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2025-12-01 - 12:44
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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 Mon Dec 01, 2025 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
90050790irq/17-ehci_hcd946-21usb-storage19:06:281
81730rcu_preempt28006-21ntp_states22:45:100
81710rcu_preempt26486-21ssh21:40:281
81700rcu_preempt0-21swapper/021:10:080
81700rcu_preempt0-21swapper/000:07:180
81690rcu_preempt0-21swapper/000:10:030
81680rcu_preempt6950-21head21:00:080
81680rcu_preempt6404-21fw_conntrack22:05:040
81680rcu_preempt23654-21ssh21:35:170
81680rcu_preempt0-21swapper/023:45:400
81680rcu_preempt0-21swapper/023:00:530
81670rcu_preempt0-21swapper/123:08:101
81660rcu_preempt8644-21if_eth023:10:061
81660rcu_preempt29279-21/usr/sbin/munin23:50:141
81660rcu_preempt0-21swapper/123:23:231
81660rcu_preempt0-21swapper/122:15:101
151850660irq/30-eth0-tx-12867-21ssh00:22:460
81650rcu_preempt30713-21df_abs21:50:020
81650rcu_preempt0-21swapper/123:16:541
81650rcu_preempt0-21swapper/121:32:111
81650rcu_preempt0-21swapper/023:06:110
81640rcu_preempt17430-21ssh21:25:040
81640rcu_preempt15499-21ssh23:23:410
81640rcu_preempt0-21swapper/123:55:251
81640rcu_preempt0-21swapper/121:59:241
81640rcu_preempt0-21swapper/120:05:291
81640rcu_preempt0-21swapper/100:25:011
81640rcu_preempt0-21swapper/020:35:080
151450640irq/28-eth0-rx-181ktimersoftd/121:11:381
81630rcu_preempt23504-21sh22:36:210
81630rcu_preempt16236-21munin-run00:29:470
81630rcu_preempt10637-21latency_hist23:14:460
81630rcu_preempt0-21swapper/123:25:101
81630rcu_preempt0-21swapper/122:55:221
81630rcu_preempt0-21swapper/122:25:341
81630rcu_preempt0-21swapper/121:49:111
81630rcu_preempt0-21swapper/100:17:531
81630rcu_preempt0-21swapper/100:07:491
81620rcu_preempt0-21swapper/123:42:271
81620rcu_preempt0-21swapper/122:08:461
81620rcu_preempt0-21swapper/019:35:010
81610rcu_preempt28897-21ssh23:49:071
81610rcu_preempt21954-21ssh22:34:491
81610rcu_preempt19539-21munin-run19:44:471
81610rcu_preempt19319-21ssh22:29:571
81610rcu_preempt0-21swapper/122:48:301
81610rcu_preempt0-21swapper/122:03:251
81610rcu_preempt0-21swapper/121:35:491
81610rcu_preempt0-21swapper/120:55:041
81610rcu_preempt0-21swapper/020:30:110
81610rcu_preempt0-21swapper/020:20:140
81610rcu_preempt0-21swapper/000:16:120
81600rcu_preempt0-21swapper/123:04:191
81600rcu_preempt0-21swapper/122:20:031
81600rcu_preempt0-21swapper/122:20:031
81600rcu_preempt0-21swapper/121:25:121
81600rcu_preempt0-21swapper/121:18:471
81600rcu_preempt0-21swapper/100:10:481
81600rcu_preempt0-21swapper/100:04:261
81600rcu_preempt0-21swapper/022:31:240
81600rcu_preempt0-21swapper/019:05:090
81590rcu_preempt31699-21ssh22:52:211
81590rcu_preempt14016-21strings19:20:101
81590rcu_preempt11029-21ssh22:13:511
81590rcu_preempt0-21swapper/121:50:081
81590rcu_preempt0-21swapper/121:20:021
