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2026-05-20 - 07:36
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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 May 20, 2026 00:49:11)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
330891260252,6phc2sys0-21swapper/219:06:0512
102829921028,123cyclictest0-21swapper/2219:50:1815
87882199191,6sleep10-21swapper/119:06:251
102259917034,119cyclictest0-21swapper/822:32:5130
102259917034,119cyclictest0-21swapper/822:32:5030
102259916630,133cyclictest0-21swapper/819:45:1230
102259916428,87cyclictest0-21swapper/823:09:1230
102259916428,87cyclictest0-21swapper/823:09:1130
102259916225,132cyclictest0-21swapper/823:50:3730
102749915938,68cyclictest151rcu_preempt23:45:1213
102259915737,119cyclictest64-21ksoftirqd/800:34:4430
1027799155153,1cyclictest143-21ksoftirqd/2121:12:1814
10177991538,117cyclictest151rcu_preempt23:16:040
102259915031,117cyclictest0-21swapper/819:55:1230
10282991480,83cyclictest0-21swapper/2223:33:4115
102259914832,92cyclictest0-21swapper/822:06:0830
102259914832,92cyclictest0-21swapper/822:06:0830
101829914720,25cyclictest0-21swapper/121:55:321
101829914720,25cyclictest0-21swapper/121:55:311
101829914620,117cyclictest0-21swapper/121:34:091
102259914531,61cyclictest0-21swapper/800:05:2030
101829914420,84cyclictest0-21swapper/121:27:441
101829914420,83cyclictest0-21swapper/121:23:271
101829914420,82cyclictest0-21swapper/123:05:321
101829914420,82cyclictest0-21swapper/123:05:321
101829914420,75cyclictest0-21swapper/100:39:041
101829914420,111cyclictest0-21swapper/122:57:461
101829914420,111cyclictest0-21swapper/122:57:461
101829914419,109cyclictest0-21swapper/123:56:371
10277991430,87cyclictest0-21swapper/2122:08:4114
10277991430,87cyclictest0-21swapper/2122:08:4014
101829914320,76cyclictest0-21swapper/121:53:231
101829914320,76cyclictest0-21swapper/121:53:231
102779914159,24cyclictest0-21swapper/2121:16:1814
102349913951,57cyclictest0-21swapper/921:54:0331
102349913951,57cyclictest0-21swapper/921:54:0331
102349913852,57cyclictest0-21swapper/923:04:3631
102349913749,56cyclictest0-21swapper/920:35:3031
102349913747,60cyclictest0-21swapper/921:40:1031
102349913729,70cyclictest0-21swapper/922:57:3931
102349913729,70cyclictest0-21swapper/922:57:3931
10182991370,76cyclictest0-21swapper/122:35:051
10182991370,76cyclictest0-21swapper/122:35:051
102829913631,48cyclictest0-21swapper/2223:00:0115
10277991360,83cyclictest0-21swapper/2100:34:3114
102349913651,55cyclictest0-21swapper/900:02:5231
102349913650,55cyclictest0-21swapper/920:30:1231
102349913644,57cyclictest0-21swapper/922:30:2431
102349913644,57cyclictest0-21swapper/922:30:2431
101859913626,66cyclictest0-21swapper/220:02:3212
102349913552,57cyclictest0-21swapper/923:27:3531
102349913527,64cyclictest0-21swapper/923:56:2731
102779913416,116cyclictest151rcu_preempt23:47:2914
10274991340,80cyclictest0-21swapper/2021:25:1113
102349913445,57cyclictest0-21swapper/919:50:0231
102349913443,59cyclictest0-21swapper/921:25:4331
102349913442,57cyclictest0-21swapper/919:33:5031
101779913417,84cyclictest1338-21snmpd22:21:050
101779913417,84cyclictest1338-21snmpd22:21:050
10305991331,83cyclictest0-21swapper/2723:34:5020
102999913329,103cyclictest0-21swapper/2623:45:1619
102349913350,58cyclictest0-21swapper/900:09:1631
102349913328,69cyclictest0-21swapper/921:15:0931
102259913332,76cyclictest0-21swapper/823:33:5930
102259913330,58cyclictest0-21swapper/800:25:1230
103059913243,58cyclictest0-21swapper/2700:20:1620
102999913231,51cyclictest0-21swapper/2622:34:5819
102999913231,51cyclictest0-21swapper/2622:34:5819
102999913230,60cyclictest0-21swapper/2623:44:4819
102829913250,58cyclictest0-21swapper/2200:16:2515
102349913246,57cyclictest0-21swapper/923:30:1531
102349913229,67cyclictest0-21swapper/922:35:4531
102349913229,67cyclictest0-21swapper/922:35:4531
102349913228,68cyclictest0-21swapper/921:56:1231
102349913228,68cyclictest0-21swapper/921:56:1231
102349913227,63cyclictest0-21swapper/923:13:0931
102349913226,63cyclictest0-21swapper/923:15:1831
101829913222,110cyclictest22-21ksoftirqd/122:10:291
101829913222,110cyclictest22-21ksoftirqd/122:10:291
103059913145,55cyclictest0-21swapper/2720:50:1320
102829913130,62cyclictest0-21swapper/2223:48:0715
102349913132,69cyclictest0-21swapper/900:38:4031
102349913131,73cyclictest0-21swapper/921:33:4531
102349913129,67cyclictest0-21swapper/922:03:4131
102349913129,67cyclictest0-21swapper/922:03:4131
102349913127,66cyclictest0-21swapper/923:08:2131
102349913127,66cyclictest0-21swapper/923:08:2131
102349913126,62cyclictest0-21swapper/900:15:0931
102349913125,65cyclictest0-21swapper/923:22:4731
101859913127,63cyclictest0-21swapper/221:10:3912
103059913048,54cyclictest0-21swapper/2722:10:2320
103059913048,54cyclictest0-21swapper/2722:10:2320
10305991300,76cyclictest0-21swapper/2700:30:2420
102349913047,64cyclictest0-21swapper/919:45:1631
102349913039,64cyclictest0-21swapper/922:26:3931
102349913039,64cyclictest0-21swapper/922:26:3931
102349913032,75cyclictest0-21swapper/921:24:0731
102349913032,64cyclictest0-21swapper/922:16:3031
102349913032,64cyclictest0-21swapper/922:16:3031
102349913030,76cyclictest0-21swapper/921:46:1831
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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