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2026-08-27 - 21:36
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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 Thu Aug 27, 2026 12:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81800rcu_preempt0-21swapper/011:30:240
81730rcu_preempt25678-21timerandwakeup11:30:311
81720rcu_preempt878-21sh10:41:561
81720rcu_preempt4113-21ssh09:45:211
81710rcu_preempt0-21swapper/111:35:291
81710rcu_preempt0-21swapper/110:55:251
81710rcu_preempt0-21swapper/011:05:240
81710rcu_preempt0-21swapper/010:42:380
81710rcu_preempt0-21swapper/010:20:580
81700rcu_preempt6979-21uname08:15:220
81700rcu_preempt22766-21diskmemload10:07:121
81700rcu_preempt0-21swapper/011:39:480
81700rcu_preempt0-21swapper/010:15:280
81700rcu_preempt0-21swapper/009:23:550
81700rcu_preempt0-21swapper/007:45:270
81690rcu_preempt0-21swapper/111:07:091
81690rcu_preempt0-21swapper/009:43:220
81690rcu_preempt0-21swapper/007:15:240
81680rcu_preempt20206-21ssh11:20:251
81680rcu_preempt18707-21sh11:17:291
81680rcu_preempt11340-21ssh11:03:241
81680rcu_preempt0-21swapper/112:20:201
81670rcu_preempt31482-21sh10:39:231
81670rcu_preempt20184-21cpuspeed12:25:171
81670rcu_preempt0-21swapper/110:46:161
81670rcu_preempt0-21swapper/108:05:221
81670rcu_preempt0-21swapper/009:55:050
81660rcu_preempt8883-21ssh12:01:400
81660rcu_preempt29881-21munin-run07:40:030
81660rcu_preempt29720-21switchtime07:35:291
81660rcu_preempt1156-21timerandwakeup07:50:280
81660rcu_preempt0-21swapper/109:31:131
81660rcu_preempt0-21swapper/107:18:321
89550650irq/17-ehci_hcd10288-21apt-get08:30:150
81650rcu_preempt3602-21munin-run09:45:041
81650rcu_preempt3-21ksoftirqd/011:28:380
81650rcu_preempt0-21swapper/110:03:571
81640rcu_preempt21257-21which09:10:281
81640rcu_preempt0-21swapper/012:35:220
81630rcu_preempt0-21swapper/111:47:471
81630rcu_preempt0-21swapper/111:25:311
81630rcu_preempt0-21swapper/011:20:510
81620rcu_preempt8751-21ssh10:57:550
81620rcu_preempt3463-21cat11:50:301
81620rcu_preempt16636-21df_abs10:10:181
81620rcu_preempt0-21swapper/112:46:591
81620rcu_preempt0-21swapper/110:20:271
81620rcu_preempt0-21swapper/108:39:221
81620rcu_preempt0-21swapper/012:25:220
81620rcu_preempt0-21swapper/011:40:580
81620rcu_preempt0-21swapper/009:50:230
81610rcu_preempt22766-21diskmemload09:27:340
81610rcu_preempt14284-21ssh12:13:111
81610rcu_preempt0-21swapper/112:18:231
81610rcu_preempt0-21swapper/110:53:131
81610rcu_preempt0-21swapper/108:20:271
81610rcu_preempt0-21swapper/108:20:271
81610rcu_preempt0-21swapper/007:30:270
81600rcu_preempt24764-21ssh09:22:391
81600rcu_preempt23907-21ssh12:30:580
81600rcu_preempt22766-21diskmemload12:43:090
81600rcu_preempt17367-21ps08:55:281
81600rcu_preempt0-21swapper/111:41:221
81600rcu_preempt0-21swapper/109:57:071
81600rcu_preempt0-21swapper/108:30:221
81600rcu_preempt0-21swapper/012:15:260
81600rcu_preempt0-21swapper/010:30:570
