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2026-05-04 - 07:52
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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 Mon May 04, 2026 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81960rcu_preempt14489-21ssh00:02:290
81710rcu_preempt19-21ksoftirqd/122:48:361
81700rcu_preempt19-21ksoftirqd/122:03:381
81690rcu_preempt23628-21ssh21:30:340
81690rcu_preempt0-21swapper/023:20:360
81680rcu_preempt0-21swapper/022:00:450
81670rcu_preempt0-21swapper/023:38:580
81650rcu_preempt0-21swapper/121:17:491
81650rcu_preempt0-21swapper/120:15:461
81650rcu_preempt0-21swapper/100:22:011
81650rcu_preempt0-21swapper/022:50:030
81650rcu_preempt0-21swapper/021:56:230
81640rcu_preempt0-21swapper/121:20:451
81640rcu_preempt0-21swapper/100:12:381
81640rcu_preempt0-21swapper/021:22:040
81630rcu_preempt8664-21kworker/0:019:05:370
81630rcu_preempt7615-21kworker/1:019:05:401
81630rcu_preempt0-21swapper/123:39:041
81630rcu_preempt0-21swapper/122:32:021
81630rcu_preempt0-21swapper/121:42:081
81630rcu_preempt0-21swapper/121:11:161
81630rcu_preempt0-21swapper/120:55:361
81630rcu_preempt0-21swapper/120:30:361
81620rcu_preempt11486-21diskmemload00:38:181
81620rcu_preempt0-21swapper/123:24:331
81620rcu_preempt0-21swapper/122:24:211
81620rcu_preempt0-21swapper/023:04:400
81620rcu_preempt0-21swapper/022:23:200
81620rcu_preempt0-21swapper/020:00:360
81610rcu_preempt21904-21ssh21:26:121
81610rcu_preempt21076-21ssh23:17:341
81610rcu_preempt0-21swapper/122:35:241
81610rcu_preempt0-21swapper/122:16:501
81610rcu_preempt0-21swapper/121:40:001
81610rcu_preempt0-21swapper/100:30:101
81610rcu_preempt0-21swapper/000:15:440
81600rcu_preempt6430-21apt20:50:220
81600rcu_preempt6379-21ssh22:51:281
81600rcu_preempt32721-21if_wlan021:45:400
81600rcu_preempt27440-21ssh23:29:361
81600rcu_preempt24275-21ssh22:26:051
81600rcu_preempt17119-21ssh00:06:391
81600rcu_preempt10304-21ssh22:59:431
81600rcu_preempt0-21swapper/123:43:451
81600rcu_preempt0-21swapper/122:45:181
81600rcu_preempt0-21swapper/121:31:071
81600rcu_preempt0-21swapper/120:35:371
81600rcu_preempt0-21swapper/120:05:451
81600rcu_preempt0-21swapper/119:55:561
81600rcu_preempt0-21swapper/119:45:361
81600rcu_preempt0-21swapper/022:15:420
81600rcu_preempt0-21swapper/021:16:360
81590rcu_preempt0-21swapper/123:59:281
81590rcu_preempt0-21swapper/121:55:491
81590rcu_preempt0-21swapper/121:45:421
81590rcu_preempt0-21swapper/021:25:420
81590rcu_preempt0-21swapper/021:11:340
81590rcu_preempt0-21swapper/020:05:430
81580rcu_preempt4604-21if_eth023:45:401
81580rcu_preempt29708-21ssh23:32:521
81580rcu_preempt28324-21ssh00:26:090
81580rcu_preempt15561-21ssh23:07:491
81580rcu_preempt13451-21ssh22:08:201
81580rcu_preempt0-21swapper/123:55:151
81580rcu_preempt0-21swapper/122:10:471
81580rcu_preempt0-21swapper/120:40:401
81580rcu_preempt0-21swapper/120:20:451
81580rcu_preempt0-21swapper/100:30:361
81580rcu_preempt0-21swapper/100:04:251
81580rcu_preempt0-21swapper/023:26:220
81580rcu_preempt0-21swapper/022:39:230
81570rcu_preempt463-21ssh22:41:240
81570rcu_preempt0-21swapper/123:00:581
81570rcu_preempt0-21swapper/121:53:421
81570rcu_preempt0-21swapper/121:53:421
81570rcu_preempt0-21swapper/120:50:451
81570rcu_preempt0-21swapper/120:10:411
81570rcu_preempt0-21swapper/120:04:041
81570rcu_preempt0-21swapper/023:56:500
81570rcu_preempt0-21swapper/023:40:460
81570rcu_preempt0-21swapper/023:34:370
81570rcu_preempt0-21swapper/023:18:180
81570rcu_preempt0-21swapper/023:00:200
81570rcu_preempt0-21swapper/022:07:120
81570rcu_preempt0-21swapper/021:00:360
81570rcu_preempt0-21swapper/000:39:030
146650570irq/31-eth0-tx-41ktimersoftd/022:30:120
81560rcu_preempt20209-21ssh00:13:150
81560rcu_preempt17020-21ssh00:06:220
81560rcu_preempt0-21swapper/121:00:411
81560rcu_preempt0-21swapper/119:25:361
81560rcu_preempt0-21swapper/022:30:450
81550rcu_preempt379-21fw_conntrack20:25:371
81550rcu_preempt0-21swapper/120:45:381
81550rcu_preempt0-21swapper/119:10:381
81550rcu_preempt0-21swapper/023:49:480
81550rcu_preempt0-21swapper/023:13:330
81550rcu_preempt0-21swapper/022:14:340
81550rcu_preempt0-21swapper/021:51:140
81550rcu_preempt0-21swapper/021:51:140
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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