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2025-12-23 - 04:10
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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 Tue Dec 23, 2025 00:43:25)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81850rcu_preempt12737-21ssh22:14:390
81750rcu_preempt8108-21python19:05:491
81740rcu_preempt9240-21ps19:10:471
89850730irq/17-ehci_hcd3-21ksoftirqd/021:25:360
81700rcu_preempt0-21swapper/020:50:400
81690rcu_preempt9058-21sh22:07:480
81690rcu_preempt20037-21sh21:31:490
81690rcu_preempt0-21swapper/023:55:460
81690rcu_preempt0-21swapper/021:39:070
81690rcu_preempt0-21swapper/019:15:430
89850680irq/17-ehci_hcd945-21usb-storage22:58:091
81680rcu_preempt0-21swapper/122:25:441
81670rcu_preempt8352-21users22:05:511
81670rcu_preempt6305-21diskmemload22:00:391
81670rcu_preempt19886-21memory22:25:450
81670rcu_preempt0-21swapper/122:16:111
81670rcu_preempt0-21swapper/121:44:101
81670rcu_preempt0-21swapper/023:24:090
81670rcu_preempt0-21swapper/023:15:410
81660rcu_preempt27845-21diskstats21:45:390
81660rcu_preempt27454-21/usr/sbin/munin20:25:471
81660rcu_preempt0-21swapper/122:11:231
81660rcu_preempt0-21swapper/120:05:421
81660rcu_preempt0-21swapper/120:05:421
81660rcu_preempt0-21swapper/100:33:131
81660rcu_preempt0-21swapper/000:19:570
89850650irq/17-ehci_hcd1312-21ssh22:49:121
81650rcu_preempt25119-21cut21:40:410
81650rcu_preempt0-21swapper/122:41:101
81650rcu_preempt0-21swapper/120:53:331
81650rcu_preempt0-21swapper/100:03:451
147750650irq/29-eth0-rx-6305-21diskmemload22:55:520
81640rcu_preempt29904-21df_abs00:30:390
81640rcu_preempt21780-21needreboot20:00:451
81640rcu_preempt13757-21ssh23:10:150
81640rcu_preempt0-21swapper/121:20:311
81640rcu_preempt0-21swapper/100:26:401
81640rcu_preempt0-21swapper/100:23:131
81640rcu_preempt0-21swapper/021:16:280
81630rcu_preempt8081-21cpu23:00:381
81630rcu_preempt7386-21processes21:10:470
81630rcu_preempt19761-21date19:55:241
81630rcu_preempt0-21swapper/021:55:490
81630rcu_preempt0-21swapper/019:05:470
81620rcu_preempt5755-21apt-get23:50:370
81620rcu_preempt25437-21cpuspeed_turbos22:35:361
81620rcu_preempt24618-21ssh00:20:510
81620rcu_preempt0-21swapper/123:56:021
81620rcu_preempt0-21swapper/121:50:511
81620rcu_preempt0-21swapper/121:29:331
81610rcu_preempt3554-21ssh22:51:551
81610rcu_preempt23658-21ssh23:25:430
81610rcu_preempt23418-21idleruntime23:25:401
81610rcu_preempt20983-21ssh23:20:501
81610rcu_preempt0-21swapper/123:50:511
81610rcu_preempt0-21swapper/121:17:511
81610rcu_preempt0-21swapper/120:49:391
81600rcu_preempt8511-21ssh21:13:091
81600rcu_preempt20443-21ssh21:32:581
81600rcu_preempt18712-21ssh23:17:181
81600rcu_preempt13337-21ssh00:01:550
81600rcu_preempt0-21swapper/123:45:471
81600rcu_preempt0-21swapper/123:35:421
81600rcu_preempt0-21swapper/123:10:511
81600rcu_preempt0-21swapper/121:00:441
81600rcu_preempt0-21swapper/120:30:421
