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2026-05-23 - 16:32
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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 20 highest latencies:
System rackcslot3.osadl.org (updated Sat May 23, 2026 12:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81760rcu_preempt0-21swapper/107:07:221
81750rcu_preempt20936-21diskmemload09:55:321
81740rcu_preempt655-21ls09:32:211
81740rcu_preempt28174-21cron12:22:021
81720rcu_preempt24351-21diskstats09:17:170
81710rcu_preempt20936-21diskmemload10:30:500
81700rcu_preempt31094-21apt-get11:27:121
81700rcu_preempt26244-21users10:17:301
81700rcu_preempt2192-21snmpd08:20:541
81700rcu_preempt14726-21apt-get10:57:131
81690rcu_preempt1118-21munin-run11:32:020
81690rcu_preempt0-21swapper/111:58:441
81690rcu_preempt0-21swapper/111:55:531
81690rcu_preempt0-21swapper/109:15:071
81690rcu_preempt0-21swapper/010:22:440
81680rcu_preempt4844-21awk12:37:241
81680rcu_preempt32280-21sh10:29:071
81680rcu_preempt14097-21sh10:55:281
81680rcu_preempt0-21swapper/012:04:510
81670rcu_preempt6604-21munin-run11:42:010
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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