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2025-11-19 - 13:06
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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 376 highest latencies:
System rackcslot3.osadl.org (updated Wed Nov 19, 2025 00:43:25)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
811170rcu_preempt0-21swapper/022:27:050
81790rcu_preempt19-21ksoftirqd/121:44:581
81740rcu_preempt0-21swapper/122:30:141
81740rcu_preempt0-21swapper/119:07:191
81740rcu_preempt0-21swapper/022:05:200
81720rcu_preempt20196-21if_eth123:25:151
81700rcu_preempt0-21swapper/022:55:090
81690rcu_preempt0-21swapper/121:00:101
81690rcu_preempt0-21swapper/022:53:280
81680rcu_preempt31585-1kworker/0:1H23:49:340
81680rcu_preempt2283-21sh23:52:170
81680rcu_preempt12909-21sh23:10:381
81680rcu_preempt11084-21diskmemload23:56:030
81670rcu_preempt20217-21sshd00:27:291
81670rcu_preempt15644-21ssh00:19:581
81670rcu_preempt0-21swapper/123:30:101
81670rcu_preempt0-21swapper/122:25:161
81670rcu_preempt0-21swapper/100:34:591
81660rcu_preempt27581-21ssh22:39:261
81660rcu_preempt20190-21ssh21:25:150
81660rcu_preempt18467-21diskmemload21:21:140
81660rcu_preempt11084-21diskmemload21:40:441
81660rcu_preempt0-21swapper/123:16:251
81660rcu_preempt0-21swapper/122:01:371
81660rcu_preempt0-21swapper/121:51:391
81660rcu_preempt0-21swapper/121:30:111
81660rcu_preempt0-21swapper/119:45:221
81660rcu_preempt0-21swapper/100:15:211
81650rcu_preempt19-21ksoftirqd/122:16:331
81650rcu_preempt19-21ksoftirqd/122:16:331
81650rcu_preempt0-21swapper/123:50:351
81650rcu_preempt0-21swapper/122:40:221
81650rcu_preempt0-21swapper/100:01:011
81650rcu_preempt0-21swapper/021:46:180
81640rcu_preempt25255-21fw_conntrack23:35:141
81640rcu_preempt0-21swapper/123:40:571
81640rcu_preempt0-21swapper/122:51:591
81640rcu_preempt0-21swapper/023:15:430
81630rcu_preempt13622-21if_err_wlan019:10:121
81630rcu_preempt12415-21ntpdc22:10:181
81630rcu_preempt0-21swapper/121:55:321
81630rcu_preempt0-21swapper/019:27:030
81620rcu_preempt5561-21ssh23:59:491
81620rcu_preempt2235-21snmpd19:05:550
81620rcu_preempt0-21swapper/123:09:161
81620rcu_preempt0-21swapper/122:45:041
81620rcu_preempt0-21swapper/121:15:241
81620rcu_preempt0-21swapper/120:27:551
81620rcu_preempt0-21swapper/022:45:240
81610rcu_preempt0-21swapper/122:06:351
81610rcu_preempt0-21swapper/100:30:541
81610rcu_preempt0-21swapper/100:08:451
81610rcu_preempt0-21swapper/021:40:170
81610rcu_preempt0-21swapper/020:24:250
81600rcu_preempt5277-21ssh22:57:151
81600rcu_preempt18369-21ssh21:20:551
81600rcu_preempt0-21swapper/121:13:351
81600rcu_preempt0-21swapper/119:20:141
81600rcu_preempt0-21swapper/023:10:270
81600rcu_preempt0-21swapper/023:09:470
81590rcu_preempt3-21ksoftirqd/000:35:580
81590rcu_preempt19857-21ssh21:25:111
81590rcu_preempt0-21swapper/123:46:071
81590rcu_preempt0-21swapper/123:21:141
81590rcu_preempt0-21swapper/122:20:221
81590rcu_preempt0-21swapper/121:39:151
