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2026-05-10 - 09:57
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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 Sun May 10, 2026 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81740rcu_preempt28682-21ssh21:15:271
81720rcu_preempt8576-21ssh21:36:121
81720rcu_preempt21602-21ssh22:58:570
81710rcu_preempt20207-21sh23:55:361
81710rcu_preempt18458-21sh21:55:101
81710rcu_preempt0-21swapper/023:51:120
81710rcu_preempt0-21swapper/022:16:190
81710rcu_preempt0-21swapper/019:46:070
81700rcu_preempt25883-21diskmemload22:13:481
81700rcu_preempt25762-21sh22:06:490
81700rcu_preempt21007-21ssh21:59:491
81700rcu_preempt0-21swapper/122:32:581
81700rcu_preempt0-21swapper/000:12:500
81690rcu_preempt357-21ssh23:19:330
81690rcu_preempt0-21swapper/121:45:581
81680rcu_preempt15025-21apt-get23:46:050
81680rcu_preempt13190-21munin-run21:45:530
81680rcu_preempt0-21swapper/123:33:561
81680rcu_preempt0-21swapper/122:01:131
81680rcu_preempt0-21swapper/023:44:460
81680rcu_preempt0-21swapper/023:44:460
81680rcu_preempt0-21swapper/022:50:460
81670rcu_preempt17313-21ssh23:50:081
81670rcu_preempt0-21swapper/123:25:491
81670rcu_preempt0-21swapper/123:07:121
81670rcu_preempt0-21swapper/122:47:021
81670rcu_preempt0-21swapper/121:43:021
81670rcu_preempt0-21swapper/121:21:441
81670rcu_preempt0-21swapper/121:16:411
81670rcu_preempt0-21swapper/119:39:261
81670rcu_preempt0-21swapper/023:11:050
81670rcu_preempt0-21swapper/023:08:140
81670rcu_preempt0-21swapper/022:28:050
81670rcu_preempt0-21swapper/021:20:060
81670rcu_preempt0-21swapper/019:39:000
81660rcu_preempt3049-21ssh22:26:041
81660rcu_preempt22389-21apt-get23:01:030
81660rcu_preempt16905-21timerandwakeup20:31:181
81660rcu_preempt0-21swapper/123:37:041
81660rcu_preempt0-21swapper/122:53:211
81660rcu_preempt0-21swapper/122:16:121
81660rcu_preempt0-21swapper/000:29:320
89950650irq/17-ehci_hcd0-21swapper/121:29:431
81650rcu_preempt31427-21ps00:16:171
81650rcu_preempt27854-21cron19:10:510
81650rcu_preempt0-21swapper/123:41:581
81650rcu_preempt0-21swapper/123:41:581
81650rcu_preempt0-21swapper/121:06:141
81640rcu_preempt1053-21ntp_states22:21:161
81640rcu_preempt0-21swapper/120:52:501
81640rcu_preempt0-21swapper/119:10:521
81630rcu_preempt889-21latency_hist23:20:531
81630rcu_preempt2262-21ssh00:21:531
81630rcu_preempt0-21swapper/100:01:011
81630rcu_preempt0-21swapper/023:56:540
81630rcu_preempt0-21swapper/022:51:160
81630rcu_preempt0-21swapper/022:01:170
81630rcu_preempt0-21swapper/019:51:160
81630rcu_preempt0-21swapper/000:21:130
81630rcu_preempt0-21swapper/000:04:090
89950620irq/17-ehci_hcd0-21swapper/122:44:161
81620rcu_preempt6651-21ssh21:32:301
81620rcu_preempt30344-21ssh00:15:371
81620rcu_preempt0-21swapper/123:26:171
81620rcu_preempt0-21swapper/122:56:081
81620rcu_preempt0-21swapper/120:56:131
81620rcu_preempt0-21swapper/100:06:191
81610rcu_preempt5326-21kworker/0:222:44:010
81610rcu_preempt0-21swapper/123:05:191
81610rcu_preempt0-21swapper/122:39:351
81610rcu_preempt0-21swapper/120:26:121
81610rcu_preempt0-21swapper/119:56:091
81610rcu_preempt0-21swapper/119:07:281
81610rcu_preempt0-21swapper/020:11:050
146450610irq/29-eth0-rx-5326-21kworker/0:222:36:310
81600rcu_preempt8625-21ssh00:34:161
81600rcu_preempt7952-21sendmail_mailtr19:56:170
81600rcu_preempt14523-21munin-run20:25:520
81600rcu_preempt0-21swapper/123:11:161
81600rcu_preempt0-21swapper/120:16:131
81600rcu_preempt0-21swapper/119:46:061
81600rcu_preempt0-21swapper/023:21:120
81600rcu_preempt0-21swapper/021:06:040
81600rcu_preempt0-21swapper/020:06:060
81600rcu_preempt0-21swapper/019:16:040
81600rcu_preempt0-21swapper/000:38:040
81590rcu_preempt7210-21ssh21:34:150
81590rcu_preempt5666-21ssh00:28:241
81590rcu_preempt24379-21ssh22:05:541
81590rcu_preempt0-21swapper/120:44:141
81590rcu_preempt0-21swapper/023:40:160
81590rcu_preempt0-21swapper/022:21:060
81590rcu_preempt0-21swapper/000:33:290
81590rcu_preempt0-21swapper/000:09:230
81580rcu_preempt13668-21ssh21:46:090
81580rcu_preempt10040-21ntpq00:36:161
81580rcu_preempt0-21swapper/120:46:021
81580rcu_preempt0-21swapper/120:24:141
81580rcu_preempt0-21swapper/021:56:140
81580rcu_preempt0-21swapper/019:34:280
81570rcu_preempt7001-21ssh22:31:340
81570rcu_preempt3405-21sed19:41:061
81570rcu_preempt32536-21ssh00:19:030
81570rcu_preempt27455-21ssh21:11:550
81570rcu_preempt1078-21ssh21:22:320
81570rcu_preempt0-21swapper/123:56:241
81570rcu_preempt0-21swapper/120:06:441
81570rcu_preempt0-21swapper/119:51:181
81570rcu_preempt0-21swapper/119:34:141
81570rcu_preempt0-21swapper/119:16:131
81570rcu_preempt0-21swapper/023:31:140
81570rcu_preempt0-21swapper/022:12:560
81570rcu_preempt0-21swapper/020:46:360
81570rcu_preempt0-21swapper/020:05:530
81570rcu_preempt0-21swapper/019:26:030
81550rcu_preempt9931-21ssh21:39:120
81550rcu_preempt0-21swapper/120:36:061
81550rcu_preempt0-21swapper/120:04:191
81550rcu_preempt0-21swapper/119:25:061
81550rcu_preempt0-21swapper/020:51:080
81550rcu_preempt0-21swapper/020:41:330
81550rcu_preempt0-21swapper/019:21:160
81540rcu_preempt0-21swapper/023:27:180
81540rcu_preempt0-21swapper/021:52:420
81530rcu_preempt3429-21ssh21:26:350
81530rcu_preempt13255-21munin-run20:20:530
81530rcu_preempt0-21swapper/020:38:290
81520rcu_preempt11003-21df20:11:051
81520rcu_preempt0-21swapper/019:11:210
27900995249cyclictest945-21usb-storage19:26:111
81490rcu_preempt0-21swapper/020:32:140
81490rcu_preempt0-21swapper/019:45:160
27899994945cyclictest945-21usb-storage21:01:050
81470rcu_preempt22945-21ntp_states20:56:160
81460rcu_preempt23767-21fw_forwarded_lo21:01:091
81430rcu_preempt14824-21sed20:26:070
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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