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2026-06-05 - 03:16
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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 Fri Jun 05, 2026 00:49:39)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
383399364167,1cyclictest151rcu_preempt00:40:0112
398299225140,3cyclictest1841rcuc/2823:33:4221
330891218210,6phc2sys0-21swapper/219:09:2412
38339919525,116cyclictest0-21swapper/223:21:4312
3273911910,181ptp4l0-21swapper/119:08:291
38369918124,126cyclictest0-21swapper/323:55:2423
38369918124,113cyclictest0-21swapper/321:25:1323
38369918124,113cyclictest0-21swapper/321:25:1323
38369917324,94cyclictest0-21swapper/300:32:1723
38339916351,83cyclictest0-21swapper/222:48:3512
38369916224,83cyclictest0-21swapper/321:46:3623
38369916224,83cyclictest0-21swapper/321:46:3623
23172161154,6sleep230-21swapper/2319:06:2216
384499157156,1cyclictest151rcu_preempt22:46:0827
38339914935,105cyclictest0-21swapper/220:58:1112
38589914724,45cyclictest0-21swapper/800:06:3930
38369914720,94cyclictest0-21swapper/322:00:1423
38369914720,94cyclictest0-21swapper/322:00:1423
38339914734,109cyclictest0-21swapper/200:21:0212
38589914524,43cyclictest0-21swapper/823:25:5730
38369914524,77cyclictest0-21swapper/322:35:1423
38369914523,80cyclictest0-21swapper/323:02:2023
38299914446,21cyclictest0-21swapper/119:15:241
38589914225,38cyclictest0-21swapper/823:35:0030
3925991405,111cyclictest0-21swapper/2023:45:5213
38589914054,63cyclictest0-21swapper/800:34:5030
38589914050,66cyclictest0-21swapper/821:59:5030
38589914050,66cyclictest0-21swapper/821:59:5030
3824991400,85cyclictest0-21swapper/020:45:240
39759913950,61cyclictest0-21swapper/2700:09:4220
39759913923,88cyclictest0-21swapper/2722:35:2420
3975991390,78cyclictest0-21swapper/2719:25:2220
38589913948,57cyclictest0-21swapper/821:20:1730
38589913945,63cyclictest0-21swapper/822:36:4230
38589913846,71cyclictest0-21swapper/822:21:5930
38589913846,71cyclictest0-21swapper/822:21:5930
38589913828,65cyclictest0-21swapper/822:00:5730
38589913828,65cyclictest0-21swapper/822:00:5730
38369913817,93cyclictest0-21swapper/323:39:3523
3829991380,87cyclictest0-21swapper/119:25:161
39759913751,60cyclictest0-21swapper/2723:15:1120
38589913744,59cyclictest0-21swapper/822:58:0630
38589913726,34cyclictest0-21swapper/822:30:1930
38589913726,34cyclictest0-21swapper/822:30:1930
38589913645,57cyclictest0-21swapper/822:05:1230
38589913645,57cyclictest0-21swapper/822:05:1230
38369913671,46cyclictest0-21swapper/322:45:2323
38369913617,87cyclictest0-21swapper/323:28:0923
38249913641,62cyclictest0-21swapper/022:51:330
38249913641,62cyclictest0-21swapper/022:51:330
38589913539,70cyclictest0-21swapper/820:47:4230
38589913539,60cyclictest0-21swapper/820:50:0230
38589913528,70cyclictest0-21swapper/823:16:0430
38589913527,71cyclictest0-21swapper/821:47:1630
38589913527,71cyclictest0-21swapper/821:47:1630
38369913545,59cyclictest0-21swapper/320:35:3123
3824991351,83cyclictest0-21swapper/023:10:160
39759913443,64cyclictest0-21swapper/2723:23:4420
39759913428,69cyclictest0-21swapper/2723:42:5820
39759913428,64cyclictest0-21swapper/2722:31:2120
39759913428,64cyclictest0-21swapper/2722:31:2120
38589913448,61cyclictest0-21swapper/819:50:3130
38589913445,63cyclictest0-21swapper/823:03:2630
38589913444,63cyclictest0-21swapper/822:10:0330
38589913444,63cyclictest0-21swapper/822:10:0330
38589913429,75cyclictest0-21swapper/823:05:4930
38589913425,64cyclictest0-21swapper/800:11:1930
38589913350,64cyclictest0-21swapper/823:54:4330
38589913344,62cyclictest0-21swapper/823:36:0130
38589913328,73cyclictest0-21swapper/821:51:0030
38589913328,73cyclictest0-21swapper/821:51:0030
38589913328,70cyclictest0-21swapper/820:35:2530
38589913327,66cyclictest0-21swapper/821:27:4630
38589913327,66cyclictest0-21swapper/821:27:4630
38299913347,40cyclictest0-21swapper/100:11:391
39759913227,70cyclictest0-21swapper/2723:48:5120
39759913226,69cyclictest0-21swapper/2720:10:4820
38589913242,62cyclictest0-21swapper/822:54:5330
38589913242,62cyclictest0-21swapper/822:54:5330
38589913228,67cyclictest0-21swapper/800:35:0430
39759913150,60cyclictest0-21swapper/2723:25:1920
39759913128,67cyclictest0-21swapper/2700:35:2120
39759913118,67cyclictest0-21swapper/2723:32:1720
38589913144,58cyclictest0-21swapper/820:25:1530
38589913131,78cyclictest0-21swapper/819:40:2230
38589913130,67cyclictest0-21swapper/823:14:4030
38589913128,68cyclictest0-21swapper/820:40:1530
38249913127,63cyclictest0-21swapper/000:01:030
38249913126,63cyclictest0-21swapper/022:27:300
38249913126,63cyclictest0-21swapper/022:27:300
39759913054,66cyclictest0-21swapper/2721:46:2820
39759913054,66cyclictest0-21swapper/2721:46:2820
39759913030,70cyclictest0-21swapper/2721:30:5820
39759913028,64cyclictest0-21swapper/2723:11:5920
39759913026,68cyclictest0-21swapper/2720:25:1420
39759913026,67cyclictest0-21swapper/2721:37:2220
39759913026,67cyclictest0-21swapper/2721:37:2220
3938991300,77cyclictest0-21swapper/2222:15:1415
3938991300,77cyclictest0-21swapper/2222:15:1415
38589913031,76cyclictest0-21swapper/821:11:1230
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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