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2026-03-19 - 13:54
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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 Thu Mar 19, 2026 00:49:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3273912440,236ptp4l0-21swapper/119:08:561
9294991808,129cyclictest0-21swapper/122:56:131
9444991785,70cyclictest0-21swapper/2322:25:0216
9444991785,70cyclictest0-21swapper/2322:25:0116
94719917026,143cyclictest0-21swapper/2720:35:0020
94719916926,103cyclictest0-21swapper/2723:10:0120
94889916811,143cyclictest0-21swapper/2922:53:2822
94889916610,134cyclictest0-21swapper/2921:46:3922
94889916610,134cyclictest0-21swapper/2921:46:3922
94889916410,143cyclictest0-21swapper/2900:05:3722
94889916410,119cyclictest0-21swapper/2921:05:1822
94889916410,119cyclictest0-21swapper/2921:05:1722
330891155147,6phc2sys0-21swapper/219:09:5912
94889915410,117cyclictest0-21swapper/2922:35:1722
94889915410,117cyclictest0-21swapper/2922:35:1722
94889915210,98cyclictest30275-21diskmemload23:53:5022
9312991520,87cyclictest0-21swapper/423:15:1726
39412152144,6sleep80-21swapper/819:05:1230
94889915110,97cyclictest0-21swapper/2922:46:1822
9294991501,89cyclictest0-21swapper/100:08:531
94889914911,35cyclictest0-21swapper/2921:31:4222
94889914911,35cyclictest0-21swapper/2921:31:4122
93129914731,74cyclictest0-21swapper/421:15:0226
9294991470,90cyclictest0-21swapper/120:58:531
9294991460,89cyclictest0-21swapper/119:52:551
9294991450,88cyclictest0-21swapper/123:17:351
9294991441,87cyclictest0-21swapper/121:48:031
9294991441,87cyclictest0-21swapper/121:48:021
9294991440,88cyclictest0-21swapper/120:40:141
94889914211,78cyclictest0-21swapper/2923:55:1622
9294991420,84cyclictest0-21swapper/122:15:361
9294991420,84cyclictest0-21swapper/122:15:361
9488991410,86cyclictest0-21swapper/2921:16:4322
93689914143,61cyclictest0-21swapper/1223:43:274
9294991411,83cyclictest0-21swapper/122:46:031
9294991410,84cyclictest0-21swapper/123:22:551
93809913926,74cyclictest0-21swapper/1400:18:116
93429913949,57cyclictest0-21swapper/823:20:1130
93429913941,61cyclictest0-21swapper/823:42:0630
9294991391,85cyclictest0-21swapper/122:52:271
9294991391,81cyclictest0-21swapper/121:25:231
9294991391,81cyclictest0-21swapper/121:25:231
93429913838,60cyclictest0-21swapper/823:30:5230
9294991381,81cyclictest0-21swapper/119:56:391
94659913738,98cyclictest0-21swapper/2622:05:1919
94659913738,98cyclictest0-21swapper/2622:05:1819
93809913732,71cyclictest0-21swapper/1400:28:536
93429913729,67cyclictest0-21swapper/800:03:4530
9294991370,83cyclictest0-21swapper/123:03:421
94149913649,57cyclictest0-21swapper/1923:11:2911
93429913644,57cyclictest0-21swapper/821:37:0130
93429913644,57cyclictest0-21swapper/821:37:0130
93129913678,58cyclictest40-21ksoftirqd/400:33:5126
9294991360,84cyclictest0-21swapper/121:38:101
9294991360,84cyclictest0-21swapper/121:38:101
9294991360,81cyclictest0-21swapper/122:27:201
9294991360,81cyclictest0-21swapper/122:27:201
94149913548,52cyclictest0-21swapper/1923:41:2311
94149913541,62cyclictest0-21swapper/1921:14:5811
93429913529,69cyclictest0-21swapper/819:20:1430
9294991350,81cyclictest0-21swapper/122:12:221
9294991350,81cyclictest0-21swapper/122:12:221
9294991350,80cyclictest0-21swapper/100:01:561
94659913439,94cyclictest27225-21taskset22:11:2719
94659913439,94cyclictest27225-21taskset22:11:2719
93809913442,57cyclictest0-21swapper/1400:00:336
93429913456,63cyclictest0-21swapper/821:12:4630
93429913448,68cyclictest0-21swapper/819:35:1630
93429913430,74cyclictest0-21swapper/822:14:4730
93429913430,74cyclictest0-21swapper/822:14:4630
93429913430,69cyclictest0-21swapper/800:09:0430
93429913426,71cyclictest0-21swapper/820:55:2130
92949913446,54cyclictest0-21swapper/123:48:351
9294991340,81cyclictest0-21swapper/100:15:181
9294991340,80cyclictest0-21swapper/123:13:181
9294991340,78cyclictest0-21swapper/123:38:571
9294991340,76cyclictest0-21swapper/119:10:101
9431991330,78cyclictest0-21swapper/2123:30:4414
94149913348,53cyclictest0-21swapper/1923:58:3011
94149913327,60cyclictest0-21swapper/1920:05:3011
93809913345,58cyclictest0-21swapper/1423:06:036
93429913349,52cyclictest0-21swapper/821:19:5430
93429913342,59cyclictest0-21swapper/822:09:0730
93429913342,59cyclictest0-21swapper/822:09:0630
93429913329,69cyclictest0-21swapper/800:18:2630
93429913326,61cyclictest0-21swapper/800:10:1230
92949913326,64cyclictest0-21swapper/121:56:531
92949913326,64cyclictest0-21swapper/121:56:521
9294991330,84cyclictest0-21swapper/100:21:431
9294991330,79cyclictest0-21swapper/121:10:061
382421330,2sleep160-21swapper/1623:46:578
94149913248,63cyclictest0-21swapper/1920:18:1811
93809913229,73cyclictest0-21swapper/1421:39:276
93809913229,73cyclictest0-21swapper/1421:39:276
93429913230,72cyclictest0-21swapper/800:32:5230
93429913228,70cyclictest0-21swapper/820:35:1530
93429913227,65cyclictest0-21swapper/821:54:2830
93429913227,65cyclictest0-21swapper/821:54:2730
93429913221,71cyclictest0-21swapper/823:02:1730
92949913231,66cyclictest0-21swapper/123:40:021
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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