81590rcu_preempt0-21swapper/119:50:141
81590rcu_preempt0-21swapper/100:14:071
81590rcu_preempt0-21swapper/021:30:110
151450590irq/28-eth0-rx-41ktimersoftd/022:13:450
90050580irq/17-ehci_hcd0-21swapper/119:55:131
81580rcu_preempt17706-21ssh00:23:040
81580rcu_preempt0-21swapper/120:15:121
81580rcu_preempt0-21swapper/119:30:161
81580rcu_preempt0-21swapper/023:33:490
81580rcu_preempt0-21swapper/022:44:230
81580rcu_preempt0-21swapper/020:40:220
81580rcu_preempt0-21swapper/019:50:160
81580rcu_preempt0-21swapper/000:00:150
81570rcu_preempt7710-21ssh23:01:351
81570rcu_preempt0-21swapper/120:52:291
81570rcu_preempt0-21swapper/120:23:501
81570rcu_preempt0-21swapper/022:35:530
81570rcu_preempt0-21swapper/000:30:110
81560rcu_preempt5836-21python20:45:211
81560rcu_preempt20680-21users19:35:221
81560rcu_preempt17565-21irqstats19:25:151
81560rcu_preempt0-21swapper/120:30:141
81560rcu_preempt0-21swapper/119:18:271
81560rcu_preempt0-21swapper/023:28:500
81560rcu_preempt0-21swapper/023:02:370
81560rcu_preempt0-21swapper/021:00:580
81560rcu_preempt0-21swapper/020:19:100
81560rcu_preempt0-21swapper/019:55:090
81560rcu_preempt0-21swapper/000:05:200
81550rcu_preempt3104-21ssh21:53:590
81550rcu_preempt26731-21ssh21:36:520
81550rcu_preempt20863-21ssh00:29:410
81550rcu_preempt0-21swapper/120:06:271
81550rcu_preempt0-21swapper/120:00:371
81550rcu_preempt0-21swapper/022:31:270
81550rcu_preempt0-21swapper/021:16:290
81550rcu_preempt0-21swapper/019:10:180
81540rcu_preempt7942-21ssh22:02:090
81540rcu_preempt5539-21ssh21:58:060
81540rcu_preempt18967-21ssh23:23:100
81540rcu_preempt15219-21ssh00:19:070
81530rcu_preempt19114-21ssh22:23:220
81530rcu_preempt11792-21ssh00:10:330
81530rcu_preempt0-21swapper/121:06:271
81530rcu_preempt0-21swapper/023:41:280
81530rcu_preempt0-21swapper/023:35:570
81530rcu_preempt0-21swapper/021:13:260
81530rcu_preempt0-21swapper/020:58:420
81530rcu_preempt0-21swapper/020:50:180
81530rcu_preempt0-21swapper/020:45:300
81530rcu_preempt0-21swapper/019:20:130
81530rcu_preempt0-21swapper/019:18:300
81520rcu_preempt2233-21munin-run20:34:540
81520rcu_preempt21142-21fw_conntrack19:40:111
81520rcu_preempt0-21swapper/120:39:011
81520rcu_preempt0-21swapper/022:15:500
81520rcu_preempt0-21swapper/022:15:500
81520rcu_preempt0-21swapper/020:38:420
81510rcu_preempt0-21swapper/020:07:010
81510rcu_preempt0-21swapper/019:45:150
81500rcu_preempt0-21swapper/120:10:481
81500rcu_preempt0-21swapper/019:33:530
81490rcu_preempt0-21swapper/019:42:310
13099994946cyclictest946-21usb-storage20:10:160
81480rcu_preempt0-21swapper/021:07:410
81470rcu_preempt3787-21expr20:40:131
13099994644cyclictest946-21usb-storage20:25:110
13099994038cyclictest946-21usb-storage19:35:080
90050350irq/17-ehci_hcd0-21swapper/020:04:400
151950310irq/31-eth0-tx-3487-21kworker/1:020:55:061
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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