81600rcu_preempt0-21swapper/010:10:260
81600rcu_preempt0-21swapper/010:09:100
81600rcu_preempt0-21swapper/008:40:040
24783996043cyclictest181ktimersoftd/111:10:261
89950590irq/17-ehci_hcd3-21ksoftirqd/010:28:500
81590rcu_preempt8618-21ssh12:00:411
81590rcu_preempt27942-21ssh10:31:061
81590rcu_preempt0-21swapper/110:16:421
81590rcu_preempt0-21swapper/109:19:301
81590rcu_preempt0-21swapper/109:06:261
81590rcu_preempt0-21swapper/108:45:201
81590rcu_preempt0-21swapper/107:50:191
81590rcu_preempt0-21swapper/012:23:530
81590rcu_preempt0-21swapper/012:11:030
81590rcu_preempt0-21swapper/011:10:510
81580rcu_preempt6554-21ssh09:50:191
81580rcu_preempt6217-21ssh10:52:520
81580rcu_preempt3239-21ssh10:46:190
81580rcu_preempt24792-21ssh10:25:251
81580rcu_preempt16461-21munin-run08:55:040
81580rcu_preempt0-21swapper/112:30:271
81580rcu_preempt0-21swapper/112:08:331
81580rcu_preempt0-21swapper/112:08:331
81580rcu_preempt0-21swapper/108:50:221
81580rcu_preempt0-21swapper/108:25:291
81580rcu_preempt0-21swapper/107:49:311
81580rcu_preempt0-21swapper/107:30:191
81580rcu_preempt0-21swapper/011:55:140
81580rcu_preempt0-21swapper/011:02:060
81570rcu_preempt32390-21ssh09:36:421
81570rcu_preempt29258-21ssh09:30:330
81570rcu_preempt1802-21ssh11:48:280
81570rcu_preempt13587-21ssh10:04:200
81570rcu_preempt12161-21ssh12:09:400
81570rcu_preempt12161-21ssh12:09:400
81570rcu_preempt0-21swapper/112:41:191
81570rcu_preempt0-21swapper/112:35:231
81570rcu_preempt0-21swapper/109:28:571
81570rcu_preempt0-21swapper/108:15:221
81570rcu_preempt0-21swapper/107:56:161
81570rcu_preempt0-21swapper/107:24:501
81570rcu_preempt0-21swapper/012:45:180
81570rcu_preempt0-21swapper/009:10:170
81560rcu_preempt3727-21ssh11:51:110
81560rcu_preempt32146-21ssh09:35:410
81560rcu_preempt18422-21ssh11:16:250
81560rcu_preempt0-21swapper/108:04:051
81560rcu_preempt0-21swapper/010:37:410
81560rcu_preempt0-21swapper/009:05:380
81560rcu_preempt0-21swapper/008:10:180
81550rcu_preempt0-21swapper/109:00:321
81550rcu_preempt0-21swapper/108:12:431
81550rcu_preempt0-21swapper/107:43:031
81550rcu_preempt0-21swapper/107:25:361
81550rcu_preempt0-21swapper/008:45:220
81540rcu_preempt6428-21ssh11:57:031
81540rcu_preempt0-21swapper/009:50:030
81540rcu_preempt0-21swapper/008:05:430
81530rcu_preempt17166-21memory08:55:240
81520rcu_preempt22739-21sshd09:16:110
81510rcu_preempt13375-21memory08:40:240
81510rcu_preempt0-21swapper/008:25:430
81510rcu_preempt0-21swapper/007:20:240
81490rcu_preempt2952-21diskstats08:00:190
81480rcu_preempt1667-21diskstats07:55:190
81480rcu_preempt0-21swapper/008:20:490
81480rcu_preempt0-21swapper/008:20:490
81440rcu_preempt26656-21irqstats07:25:230
24783994340cyclictest945-21usb-storage08:40:151
81380rcu_preempt3-21ksoftirqd/009:04:270
81320rcu_preempt30329-21if_can007:40:200
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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