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2026-03-25 - 12:32
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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 highest latencies:
System rackcslot3.osadl.org (updated Wed Mar 25, 2026 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81770rcu_preempt5437-21grep20:39:351
81750rcu_preempt31318-21ntp_states21:44:581
81750rcu_preempt25089-21munin-run19:49:351
81740rcu_preempt4182-21ssh23:59:501
81740rcu_preempt15595-21ssh23:19:460
81730rcu_preempt25376-21ssh00:41:510
81730rcu_preempt14497-21ssh23:16:290
81720rcu_preempt0-21swapper/121:04:501
81710rcu_preempt22398-21ssh00:35:370
81710rcu_preempt20857-21ssh22:27:070
81710rcu_preempt19-21ksoftirqd/122:04:471
81710rcu_preempt12732-1kworker/0:0H00:03:510
81710rcu_preempt0-21swapper/023:57:560
81710rcu_preempt0-21swapper/000:25:020
81700rcu_preempt1658-21/usr/sbin/munin20:24:520
81700rcu_preempt0-21swapper/123:49:481
81700rcu_preempt0-21swapper/120:29:581
81700rcu_preempt0-21swapper/100:14:541
81700rcu_preempt0-21swapper/023:38:050
81700rcu_preempt0-21swapper/023:12:300
81690rcu_preempt20615-21memory21:24:550
81690rcu_preempt19794-21ssh00:30:280
81690rcu_preempt13148-21ssh22:12:060
81690rcu_preempt12680-21sh00:15:250
81690rcu_preempt0-21swapper/123:55:331
81690rcu_preempt0-21swapper/100:26:411
81690rcu_preempt0-21swapper/023:46:420
81690rcu_preempt0-21swapper/022:49:010
81680rcu_preempt18559-21python19:20:001
81680rcu_preempt0-21swapper/119:09:521
81680rcu_preempt0-21swapper/100:31:211
81670rcu_preempt22568-21ssh23:32:280
81670rcu_preempt22568-21ssh23:32:280
81670rcu_preempt13996-21/usr/sbin/munin22:14:550
81670rcu_preempt0-21swapper/123:38:441
81670rcu_preempt0-21swapper/121:37:221
81670rcu_preempt0-21swapper/023:24:450
81670rcu_preempt0-21swapper/019:11:140
81660rcu_preempt30062-21sh22:44:541
81660rcu_preempt10050-21ssh22:05:520
81660rcu_preempt0-21swapper/120:25:181
81660rcu_preempt0-21swapper/022:37:460
81650rcu_preempt16445-21ssh22:19:460
81650rcu_preempt0-21swapper/123:45:181
81650rcu_preempt0-21swapper/123:01:011
81640rcu_preempt25092-21latency_hist21:34:350
81640rcu_preempt0-21swapper/122:27:441
81640rcu_preempt0-21swapper/120:15:041
81640rcu_preempt0-21swapper/019:34:470
81630rcu_preempt3399-21latency_hist21:54:351
81630rcu_preempt0-21swapper/121:59:531
81630rcu_preempt0-21swapper/121:43:461
81630rcu_preempt0-21swapper/100:06:261
81620rcu_preempt26968-21ssh22:39:431
81620rcu_preempt22338-21ssh00:35:241
81620rcu_preempt15220-21ssh23:19:111
81620rcu_preempt0-21swapper/123:31:441
81620rcu_preempt0-21swapper/123:31:441
81620rcu_preempt0-21swapper/122:10:021
81620rcu_preempt0-21swapper/121:20:511
81620rcu_preempt0-21swapper/121:10:021
81620rcu_preempt0-21swapper/020:39:510
81620rcu_preempt0-21swapper/019:14:590
81610rcu_preempt3-21ksoftirqd/023:42:130
81610rcu_preempt23167-21ssh22:30:541
81610rcu_preempt0-21swapper/020:09:580
81610rcu_preempt0-21swapper/000:04:470
