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2025-09-18 - 15:26
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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 50 highest latencies:
System rack2slot7.osadl.org (updated Thu Sep 18, 2025 12:43:24)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
322957994717,6cyclictest0-21swapper/010:37:280
32295799465,38cyclictest0-21swapper/009:45:030
32295799422,10cyclictest371372-21sendmail-msp09:27:340
322957993916,2cyclictest535000-21ntpq12:12:310
322958993727,6cyclictest764-21rs:main1
322957993616,4cyclictest11050irq/107-eth%d11:17:320
322958993520,11cyclictest419166-21/usr/sbin/munin10:17:331
32295799354,21cyclictest554767-21/usr/sbin/munin12:32:310
32295799341,18cyclictest0-21swapper/010:55:040
32295999338,10cyclictest171rcu_preempt10:15:012
322957993228,3cyclictest446317-21apt-get10:45:040
32295899319,17cyclictest1006-21mta-sts-daemon08:00:041
32295999306,17cyclictest111788-21systemd-journal11:46:592
32295899292,5cyclictest171rcu_preempt10:15:011
32295799292,18cyclictest407111-21munin-run10:05:010
32295799291,25cyclictest524462-21fschecks_count12:02:270
322958992812,4cyclictest11050irq/107-eth%d09:07:351
322957992815,1cyclictest0-21swapper/010:34:480
32295999266,17cyclictest0-21swapper/209:07:352
32295899269,7cyclictest11050irq/107-eth%d10:30:151
32295899266,7cyclictest171rcu_preempt07:15:021
32295999252,21cyclictest535002-21ssh12:12:312
32295799253,17cyclictest334700-21kworker/0:0+events_power_efficient11:22:320
32295799253,17cyclictest334700-21kworker/0:0+events_power_efficient11:22:320
322957992523,1cyclictest486945-21sendmail-msp11:26:190
32295999243,5cyclictest0-21swapper/209:22:412
32295999242,3cyclictest171rcu_preempt10:45:052
32295999241,7cyclictest171rcu_preempt09:47:442
322959992417,4cyclictest0-21swapper/212:33:032
32295999238,11cyclictest514709-21ntp_states11:52:342
32295999232,10cyclictest171rcu_preempt11:57:342
32295999231,8cyclictest171rcu_preempt10:02:282
32295799231,21cyclictest398108-21kworker/u8:4+rpciod10:05:050
32295799231,21cyclictest356811-21tune2fs08:57:280
32295799230,16cyclictest0-21swapper/011:50:020
32295999222,14cyclictest486945-21sendmail-msp11:27:362
32295899223,5cyclictest524460-21tune2fs12:02:271
32295899221,16cyclictest369563-21/usr/sbin/munin09:22:381
32295799224,17cyclictest453546-21/usr/sbin/munin10:52:270
32295799222,14cyclictest544924-21ssh12:22:350
32295999213,12cyclictest479628-21ssh11:17:322
32295999212,17cyclictest419165-21ssh10:17:332
32295999211,3cyclictest428754-21ssh10:27:342
32295999211,13cyclictest407733-21sh10:05:052
322958992114,3cyclictest0-21swapper/109:45:031
32295799212,18cyclictest463808-21ssh11:02:240
112699210,12rtkit-daemon1125-21rtkit-daemon09:19:232
32295999208,10cyclictest351ktimers/208:47:562
32295999204,4cyclictest371940-21ssh09:25:042
32295999204,2cyclictest431643-21ssh10:30:152
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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