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2025-12-11 - 17:49
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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 Dec 11, 2025 12:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81710rcu_preempt13142-21kernelversion11:30:001
81710rcu_preempt0-21swapper/107:07:361
81690rcu_preempt21305-21ssh10:46:310
81690rcu_preempt11555-21df10:29:540
81690rcu_preempt0-21swapper/009:12:520
81680rcu_preempt4496-21diskstats11:14:550
81680rcu_preempt29973-1kworker/0:2H10:54:100
81670rcu_preempt0-21swapper/108:14:551
81660rcu_preempt15461-21ssh09:39:121
81660rcu_preempt0-21swapper/111:53:581
81660rcu_preempt0-21swapper/110:17:031
81650rcu_preempt0-21swapper/112:09:581
81650rcu_preempt0-21swapper/109:11:581
81640rcu_preempt5105-21open_files11:15:231
81640rcu_preempt30807-1kworker/1:2H09:18:311
81640rcu_preempt27144-21cpu09:59:520
81640rcu_preempt0-21swapper/112:04:531
81640rcu_preempt0-21swapper/109:42:141
81640rcu_preempt0-21swapper/108:35:061
81630rcu_preempt24206-21latency_hist09:54:401
81630rcu_preempt0-21swapper/111:45:101
81630rcu_preempt0-21swapper/111:35:101
81630rcu_preempt0-21swapper/111:11:291
81630rcu_preempt0-21swapper/011:27:430
81620rcu_preempt26193-21kernelversion08:49:591
81620rcu_preempt10119-21rm10:26:240
81620rcu_preempt0-21swapper/112:38:351
81620rcu_preempt0-21swapper/111:58:301
81620rcu_preempt0-21swapper/111:06:061
81620rcu_preempt0-21swapper/107:25:001
81620rcu_preempt0-21swapper/011:52:000
81610rcu_preempt17726-21ssh09:42:170
81610rcu_preempt11506-21ssh09:31:001
81610rcu_preempt0-21swapper/112:34:001
81610rcu_preempt0-21swapper/110:07:211
81610rcu_preempt0-21swapper/108:30:001
81610rcu_preempt0-21swapper/012:34:550
81610rcu_preempt0-21swapper/012:11:340
81610rcu_preempt0-21swapper/010:41:480
151950610irq/31-eth0-tx-32639-21cyclictest10:14:510
81600rcu_preempt29198-21grep09:00:041
81600rcu_preempt24894-21load09:54:590
81600rcu_preempt14552-21df_abs08:04:521
81600rcu_preempt0-21swapper/112:16:181
81600rcu_preempt0-21swapper/109:54:011
81600rcu_preempt0-21swapper/109:24:571
81600rcu_preempt0-21swapper/107:19:541
81600rcu_preempt0-21swapper/009:45:040
81600rcu_preempt0-21swapper/009:28:330
81590rcu_preempt30959-21ssh12:02:091
81590rcu_preempt0-21swapper/110:55:151
81590rcu_preempt0-21swapper/109:23:221
81590rcu_preempt0-21swapper/107:50:051
81590rcu_preempt0-21swapper/107:30:041
81590rcu_preempt0-21swapper/012:18:280
81580rcu_preempt32480-21ssh11:06:320
81580rcu_preempt30124-21ssh11:02:510
81580rcu_preempt1509-21ssh10:10:480
81580rcu_preempt14204-21sh11:31:320
81580rcu_preempt0-21swapper/112:27:221
81580rcu_preempt0-21swapper/112:23:051
81580rcu_preempt0-21swapper/111:39:581
81580rcu_preempt0-21swapper/110:37:361
81580rcu_preempt0-21swapper/110:26:131
81580rcu_preempt0-21swapper/110:12:391
81580rcu_preempt0-21swapper/110:00:001
81580rcu_preempt0-21swapper/109:48:061
81580rcu_preempt0-21swapper/107:15:061
81580rcu_preempt0-21swapper/012:24:190
81580rcu_preempt0-21swapper/010:06:200
81580rcu_preempt0-21swapper/009:51:540
81570rcu_preempt8408-21ssh11:21:001
81570rcu_preempt28154-21apt-get10:59:521
81570rcu_preempt26928-21ssh10:56:220
81570rcu_preempt2668-21ssh11:10:420
81570rcu_preempt20684-21python10:45:051
81570rcu_preempt14657-21ssh12:31:340
81570rcu_preempt11457-21ssh11:26:491
81570rcu_preempt0-21swapper/108:42:311
81570rcu_preempt0-21swapper/108:10:351
81570rcu_preempt0-21swapper/011:37:240
81570rcu_preempt0-21swapper/011:20:280
81570rcu_preempt0-21swapper/009:19:500
81570rcu_preempt0-21swapper/009:04:530
81560rcu_preempt30629-21diskmemload10:37:510
81560rcu_preempt0-21swapper/110:49:571
81560rcu_preempt0-21swapper/110:20:031
81560rcu_preempt0-21swapper/109:09:291
81560rcu_preempt0-21swapper/107:55:001
81560rcu_preempt0-21swapper/107:42:321
81560rcu_preempt0-21swapper/011:59:170
81560rcu_preempt0-21swapper/010:19:410
81560rcu_preempt0-21swapper/009:38:330
81560rcu_preempt0-21swapper/009:16:540
81560rcu_preempt0-21swapper/008:25:010
81550rcu_preempt0-21swapper/110:32:211
81550rcu_preempt0-21swapper/108:58:321
81550rcu_preempt0-21swapper/108:23:421
81550rcu_preempt0-21swapper/107:45:051
81550rcu_preempt0-21swapper/012:25:120
81550rcu_preempt0-21swapper/012:05:450
81550rcu_preempt0-21swapper/012:01:430
81550rcu_preempt0-21swapper/011:44:550
81550rcu_preempt0-21swapper/011:39:450
81550rcu_preempt0-21swapper/008:47:420
81540rcu_preempt25117-21kworker/0:207:04:540
81540rcu_preempt2235-21snmpd08:42:480
81540rcu_preempt12499-21ssh09:33:570
81540rcu_preempt0-21swapper/108:46:441
81540rcu_preempt0-21swapper/007:34:580
81530rcu_preempt0-21swapper/107:12:171
90050520irq/17-ehci_hcd27791-21cut08:55:070
81520rcu_preempt0-21swapper/108:03:111
81520rcu_preempt0-21swapper/008:31:260
3264199521cyclictest0-21swapper/007:24:110
81510rcu_preempt0-21swapper/007:14:590
32641995149cyclictest946-21usb-storage07:39:550
81500rcu_preempt0-21swapper/008:21:200
81500rcu_preempt0-21swapper/008:05:430
32641995048cyclictest946-21usb-storage07:55:000
81490rcu_preempt10375-21munin-run07:49:390
81470rcu_preempt0-21swapper/008:00:270
32645994643cyclictest946-21usb-storage08:25:061
81450rcu_preempt11252-21ntpq07:50:010
32641994543cyclictest946-21usb-storage09:03:530
32641994543cyclictest946-21usb-storage08:16:530
81430rcu_preempt4343-21df07:24:530
81430rcu_preempt1068-21ntp_states07:10:000
32641994340cyclictest946-21usb-storage07:29:510
151950430irq/31-eth0-tx-0-21swapper/110:44:011
81420rcu_preempt22056-21df08:34:540
32641994038cyclictest946-21usb-storage08:10:030
81380rcu_preempt26280-21memory08:49:590
81340rcu_preempt7132-21awk07:34:581
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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