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2026-05-20 - 10:21
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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 rack1slot3.osadl.org (updated Wed May 20, 2026 00:43:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
59221999130,1cyclictest0-21swapper/323:00:113
59221999130,11cyclictest0-21swapper/322:00:123
592219991211,0cyclictest0-21swapper/322:10:113
59221999120,11cyclictest0-21swapper/323:45:143
59221999120,11cyclictest0-21swapper/322:20:133
59221999120,11cyclictest0-21swapper/321:14:563
59221999120,11cyclictest0-21swapper/320:40:173
59221999120,11cyclictest0-21swapper/320:30:203
59221999120,11cyclictest0-21swapper/320:26:143
59221999120,11cyclictest0-21swapper/300:25:023
592219991110,0cyclictest0-21swapper/322:35:133
592219991110,0cyclictest0-21swapper/320:20:203
59221999110,8cyclictest0-21swapper/320:55:163
59221999110,10cyclictest0-21swapper/323:15:153
59221999110,10cyclictest0-21swapper/319:30:163
59221999110,10cyclictest0-21swapper/319:21:113
59221999110,10cyclictest0-21swapper/300:15:133
59221999110,0cyclictest0-21swapper/323:35:013
59221999110,0cyclictest0-21swapper/300:10:023
59221999109,0cyclictest0-21swapper/321:40:133
592219991010,0cyclictest0-21swapper/323:25:193
592219991010,0cyclictest0-21swapper/322:50:223
592219991010,0cyclictest0-21swapper/322:05:143
592219991010,0cyclictest0-21swapper/320:40:023
59221999100,9cyclictest0-21swapper/323:15:013
59221999100,9cyclictest0-21swapper/321:45:203
59221999100,10cyclictest0-21swapper/300:00:193
59221999100,0cyclictest0-21swapper/321:40:003
59221999100,0cyclictest0-21swapper/321:20:113
59221999100,0cyclictest0-21swapper/321:00:183
59221999100,0cyclictest0-21swapper/320:15:183
5922199999,0cyclictest0-21swapper/323:50:213
5922199999,0cyclictest0-21swapper/323:05:113
5922199999,0cyclictest0-21swapper/322:49:563
5922199999,0cyclictest0-21swapper/321:30:123
5922199999,0cyclictest0-21swapper/321:20:013
5922199998,0cyclictest0-21swapper/320:50:133
5922199998,0cyclictest0-21swapper/300:25:133
5922199998,0cyclictest0-21swapper/300:25:123
5922199990,8cyclictest0-21swapper/322:55:163
5922199990,8cyclictest0-21swapper/319:35:153
5922199990,8cyclictest0-21swapper/319:25:123
5922199990,0cyclictest0-21swapper/300:30:133
5922199988,0cyclictest0-21swapper/323:55:113
5922199988,0cyclictest0-21swapper/322:40:163
5922199988,0cyclictest0-21swapper/321:25:123
5922199988,0cyclictest0-21swapper/300:36:313
5922199987,0cyclictest0-21swapper/320:45:123
5922199987,0cyclictest0-21swapper/320:00:183
5922199986,1cyclictest0-21swapper/323:40:173
590371280,5sleep30-21swapper/319:05:133
5922199977,0cyclictest0-21swapper/322:15:123
5922199977,0cyclictest0-21swapper/319:50:163
5922199977,0cyclictest0-21swapper/300:10:173
5922199976,0cyclictest0-21swapper/323:35:173
5922199976,0cyclictest0-21swapper/323:20:143
5922199966,0cyclictest0-21swapper/321:50:133
5922199966,0cyclictest0-21swapper/319:50:003
5922199965,1cyclictest0-21swapper/319:10:153
5922199960,6cyclictest0-21swapper/321:55:173
724384250,3sleep1724468-21irqstats00:30:171
5922199954,0cyclictest0-21swapper/320:10:023
5922199951,2cyclictest0-21swapper/319:55:123
5922199950,3cyclictest0-21swapper/319:40:543
5922199950,0cyclictest0-21swapper/319:19:053
5922199944,0cyclictest0-21swapper/322:30:143
5922199944,0cyclictest0-21swapper/322:25:093
5922199940,3cyclictest6141402chrt20:05:133
5922199940,2cyclictest0-21swapper/321:05:123
591930242,1sleep10-21swapper/119:09:051
590342240,1sleep2590368-21apt-get19:05:132
703165230,2sleep1703075-21/usr/sbin/munin23:40:131
675410230,1sleep10-21swapper/122:35:001
631374230,2sleep0631477-21latency_hist20:50:010
624506230,2sleep1623957-21/usr/sbin/munin20:30:161
622041230,1sleep0622067-21apt-get20:25:120
600695230,1sleep2600721-21apt-get19:30:112
591086231,1sleep00-21swapper/019:05:190
726639220,1sleep2726770-21awk00:35:172
722311220,1sleep1722444-21sed00:25:161
722311220,1sleep1722444-21sed00:25:151
714835220,0sleep00-21swapper/000:05:290
710254220,1sleep0710407-21sed23:55:170
700445220,1sleep00-21swapper/023:32:360
696533220,0sleep00-21swapper/023:24:510
692599220,1sleep00-21swapper/023:15:030
690708220,1sleep0690790-21irqstats23:10:130
688461220,0sleep00-21swapper/023:05:140
668610221,0sleep2191rcu_preempt22:17:362
654288220,1sleep2654322-21basename21:45:142
652202220,1sleep0652228-21apt-get21:40:130
647391220,0sleep00-21swapper/021:28:030
642841220,1sleep00-21swapper/021:15:230
636569220,1sleep0636694-21python321:00:180
623705220,1sleep1623721-21munin-run20:30:011
617586220,1sleep00-21swapper/020:10:230
606542220,1sleep0606757-21grep19:45:140
605577220,1sleep2605827-21users19:40:192
596605220,1sleep1596789-21ls19:20:011
727498210,0sleep00-21swapper/000:36:510
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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