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2026-08-10 - 10:36
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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 Mon Aug 10, 2026 00:49:14)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3273912590,251ptp4l0-21swapper/119:07:131
266869917639,127cyclictest0-21swapper/521:35:2827
266869917639,127cyclictest0-21swapper/521:35:2827
267079917227,106cyclictest0-21swapper/819:45:2130
266869917039,116cyclictest0-21swapper/523:54:0427
266869917033,136cyclictest0-21swapper/523:10:0327
266869917032,137cyclictest0-21swapper/523:59:5827
266869916731,94cyclictest0-21swapper/522:45:1327
266869916631,85cyclictest0-21swapper/521:21:3427
266869916631,85cyclictest0-21swapper/521:21:3327
266679916623,83cyclictest0-21swapper/100:10:551
330891164159,3phc2sys0-21swapper/219:05:2512
267409916224,94cyclictest0-21swapper/1320:25:395
266869915533,66cyclictest0-21swapper/522:42:4927
266869915518,108cyclictest0-21swapper/520:35:2427
26672991480,88cyclictest0-21swapper/220:53:1212
267409914719,100cyclictest0-21swapper/1321:28:025
267409914719,100cyclictest0-21swapper/1321:28:015
26740991460,88cyclictest0-21swapper/1321:15:185
26740991460,88cyclictest0-21swapper/1321:15:185
26740991450,86cyclictest0-21swapper/1323:32:075
266629914447,58cyclictest0-21swapper/021:50:090
266629914447,58cyclictest0-21swapper/021:50:080
267079914354,54cyclictest0-21swapper/822:30:2130
267079914354,54cyclictest0-21swapper/822:30:2030
266629914361,54cyclictest0-21swapper/020:37:110
26740991420,84cyclictest0-21swapper/1323:17:095
26686991420,83cyclictest0-21swapper/522:10:4527
26686991420,83cyclictest0-21swapper/522:10:4427
266629914241,69cyclictest0-21swapper/023:00:230
26740991410,84cyclictest0-21swapper/1321:35:355
26740991410,84cyclictest0-21swapper/1321:35:355
26740991410,83cyclictest0-21swapper/1322:02:525
26740991410,83cyclictest0-21swapper/1322:02:525
267079914130,68cyclictest0-21swapper/819:32:2630
266629914153,61cyclictest0-21swapper/023:12:560
267409914047,59cyclictest0-21swapper/1320:59:165
267409914046,58cyclictest0-21swapper/1320:45:225
267409914028,69cyclictest0-21swapper/1322:14:375
267409914028,69cyclictest0-21swapper/1322:14:365
267079914050,64cyclictest0-21swapper/821:03:1430
267079914028,66cyclictest0-21swapper/821:11:4830
267409913931,74cyclictest0-21swapper/1300:12:125
267409913926,83cyclictest94-21ksoftirqd/1321:40:165
267409913926,83cyclictest94-21ksoftirqd/1321:40:155
267079913953,58cyclictest0-21swapper/820:28:1030
26686991390,84cyclictest0-21swapper/523:47:2827
267409913851,54cyclictest0-21swapper/1323:14:285
267409913848,58cyclictest0-21swapper/1322:58:275
267409913831,71cyclictest0-21swapper/1322:33:525
267409913831,71cyclictest0-21swapper/1322:33:525
26740991380,82cyclictest0-21swapper/1300:01:315
267149913828,68cyclictest0-21swapper/921:28:3531
267149913828,68cyclictest0-21swapper/921:28:3531
267079913854,60cyclictest0-21swapper/800:11:0730
266629913843,55cyclictest0-21swapper/021:56:340
266629913843,55cyclictest0-21swapper/021:56:340
266629913835,67cyclictest0-21swapper/020:25:140
267409913752,61cyclictest0-21swapper/1321:59:075
267409913752,61cyclictest0-21swapper/1321:59:065
26740991370,86cyclictest0-21swapper/1322:19:265
26740991370,85cyclictest0-21swapper/1323:25:415
26740991370,82cyclictest0-21swapper/1323:53:295
26740991370,82cyclictest0-21swapper/1321:50:025
26740991370,81cyclictest0-21swapper/1323:05:235
26740991370,81cyclictest0-21swapper/1322:05:325
26740991370,81cyclictest0-21swapper/1322:05:325
266629913748,53cyclictest0-21swapper/019:17:320
266629913731,64cyclictest0-21swapper/020:09:410
267409913656,65cyclictest0-21swapper/1319:35:215
267409913625,70cyclictest0-21swapper/1322:44:335
267409913624,77cyclictest0-21swapper/1300:18:385
26740991360,84cyclictest0-21swapper/1323:47:045
26714991361,83cyclictest0-21swapper/920:03:0531
267079913646,57cyclictest0-21swapper/821:30:2930
267079913646,57cyclictest0-21swapper/821:30:2930
267409913531,69cyclictest0-21swapper/1322:45:245
267409913528,67cyclictest0-21swapper/1321:32:245
267409913528,67cyclictest0-21swapper/1321:32:245
26740991350,84cyclictest0-21swapper/1319:31:065
26740991350,80cyclictest0-21swapper/1323:57:475
26740991350,80cyclictest0-21swapper/1323:20:225
26740991350,79cyclictest0-21swapper/1320:15:275
267079913541,59cyclictest0-21swapper/823:44:5430
267079913529,66cyclictest0-21swapper/821:20:2030
267079913529,66cyclictest0-21swapper/821:20:1930
267079913529,66cyclictest0-21swapper/820:50:2530
267079913529,64cyclictest0-21swapper/822:17:0030
267079913529,63cyclictest0-21swapper/819:20:1230
266629913547,58cyclictest0-21swapper/021:11:460
266629913530,65cyclictest0-21swapper/023:25:180
266629913527,57cyclictest0-21swapper/022:20:200
266629913527,57cyclictest0-21swapper/022:20:190
267409913430,64cyclictest0-21swapper/1319:24:415
267409913428,65cyclictest0-21swapper/1321:47:225
267409913428,63cyclictest0-21swapper/1321:21:105
267409913428,63cyclictest0-21swapper/1321:21:095
26740991340,83cyclictest0-21swapper/1323:44:245
26740991340,80cyclictest0-21swapper/1300:36:175
267079913430,64cyclictest0-21swapper/820:40:0130
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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