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2026-07-15 - 08:38
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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 Jul 15, 2026 00:48:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2698999336139,1cyclictest151rcu_preempt22:10:036
3273913240,317ptp4l0-21swapper/119:06:311
3273913240,317ptp4l0-21swapper/119:06:301
255552240233,6sleep30-21swapper/319:07:2323
255552240233,6sleep30-21swapper/319:07:2223
270529915615,107cyclictest0-21swapper/2621:14:0619
270029915046,67cyclictest0-21swapper/1621:33:018
269799914716,123cyclictest88-21ksoftirqd/1221:52:074
2693499146120,26cyclictest22-21ksoftirqd/121:42:021
269839914558,20cyclictest151rcu_preempt19:55:215
269649914458,67cyclictest0-21swapper/823:55:0130
26950991430,89cyclictest0-21swapper/500:05:1627
26950991430,89cyclictest0-21swapper/500:05:1527
27018991429,117cyclictest151rcu_preempt23:53:4710
270029913930,100cyclictest0-21swapper/1600:20:308
270029913930,100cyclictest0-21swapper/1600:20:298
269649913925,102cyclictest151rcu_preempt23:09:3630
270029913831,74cyclictest0-21swapper/1620:35:198
270029913829,99cyclictest0-21swapper/1623:02:128
27021991370,83cyclictest0-21swapper/1900:29:3811
27021991370,83cyclictest0-21swapper/1900:29:3811
270029913728,107cyclictest0-21swapper/1623:27:358
270029913728,107cyclictest0-21swapper/1623:27:348
270029913724,112cyclictest8947-21cat21:25:008
270219913528,64cyclictest0-21swapper/1921:15:3611
269349913553,59cyclictest0-21swapper/123:06:511
269349913546,58cyclictest0-21swapper/122:20:301
270489913412,108cyclictest151rcu_preempt23:17:2318
270219913452,60cyclictest0-21swapper/1923:09:2711
270219913427,68cyclictest0-21swapper/1922:06:5411
270029913426,90cyclictest0-21swapper/1621:15:218
269349913428,71cyclictest0-21swapper/122:03:431
269349913426,70cyclictest0-21swapper/100:00:111
270219913353,60cyclictest0-21swapper/1922:28:1811
270219913348,59cyclictest0-21swapper/1921:43:2311
270219913339,61cyclictest0-21swapper/1919:15:5411
270219913329,70cyclictest0-21swapper/1922:19:4111
270219913329,68cyclictest0-21swapper/1919:31:5611
270029913326,68cyclictest0-21swapper/1622:10:258
269349913329,70cyclictest0-21swapper/100:38:251
269349913329,70cyclictest0-21swapper/100:38:241
270219913225,63cyclictest0-21swapper/1920:51:3311
269349913249,61cyclictest0-21swapper/122:28:321
269349913244,57cyclictest0-21swapper/100:27:111
269349913244,57cyclictest0-21swapper/100:27:111
269349913229,71cyclictest0-21swapper/120:35:141
27048991313,81cyclictest0-21swapper/2523:02:3718
270219913146,51cyclictest0-21swapper/1922:53:2411
270219913129,67cyclictest0-21swapper/1922:59:1711
270219913128,71cyclictest0-21swapper/1921:49:4911
26950991310,81cyclictest0-21swapper/523:15:3727
269349913150,65cyclictest0-21swapper/100:32:001
269349913150,65cyclictest0-21swapper/100:32:001
269349913144,57cyclictest0-21swapper/119:20:251
269349913136,57cyclictest0-21swapper/121:35:531
270219913050,62cyclictest0-21swapper/1919:10:0111
270219913031,73cyclictest0-21swapper/1920:29:0411
270219913030,69cyclictest0-21swapper/1921:13:5811
270219913028,67cyclictest0-21swapper/1919:45:1711
270219913027,67cyclictest0-21swapper/1921:25:4511
270029913030,60cyclictest0-21swapper/1620:20:008
269349913039,60cyclictest0-21swapper/120:35:011
269349913032,67cyclictest0-21swapper/123:33:591
269349913031,70cyclictest0-21swapper/122:38:251
269349913030,72cyclictest0-21swapper/122:50:191
269349913027,67cyclictest0-21swapper/119:35:221
269349913027,66cyclictest0-21swapper/121:55:231
269349913026,65cyclictest0-21swapper/121:09:251
269349913025,70cyclictest0-21swapper/100:07:121
269349913025,70cyclictest0-21swapper/100:07:111
270219912930,72cyclictest0-21swapper/1923:47:5611
270219912930,68cyclictest0-21swapper/1923:18:0011
270219912929,70cyclictest0-21swapper/1922:46:5911
270219912928,70cyclictest0-21swapper/1900:14:3411
270219912928,70cyclictest0-21swapper/1900:14:3411
270219912926,62cyclictest0-21swapper/1900:05:3511
270219912926,62cyclictest0-21swapper/1900:05:3411
270029912990,39cyclictest112-21ksoftirqd/1621:59:438
269349912934,68cyclictest0-21swapper/122:31:121
269349912932,64cyclictest0-21swapper/121:34:171
269349912930,72cyclictest0-21swapper/123:52:581
269349912929,70cyclictest0-21swapper/123:19:051
269349912928,69cyclictest0-21swapper/122:46:101
269349912928,68cyclictest0-21swapper/123:48:111
269349912928,68cyclictest0-21swapper/119:50:361
269349912928,66cyclictest0-21swapper/100:11:281
269349912928,66cyclictest0-21swapper/100:11:271
270529912825,93cyclictest0-21swapper/2600:37:1419
270529912825,93cyclictest0-21swapper/2600:37:1419
270219912828,64cyclictest0-21swapper/1921:20:2511
270219912827,66cyclictest0-21swapper/1922:23:5411
270189912834,28cyclictest0-21swapper/1800:13:0210
270189912834,28cyclictest0-21swapper/1800:13:0210
270029912820,96cyclictest0-21swapper/1621:45:588
269349912829,66cyclictest0-21swapper/100:15:581
269349912829,66cyclictest0-21swapper/100:15:571
269349912828,70cyclictest0-21swapper/121:24:101
269349912827,67cyclictest0-21swapper/122:40:181
269349912827,63cyclictest0-21swapper/123:44:141
269349912827,63cyclictest0-21swapper/123:44:131
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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