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2026-05-01 - 10:08
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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 highest latencies:
System rack3slot6.osadl.org (updated Fri May 01, 2026 00:44:59)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1171321100,6chrt11716-21missed_timers21:25:271
277039910277,12cyclictest14-21ksoftirqd/023:55:150
27703999981,9cyclictest14-21ksoftirqd/022:05:100
2713029916,38sleep00-21swapper/019:05:490
27703999779,9cyclictest14-21ksoftirqd/019:25:140
27703999772,15cyclictest14-21ksoftirqd/000:00:140
27703999679,12cyclictest14-21ksoftirqd/000:15:410
27703999262,17cyclictest14-21ksoftirqd/022:30:160
27703999065,17cyclictest14-21ksoftirqd/023:05:150
27703999063,14cyclictest14-21ksoftirqd/021:20:130
27703998961,18cyclictest14-21ksoftirqd/022:55:230
27703998858,17cyclictest14-21ksoftirqd/020:10:140
27703998766,10cyclictest14-21ksoftirqd/021:05:150
27703998760,18cyclictest14-21ksoftirqd/019:40:140
27703998759,18cyclictest14-21ksoftirqd/021:30:130
27703998758,19cyclictest14-21ksoftirqd/022:00:130
27703998758,16cyclictest14-21ksoftirqd/023:15:150
2668728710,65sleep126739-21ps19:05:251
168492870,6chrt0-21swapper/121:40:221
27703998458,17cyclictest14-21ksoftirqd/020:30:140
27703998455,19cyclictest14-21ksoftirqd/021:00:130
27703998250,23cyclictest14-21ksoftirqd/023:30:150
27709998050,13cyclictest503-21snmpd19:52:031
27703998054,18cyclictest14-21ksoftirqd/020:40:100
27703997949,19cyclictest14-21ksoftirqd/023:50:170
27703997851,19cyclictest14-21ksoftirqd/019:20:140
27703997851,18cyclictest14-21ksoftirqd/019:30:110
27703997851,18cyclictest14-21ksoftirqd/019:30:110
27703997749,18cyclictest14-21ksoftirqd/019:55:120
2770399768,31cyclictest11134-21runrttasks21:25:140
27709997527,42cyclictest26-21ksoftirqd/122:35:331
27703997544,21cyclictest14-21ksoftirqd/020:55:120
27709997410,15cyclictest0-21swapper/122:00:141
27703997447,17cyclictest14-21ksoftirqd/020:45:130
27703997344,19cyclictest14-21ksoftirqd/020:05:120
27703997344,17cyclictest14-21ksoftirqd/000:20:110
27703997343,18cyclictest14-21ksoftirqd/022:10:150
27703997341,19cyclictest14-21ksoftirqd/022:15:150
27703997239,19cyclictest14-21ksoftirqd/019:15:150
27703997142,19cyclictest0-21swapper/021:15:160
27703997140,19cyclictest14-21ksoftirqd/021:10:140
27703997040,17cyclictest0-21swapper/020:15:150
27703997014,50cyclictest0-21swapper/021:40:110
2770999682,21cyclictest24311-21head20:30:171
27703996840,17cyclictest0-21swapper/023:45:130
27703996813,50cyclictest0-21swapper/020:25:110
27703996714,39cyclictest0-21swapper/022:25:110
27703996713,43cyclictest0-21swapper/000:35:140
27703996641,16cyclictest0-21swapper/000:30:130
2770399662,26cyclictest7409-21df22:45:200
27703996621,36cyclictest19709-21aten2.4-expect23:20:160
27703996619,35cyclictest0-21swapper/022:35:120
27703996614,38cyclictest0-21swapper/022:50:110
27709996531,27cyclictest26-21ksoftirqd/100:19:591
27709996521,39cyclictest26-21ksoftirqd/121:03:051
27703996537,19cyclictest14-21ksoftirqd/020:50:150
27703996537,19cyclictest14-21ksoftirqd/020:50:150
27703996536,17cyclictest0-21swapper/019:50:220
27703996523,34cyclictest20798-21aten2.4-expect20:20:140
2770399649,10cyclictest14-21ksoftirqd/023:39:010
27703996441,14cyclictest0-21swapper/023:40:170
27703996436,18cyclictest0-21swapper/023:10:120
27703996433,19cyclictest0-21swapper/021:55:150
27703996431,19cyclictest0-21swapper/019:10:150
27703996417,26cyclictest0-21swapper/019:35:120
27709996315,23cyclictest26-21ksoftirqd/119:30:221
27709996315,23cyclictest26-21ksoftirqd/119:30:221
27709996312,14cyclictest151rcu_preempt22:00:011
