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2026-06-20 - 22:35
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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 Sat Jun 20, 2026 12:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81770rcu_preempt0-21swapper/009:26:530
146550750irq/30-eth0-tx-0-21swapper/008:29:430
81740rcu_preempt423-21diskmemload12:39:410
81740rcu_preempt423-21diskmemload10:17:440
81720rcu_preempt10060-21ssh11:30:050
81710rcu_preempt20472-21ssh10:49:441
81710rcu_preempt0-21swapper/007:54:370
81700rcu_preempt0-21swapper/011:58:330
81700rcu_preempt0-21swapper/011:51:000
81700rcu_preempt0-21swapper/009:19:410
81700rcu_preempt0-21swapper/008:54:400
81690rcu_preempt0-21swapper/109:39:391
81680rcu_preempt28937-21vmstat11:04:510
81680rcu_preempt16745-1kworker/0:2H12:18:130
81680rcu_preempt10147-21sh12:32:080
81680rcu_preempt0-21swapper/109:44:511
81680rcu_preempt0-21swapper/007:34:400
81670rcu_preempt15943-21ssh10:41:021
81670rcu_preempt0-21swapper/107:27:271
81670rcu_preempt0-21swapper/011:11:000
81660rcu_preempt0-21swapper/112:40:471
81660rcu_preempt0-21swapper/011:39:350
81660rcu_preempt0-21swapper/007:13:260
81650rcu_preempt0-21swapper/111:30:331
81650rcu_preempt0-21swapper/108:09:391
89950640irq/17-ehci_hcd18840-21ssh09:46:400
81640rcu_preempt13038-21ssh10:35:321
81640rcu_preempt0-21swapper/107:11:061
81640rcu_preempt0-21swapper/012:02:460
81640rcu_preempt0-21swapper/010:12:340
81640rcu_preempt0-21swapper/008:09:460
81640rcu_preempt0-21swapper/007:29:500
81630rcu_preempt8662-21/usr/sbin/munin11:29:231
81630rcu_preempt2047-21ssh11:15:051
81630rcu_preempt0-21swapper/109:49:421
81630rcu_preempt0-21swapper/107:53:381
81630rcu_preempt0-21swapper/010:34:470
81630rcu_preempt0-21swapper/010:33:300
81630rcu_preempt0-21swapper/009:49:450
81620rcu_preempt8200-21ssh10:26:491
81620rcu_preempt24053-21ssh09:55:351
81620rcu_preempt23988-21ssh11:57:331
81620rcu_preempt15150-21munin-run08:04:230
81620rcu_preempt0-21swapper/112:35:121
81620rcu_preempt0-21swapper/112:04:421
81620rcu_preempt0-21swapper/111:45:311
81620rcu_preempt0-21swapper/110:48:021
81620rcu_preempt0-21swapper/010:44:030
81620rcu_preempt0-21swapper/008:19:460
81620rcu_preempt0-21swapper/007:24:470
89950610irq/17-ehci_hcd945-21usb-storage10:03:131
81610rcu_preempt9479-21ssh12:29:501
81610rcu_preempt423-21diskmemload11:46:220
81610rcu_preempt32534-21ssh10:11:531
81610rcu_preempt29799-21ssh10:06:521
81610rcu_preempt2833-21ssh09:17:401
81610rcu_preempt23659-21users10:54:510
81610rcu_preempt13735-21ssh09:37:091
81610rcu_preempt11177-21ssh10:33:151
81610rcu_preempt0-21swapper/112:01:051
81610rcu_preempt0-21swapper/111:39:421
81610rcu_preempt0-21swapper/111:05:391
81610rcu_preempt0-21swapper/109:34:051
81610rcu_preempt0-21swapper/109:21:111
81610rcu_preempt0-21swapper/009:34:100
81610rcu_preempt0-21swapper/009:09:410
