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2026-05-14 - 05:02
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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 May 14, 2026 00:49:21)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
124749925153,2cyclictest151rcu_preempt21:37:554
124749925153,2cyclictest151rcu_preempt21:37:554
125209924840,7cyclictest125-21ksoftirqd/1822:35:2310
92902224214,7sleep290-21swapper/2919:05:1822
1245999179112,38cyclictest0-21swapper/1021:30:202
1245999179112,38cyclictest0-21swapper/1021:30:202
3273911710,163ptp4l0-21swapper/119:09:191
123989917018,121cyclictest151rcu_preempt21:55:200
123989915753,50cyclictest13-21ksoftirqd/022:15:210
330891152144,6phc2sys0-21swapper/219:07:3612
12398991490,86cyclictest0-21swapper/022:35:240
12594991475,137cyclictest0-21swapper/2823:10:4021
12610991420,83cyclictest0-21swapper/3022:20:0524
125799914120,120cyclictest0-21swapper/2622:00:1419
124249914126,85cyclictest151rcu_preempt21:25:4127
124249914126,85cyclictest151rcu_preempt21:25:4127
12594991351,82cyclictest0-21swapper/2800:32:0721
123989913519,72cyclictest0-21swapper/023:21:220
123989913434,46cyclictest0-21swapper/023:37:080
12398991330,78cyclictest0-21swapper/019:57:420
12594991320,78cyclictest0-21swapper/2820:57:3321
12594991320,78cyclictest0-21swapper/2820:57:3221
123989913246,57cyclictest0-21swapper/021:32:360
123989913246,57cyclictest0-21swapper/021:32:350
12579991300,83cyclictest0-21swapper/2622:10:2319
123989913048,61cyclictest0-21swapper/021:40:230
123989913048,61cyclictest0-21swapper/021:40:230
123989913046,56cyclictest0-21swapper/022:57:340
123989913026,65cyclictest0-21swapper/022:28:390
124249912952,24cyclictest0-21swapper/519:56:5927
123989912953,56cyclictest0-21swapper/000:30:020
123989912944,67cyclictest0-21swapper/021:37:100
123989912944,67cyclictest0-21swapper/021:37:100
123989912928,69cyclictest0-21swapper/022:33:470
123989912927,73cyclictest0-21swapper/022:54:550
123989912926,70cyclictest0-21swapper/021:48:370
126109912813,80cyclictest0-21swapper/3022:41:2824
123989912828,66cyclictest0-21swapper/023:31:330
123989912827,72cyclictest0-21swapper/020:40:310
123989912827,72cyclictest0-21swapper/020:40:300
123989912827,66cyclictest0-21swapper/023:02:220
123989912827,64cyclictest0-21swapper/023:57:430
123989912814,71cyclictest0-21swapper/022:01:310
125949912736,59cyclictest0-21swapper/2800:10:1421
123989912751,65cyclictest0-21swapper/020:20:120
123989912751,65cyclictest0-21swapper/020:20:110
123989912738,57cyclictest0-21swapper/021:18:410
123989912738,57cyclictest0-21swapper/021:18:400
123989912737,65cyclictest0-21swapper/023:08:150
123989912728,69cyclictest0-21swapper/023:54:460
123989912728,68cyclictest0-21swapper/023:12:190
123989912728,67cyclictest0-21swapper/021:12:060
123989912728,67cyclictest0-21swapper/021:12:050
123989912727,65cyclictest0-21swapper/022:40:150
125949912633,82cyclictest0-21swapper/2819:50:1221
125799912620,78cyclictest0-21swapper/2621:57:3419
123989912642,61cyclictest0-21swapper/022:10:190
123989912630,66cyclictest0-21swapper/023:16:330
123989912628,69cyclictest0-21swapper/022:45:020
123989912628,61cyclictest0-21swapper/000:21:430
123989912627,59cyclictest0-21swapper/000:08:190
123989912626,65cyclictest0-21swapper/020:25:150
123989912626,65cyclictest0-21swapper/020:25:150
123989912626,64cyclictest0-21swapper/023:45:560
123989912626,62cyclictest0-21swapper/023:28:210
12610991250,75cyclictest0-21swapper/3022:36:3924
125709912550,75cyclictest0-21swapper/2523:21:2718
124249912549,75cyclictest0-21swapper/522:12:1127
123989912529,73cyclictest0-21swapper/021:53:500
123989912529,72cyclictest0-21swapper/022:22:440
123989912529,63cyclictest0-21swapper/020:55:240
123989912529,63cyclictest0-21swapper/020:55:230
123989912528,71cyclictest0-21swapper/000:38:520
123989912526,53cyclictest0-21swapper/019:50:160
12424991240,86cyclictest0-21swapper/500:03:2127
123989912429,64cyclictest0-21swapper/021:29:400
123989912429,64cyclictest0-21swapper/021:29:400
123989912426,66cyclictest0-21swapper/022:06:160
123989912328,65cyclictest0-21swapper/019:16:330
123989912327,63cyclictest0-21swapper/020:34:340
123989912327,63cyclictest0-21swapper/020:34:330
123989912326,70cyclictest0-21swapper/000:00:390
123989912325,64cyclictest0-21swapper/021:21:030
123989912324,63cyclictest0-21swapper/020:45:190
123989912324,63cyclictest0-21swapper/020:45:190
123989912324,58cyclictest0-21swapper/000:27:070
123989912322,60cyclictest0-21swapper/019:28:370
123989912227,62cyclictest0-21swapper/000:13:130
123989912226,59cyclictest0-21swapper/023:44:550
74082121112,7sleep240-21swapper/2419:05:1317
126109912126,76cyclictest0-21swapper/3022:58:0024
125269912115,95cyclictest0-21swapper/1922:29:2111
125269912115,30cyclictest0-21swapper/1900:01:2511
126109912030,84cyclictest0-21swapper/3023:23:4024
12594991203,74cyclictest0-21swapper/2819:27:4721
125499912023,65cyclictest151rcu_preempt19:47:0615
125269912015,104cyclictest0-21swapper/1900:23:2211
123989912044,52cyclictest0-21swapper/019:21:530
123989912027,61cyclictest0-21swapper/020:15:240
125799911920,74cyclictest0-21swapper/2600:19:4419
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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