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2026-05-06 - 17:29
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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
Characteristics of the 100 highest latencies:
System rack6slot0.osadl.org (updated Wed May 06, 2026 13:03:46)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
290399210194,12cyclictest0-21swapper/2909:50:4722
290399210194,12cyclictest0-21swapper/2909:50:4722
290399205197,6cyclictest0-21swapper/2909:41:5222
290399205197,6cyclictest0-21swapper/2909:41:5222
289599201192,5cyclictest3544-21CPU16
289599201192,5cyclictest3544-21CPU16
290499193183,8cyclictest0-21swapper/3009:52:2224
290499193183,8cyclictest0-21swapper/3009:52:2224
289599190110,62cyclictest3610-21CPU16
289599190110,62cyclictest3610-21CPU16
289599190110,62cyclictest3610-21CPU16
290299189165,18cyclictest171rcu_preempt08:10:3621
290299189165,18cyclictest171rcu_preempt08:10:3621
289599189134,51cyclictest3609-21CPU16
289599189134,51cyclictest3609-21CPU16
289599189134,51cyclictest3609-21CPU16
287599189181,5cyclictest1-21systemd09:10:2236
287599189181,5cyclictest1-21systemd09:10:2236
287599189181,5cyclictest1-21systemd09:10:2236
290699188182,4cyclictest0-21swapper/3210:54:2326
290699188182,4cyclictest0-21swapper/3210:54:2326
290699188182,4cyclictest0-21swapper/3210:54:2326
290299188183,4cyclictest0-21swapper/2808:45:2421
290299188173,10cyclictest0-21swapper/2811:26:2121
290299188173,10cyclictest0-21swapper/2811:26:2121
290299188173,10cyclictest0-21swapper/2811:26:2121
290699187182,4cyclictest0-21swapper/3207:49:1526
290699187182,4cyclictest0-21swapper/3207:49:1526
290399187180,3cyclictest4407-21CPU22
290399187180,3cyclictest4407-21CPU22
290699186179,5cyclictest0-21swapper/3207:37:0826
290699186179,5cyclictest0-21swapper/3207:37:0826
290699186173,11cyclictest0-21swapper/3211:18:2726
290699186173,11cyclictest0-21swapper/3211:18:2726
290399186177,5cyclictest3548-21CPU22
290399186177,5cyclictest3548-21CPU22
290299186178,2cyclictest171rcu_preempt10:13:1321
290299186178,2cyclictest171rcu_preempt10:13:1321
290299186178,2cyclictest171rcu_preempt10:13:1321
289599186179,5cyclictest0-21swapper/2310:39:2916
289599186179,5cyclictest0-21swapper/2310:39:2916
289599186179,5cyclictest0-21swapper/2310:39:2916
290499185132,29cyclictest0-21swapper/3010:10:2824
290499185132,29cyclictest0-21swapper/3010:10:2824
290499185132,29cyclictest0-21swapper/3010:10:2824
287599185176,5cyclictest2459-21CPU36
287599185176,5cyclictest2459-21CPU36
287599185176,5cyclictest2459-21CPU36
291399184181,2cyclictest0-21swapper/3811:34:3632
291399184181,2cyclictest0-21swapper/3811:34:3632
291399184181,2cyclictest0-21swapper/3811:34:3632
290399184111,39cyclictest0-21swapper/2909:39:5622
290399184111,39cyclictest0-21swapper/2909:39:5622
290399184111,39cyclictest0-21swapper/2909:39:5622
287599184177,5cyclictest0-21swapper/611:52:5636
287599184177,5cyclictest0-21swapper/611:52:5636
287599184177,5cyclictest0-21swapper/611:52:5636
289599183175,6cyclictest0-21swapper/2310:40:1216
289599183175,6cyclictest0-21swapper/2310:40:1216
290399182177,4cyclictest0-21swapper/2909:45:4422
290399182177,4cyclictest0-21swapper/2909:45:4422
289599182176,5cyclictest0-21swapper/2311:48:3316
289599182176,5cyclictest0-21swapper/2311:48:3316
289599182175,5cyclictest0-21swapper/2310:22:0416
289599182175,5cyclictest0-21swapper/2310:22:0416
289599182175,5cyclictest0-21swapper/2310:22:0416
287599182176,4cyclictest0-21swapper/609:27:3636
287599182176,4cyclictest0-21swapper/609:27:3636
287599182176,4cyclictest0-21swapper/609:27:3636
287599182174,6cyclictest3298-21sshd09:20:5536
287599182174,6cyclictest3298-21sshd09:20:5536
290699181158,18cyclictest3545-21CPU26
290699181158,18cyclictest3545-21CPU26
290699181158,18cyclictest3545-21CPU26
290299181129,31cyclictest0-21swapper/2807:46:5921
290299181129,31cyclictest0-21swapper/2807:46:5921
289599181161,10cyclictest0-21swapper/2308:10:2416
289599181161,10cyclictest0-21swapper/2308:10:2416
291399180136,38cyclictest0-21swapper/3811:55:1732
291399180136,38cyclictest0-21swapper/3811:55:1732
29059918079,28cyclictest0-21swapper/3112:19:4625
29059918079,28cyclictest0-21swapper/3112:19:4625
29059918079,28cyclictest0-21swapper/3112:19:4625
290399180172,2cyclictest0-21swapper/2911:15:3422
290399180172,2cyclictest0-21swapper/2911:15:3422
290299180127,16cyclictest171rcu_preempt09:35:4721
290299180127,16cyclictest171rcu_preempt09:35:4721
290299180127,16cyclictest171rcu_preempt09:35:4721
289599180175,4cyclictest0-21swapper/2312:18:2316
289599180175,4cyclictest0-21swapper/2312:18:2316
289599180175,4cyclictest0-21swapper/2312:18:2316
290699179168,6cyclictest171rcu_preempt08:00:5126
290699179168,6cyclictest171rcu_preempt08:00:5126
290499179174,4cyclictest0-21swapper/3012:27:4824
290499179174,4cyclictest0-21swapper/3012:27:4824
290499179172,6cyclictest0-21swapper/3010:34:3624
290499179172,6cyclictest0-21swapper/3010:34:3624
290499179172,6cyclictest0-21swapper/3010:34:3624
290399179174,4cyclictest0-21swapper/2907:24:4122
290399179174,4cyclictest0-21swapper/2907:24:4122
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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