81600rcu_preempt32643-21ssh11:13:101
81600rcu_preempt25490-21if_can010:59:410
81600rcu_preempt13147-21ssh11:37:011
81600rcu_preempt12767-21/usr/sbin/munin07:54:411
81600rcu_preempt0-21swapper/110:55:461
81600rcu_preempt0-21swapper/010:04:530
81600rcu_preempt0-21swapper/009:37:040
81590rcu_preempt7910-21ssh12:28:401
81590rcu_preempt7566-21sshd07:31:381
81590rcu_preempt31966-21ssh12:12:391
81590rcu_preempt2528-21ssh12:18:171
81590rcu_preempt25103-21python08:39:481
81590rcu_preempt0-21swapper/112:19:521
81590rcu_preempt0-21swapper/110:59:551
81590rcu_preempt0-21swapper/110:20:061
81590rcu_preempt0-21swapper/110:20:061
81590rcu_preempt0-21swapper/108:47:231
81590rcu_preempt0-21swapper/108:25:081
81590rcu_preempt0-21swapper/108:14:401
81590rcu_preempt0-21swapper/012:09:440
81590rcu_preempt0-21swapper/011:34:470
81590rcu_preempt0-21swapper/011:19:460
81590rcu_preempt0-21swapper/010:44:480
81590rcu_preempt0-21swapper/009:14:460
81590rcu_preempt0-21swapper/009:04:480
81580rcu_preempt5845-21ssh11:24:211
81580rcu_preempt2930-21ssh10:17:291
81580rcu_preempt2497-21ssh11:16:320
81580rcu_preempt0-21swapper/108:55:381
81580rcu_preempt0-21swapper/108:20:031
81580rcu_preempt0-21swapper/107:19:331
81580rcu_preempt0-21swapper/010:51:000
81580rcu_preempt0-21swapper/010:22:430
81580rcu_preempt0-21swapper/010:22:430
81570rcu_preempt7795-21ssh09:25:281
81570rcu_preempt4295-21ssh12:20:110
81570rcu_preempt13136-21ssh12:38:140
81570rcu_preempt0-21swapper/111:49:391
81570rcu_preempt0-21swapper/108:49:381
81570rcu_preempt0-21swapper/012:24:490
81570rcu_preempt0-21swapper/012:06:070
81570rcu_preempt0-21swapper/010:25:030
81570rcu_preempt0-21swapper/008:50:230
81570rcu_preempt0-21swapper/008:47:250
81560rcu_preempt9804-21ps07:39:480
81560rcu_preempt0-21swapper/109:04:441
81560rcu_preempt0-21swapper/010:00:530
81560rcu_preempt0-21swapper/009:56:020
81550rcu_preempt8206-21irqstats07:34:411
81550rcu_preempt7942-21ssh11:27:050
81550rcu_preempt0-21swapper/107:59:421
81550rcu_preempt0-21swapper/107:18:161
81550rcu_preempt0-21swapper/007:49:430
81550rcu_preempt0-21swapper/007:16:230
81540rcu_preempt24070-21latency_hist08:39:221
81540rcu_preempt0-21swapper/109:13:481
81540rcu_preempt0-21swapper/009:42:040
81540rcu_preempt0-21swapper/008:39:450
81540rcu_preempt0-21swapper/008:24:410
81530rcu_preempt0-21swapper/108:29:231
81530rcu_preempt0-21swapper/007:45:380
2530995348cyclictest945-21usb-storage08:04:361
81520rcu_preempt18087-21fw_forwarded_lo08:14:400
81520rcu_preempt0-21swapper/107:47:501
81510rcu_preempt0-21swapper/008:06:330
2530994946cyclictest945-21usb-storage09:04:141
81460rcu_preempt29496-21fw_forwarded_lo08:59:400
81450rcu_preempt9130-21df_abs07:39:381
89550410irq/17-ehci_hcd0-21swapper/008:34:260
146250400irq/28-eth0-rx-4350-21/usr/sbin/munin07:19:410
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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