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2025-10-19 - 00:19
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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 Sat Oct 18, 2025 12:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81830rcu_preempt0-21swapper/012:30:260
81780rcu_preempt0-21swapper/112:09:591
81740rcu_preempt29979-21/usr/sbin/munin10:40:151
81740rcu_preempt18616-21sh10:20:020
81720rcu_preempt13540-21diskmemload09:35:190
81700rcu_preempt13540-21diskmemload10:45:280
81700rcu_preempt0-21swapper/111:49:511
81700rcu_preempt0-21swapper/011:21:000
81700rcu_preempt0-21swapper/011:13:440
81700rcu_preempt0-21swapper/010:25:020
81700rcu_preempt0-21swapper/008:40:170
81690rcu_preempt0-21swapper/010:05:260
81690rcu_preempt0-21swapper/007:13:030
89950670irq/17-ehci_hcd15688-21ssh11:11:121
81670rcu_preempt18314-21apt-get07:25:110
81670rcu_preempt0-21swapper/107:10:521
81660rcu_preempt9901-21munin-plugin-st11:59:580
81660rcu_preempt27815-21cut10:35:220
81660rcu_preempt0-21swapper/010:56:150
81650rcu_preempt32241-21ssh12:40:160
81650rcu_preempt16285-21if_eth112:10:210
81650rcu_preempt12181-21/usr/sbin/munin11:05:240
81650rcu_preempt0-21swapper/108:25:471
81650rcu_preempt0-21swapper/012:39:020
81650rcu_preempt0-21swapper/012:20:270
81650rcu_preempt0-21swapper/010:04:110
81640rcu_preempt25720-21munin-plugin-st07:54:580
81640rcu_preempt0-21swapper/109:26:151
81640rcu_preempt0-21swapper/109:18:581
81640rcu_preempt0-21swapper/010:30:170
81640rcu_preempt0-21swapper/009:19:090
81630rcu_preempt7383-21apt-get08:50:110
81630rcu_preempt28302-21ssh09:40:100
81630rcu_preempt19-21ksoftirqd/112:14:031
81630rcu_preempt0-21swapper/107:46:401
89950620irq/17-ehci_hcd0-21swapper/109:58:401
81620rcu_preempt3180-21ssh09:51:421
81620rcu_preempt27676-21ssh11:33:071
81620rcu_preempt17423-21if_err_eth107:20:170
81620rcu_preempt0-21swapper/111:59:301
81620rcu_preempt0-21swapper/111:29:521
81620rcu_preempt0-21swapper/110:15:061
81620rcu_preempt0-21swapper/109:42:011
81620rcu_preempt0-21swapper/109:21:211
81620rcu_preempt0-21swapper/011:18:460
81620rcu_preempt0-21swapper/009:00:240
89150610irq/17-ehci_hcd945-21usb-storage09:23:590
81610rcu_preempt703-21ssh11:42:561
81610rcu_preempt30437-21ssh12:35:411
81610rcu_preempt2960-21ssh10:50:101
81610rcu_preempt2224-21snmpd11:40:130
81610rcu_preempt18643-21ssh10:20:071
81610rcu_preempt0-21swapper/112:00:211
81610rcu_preempt0-21swapper/110:36:511
81610rcu_preempt0-21swapper/110:27:371
81610rcu_preempt0-21swapper/110:10:541
81610rcu_preempt0-21swapper/007:30:170
81610rcu_preempt0-21swapper/007:15:210
81600rcu_preempt5974-21latency_hist08:44:590
81600rcu_preempt28687-21ssh12:33:501
81600rcu_preempt22897-21ssh12:22:281
81600rcu_preempt21943-21/usr/sbin/munin07:39:580
81600rcu_preempt0-21swapper/111:51:091
81600rcu_preempt0-21swapper/110:01:411
81600rcu_preempt0-21swapper/109:46:291
81600rcu_preempt0-21swapper/010:18:170
81600rcu_preempt0-21swapper/009:55:190
81590rcu_preempt26122-21ssh10:32:451
81590rcu_preempt24462-21munin-run07:49:580
81590rcu_preempt20241-21ssh12:17:451
81590rcu_preempt13956-21ssh11:09:411
81590rcu_preempt0-21swapper/110:05:371
81590rcu_preempt0-21swapper/109:38:331
81590rcu_preempt0-21swapper/108:55:241
81590rcu_preempt0-21swapper/107:40:141
81590rcu_preempt0-21swapper/012:09:500
81590rcu_preempt0-21swapper/010:41:540
81590rcu_preempt0-21swapper/009:10:180
81590rcu_preempt0-21swapper/007:40:210
81580rcu_preempt9944-21ssh11:00:541
81580rcu_preempt7627-21diskstats08:50:151
81580rcu_preempt2747-21ssh10:49:561
81580rcu_preempt24585-21ssh09:33:201
81580rcu_preempt2224-21snmpd07:28:061
81580rcu_preempt21449-21ssh11:21:471
81580rcu_preempt19384-21ssh11:19:011
81580rcu_preempt0-21swapper/112:40:201
81580rcu_preempt0-21swapper/108:05:231
81580rcu_preempt0-21swapper/011:53:130
81580rcu_preempt0-21swapper/011:00:200
81580rcu_preempt0-21swapper/009:30:440
81570rcu_preempt7048-21ssh10:55:371
81570rcu_preempt30155-21ssh11:37:090
81570rcu_preempt14333-21ssh10:11:090
81570rcu_preempt0-21swapper/112:25:311
81570rcu_preempt0-21swapper/108:45:091
81570rcu_preempt0-21swapper/108:35:081
81570rcu_preempt0-21swapper/107:30:301
81570rcu_preempt0-21swapper/012:01:530
81570rcu_preempt0-21swapper/011:46:030
81570rcu_preempt0-21swapper/011:34:240
81570rcu_preempt0-21swapper/009:07:200
81570rcu_preempt0-21swapper/008:15:130
81570rcu_preempt0-21swapper/008:10:260
81560rcu_preempt30458-21ssh11:38:111
81560rcu_preempt2224-21snmpd08:03:131
81560rcu_preempt0-21swapper/011:27:560
81560rcu_preempt0-21swapper/009:27:250
81560rcu_preempt0-21swapper/008:35:200
81560rcu_preempt0-21swapper/008:20:320
81560rcu_preempt0-21swapper/007:58:130
81550rcu_preempt0-21swapper/109:00:231
81550rcu_preempt0-21swapper/108:23:461
81550rcu_preempt0-21swapper/108:11:401
81550rcu_preempt0-21swapper/012:27:380
81550rcu_preempt0-21swapper/009:45:280
81540rcu_preempt4202-21ssh09:54:490
81540rcu_preempt0-21swapper/108:44:451
81540rcu_preempt0-21swapper/010:51:360
81540rcu_preempt0-21swapper/008:58:480
81540rcu_preempt0-21swapper/008:09:570
81530rcu_preempt0-21swapper/107:53:521
81530rcu_preempt0-21swapper/012:16:260
15656995349cyclictest945-21usb-storage09:05:251
15656995343cyclictest945-21usb-storage08:30:141
81520rcu_preempt0-21swapper/008:31:120
81520rcu_preempt0-21swapper/008:25:460
81520rcu_preempt0-21swapper/008:04:320
81510rcu_preempt26156-21awk07:55:171
15656995148cyclictest945-21usb-storage07:39:471
15656995148cyclictest945-21usb-storage07:20:291
15656994946cyclictest945-21usb-storage07:15:181
15656994945cyclictest945-21usb-storage08:19:331
15656994839cyclictest945-21usb-storage09:13:101
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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