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2025-07-06 - 00:10
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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 rackcslot3.osadl.org (updated Sat Jul 05, 2025 12:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81760rcu_preempt24211-21munin-run11:30:300
81740rcu_preempt32580-21ssh11:45:340
81730rcu_preempt0-21swapper/107:09:011
89950710irq/17-ehci_hcd26077-21ssh10:35:441
81710rcu_preempt3-21ksoftirqd/009:55:420
81700rcu_preempt16027-21ssh12:14:490
81700rcu_preempt16027-21ssh12:14:490
141350700irq/31-eth0-tx-181ktimersoftd/111:27:291
81680rcu_preempt20670-21ssh11:23:071
81670rcu_preempt8998-21sh11:01:150
81670rcu_preempt30785-21ssh10:43:280
81670rcu_preempt0-21swapper/111:42:321
81670rcu_preempt0-21swapper/009:32:140
141350670irq/31-eth0-tx-2224-21snmpd11:41:250
141250670irq/30-eth0-tx-41ktimersoftd/012:23:050
81660rcu_preempt27501-21munin-run08:15:300
81660rcu_preempt0-21swapper/012:30:540
81660rcu_preempt0-21swapper/011:58:200
81650rcu_preempt9885-21awk10:05:550
81650rcu_preempt18643-21rm12:19:261
81650rcu_preempt0-21swapper/112:13:081
81650rcu_preempt0-21swapper/112:13:081
81650rcu_preempt0-21swapper/111:13:351
81650rcu_preempt0-21swapper/109:39:531
81650rcu_preempt0-21swapper/010:47:360
81650rcu_preempt0-21swapper/009:21:140
81640rcu_preempt11096-21/usr/sbin/munin12:05:520
81640rcu_preempt11096-21/usr/sbin/munin12:05:520
81640rcu_preempt0-21swapper/112:02:311
81640rcu_preempt0-21swapper/109:55:521
81640rcu_preempt0-21swapper/109:25:041
81640rcu_preempt0-21swapper/012:04:360
81640rcu_preempt0-21swapper/008:00:500
81630rcu_preempt0-21swapper/112:39:051
81630rcu_preempt0-21swapper/111:57:211
81630rcu_preempt0-21swapper/109:33:411
81630rcu_preempt0-21swapper/108:45:461
81630rcu_preempt0-21swapper/108:19:491
81630rcu_preempt0-21swapper/108:09:341
81630rcu_preempt0-21swapper/010:00:440
81620rcu_preempt27277-21wc12:35:310
81620rcu_preempt0-21swapper/011:17:410
81620rcu_preempt0-21swapper/009:36:270
81610rcu_preempt31374-21ssh10:45:131
81610rcu_preempt2224-21snmpd07:14:331
81610rcu_preempt0-21swapper/111:37:491
81610rcu_preempt0-21swapper/111:07:511
81610rcu_preempt0-21swapper/110:34:051
81610rcu_preempt0-21swapper/011:30:570
81610rcu_preempt0-21swapper/011:24:440
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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