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2026-06-30 - 05:58
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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 Tue Jun 30, 2026 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
146550800irq/30-eth0-tx-181ktimersoftd/121:40:191
81770rcu_preempt7248-21diskmemload21:54:161
81770rcu_preempt0-21swapper/100:34:101
81750rcu_preempt0-21swapper/119:10:261
81730rcu_preempt9766-21diskstats23:20:261
81730rcu_preempt3150-1kworker/1:0H23:16:381
81730rcu_preempt26800-21ssh21:50:280
81730rcu_preempt10764-21ntp_states22:20:331
81720rcu_preempt7589-21df22:15:241
81720rcu_preempt2192-21snmpd22:36:071
81720rcu_preempt0-21swapper/121:45:351
81710rcu_preempt0-21swapper/123:07:551
81710rcu_preempt0-21swapper/122:55:351
81710rcu_preempt0-21swapper/022:40:350
81710rcu_preempt0-21swapper/020:15:230
81710rcu_preempt0-21swapper/019:50:100
89950700irq/17-ehci_hcd945-21usb-storage19:15:080
81700rcu_preempt19967-21interrupts19:55:280
81700rcu_preempt0-21swapper/122:10:331
81700rcu_preempt0-21swapper/100:29:121
81700rcu_preempt0-21swapper/022:51:510
81690rcu_preempt19505-21sh23:39:080
81690rcu_preempt0-21swapper/121:23:141
81680rcu_preempt4293-21sh00:10:391
81680rcu_preempt0-21swapper/123:11:081
81670rcu_preempt31980-21ssh00:01:351
81670rcu_preempt31301-21sh21:59:040
81670rcu_preempt0-21swapper/122:28:571
81660rcu_preempt7248-21diskmemload23:01:211
81660rcu_preempt12987-21ls19:25:371
81660rcu_preempt0-21swapper/122:42:171
81660rcu_preempt0-21swapper/023:45:080
81660rcu_preempt0-21swapper/021:31:300
81650rcu_preempt14795-21/usr/sbin/munin23:30:381
81650rcu_preempt10908-21mailstats22:20:350
81650rcu_preempt0-21swapper/100:10:061
81650rcu_preempt0-21swapper/023:27:480
81650rcu_preempt0-21swapper/019:45:290
81640rcu_preempt15160-21ssh21:28:421
81640rcu_preempt0-21swapper/123:55:161
81640rcu_preempt0-21swapper/100:17:081
81640rcu_preempt0-21swapper/021:40:230
81640rcu_preempt0-21swapper/021:26:180
81630rcu_preempt4144-21ssh00:10:370
81630rcu_preempt31620-21latency_hist22:00:101
81630rcu_preempt18344-21ssh21:35:200
81630rcu_preempt13961-21ps19:30:340
81630rcu_preempt12257-21if_can119:25:280
81630rcu_preempt0-21swapper/123:47:251
81630rcu_preempt0-21swapper/021:20:140
81630rcu_preempt0-21swapper/020:59:490
89950620irq/17-ehci_hcd945-21usb-storage20:27:201
81620rcu_preempt9963-21ssh00:21:361
81620rcu_preempt13335-21ssh23:25:521
81620rcu_preempt0-21swapper/122:51:531
81620rcu_preempt0-21swapper/122:49:061
81620rcu_preempt0-21swapper/121:15:161
81620rcu_preempt0-21swapper/120:15:341
81620rcu_preempt0-21swapper/023:05:360
81620rcu_preempt0-21swapper/020:40:220
81620rcu_preempt0-21swapper/000:00:320
81610rcu_preempt0-21swapper/119:55:231
81610rcu_preempt0-21swapper/022:02:500
81600rcu_preempt7059-21sort21:10:350
81600rcu_preempt32580-21ntp_states22:00:351
81600rcu_preempt0-21swapper/123:38:081
81600rcu_preempt0-21swapper/121:10:281
81600rcu_preempt0-21swapper/023:32:220
81600rcu_preempt0-21swapper/022:26:500
81600rcu_preempt0-21swapper/019:21:300
81590rcu_preempt7248-21diskmemload23:18:100
81590rcu_preempt21170-21ssh23:40:501
81590rcu_preempt0-21swapper/123:50:461
81590rcu_preempt0-21swapper/122:08:161
81590rcu_preempt0-21swapper/121:37:241
81590rcu_preempt0-21swapper/121:31:021
81590rcu_preempt0-21swapper/120:40:261
81590rcu_preempt0-21swapper/120:39:311
81590rcu_preempt0-21swapper/100:42:191
81590rcu_preempt0-21swapper/100:37:511
81590rcu_preempt0-21swapper/022:10:280
81590rcu_preempt0-21swapper/000:23:260
81580rcu_preempt17754-21ssh22:35:031
81580rcu_preempt10557-21latency_hist19:20:091
81580rcu_preempt0-21swapper/022:45:260
81580rcu_preempt0-21swapper/022:05:350
81580rcu_preempt0-21swapper/021:46:370
81580rcu_preempt0-21swapper/020:50:300
81580rcu_preempt0-21swapper/020:05:270
81580rcu_preempt0-21swapper/019:35:230
81570rcu_preempt0-21swapper/120:50:311
81570rcu_preempt0-21swapper/120:00:351
81570rcu_preempt0-21swapper/023:55:360
81570rcu_preempt0-21swapper/023:53:230
81570rcu_preempt0-21swapper/023:02:240
81570rcu_preempt0-21swapper/022:36:470
81570rcu_preempt0-21swapper/000:35:500
81570rcu_preempt0-21swapper/000:08:220
81560rcu_preempt7555-21grep22:15:240
81560rcu_preempt3-21ksoftirqd/020:45:360
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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