27703996335,17cyclictest0-21swapper/022:40:120
27703996312,43cyclictest0-21swapper/021:35:120
218162630,5chrt21819-21unixbench_multi20:20:351
27709996240,8cyclictest19135-21telnet20:15:161
27709996216,26cyclictest30260-21cpuspeed19:15:171
27703996238,14cyclictest0-21swapper/020:35:120
2770399622,15cyclictest19725-21apt-get21:50:050
27703996216,27cyclictest0-21swapper/023:00:140
2770999613,21cyclictest388-21idleruntime-cro20:55:001
2770999613,21cyclictest388-21idleruntime-cro20:55:001
27709996123,19cyclictest26-21ksoftirqd/122:20:011
27703996129,21cyclictest0-21swapper/000:25:180
27703996123,31cyclictest0-21swapper/022:21:530
27703996119,35cyclictest18220-21aten2.4-expect21:45:150
27709996037,9cyclictest26-21ksoftirqd/120:40:181
27709996035,19cyclictest26-21ksoftirqd/123:35:001
2770999603,14cyclictest27607-21munin-run20:40:011
2770999603,12cyclictest6905-21munin-run22:45:001
27709996029,19cyclictest26-21ksoftirqd/121:50:051
27709996022,19cyclictest26-21ksoftirqd/120:00:011
27709996018,17cyclictest1502-21seq22:28:531
27709996014,41cyclictest0-21swapper/120:00:191
27709995935,17cyclictest26-21ksoftirqd/119:40:351
27709995934,9cyclictest27823-21telnet19:10:161
27709995931,9cyclictest503-21snmpd20:47:241
27709995918,25cyclictest26-21ksoftirqd/100:15:011
2770399595,48cyclictest0-21swapper/020:02:450
2770999587,12cyclictest0-21swapper/123:50:151
27709995836,16cyclictest6344-21grep19:40:021
27709995835,17cyclictest26-21ksoftirqd/100:00:171
27709995834,9cyclictest26-21ksoftirqd/123:40:141
27709995831,13cyclictest26-21ksoftirqd/100:25:011
2770399583,32cyclictest3977-21/usr/sbin/munin00:10:340
27709995734,9cyclictest26-21ksoftirqd/123:45:181
27709995733,18cyclictest26-21ksoftirqd/100:34:291
2770999573,11cyclictest15971-21munin-run23:10:001
27709995726,15cyclictest26-21ksoftirqd/121:40:011
2770999572,11cyclictest10842-21appstreamcli22:55:051
27703995733,14cyclictest0-21swapper/019:45:120
27703995729,18cyclictest0-21swapper/023:25:110
2770999565,46cyclictest0-21swapper/121:32:151
2770999564,11cyclictest7452-21munin-run21:15:011
27709995640,10cyclictest18045-21telnet23:15:171
2770999563,11cyclictest18833-21munin-run20:15:001
2770999563,11cyclictest14471-21ionclean00:39:011
27709995631,19cyclictest26-21ksoftirqd/120:25:311
27709995628,13cyclictest26-21ksoftirqd/123:39:001
27709995625,14cyclictest654-21seq23:56:001
2770999562,18cyclictest585-21/usr/sbin/munin20:55:251
27709995615,23cyclictest26-21ksoftirqd/121:07:451
27709995614,37cyclictest0-21swapper/121:45:361
2770999559,41cyclictest0-21swapper/119:24:441
27709995531,18cyclictest457-21dbus-daemon00:10:001
2770999552,15cyclictest8816-21apt-get22:50:111
2770399556,43cyclictest0-21swapper/000:07:260
2770999549,40cyclictest9423-21aten2.4_r3power21:20:151
2770999549,25cyclictest28773-21seq22:14:511
2770999546,43cyclictest0-21swapper/122:49:001
27709995438,9cyclictest26-21ksoftirqd/119:50:001
27709995438,10cyclictest19712-21telnet23:20:161
27709995437,10cyclictest26-21ksoftirqd/123:25:231
27709995436,11cyclictest26-21ksoftirqd/123:10:251
27709995436,11cyclictest26-21ksoftirqd/121:20:011
2770999543,11cyclictest17100-21munin-run20:10:001
27709995418,24cyclictest0-21swapper/100:25:151
27709995413,22cyclictest2670-21taskset19:29:551
261682540,15sleep126167-21ntp_states22:05:301
27709995338,9cyclictest26-21ksoftirqd/123:02:461
27709995336,10cyclictest26-21ksoftirqd/122:30:191
27709995336,10cyclictest26-21ksoftirqd/122:20:181
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*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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