81600rcu_preempt8759-21ntpq20:49:561
81600rcu_preempt16032-21ssh22:18:431
81600rcu_preempt14219-21diskmemload23:51:040
81600rcu_preempt0-21swapper/120:20:081
81600rcu_preempt0-21swapper/022:54:490
81600rcu_preempt0-21swapper/021:20:250
81600rcu_preempt0-21swapper/020:49:540
81590rcu_preempt28459-21ssh22:41:100
81590rcu_preempt14219-21diskmemload22:56:421
81590rcu_preempt11934-21ssh23:11:531
81590rcu_preempt0-21swapper/123:39:561
81590rcu_preempt0-21swapper/123:19:471
81590rcu_preempt0-21swapper/123:05:001
81590rcu_preempt0-21swapper/122:22:171
81590rcu_preempt0-21swapper/120:34:501
81590rcu_preempt0-21swapper/119:52:581
81590rcu_preempt0-21swapper/100:19:581
81590rcu_preempt0-21swapper/021:50:230
81590rcu_preempt0-21swapper/021:37:200
81590rcu_preempt0-21swapper/021:16:440
81580rcu_preempt15624-21ssh21:15:101
81580rcu_preempt0-21swapper/120:54:581
81580rcu_preempt0-21swapper/023:09:110
81580rcu_preempt0-21swapper/021:55:250
81570rcu_preempt32208-21ssh22:49:400
81570rcu_preempt29308-21ssh21:40:400
81570rcu_preempt0-21swapper/122:35:171
81570rcu_preempt0-21swapper/121:53:001
81570rcu_preempt0-21swapper/121:04:101
81570rcu_preempt0-21swapper/120:49:351
81570rcu_preempt0-21swapper/119:55:401
81570rcu_preempt0-21swapper/020:19:420
81570rcu_preempt0-21swapper/020:19:290
81560rcu_preempt7517-21munin-run23:04:340
81560rcu_preempt471-21munin-run21:49:340
81560rcu_preempt15320-21ssh00:22:520
81560rcu_preempt0-21swapper/123:29:321
81560rcu_preempt0-21swapper/121:24:551
81560rcu_preempt0-21swapper/120:10:061
81560rcu_preempt0-21swapper/100:42:011
81560rcu_preempt0-21swapper/100:11:091
81560rcu_preempt0-21swapper/019:19:530
147850560irq/30-eth0-tx-0-21swapper/000:10:500
81550rcu_preempt29859-21mailstats20:05:001
81550rcu_preempt0-21swapper/119:24:521
81550rcu_preempt0-21swapper/119:24:521
81550rcu_preempt0-21swapper/119:15:051
81540rcu_preempt7531-21ssh22:01:240
81540rcu_preempt0-21swapper/122:54:311
81540rcu_preempt0-21swapper/119:41:361
81540rcu_preempt0-21swapper/119:37:161
81540rcu_preempt0-21swapper/119:30:011
81540rcu_preempt0-21swapper/022:30:290
81540rcu_preempt0-21swapper/021:04:500
81540rcu_preempt0-21swapper/020:05:000
81540rcu_preempt0-21swapper/019:59:530
81540rcu_preempt0-21swapper/019:32:020
89850530irq/17-ehci_hcd945-21usb-storage19:59:220
81530rcu_preempt24528-21ssh21:32:581
81520rcu_preempt10558-21apt-get20:59:440
81520rcu_preempt0-21swapper/020:56:310
81520rcu_preempt0-21swapper/019:49:150
81480rcu_preempt4029-21users20:30:010
81480rcu_preempt19162-21diskstats19:24:490
81480rcu_preempt19162-21diskstats19:24:490
81470rcu_preempt4467-21fw_conntrack20:34:520
81470rcu_preempt23770-21users19:40:020
81450rcu_preempt26301-21users19:50:000
147950420irq/31-eth0-tx-0-21swapper/119:59:511
81330rcu_preempt3-21ksoftirqd/021:09:570
89450320irq/17-ehci_hcd7272-21wc20:44:540
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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