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2026-06-12 - 23:58
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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 all highest latencies:
System rackcslot3.osadl.org (updated Fri Jun 12, 2026 12:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
89950820irq/17-ehci_hcd945-21usb-storage07:18:151
81820rcu_preempt12146-21ps09:59:061
81780rcu_preempt23482-21sh12:21:041
81780rcu_preempt0-21swapper/107:34:031
81770rcu_preempt18723-21diskmemload12:28:021
89550760irq/17-ehci_hcd12806-21ssh11:00:260
81760rcu_preempt0-21swapper/112:14:431
81740rcu_preempt0-21swapper/112:04:041
146250740irq/28-eth0-rx-20017-21/usr/sbin/munin07:09:001
81720rcu_preempt1550-21ssh11:39:220
81720rcu_preempt0-21swapper/112:28:561
81710rcu_preempt4993-21ssh10:46:020
81710rcu_preempt20687-21ssh11:14:400
81710rcu_preempt18723-21diskmemload10:49:030
81710rcu_preempt0-21swapper/110:09:041
81710rcu_preempt0-21swapper/012:32:370
81710rcu_preempt0-21swapper/010:25:130
81700rcu_preempt23743-21ssh12:21:570
81700rcu_preempt19854-21diskstats10:13:561
81700rcu_preempt18723-21diskmemload11:47:110
81700rcu_preempt0-21swapper/011:54:150
81700rcu_preempt0-21swapper/011:11:240
81700rcu_preempt0-21swapper/009:30:350
81690rcu_preempt0-21swapper/109:14:041
81680rcu_preempt29003-21ssh11:30:390
81680rcu_preempt15636-21kworker/0:207:08:560
146650680irq/31-eth0-tx-13807-21kworker/0:110:18:470
81670rcu_preempt21935-21sort09:18:570
146650670irq/31-eth0-tx-32173-21ssh09:37:090
89950660irq/17-ehci_hcd945-21usb-storage09:41:001
81660rcu_preempt23548-21sh11:20:270
81660rcu_preempt19603-21if_wlan012:14:000
81660rcu_preempt0-21swapper/112:33:431
81650rcu_preempt847-21processes12:39:050
89950640irq/17-ehci_hcd945-21usb-storage10:29:081
81640rcu_preempt1889-21ssh10:39:340
81630rcu_preempt927-21munin-run08:03:420
81630rcu_preempt2192-21snmpd11:18:581
81630rcu_preempt0-21swapper/012:34:050
81630rcu_preempt0-21swapper/010:33:580
81630rcu_preempt0-21swapper/009:49:040
89950620irq/17-ehci_hcd945-21usb-storage10:05:041
81620rcu_preempt22144-21cpu07:18:550
81620rcu_preempt22144-21cpu07:18:550
81620rcu_preempt0-21swapper/009:54:410
81620rcu_preempt0-21swapper/009:18:430
81620rcu_preempt0-21swapper/008:14:100
81610rcu_preempt19-21ksoftirqd/110:48:131
81610rcu_preempt0-21swapper/009:48:250
81610rcu_preempt0-21swapper/009:08:540
81610rcu_preempt0-21swapper/009:03:430
81610rcu_preempt0-21swapper/009:03:430
81600rcu_preempt0-21swapper/012:08:550
20747996049cyclictest945-21usb-storage09:22:081
81590rcu_preempt0-21swapper/008:39:020
81590rcu_preempt0-21swapper/007:48:550
81580rcu_preempt19-21ksoftirqd/111:26:061
81580rcu_preempt15420-21ssh10:04:470
81580rcu_preempt0-21swapper/009:59:040
81580rcu_preempt0-21swapper/009:42:080
81580rcu_preempt0-21swapper/007:13:540
20747995848cyclictest945-21usb-storage10:25:311
20747995848cyclictest945-21usb-storage10:22:451
81570rcu_preempt8363-21ssh11:53:491
81570rcu_preempt6186-21ssh10:48:591
81570rcu_preempt31928-21ssh10:35:481
81570rcu_preempt25638-21ssh12:24:220
81570rcu_preempt15582-21ssh11:05:541
