:01:488
197269913229,69cyclictest0-21swapper/2423:14:2117
197269913227,70cyclictest0-21swapper/2422:20:2217
197269913130,70cyclictest0-21swapper/2422:48:1317
197269913129,71cyclictest0-21swapper/2421:20:1617
197269913129,71cyclictest0-21swapper/2421:20:1617
197269913129,69cyclictest0-21swapper/2421:31:1217
197269913129,66cyclictest0-21swapper/2420:52:1117
197269913129,66cyclictest0-21swapper/2420:52:1017
197269913128,69cyclictest0-21swapper/2421:52:0317
197269913127,69cyclictest0-21swapper/2422:15:5017
197269913127,69cyclictest0-21swapper/2421:57:5517
196839913149,59cyclictest0-21swapper/1822:32:4610
197269913032,75cyclictest0-21swapper/2421:37:0917
197269913030,76cyclictest0-21swapper/2423:44:4917
197269913030,71cyclictest0-21swapper/2421:12:0217
197269913030,71cyclictest0-21swapper/2421:12:0217
197269913029,74cyclictest0-21swapper/2400:34:3117
197269913029,69cyclictest0-21swapper/2422:42:5317
197269913029,66cyclictest0-21swapper/2420:25:1417
196839913046,54cyclictest0-21swapper/1823:25:0910
196839913045,58cyclictest0-21swapper/1821:17:2410
196839913045,58cyclictest0-21swapper/1821:17:2410
196709913020,99cyclictest0-21swapper/1622:38:578
197689912916,73cyclictest0-21swapper/3022:26:3224
197269912927,67cyclictest0-21swapper/2423:20:1317
196839912924,60cyclictest0-21swapper/1820:06:1910
197759912837,60cyclictest0-21swapper/3100:00:3825
197759912826,68cyclictest0-21swapper/3122:22:1825
197759912826,66cyclictest0-21swapper/3123:39:4825
197329912815,70cyclictest13101-21timerwakeupswit00:25:2418
197269912828,66cyclictest0-21swapper/2400:15:5017
196839912854,60cyclictest0-21swapper/1823:33:1010
196839912844,54cyclictest0-21swapper/1820:37:5210
196839912844,54cyclictest0-21swapper/1820:37:5210
196839912844,52cyclictest0-21swapper/1820:44:1710
196839912844,52cyclictest0-21swapper/1820:44:1710
196839912821,68cyclictest0-21swapper/1822:06:3610
197759912729,65cyclictest0-21swapper/3100:10:1525
197759912728,70cyclictest0-21swapper/3123:23:4625
197759912728,66cyclictest0-21swapper/3100:20:2525
197759912728,62cyclictest0-21swapper/3121:57:4225
197759912723,64cyclictest0-21swapper/3122:11:0325
197689912716,84cyclictest0-21swapper/3000:32:4224
197539912742,27cyclictest151rcu_preempt00:23:5221
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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