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2026-08-31 - 07:08
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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 100 highest latencies:
System rack3slot6.osadl.org (updated Mon Aug 31, 2026 00:45:01)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2037029922,32sleep10-21swapper/119:08:151
20725999362,19cyclictest26-21ksoftirqd/123:50:131
20725999163,18cyclictest26-21ksoftirqd/120:30:131
20725999064,17cyclictest26-21ksoftirqd/123:35:171
20725998961,18cyclictest26-21ksoftirqd/123:30:121
2072199897,65cyclictest0-21swapper/019:35:130
2025928919,25sleep00-21swapper/019:07:030
20725998859,19cyclictest26-21ksoftirqd/121:30:151
20725998859,17cyclictest26-21ksoftirqd/100:20:141
20725998562,14cyclictest26-21ksoftirqd/121:40:121
20725998560,16cyclictest26-21ksoftirqd/123:15:131
20725998555,17cyclictest26-21ksoftirqd/121:55:141
20725998554,22cyclictest26-21ksoftirqd/122:40:121
20725998358,17cyclictest26-21ksoftirqd/120:35:111
20725998354,19cyclictest26-21ksoftirqd/122:00:131
2072199838,12cyclictest0-21swapper/022:15:120
20725998250,18cyclictest26-21ksoftirqd/121:50:141
20725998049,19cyclictest26-21ksoftirqd/121:15:141
20725998048,21cyclictest26-21ksoftirqd/119:50:141
20725998045,29cyclictest26-21ksoftirqd/120:50:151
20725997948,21cyclictest26-21ksoftirqd/119:10:121
20725997847,21cyclictest26-21ksoftirqd/100:15:151
20725997547,19cyclictest26-21ksoftirqd/100:35:141
20725997341,21cyclictest26-21ksoftirqd/120:55:141
20721997347,17cyclictest27831-21apt-get22:30:160
20721997346,10cyclictest503-21snmpd23:20:410
20725997239,22cyclictest26-21ksoftirqd/121:25:151
45222710,8sleep014-21ksoftirqd/022:55:230
20725997142,17cyclictest0-21swapper/121:05:141
20725997139,19cyclictest0-21swapper/120:15:131
20721997145,9cyclictest14-21ksoftirqd/023:04:160
20721997138,16cyclictest14-21ksoftirqd/000:29:580
20721997138,16cyclictest14-21ksoftirqd/000:29:580
256562700,5chrt0-21swapper/023:55:170
20725997042,18cyclictest0-21swapper/100:10:151
2072599702,19cyclictest14827-21munin-run23:25:011
2072199707,15cyclictest0-21swapper/020:20:130
20725996942,17cyclictest0-21swapper/122:30:181
20725996940,17cyclictest0-21swapper/119:20:141
20725996939,18cyclictest0-21swapper/123:00:131
20725996913,42cyclictest0-21swapper/121:20:161
20725996839,17cyclictest0-21swapper/123:40:151
20725996838,19cyclictest0-21swapper/119:30:151
20725996837,21cyclictest26-21ksoftirqd/122:10:151
20725996837,21cyclictest26-21ksoftirqd/122:10:151
20725996836,21cyclictest26-21ksoftirqd/122:50:151
20725996836,21cyclictest26-21ksoftirqd/122:50:151
20725996813,42cyclictest0-21swapper/120:45:141
2072199685,56cyclictest23770-21apt-get23:50:130
20721996819,34cyclictest14-21ksoftirqd/022:25:130
2829526728,22sleep00-21swapper/019:30:120
20725996735,22cyclictest0-21swapper/123:25:131
20725996733,19cyclictest0-21swapper/122:45:131
20725996712,42cyclictest0-21swapper/122:25:141
20721996740,10cyclictest14-21ksoftirqd/000:39:290
20725996638,18cyclictest26-21ksoftirqd/100:00:141
20725996637,17cyclictest0-21swapper/120:05:151
20725996630,23cyclictest26-21ksoftirqd/120:00:151
2072599657,44cyclictest0-21swapper/123:10:141
20721996536,11cyclictest14-21ksoftirqd/000:24:160
20721996534,17cyclictest14-21ksoftirqd/021:15:180
20721996532,27cyclictest503-21snmpd23:29:150
215682640,15sleep0171rcuc/020:40:240
20725996416,42cyclictest0-21swapper/120:20:381
20725996414,44cyclictest0-21swapper/119:15:091
20721996434,25cyclictest14-21ksoftirqd/021:25:190
20721996434,17cyclictest14-21ksoftirqd/023:05:190
20721996434,15cyclictest14-21ksoftirqd/020:00:000
20721996433,23cyclictest14-21ksoftirqd/021:30:160
2072199642,18cyclictest22372-21idleruntime-cro19:15:010
2072599639,46cyclictest18760-21sshd22:05:161
2072599638,49cyclictest0-21swapper/122:15:231
20725996333,20cyclictest0-21swapper/120:10:111
20725996332,19cyclictest0-21swapper/119:45:241
20725996314,43cyclictest0-21swapper/122:55:401
20725996314,15cyclictest30713-21ls00:10:011
2072199636,20cyclictest10560-21aten2.4-expect20:10:150
2072199633,10cyclictest14365-21smartctl21:50:350
20725996211,45cyclictest0-21swapper/121:45:381
2072199626,12cyclictest0-21swapper/019:40:230
2072199624,42cyclictest6996-21apt-get20:00:150
20721996236,10cyclictest14-21ksoftirqd/020:50:160
20721996235,21cyclictest13836-21turbostat20:20:000
2072199623,42cyclictest25154-21df19:20:210
2072599618,11cyclictest26-21ksoftirqd/122:25:001
20725996114,41cyclictest0-21swapper/119:40:251
20725996110,10cyclictest26-21ksoftirqd/119:39:001
2072199618,16cyclictest151rcu_preempt21:05:150
20721996137,9cyclictest14-21ksoftirqd/023:45:320
20721996123,19cyclictest14-21ksoftirqd/023:15:000
20721996120,28cyclictest14-21ksoftirqd/021:55:120
20721996040,8cyclictest14-21ksoftirqd/023:30:320
20721996028,18cyclictest151rcu_preempt22:20:350
20721996020,33cyclictest29174-21aten2.4-expect00:05:180
20721996011,37cyclictest0-21swapper/022:35:130
20721996010,14cyclictest151rcu_preempt21:50:000
2072599599,11cyclictest26-21ksoftirqd/119:25:161
20725995934,15cyclictest0-21swapper/120:40:141
20725995924,24cyclictest0-21swapper/121:35:141
2072599592,16cyclictest15864-21aten2.4-expect20:25:161
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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