81590rcu_preempt0-21swapper/120:36:061
81590rcu_preempt0-21swapper/100:20:341
81590rcu_preempt0-21swapper/023:50:080
81590rcu_preempt0-21swapper/022:20:080
81590rcu_preempt0-21swapper/022:20:080
81590rcu_preempt0-21swapper/022:11:290
81590rcu_preempt0-21swapper/020:55:150
81590rcu_preempt0-21swapper/019:50:040
81590rcu_preempt0-21swapper/019:20:130
81590rcu_preempt0-21swapper/000:00:040
81580rcu_preempt4850-21ssh22:00:530
81580rcu_preempt26000-21ssh23:43:390
81580rcu_preempt25776-21timerwakeupswit22:40:141
81580rcu_preempt22119-21ssh21:34:200
81580rcu_preempt20266-21ssh00:35:191
81580rcu_preempt18213-21ssh00:32:221
81580rcu_preempt13283-21ssh22:17:290
81580rcu_preempt0-21swapper/123:34:121
81580rcu_preempt0-21swapper/120:20:021
81580rcu_preempt0-21swapper/120:15:101
81580rcu_preempt0-21swapper/023:14:110
81580rcu_preempt0-21swapper/022:59:310
81580rcu_preempt0-21swapper/021:47:210
81580rcu_preempt0-21swapper/020:10:090
81570rcu_preempt27469-21ssh21:44:000
81570rcu_preempt16130-21ssh21:21:500
81570rcu_preempt0-21swapper/123:36:371
81570rcu_preempt0-21swapper/119:38:271
81570rcu_preempt0-21swapper/023:32:560
81570rcu_preempt0-21swapper/021:17:080
81570rcu_preempt0-21swapper/020:50:100
81570rcu_preempt0-21swapper/019:10:030
81570rcu_preempt0-21swapper/000:30:060
151950570irq/31-eth0-tx-8681-21diskmemload23:36:040
81560rcu_preempt0-21swapper/121:05:031
81560rcu_preempt0-21swapper/119:15:131
81560rcu_preempt0-21swapper/022:27:450
81560rcu_preempt0-21swapper/000:36:550
81550rcu_preempt24150-21awk20:00:081
81550rcu_preempt2298-21sshd21:56:080
81550rcu_preempt17523-21ssh23:26:250
81550rcu_preempt1615-21ssh23:58:420
81550rcu_preempt0-21swapper/120:52:381
81550rcu_preempt0-21swapper/120:30:011
81550rcu_preempt0-21swapper/120:10:391
81550rcu_preempt0-21swapper/119:54:111
81550rcu_preempt0-21swapper/119:30:291
81550rcu_preempt0-21swapper/020:05:060
81540rcu_preempt0-21swapper/119:45:491
81540rcu_preempt0-21swapper/022:50:370
81540rcu_preempt0-21swapper/022:40:090
81530rcu_preempt0-21swapper/120:49:371
81530rcu_preempt0-21swapper/119:24:561
81530rcu_preempt0-21swapper/021:07:550
90050520irq/17-ehci_hcd946-21usb-storage20:43:371
81520rcu_preempt28367-21apt20:19:470
81520rcu_preempt0-21swapper/119:55:041
81510rcu_preempt3486-21awk20:45:130
81510rcu_preempt0-21swapper/020:29:250
81510rcu_preempt0-21swapper/020:01:290
81510rcu_preempt0-21swapper/019:15:320
81500rcu_preempt2235-21snmpd19:56:240
81490rcu_preempt0-21swapper/019:45:270
81460rcu_preempt7320-21date21:00:121
1069599441cyclictest0-21swapper/019:44:340
81410rcu_preempt0-21swapper/120:28:501
90050360irq/17-ehci_hcd0-21swapper/019:27:460
151950360irq/31-eth0-tx-16351-21/usr/sbin/munin19:30:060
151950340irq/31-eth0-tx-10639-21kworker/1:019:10:221
151850340irq/30-eth0-tx-0-21swapper/020:40:060
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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