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2025-11-18 - 09:06
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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 Tue Nov 18, 2025 01:44:18)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
31964225226,70sleep031762-21/usr/sbin/munin19:05:210
4799918038,16cyclictest10250irq/56-4a10000020:43:360
4799917955,11cyclictest0-21swapper/023:25:430
479991748,34cyclictest1424-21nginx21:58:440
4799917336,17cyclictest10250irq/56-4a10000023:33:430
4799917038,114cyclictest10250irq/56-4a10000022:33:580
4799916936,14cyclictest10250irq/56-4a10000021:38:410
4799916842,16cyclictest20431-21runrttasks20:26:350
4799916340,14cyclictest10150irq/55-4a10000019:57:580
4799916340,13cyclictest10150irq/55-4a10000019:45:410
4799916123,15cyclictest12525-21latency_hist22:05:040
4799916024,31cyclictest10250irq/56-4a10000023:53:230
4799915938,102cyclictest3650irq/20-4900000021:00:230
4799915937,21cyclictest17131-21ntpq00:25:390
4799915932,31cyclictest3650irq/20-4900000021:42:140
4799915818,15cyclictest27388-21latency_hist23:00:040
4799915655,92cyclictest11465-21/usr/sbin/munin00:05:170
4799915640,18cyclictest9988-21tr00:00:020
4799915640,13cyclictest10150irq/55-4a10000023:10:220
4799915633,19cyclictest30580-21runrttasks21:08:020
4799915618,15cyclictest14118-21latency_hist00:15:050
4799915553,91cyclictest14726-21seq22:11:120
4799915541,16cyclictest23280-21latency_hist22:45:010
4799915440,12cyclictest10150irq/55-4a10000023:08:380
4799915436,18cyclictest7984-21apt-get19:40:280
4799915344,98cyclictest19259-21runrttasks22:30:080
4799915342,15cyclictest10150irq/55-4a10000022:20:020
4799915339,16cyclictest21292-21netstat20:30:340
479991529,20cyclictest1356-21snmpd20:24:070
479991528,17cyclictest1356-21snmpd20:48:090
4799915244,17cyclictest15912-21/usr/sbin/munin00:20:550
4799915242,12cyclictest10150irq/55-4a10000019:12:490
4799915232,18cyclictest1424-21nginx20:07:550
4799915136,18cyclictest2661-21ntpq21:25:380
4799915117,14cyclictest10250irq/56-4a10000019:38:250
479991507,17cyclictest16289-21memory20:10:380
4799915042,18cyclictest28674-21latency_hist23:05:030
4799915027,19cyclictest4993-21sendmail-msp23:40:030
4799914949,15cyclictest6432-21aten_r7power_po23:45:170
4799914948,84cyclictest101ktimersoftd/000:35:320
4799914939,20cyclictest2825-21runrttasks19:18:360
4799914932,22cyclictest23624-21fw_conntrack22:45:250
4799914932,21cyclictest6582-21runrttasks19:33:430
4799914854,11cyclictest101ktimersoftd/019:25:240
4799914848,14cyclictest22043-21sendmail-msp22:40:030
4799914841,17cyclictest31605-21runrttasks21:11:090
4799914840,19cyclictest1216-21munin-plugin-st23:25:010
4799914836,17cyclictest3280-21cpu19:20:150
4799914833,17cyclictest17973-21apt-get20:17:030
479991477,19cyclictest760-21systemd-journal19:53:300
479991477,19cyclictest22643-21/usr/sbin/munin20:35:460
4799914748,15cyclictest13599-21aten_r7power_vo20:00:170
4799914651,86cyclictest3563-21aten_r7power_cu21:30:140
4799914643,13cyclictest10150irq/55-4a10000022:50:430
4799914641,17cyclictest11037-21runrttasks00:03:160
4799914638,19cyclictest32404-21munin-plugin-st23:20:020
4799914610,35cyclictest488-21apt-get21:17:020
4799914540,18cyclictest26102-21cpu20:50:190
4799914524,22cyclictest8961-21wget21:50:140
4799914442,13cyclictest5112-21/usr/sbin/munin23:40:530
4799914440,16cyclictest7892-21forks21:45:280
4799914433,19cyclictest760-21systemd-journal22:09:340
4799914431,22cyclictest14441-21diskstats00:15:220
4799914431,19cyclictest1018-21/usr/sbin/munin21:20:280
479991439,21cyclictest18187-21df00:30:210
4799914345,83cyclictest101ktimersoftd/020:58:100
4799914037,15cyclictest17857-21runrttasks22:24:360
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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