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2026-05-18 - 04:24
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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 100 highest latencies:
System rack4slot4.osadl.org (updated Mon May 18, 2026 00:44:13)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
75372900chrt46650irq/116-QMan10:48:553
75372900chrt46650irq/116-QMan10:48:553
75372900chrt46650irq/116-QMan10:48:553
71700rcu_preempt0-21swapper/300:29:463
71700rcu_preempt0-21swapper/300:29:463
71700rcu_preempt0-21swapper/300:29:463
2285699564cyclictest0-21swapper/023:08:060
2285699564cyclictest0-21swapper/023:08:060
71550rcu_preempt0-21swapper/223:13:292
71550rcu_preempt0-21swapper/223:13:292
71550rcu_preempt0-21swapper/223:13:292
71540rcu_preempt0-21swapper/221:36:182
71540rcu_preempt0-21swapper/221:36:182
2285699546cyclictest4752-21spawn19:13:510
2285699546cyclictest4752-21spawn19:13:510
2285699546cyclictest4752-21spawn19:13:510
2285699546cyclictest4752-21spawn19:13:510
2285699544cyclictest0-21swapper/021:13:170
2285699544cyclictest0-21swapper/021:13:170
2285699544cyclictest0-21swapper/021:13:170
2285699543cyclictest0-21swapper/019:38:070
2285699543cyclictest0-21swapper/019:38:070
2285699543cyclictest0-21swapper/019:38:070
2285699541cyclictest5201-21irqstats22:43:150
2285699541cyclictest5201-21irqstats22:43:150
2285699541cyclictest5201-21irqstats22:43:150
71530rcu_preempt0-21swapper/100:28:221
71530rcu_preempt0-21swapper/100:28:221
71530rcu_preempt0-21swapper/100:28:221
2285699533cyclictest0-21swapper/000:13:080
2285699533cyclictest0-21swapper/000:13:080
2285699531cyclictest0-21swapper/021:51:270
2285699531cyclictest0-21swapper/021:51:270
2285699531cyclictest0-21swapper/021:51:270
2285699524cyclictest0-21swapper/021:43:010
2285699523cyclictest0-21swapper/022:38:200
2285699523cyclictest0-21swapper/022:38:200
2285699523cyclictest0-21swapper/022:38:200
2285699523cyclictest0-21swapper/020:17:540
2285699523cyclictest0-21swapper/020:17:540
2285699522cyclictest21437-21memory23:13:190
2285699522cyclictest21437-21memory23:13:190
2285699522cyclictest21437-21memory23:13:190
22856995223cyclictest27480-21ssh21:23:350
22856995223cyclictest27480-21ssh21:23:350
2285699521cyclictest7512-21apt-get22:48:070
2285699521cyclictest7512-21apt-get22:48:070
2285699521cyclictest23605-21apt-get22:18:080
2285699521cyclictest23605-21apt-get22:18:080
2285699521cyclictest21635-21grep22:13:240
2285699521cyclictest21635-21grep22:13:240
2285699521cyclictest10166-21apt-get22:53:060
2285699521cyclictest10166-21apt-get22:53:060
2285699521cyclictest10166-21apt-get22:53:060
2285699514cyclictest0-21swapper/019:18:260
2285699514cyclictest0-21swapper/019:18:260
2285699514cyclictest0-21swapper/019:18:260
2285699514cyclictest0-21swapper/000:08:420
2285699514cyclictest0-21swapper/000:08:420
2285699514cyclictest0-21swapper/000:08:420
2285699512cyclictest30331-1kworker/0:4H21:32:520
2285699512cyclictest30331-1kworker/0:4H21:32:520
22856995121cyclictest0-21swapper/021:56:210
22856995121cyclictest0-21swapper/021:56:210
2285699508cyclictest0-21swapper/019:33:200
2285699508cyclictest0-21swapper/019:33:200
2285699504cyclictest0-21swapper/000:23:120
2285699504cyclictest0-21swapper/000:23:120
2285699504cyclictest0-21swapper/000:23:120
2285699503cyclictest31243-21meminfo19:53:160
2285699503cyclictest31243-21meminfo19:53:160
2285699503cyclictest31243-21meminfo19:53:160
2285699503cyclictest28282-21df_inode19:43:110
2285699503cyclictest28282-21df_inode19:43:110
2285699503cyclictest16133-21meminfo23:03:180
2285699503cyclictest16133-21meminfo23:03:180
2285699503cyclictest0-21swapper/022:33:250
2285699503cyclictest0-21swapper/022:33:250
2285699502cyclictest32433-21ntp_states00:33:230
2285699502cyclictest32433-21ntp_states00:33:230
2285699502cyclictest32433-21ntp_states00:33:230
2285699502cyclictest29972-21ntp_states19:48:230
2285699502cyclictest29972-21ntp_states19:48:230
2285699502cyclictest13271-21memory22:58:170
2285699502cyclictest13271-21memory22:58:170
2285699502cyclictest0-21swapper/023:28:070
2285699502cyclictest0-21swapper/023:28:070
2285699501cyclictest7558-21apt-get23:48:080
2285699501cyclictest7558-21apt-get23:48:080
2285699501cyclictest2044-21/usr/sbin/munin23:38:230
2285699501cyclictest2044-21/usr/sbin/munin23:38:230
2285699501cyclictest2044-21/usr/sbin/munin23:38:230
2285699501cyclictest18621-21chrt22:08:140
2285699501cyclictest18621-21chrt22:08:140
2285699501cyclictest15571-1kworker/0:1H22:03:250
2285699501cyclictest15571-1kworker/0:1H22:03:250
2285699501cyclictest15571-1kworker/0:1H22:03:250
2285699501cyclictest12802-21apt-get21:58:060
2285699501cyclictest12802-21apt-get21:58:060
2285699501cyclictest12802-21apt-get21:58:060
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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