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2026-04-30 - 13:02
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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
Characteristics of the 100 highest latencies:
System rack6slot0.osadl.org (updated Thu Apr 30, 2026 01:01:30)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1760499212202,9cyclictest0-21swapper/3800:20:3032
1760499212202,9cyclictest0-21swapper/3800:20:3032
1760499212202,9cyclictest0-21swapper/3800:20:2932
1756799206200,4cyclictest0-21swapper/720:22:3837
1756999202195,5cyclictest0-21swapper/923:47:5539
1756999202195,5cyclictest0-21swapper/923:47:5539
1756999202195,5cyclictest0-21swapper/923:47:5539
1756999196183,7cyclictest0-21swapper/922:31:3939
1756999196183,7cyclictest0-21swapper/922:31:3839
1756999196183,7cyclictest0-21swapper/922:31:3839
1759799195189,3cyclictest1-21systemd23:10:1826
1759799195189,3cyclictest1-21systemd23:10:1826
1759799195189,3cyclictest1-21systemd23:10:1826
1756999195184,7cyclictest37358-21CPU39
1756999195184,7cyclictest37358-21CPU39
1758399192185,5cyclictest1360-21systemd-logind22:12:4714
1758399192185,5cyclictest1360-21systemd-logind22:12:4714
1756999192174,16cyclictest0-21swapper/923:58:2139
1756999192174,16cyclictest0-21swapper/923:58:2139
1756999191180,9cyclictest0-21swapper/900:20:2139
1756999191180,9cyclictest0-21swapper/900:20:2139
1756999191180,9cyclictest0-21swapper/900:20:2139
1758399190178,10cyclictest0-21swapper/2122:06:3514
1758399190178,10cyclictest0-21swapper/2122:06:3514
1758199188178,6cyclictest0-21swapper/1920:20:0511
1756999188181,4cyclictest0-21swapper/900:09:5539
1756999188181,4cyclictest0-21swapper/900:09:5539
1756999186178,5cyclictest4007-21libvirtd00:10:2639
1756999186178,5cyclictest4007-21libvirtd00:10:2539
1756999186175,9cyclictest0-21swapper/923:31:3539
1756999186175,9cyclictest0-21swapper/923:31:3539
1759199184167,12cyclictest0-21swapper/2622:10:5619
1759199184167,12cyclictest0-21swapper/2622:10:5619
1758399184181,2cyclictest0-21swapper/2122:02:2014
1758399184181,2cyclictest0-21swapper/2122:02:2014
1757199184130,52cyclictest0-21swapper/1100:27:593
1757199184130,52cyclictest0-21swapper/1100:27:593
1756399184149,29cyclictest0-21swapper/523:58:2735
1756399184149,29cyclictest0-21swapper/523:58:2735
1757199183144,30cyclictest0-21swapper/1122:31:383
1757199183144,30cyclictest0-21swapper/1122:31:373
1757199183144,30cyclictest0-21swapper/1122:31:373
1756999183173,8cyclictest0-21swapper/900:27:5139
1756999183173,8cyclictest0-21swapper/900:27:5039
1756999183172,8cyclictest1392-21gdbus00:32:3339
1756999183172,8cyclictest1392-21gdbus00:32:3339
1756799183102,71cyclictest2464-21CPU37
1756799183102,71cyclictest2464-21CPU37
1757199182115,64cyclictest0-21swapper/1100:38:523
1757199182115,64cyclictest0-21swapper/1100:38:513
1757199182112,67cyclictest0-21swapper/1121:20:303
1757199182112,67cyclictest0-21swapper/1121:20:303
1760499181169,11cyclictest0-21swapper/3822:13:1632
1760499181169,11cyclictest0-21swapper/3822:13:1632
1756999181176,4cyclictest0-21swapper/919:45:0439
1756999181176,4cyclictest0-21swapper/919:45:0339
1756999181174,5cyclictest0-21swapper/923:50:1639
1756999181174,5cyclictest0-21swapper/923:50:1639
1756999181173,5cyclictest0-21swapper/900:01:0339
1756999181173,5cyclictest0-21swapper/900:01:0339
1756999181173,5cyclictest0-21swapper/900:01:0339
1756799181148,23cyclictest37263-21CPU37
1756799181148,23cyclictest37263-21CPU37
1759699180143,33cyclictest0-21swapper/3123:43:0125
1759699180143,33cyclictest0-21swapper/3123:43:0125
1759199180175,4cyclictest0-21swapper/2621:24:2819
1759199180175,4cyclictest0-21swapper/2621:24:2819
1759199180172,6cyclictest0-21swapper/2621:16:1019
1759199180172,6cyclictest0-21swapper/2621:16:1019
1756999180175,4cyclictest0-21swapper/923:39:4039
1756999180175,4cyclictest0-21swapper/923:39:4039
1756799180175,3cyclictest2327-21qemu-system-x8621:45:5037
1756799180175,3cyclictest2327-21qemu-system-x8621:45:4937
1756799180174,4cyclictest0-21swapper/720:19:4037
1760499179127,20cyclictest0-21swapper/3800:14:0432
1760499179127,20cyclictest0-21swapper/3800:14:0432
1760499179124,33cyclictest0-21swapper/3822:39:0732
1760499179124,33cyclictest0-21swapper/3822:39:0732
1759199179171,5cyclictest0-21swapper/2600:20:3119
1759199179171,5cyclictest0-21swapper/2600:20:3119
1759199179171,5cyclictest0-21swapper/2600:20:3019
1758399179171,6cyclictest0-21swapper/2123:20:0214
1758399179171,6cyclictest0-21swapper/2123:20:0214
1757199179119,56cyclictest0-21swapper/1121:19:403
1757199179119,56cyclictest0-21swapper/1121:19:403
1756999179173,5cyclictest0-21swapper/900:16:5639
1756999179173,5cyclictest0-21swapper/900:16:5639
1756999179173,5cyclictest0-21swapper/900:16:5639
1760599178164,8cyclictest171rcu_preempt00:38:3233
1760599178164,8cyclictest171rcu_preempt00:38:3233
1760499178161,7cyclictest171rcu_preempt00:36:2332
1760499178161,7cyclictest171rcu_preempt00:36:2332
175969917881,92cyclictest0-21swapper/3120:50:1525
175969917881,92cyclictest0-21swapper/3120:50:1525
1759199178169,6cyclictest0-21swapper/2621:10:1719
1759199178169,6cyclictest0-21swapper/2621:10:1719
1759199178165,11cyclictest0-21swapper/2600:07:1619
1759199178165,11cyclictest0-21swapper/2600:07:1619
1758399178162,13cyclictest0-21swapper/2121:56:5414
1758399178162,13cyclictest0-21swapper/2121:56:5314
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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