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2025-06-16 - 15:10
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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 Mon Jun 16, 2025 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81790rcu_preempt1030-21df_abs20:41:041
81790rcu_preempt0-21swapper/119:21:141
81780rcu_preempt19-21ksoftirqd/123:39:441
81780rcu_preempt19-21ksoftirqd/123:39:441
81770rcu_preempt19-21ksoftirqd/123:28:051
81760rcu_preempt0-21swapper/119:11:141
81760rcu_preempt0-21swapper/000:19:220
81750rcu_preempt0-21swapper/121:11:031
81740rcu_preempt1669-1kworker/1:1H23:02:541
81740rcu_preempt0-21swapper/121:55:401
81740rcu_preempt0-21swapper/121:30:131
81730rcu_preempt5227-21grep00:05:481
81730rcu_preempt15865-21munin-run00:25:471
81720rcu_preempt0-21swapper/019:16:080
81710rcu_preempt0-21swapper/121:16:041
81710rcu_preempt0-21swapper/022:33:340
81710rcu_preempt0-21swapper/021:41:150
81700rcu_preempt19-21ksoftirqd/123:18:171
81700rcu_preempt0-21swapper/122:01:361
81700rcu_preempt0-21swapper/121:01:071
81700rcu_preempt0-21swapper/022:02:560
81700rcu_preempt0-21swapper/021:37:170
81690rcu_preempt9527-21diskmemload00:30:471
81690rcu_preempt0-21swapper/023:14:310
81690rcu_preempt0-21swapper/020:01:120
89050670irq/17-ehci_hcd945-21usb-storage00:06:280
81670rcu_preempt15680-21munin-run22:25:480
81660rcu_preempt17950-21ssh21:30:310
81660rcu_preempt0-21swapper/022:45:460
81650rcu_preempt4505-21munin-run20:55:470
81650rcu_preempt26879-21apt-get23:46:031
81650rcu_preempt0-21swapper/023:36:340
81650rcu_preempt0-21swapper/023:36:340
81650rcu_preempt0-21swapper/000:15:430
81640rcu_preempt25060-21sendmail_mailtr23:41:200
81640rcu_preempt19-21ksoftirqd/123:33:251
81640rcu_preempt19-21ksoftirqd/100:45:321
81630rcu_preempt0-21swapper/023:29:370
81630rcu_preempt0-21swapper/023:06:060
81620rcu_preempt3-21ksoftirqd/019:11:110
81620rcu_preempt0-21swapper/021:59:270
89850610irq/17-ehci_hcd0-21swapper/120:57:031
81610rcu_preempt14101-21ssh00:21:130
81610rcu_preempt0-21swapper/022:26:080
81610rcu_preempt0-21swapper/021:51:150
81610rcu_preempt0-21swapper/021:32:530
81610rcu_preempt0-21swapper/019:49:210
81600rcu_preempt0-21swapper/023:21:110
81590rcu_preempt30684-21ssh22:51:230
81590rcu_preempt12712-21ssh21:21:020
81590rcu_preempt10888-21ssh21:16:180
81590rcu_preempt0-21swapper/022:16:110
89850580irq/17-ehci_hcd945-21usb-storage22:06:131
89850580irq/17-ehci_hcd1675-21ssh21:59:331
81580rcu_preempt20729-21ssh00:34:050
81580rcu_preempt19-21ksoftirqd/100:01:051
81580rcu_preempt0-21swapper/023:47:410
81580rcu_preempt0-21swapper/022:56:120
81580rcu_preempt0-21swapper/021:46:070
89850570irq/17-ehci_hcd0-21swapper/000:40:260
81570rcu_preempt23460-21ssh22:39:260
81570rcu_preempt0-21swapper/022:49:110
81570rcu_preempt0-21swapper/022:15:110
81570rcu_preempt0-21swapper/020:11:060
81570rcu_preempt0-21swapper/019:36:030
81570rcu_preempt0-21swapper/000:42:280
81570rcu_preempt0-21swapper/000:02:200
89850560irq/17-ehci_hcd945-21usb-storage22:31:591
81560rcu_preempt3205-21ntpdc23:01:140
81560rcu_preempt0-21swapper/020:07:370
