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2025-12-10 - 19:39
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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 rackcslot3.osadl.org (updated Wed Dec 10, 2025 12:43:25)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81710rcu_preempt0-21swapper/009:05:020
81700rcu_preempt895-21df07:39:550
90050690irq/17-ehci_hcd946-21usb-storage09:13:011
81690rcu_preempt0-21swapper/009:34:430
81680rcu_preempt3490-21sh10:27:200
81670rcu_preempt25092-21ps07:05:030
81670rcu_preempt0-21swapper/012:20:310
81670rcu_preempt0-21swapper/011:49:200
81660rcu_preempt31573-21sh12:15:000
81660rcu_preempt0-21swapper/112:26:221
81660rcu_preempt0-21swapper/112:00:511
81660rcu_preempt0-21swapper/109:51:321
81660rcu_preempt0-21swapper/109:23:461
81660rcu_preempt0-21swapper/012:28:190
81650rcu_preempt2235-21snmpd10:02:280
81650rcu_preempt0-21swapper/110:02:081
81650rcu_preempt0-21swapper/011:20:560
151950650irq/31-eth0-tx-181ktimersoftd/110:48:541
81640rcu_preempt16881-21sh09:54:140
81640rcu_preempt0-21swapper/112:14:221
81640rcu_preempt0-21swapper/111:20:391
81640rcu_preempt0-21swapper/109:57:461
81640rcu_preempt0-21swapper/011:15:040
81640rcu_preempt0-21swapper/010:42:460
81640rcu_preempt0-21swapper/010:42:460
81640rcu_preempt0-21swapper/009:56:490
81640rcu_preempt0-21swapper/008:38:420
81640rcu_preempt0-21swapper/007:51:160
81630rcu_preempt25422-21sshd07:08:241
81630rcu_preempt2235-21snmpd10:19:021
81630rcu_preempt0-21swapper/112:34:251
81630rcu_preempt0-21swapper/111:56:431
81630rcu_preempt0-21swapper/111:45:031
81630rcu_preempt0-21swapper/110:27:521
81630rcu_preempt0-21swapper/110:04:531
81630rcu_preempt0-21swapper/011:53:070
81620rcu_preempt4452-21ssh10:29:520
81620rcu_preempt0-21swapper/112:24:101
81620rcu_preempt0-21swapper/109:26:571
81620rcu_preempt0-21swapper/108:04:561
81620rcu_preempt0-21swapper/007:14:590
81610rcu_preempt884-21ssh12:18:501
81610rcu_preempt2762-21ssh09:29:421
81610rcu_preempt0-21swapper/111:42:351
81610rcu_preempt0-21swapper/110:59:141
81610rcu_preempt0-21swapper/110:50:061
81610rcu_preempt0-21swapper/109:00:061
81600rcu_preempt29019-21ssh09:18:461
81600rcu_preempt27888-21ssh10:13:401
81600rcu_preempt27229-21ssh12:07:081
81600rcu_preempt22704-21cpu11:59:550
81600rcu_preempt0-21swapper/111:07:021
81600rcu_preempt0-21swapper/111:00:031
81600rcu_preempt0-21swapper/110:43:481
81600rcu_preempt0-21swapper/110:43:481
81600rcu_preempt0-21swapper/109:36:221
81590rcu_preempt32212-21basename07:34:591
81590rcu_preempt18923-21ssh11:52:231
81590rcu_preempt0-21swapper/111:16:411
81590rcu_preempt0-21swapper/110:31:291
81590rcu_preempt0-21swapper/109:40:021
81590rcu_preempt0-21swapper/108:29:591
81590rcu_preempt0-21swapper/011:11:290
81590rcu_preempt0-21swapper/009:40:060
81590rcu_preempt0-21swapper/007:48:390
81580rcu_preempt28493-21ssh11:10:561
81580rcu_preempt21398-21ssh10:59:430
81580rcu_preempt17771-21ssh10:52:380
81580rcu_preempt1218-21ssh09:25:210
81580rcu_preempt0-21swapper/111:37:311
81580rcu_preempt0-21swapper/111:27:591
81580rcu_preempt0-21swapper/107:09:561
81580rcu_preempt0-21swapper/012:35:030
81580rcu_preempt0-21swapper/012:05:360
81580rcu_preempt0-21swapper/010:34:580
81580rcu_preempt0-21swapper/010:34:580
81580rcu_preempt0-21swapper/008:08:360
90050570irq/17-ehci_hcd27971-21kworker/1:107:22:041
81570rcu_preempt7740-21ssh11:32:121
81570rcu_preempt7604-21fw_conntrack10:34:571
81570rcu_preempt7604-21fw_conntrack10:34:571
81570rcu_preempt12819-21ssh09:45:481
81570rcu_preempt11071-21ssh12:35:241
81570rcu_preempt0-21swapper/110:20:311
81570rcu_preempt0-21swapper/109:08:501
81570rcu_preempt0-21swapper/108:48:571
81570rcu_preempt0-21swapper/011:05:160
81570rcu_preempt0-21swapper/010:09:320
81570rcu_preempt0-21swapper/008:50:040
151950570irq/31-eth0-tx-0-21swapper/010:59:070
81560rcu_preempt7813-21ps12:30:040
81560rcu_preempt5836-21ssh11:29:430
81560rcu_preempt30743-21ssh10:18:340
81560rcu_preempt18402-21munin-run08:49:400
81560rcu_preempt15108-21ssh10:48:210
81560rcu_preempt13539-21ssh11:43:010
81560rcu_preempt0-21swapper/108:49:521
81560rcu_preempt0-21swapper/108:25:021
81560rcu_preempt0-21swapper/108:15:121
81560rcu_preempt0-21swapper/107:53:521
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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