81570rcu_preempt0-21swapper/111:59:221
81570rcu_preempt0-21swapper/111:46:081
81570rcu_preempt0-21swapper/110:57:151
81570rcu_preempt0-21swapper/109:54:571
81570rcu_preempt0-21swapper/109:44:501
81570rcu_preempt0-21swapper/109:25:101
81570rcu_preempt0-21swapper/108:58:131
81570rcu_preempt0-21swapper/108:01:521
81570rcu_preempt0-21swapper/107:41:051
81570rcu_preempt0-21swapper/012:08:270
81570rcu_preempt0-21swapper/011:50:570
81570rcu_preempt0-21swapper/011:50:570
81570rcu_preempt0-21swapper/010:53:560
81570rcu_preempt0-21swapper/008:19:080
81570rcu_preempt0-21swapper/007:24:070
81560rcu_preempt29038-21ssh11:30:471
81560rcu_preempt12832-21ssh12:01:010
81560rcu_preempt0-21swapper/112:38:581
81560rcu_preempt0-21swapper/112:09:381
81560rcu_preempt0-21swapper/111:50:321
81560rcu_preempt0-21swapper/111:50:321
81560rcu_preempt0-21swapper/111:40:271
81560rcu_preempt0-21swapper/111:37:151
81560rcu_preempt0-21swapper/111:18:091
81560rcu_preempt0-21swapper/110:40:571
81560rcu_preempt0-21swapper/109:52:391
81560rcu_preempt0-21swapper/109:38:341
81560rcu_preempt0-21swapper/109:29:091
81560rcu_preempt0-21swapper/108:39:021
81560rcu_preempt0-21swapper/108:19:471
81560rcu_preempt0-21swapper/108:15:251
81560rcu_preempt0-21swapper/107:26:301
81560rcu_preempt0-21swapper/007:29:090
20747995653cyclictest945-21usb-storage10:58:541
20747995647cyclictest945-21usb-storage11:11:091
89950550irq/17-ehci_hcd945-21usb-storage11:24:420
89950550irq/17-ehci_hcd945-21usb-storage11:08:340
81550rcu_preempt30020-21ssh10:33:250
81550rcu_preempt2192-21snmpd09:08:291
81550rcu_preempt2192-21snmpd09:08:291
81550rcu_preempt0-21swapper/108:35:431
81550rcu_preempt0-21swapper/108:29:361
81550rcu_preempt0-21swapper/108:27:501
81550rcu_preempt0-21swapper/107:21:481
81550rcu_preempt0-21swapper/107:21:481
81550rcu_preempt0-21swapper/008:55:260
81550rcu_preempt0-21swapper/008:10:060
81540rcu_preempt0-21swapper/108:59:471
81540rcu_preempt0-21swapper/108:47:401
81540rcu_preempt0-21swapper/011:34:020
81540rcu_preempt0-21swapper/010:15:510
81540rcu_preempt0-21swapper/010:09:210
81540rcu_preempt0-21swapper/009:25:490
81530rcu_preempt29560-21sshd07:46:060
20747995349cyclictest945-21usb-storage08:51:081
89550520irq/17-ehci_hcd0-21swapper/007:58:210
81520rcu_preempt0-21swapper/008:51:260
81520rcu_preempt0-21swapper/008:27:570
20747995249cyclictest945-21usb-storage09:08:431
20747995249cyclictest945-21usb-storage08:05:151
20747995249cyclictest945-21usb-storage07:54:121
20747995248cyclictest945-21usb-storage07:29:041
20747995148cyclictest945-21usb-storage08:13:271
20747995148cyclictest945-21usb-storage07:46:061
20747995142cyclictest945-21usb-storage07:49:561
81500rcu_preempt0-21swapper/008:44:030
81480rcu_preempt0-21swapper/009:00:200
81470rcu_preempt0-21swapper/008:34:010
81460rcu_preempt7687-21df_inode08:28:560
81440rcu_preempt26066-21df07:33:580
20746993910cyclictest23233-21kworker/0:007:43:150
89550340irq/17-ehci_hcd1869-21/usr/sbin/munin08:04:060
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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