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2025-12-05 - 06:12
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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 Fri Dec 05, 2025 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81780rcu_preempt0-21swapper/100:35:101
81770rcu_preempt15689-21ssh21:51:580
81730rcu_preempt16748-21python20:35:101
81700rcu_preempt25389-21latency_hist19:04:441
81700rcu_preempt0-21swapper/022:24:310
81700rcu_preempt0-21swapper/021:31:330
81690rcu_preempt5095-21apt-get23:34:570
81690rcu_preempt0-21swapper/021:40:010
81690rcu_preempt0-21swapper/021:18:420
81680rcu_preempt19-21ksoftirqd/121:47:271
81680rcu_preempt0-21swapper/021:59:450
90050660irq/17-ehci_hcd946-21usb-storage22:08:051
81660rcu_preempt0-21swapper/023:32:560
81660rcu_preempt0-21swapper/023:09:010
81650rcu_preempt0-21swapper/122:28:571
81650rcu_preempt0-21swapper/023:27:040
81650rcu_preempt0-21swapper/022:53:230
81650rcu_preempt0-21swapper/022:35:480
81650rcu_preempt0-21swapper/022:15:380
81650rcu_preempt0-21swapper/021:12:290
81640rcu_preempt0-21swapper/119:35:011
81640rcu_preempt0-21swapper/100:30:531
81630rcu_preempt4808-21ssh23:34:241
81630rcu_preempt0-21swapper/123:56:411
81630rcu_preempt0-21swapper/123:28:011
81630rcu_preempt0-21swapper/123:23:331
81630rcu_preempt0-21swapper/023:59:580
81630rcu_preempt0-21swapper/020:20:040
81620rcu_preempt30987-21memory21:20:050
81620rcu_preempt16608-21sshd23:55:110
81620rcu_preempt0-21swapper/121:51:101
81620rcu_preempt0-21swapper/121:31:511
81620rcu_preempt0-21swapper/100:11:091
81620rcu_preempt0-21swapper/021:35:440
81610rcu_preempt9552-21ssh23:42:341
81610rcu_preempt5075-21ssh22:33:411
81610rcu_preempt29133-21ssh23:19:381
81610rcu_preempt25988-21ssh23:12:441
81610rcu_preempt14288-21ssh23:50:281
81610rcu_preempt11770-21ssh22:45:101
81610rcu_preempt0-21swapper/100:29:271
81610rcu_preempt0-21swapper/021:47:490
81610rcu_preempt0-21swapper/019:15:060
81600rcu_preempt7016-21ssh22:36:081
81600rcu_preempt18933-21kworker/0:019:05:070
81600rcu_preempt0-21swapper/123:03:181
81600rcu_preempt0-21swapper/100:19:181
81590rcu_preempt8165-21wc20:04:440
81590rcu_preempt17741-21ssh22:56:440
81590rcu_preempt15438-21ssh22:52:521
81590rcu_preempt0-21swapper/123:45:001
81590rcu_preempt0-21swapper/123:06:211
81590rcu_preempt0-21swapper/121:57:021
81590rcu_preempt0-21swapper/121:35:391
81590rcu_preempt0-21swapper/121:22:301
81590rcu_preempt0-21swapper/121:13:581
81590rcu_preempt0-21swapper/022:41:560
81590rcu_preempt0-21swapper/019:49:580
81590rcu_preempt0-21swapper/000:18:170
81580rcu_preempt31199-21ssh22:20:271
81580rcu_preempt29729-21ssh22:19:361
81580rcu_preempt29626-21ssh00:20:541
81580rcu_preempt19997-21ssh00:02:121
81580rcu_preempt10833-21ssh21:43:291
81580rcu_preempt0-21swapper/122:10:071
81580rcu_preempt0-21swapper/121:24:491
81580rcu_preempt0-21swapper/120:10:041
81580rcu_preempt0-21swapper/119:55:021
81580rcu_preempt0-21swapper/119:30:021
81580rcu_preempt0-21swapper/023:53:170
81580rcu_preempt0-21swapper/000:19:530
81570rcu_preempt6962-21ssh23:37:381
81570rcu_preempt28787-21ssh21:15:231
81570rcu_preempt24327-21ssh22:09:310
81570rcu_preempt17548-21ssh22:55:571
81570rcu_preempt10644-21munin-run20:14:440
81570rcu_preempt0-21swapper/122:40:311
81570rcu_preempt0-21swapper/119:48:341
81570rcu_preempt0-21swapper/119:10:051
81570rcu_preempt0-21swapper/100:06:251
81570rcu_preempt0-21swapper/021:54:460
81570rcu_preempt0-21swapper/000:05:020
81560rcu_preempt25798-21ssh23:12:050
81560rcu_preempt0-21swapper/122:04:031
81560rcu_preempt0-21swapper/121:05:111
81560rcu_preempt0-21swapper/120:27:321
81560rcu_preempt0-21swapper/120:06:241
81560rcu_preempt0-21swapper/120:00:081
81560rcu_preempt0-21swapper/119:21:081
81560rcu_preempt0-21swapper/023:19:020
81560rcu_preempt0-21swapper/022:30:390
81560rcu_preempt0-21swapper/020:54:010
81560rcu_preempt0-21swapper/020:25:040
81560rcu_preempt0-21swapper/020:05:010
81560rcu_preempt0-21swapper/000:35:420
81550rcu_preempt21376-21kernelversion20:55:050
81550rcu_preempt21013-21df20:54:591
81550rcu_preempt1385-21rm22:25:180
81550rcu_preempt0-21swapper/120:45:061
81550rcu_preempt0-21swapper/023:22:470
81550rcu_preempt0-21swapper/023:00:100
81550rcu_preempt0-21swapper/021:26:420
81550rcu_preempt0-21swapper/000:10:040
81540rcu_preempt20096-21irqstats20:50:061
81540rcu_preempt12496-21ssh22:47:110
81540rcu_preempt11688-21ssh23:45:490
81540rcu_preempt0-21swapper/120:15:041
81540rcu_preempt0-21swapper/119:43:141
81540rcu_preempt0-21swapper/022:10:590
81540rcu_preempt0-21swapper/019:25:050
81540rcu_preempt0-21swapper/019:22:030
81530rcu_preempt8591-21ps23:40:080
81530rcu_preempt2605-21ssh00:30:510
81530rcu_preempt0-21swapper/020:46:100
81530rcu_preempt0-21swapper/019:30:160
81520rcu_preempt0-21swapper/019:43:100
81520rcu_preempt0-21swapper/000:26:410
26549995250cyclictest946-21usb-storage20:34:580
81510rcu_preempt31049-21memory19:25:031
81510rcu_preempt23533-21tr21:05:010
81510rcu_preempt0-21swapper/020:30:300
81510rcu_preempt0-21swapper/019:54:590
81510rcu_preempt0-21swapper/019:46:080
26550995148cyclictest946-21usb-storage20:34:361
81500rcu_preempt28209-21fw_conntrack19:14:591
81500rcu_preempt0-21swapper/020:40:240
26549995048cyclictest946-21usb-storage21:00:010
81460rcu_preempt11693-21python20:15:090
26550994441cyclictest11880-21kworker/1:020:22:551
26550994437cyclictest946-21usb-storage19:53:521
26549993937cyclictest946-21usb-storage19:10:030
90050370irq/17-ehci_hcd0-21swapper/120:42:371
2654999372cyclictest0-21swapper/019:37:030
81350rcu_preempt19-21ksoftirqd/121:04:441
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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