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2026-04-05 - 22:02
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Data to construct the above plot have been generated using the RT test utility cyclictest.

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 rack7slot8.osadl.org (updated Sun Apr 05, 2026 02:44:18)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
14427219322,57sleep014425-21diskstats19:05:240
154009917938,31cyclictest10250irq/56-4a10000023:42:240
15400991637,24cyclictest24671-40ogrotate00:00:020
154009916019,20cyclictest8484-21latency_hist22:55:040
154009915942,27cyclictest0-21swapper/019:30:230
154009915810,21cyclictest19627-21ntp_states19:25:420
15400991579,15cyclictest728-21apt-get20:18:220
154009915749,13cyclictest10150irq/55-4a10000022:35:400
154009915648,14cyclictest10150irq/55-4a10000019:40:010
154009915631,28cyclictest3650irq/20-4900000021:32:120
154009915548,96cyclictest0-21swapper/022:05:240
154009915541,14cyclictest10150irq/55-4a10000021:25:110
154009915444,13cyclictest10150irq/55-4a10000021:17:100
154009915353,15cyclictest29893-21iwlist20:05:520
154009915350,16cyclictest16734-21aten_r7power_cu19:15:120
154009915343,30cyclictest3650irq/20-4900000022:17:240
154009915342,16cyclictest8717-21latency_hist20:50:040
154009915248,17cyclictest2808-21/usr/sbin/munin22:30:460
154009915244,14cyclictest10150irq/55-4a10000000:26:340
154009915240,19cyclictest19207-21runrttasks19:25:030
154009915239,29cyclictest10321-21ntpq20:55:340
15400991518,19cyclictest7174-21sshd20:43:210
154009915147,14cyclictest10150irq/55-4a10000021:55:280
154009915045,14cyclictest10150irq/55-4a10000020:20:390
154009914848,17cyclictest24659-21seq21:50:230
154009914842,14cyclictest10150irq/55-4a10000021:12:200
154009914758,11cyclictest101ktimersoftd/000:10:250
154009914744,18cyclictest6143-21sendmail20:40:020
154009914655,12cyclictest101ktimersoftd/022:40:380
154009914649,12cyclictest20357-21tr21:35:120
154009914648,16cyclictest29507-21wget22:10:140
154009914642,18cyclictest6524-21runrttasks22:45:440
154009914638,23cyclictest12588-21cut21:05:160
154009914546,13cyclictest10150irq/55-4a10000020:25:370
154009914536,27cyclictest3650irq/20-4900000000:17:220
154009914513,38cyclictest0-21swapper/019:53:000
154009914457,11cyclictest101ktimersoftd/000:05:180
154009914446,15cyclictest30593-21awk00:20:330
154009914441,18cyclictest16159-21runrttasks19:11:180
154009914439,19cyclictest18007-21runrttasks23:31:170
15400991439,20cyclictest29065-21/usr/sbin/munin20:05:040
154009914257,11cyclictest101ktimersoftd/023:05:370
154009914250,11cyclictest101ktimersoftd/000:30:160
154009914244,17cyclictest3810-21aten_r7power_en20:30:130
154009914240,28cyclictest23324-21seq23:54:100
154009914155,11cyclictest101ktimersoftd/020:45:260
154009914142,14cyclictest10150irq/55-4a10000021:46:340
154009914048,12cyclictest10983-21apt23:05:010
154009913956,11cyclictest101ktimersoftd/023:10:180
154009913950,12cyclictest101ktimersoftd/019:40:150
154009913752,11cyclictest101ktimersoftd/022:00:180
154009913353,12cyclictest101ktimersoftd/023:45:190
15400991299,16cyclictest1305-21snmpd23:22:480
15400991298,19cyclictest2010-21node22:58:540
1724021055,86sleep017213-21latency_hist23:30:030
3270321005,81sleep032706-21ntp_states22:20:410
117762995,83sleep011807-21sshd21:00:470
15400999033,40cyclictest0-21swapper/021:23:210
14302905,72sleep01431-21memory22:25:330
1540099898,28cyclictest1973-21sshd00:35:200
15400998951,24cyclictest101ktimersoftd/020:10:470
198042840,8sleep019805-21latency_hist23:40:050
15400998131,36cyclictest0-21swapper/019:45:070
15400998037,30cyclictest3650irq/20-4900000000:00:130
15400997950,13cyclictest10150irq/55-4a10000023:17:100
15400997748,13cyclictest10150irq/55-4a10000019:55:200
15400997710,48cyclictest21981-21ntp_states21:40:420
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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