81560rcu_preempt0-21swapper/019:29:170
81560rcu_preempt0-21swapper/019:29:170
81560rcu_preempt0-21swapper/000:28:150
89850550irq/17-ehci_hcd945-21usb-storage22:27:451
89850550irq/17-ehci_hcd945-21usb-storage22:16:171
89850550irq/17-ehci_hcd945-21usb-storage19:31:081
81550rcu_preempt20694-21ssh23:33:530
81550rcu_preempt20130-21ssh21:34:061
81550rcu_preempt0-21swapper/121:39:291
81550rcu_preempt0-21swapper/120:53:451
81550rcu_preempt0-21swapper/119:36:481
81550rcu_preempt0-21swapper/119:28:161
81550rcu_preempt0-21swapper/119:28:161
81550rcu_preempt0-21swapper/023:56:030
81550rcu_preempt0-21swapper/023:52:050
81550rcu_preempt0-21swapper/023:16:160
81550rcu_preempt0-21swapper/020:56:040
81540rcu_preempt0-21swapper/100:19:591
81540rcu_preempt0-21swapper/022:06:370
81540rcu_preempt0-21swapper/021:01:200
81540rcu_preempt0-21swapper/019:57:190
81540rcu_preempt0-21swapper/019:41:030
151050540irq/28-eth0-rx-0-21swapper/119:46:041
89850530irq/17-ehci_hcd945-21usb-storage00:40:281
81530rcu_preempt0-21swapper/119:57:111
81530rcu_preempt0-21swapper/021:11:080
81530rcu_preempt0-21swapper/021:08:420
81530rcu_preempt0-21swapper/020:47:210
81530rcu_preempt0-21swapper/020:36:110
89850520irq/17-ehci_hcd945-21usb-storage20:13:511
81520rcu_preempt0-21swapper/020:26:200
151050520irq/28-eth0-rx-19-21ksoftirqd/119:16:021
11675995248cyclictest945-21usb-storage19:20:480
11675995247cyclictest945-21usb-storage20:24:580
81510rcu_preempt0-21swapper/123:07:201
81510rcu_preempt0-21swapper/020:34:440
11676995148cyclictest945-21usb-storage22:52:221
11675995148cyclictest945-21usb-storage20:15:470
81490rcu_preempt19-21ksoftirqd/100:32:391
11675994946cyclictest945-21usb-storage19:54:350
81480rcu_preempt26484-21/usr/sbin/munin21:46:101
81480rcu_preempt19-21ksoftirqd/121:21:041
151350480irq/31-eth0-tx-989-21users22:56:211
11676994845cyclictest945-21usb-storage22:36:031
81470rcu_preempt19-21ksoftirqd/123:41:511
81470rcu_preempt19-21ksoftirqd/122:45:301
81470rcu_preempt19-21ksoftirqd/121:44:081
81470rcu_preempt0-21swapper/122:48:101
151050470irq/28-eth0-rx-19-21ksoftirqd/123:20:571
11676994745cyclictest181ktimersoftd/123:15:241
11676994644cyclictest181ktimersoftd/122:24:121
11675994643cyclictest945-21usb-storage20:41:110
11675994643cyclictest945-21usb-storage19:32:590
81450rcu_preempt19-21ksoftirqd/100:11:151
81450rcu_preempt0-21swapper/119:45:111
151050450irq/28-eth0-rx-0-21swapper/120:48:581
151350440irq/31-eth0-tx-30228-21memory23:51:131
151350430irq/31-eth0-tx-25487-21kworker/1:020:18:081
151350420irq/31-eth0-tx-0-21swapper/120:26:101
151350410irq/31-eth0-tx-8104-21kworker/1:120:07:001
11676994137cyclictest8190-21ssh22:11:081
151350400irq/31-eth0-tx-8104-21kworker/1:120:04:061
151350400irq/31-eth0-tx-30990-21kworker/1:023:56:071
151350400irq/31-eth0-tx-27991-21kworker/1:120:24:521
151350390irq/31-eth0-tx-27991-21kworker/1:120:35:581
151350380irq/31-eth0-tx-27991-21kworker/1:120:31:021
151350370irq/31-eth0-tx-8104-21kworker/1:119:53:241
151350360irq/31-eth0-tx-19-21ksoftirqd/121:06:021
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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