81600rcu_preempt0-21swapper/100:05:471
81600rcu_preempt0-21swapper/021:50:500
81600rcu_preempt0-21swapper/020:49:020
81590rcu_preempt28288-21ssh23:33:391
81590rcu_preempt2709-21sshd00:39:160
81590rcu_preempt26075-21sendmail-msp20:20:241
81590rcu_preempt23755-21ssh22:31:361
81590rcu_preempt16521-21df_inode22:20:410
81590rcu_preempt15577-21ntp_states00:05:470
81590rcu_preempt0-21swapper/122:21:361
81590rcu_preempt0-21swapper/121:55:461
81590rcu_preempt0-21swapper/121:37:511
81580rcu_preempt14329-21fw_conntrack23:10:420
81580rcu_preempt0-21swapper/123:45:011
81580rcu_preempt0-21swapper/119:55:441
81580rcu_preempt0-21swapper/022:34:350
81580rcu_preempt0-21swapper/019:10:410
81570rcu_preempt4547-21ssh23:47:380
81570rcu_preempt3926-21ssh22:52:580
81570rcu_preempt29488-21ssh23:35:420
81570rcu_preempt22872-21ssh00:18:431
81570rcu_preempt2032-21ssh00:37:221
81570rcu_preempt19234-21ssh00:12:021
81570rcu_preempt17291-21latency_hist19:45:241
81570rcu_preempt15969-21ssh22:20:160
81570rcu_preempt0-21swapper/121:47:281
81570rcu_preempt0-21swapper/022:37:170
81570rcu_preempt0-21swapper/022:00:320
81570rcu_preempt0-21swapper/021:24:280
81560rcu_preempt21095-21/usr/sbin/munin20:00:500
81560rcu_preempt0-21swapper/123:10:061
81560rcu_preempt0-21swapper/021:00:460
81560rcu_preempt0-21swapper/000:29:480
89850550irq/17-ehci_hcd945-21usb-storage20:35:421
81550rcu_preempt9043-21python23:00:500
81550rcu_preempt28284-21ssh23:33:390
81550rcu_preempt1139-21ssh23:41:360
81550rcu_preempt11151-21df19:20:391
81550rcu_preempt0-21swapper/120:44:181
81550rcu_preempt0-21swapper/119:42:001
81550rcu_preempt0-21swapper/119:34:541
81550rcu_preempt0-21swapper/020:44:540
81550rcu_preempt0-21swapper/020:15:360
81550rcu_preempt0-21swapper/000:11:040
81540rcu_preempt858-21ssh22:48:000
81540rcu_preempt30814-21ssh22:44:290
81540rcu_preempt15084-21if_can019:35:420
81540rcu_preempt0-21swapper/121:08:031
81540rcu_preempt0-21swapper/119:35:431
81540rcu_preempt0-21swapper/119:29:501
81530rcu_preempt0-21swapper/021:05:320
81530rcu_preempt0-21swapper/020:55:240
81530rcu_preempt0-21swapper/019:44:320
81530rcu_preempt0-21swapper/019:30:390
81520rcu_preempt0-21swapper/119:20:171
81520rcu_preempt0-21swapper/020:37:320
81520rcu_preempt0-21swapper/020:25:320
81510rcu_preempt0-21swapper/020:11:320
81510rcu_preempt0-21swapper/020:07:240
81510rcu_preempt0-21swapper/020:07:240
81500rcu_preempt13381-21munin-run19:30:230
81490rcu_preempt0-21swapper/120:13:331
81480rcu_preempt26774-21memory20:20:430
81470rcu_preempt26202-21apt-get20:20:351
81450rcu_preempt18035-21ntp_states19:45:440
81450rcu_preempt11279-21fw_forwarded_lo19:20:410
81430rcu_preempt2919-21/usr/sbin/munin20:55:421
81430rcu_preempt19476-21/usr/sbin/munin19:50:480
89850400irq/17-ehci_hcd945-21usb-storage19:55:460
89850380irq/17-ehci_hcd945-21usb-storage20:32:400
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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