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2025-09-16 - 06:13
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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 Tue Sep 16, 2025 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
141350970irq/31-eth0-tx-10795-21kworker/1:219:11:071
81770rcu_preempt0-21swapper/019:09:020
81730rcu_preempt6669-21sh23:56:350
81720rcu_preempt3286-21rm22:45:091
81720rcu_preempt31166-21/usr/sbin/munin19:48:521
81720rcu_preempt20049-21diskmemload23:06:380
81720rcu_preempt20049-21diskmemload21:55:100
81710rcu_preempt22389-21ssh21:17:050
81710rcu_preempt16950-21ssh00:18:170
81710rcu_preempt0-21swapper/121:24:131
81710rcu_preempt0-21swapper/100:06:141
81710rcu_preempt0-21swapper/023:43:350
81710rcu_preempt0-21swapper/000:33:530
81700rcu_preempt29463-21ssh23:38:180
81700rcu_preempt21516-21ssh22:18:390
81700rcu_preempt18963-21ssh23:17:170
81700rcu_preempt15073-21sh22:04:070
81700rcu_preempt0-21swapper/123:11:501
81700rcu_preempt0-21swapper/100:02:231
81690rcu_preempt0-21swapper/123:34:331
81690rcu_preempt0-21swapper/120:36:351
81690rcu_preempt0-21swapper/022:33:460
81690rcu_preempt0-21swapper/021:47:070
81680rcu_preempt30788-21apt-get21:33:480
81680rcu_preempt0-21swapper/022:17:130
81670rcu_preempt0-21swapper/123:53:361
81670rcu_preempt0-21swapper/123:38:541
81670rcu_preempt0-21swapper/123:15:481
81670rcu_preempt0-21swapper/122:05:521
81670rcu_preempt0-21swapper/121:55:381
81670rcu_preempt0-21swapper/121:43:311
81670rcu_preempt0-21swapper/119:44:001
81670rcu_preempt0-21swapper/021:18:360
81660rcu_preempt22435-21ssh22:19:001
81660rcu_preempt20151-21ssh00:23:511
81660rcu_preempt20049-21diskmemload22:48:461
81660rcu_preempt0-21swapper/121:22:081
81660rcu_preempt0-21swapper/020:59:000
141250660irq/30-eth0-tx-945-21usb-storage00:10:520
81650rcu_preempt3-21ksoftirqd/022:50:570
81650rcu_preempt20049-21diskmemload22:58:470
81650rcu_preempt0-21swapper/123:05:161
81650rcu_preempt0-21swapper/120:25:311
81640rcu_preempt28896-21forks19:38:501
81640rcu_preempt25213-21timerandwakeup22:24:000
141050640irq/28-eth0-rx-41ktimersoftd/000:25:570
89950630irq/17-ehci_hcd945-21usb-storage22:01:110
81630rcu_preempt3-21ksoftirqd/000:32:010
81630rcu_preempt26597-21ssh00:36:061
81630rcu_preempt0-21swapper/122:24:071
81630rcu_preempt0-21swapper/121:12:481
81630rcu_preempt0-21swapper/120:54:501
81630rcu_preempt0-21swapper/022:38:530
81630rcu_preempt0-21swapper/022:28:570
81630rcu_preempt0-21swapper/020:27:180
81630rcu_preempt0-21swapper/000:07:240
81620rcu_preempt0-21swapper/123:03:341
81620rcu_preempt0-21swapper/121:45:341
81620rcu_preempt0-21swapper/023:23:540
81620rcu_preempt0-21swapper/022:56:020
81610rcu_preempt25906-21ssh21:23:490
81610rcu_preempt0-21swapper/121:49:581
81610rcu_preempt0-21swapper/120:03:531
81600rcu_preempt8952-21ssh22:57:441
81600rcu_preempt12956-21ssh22:00:491
81600rcu_preempt0-21swapper/123:52:471
81600rcu_preempt0-21swapper/123:31:481
81600rcu_preempt0-21swapper/122:36:541
81600rcu_preempt0-21swapper/122:28:591
81600rcu_preempt0-21swapper/119:58:531
81600rcu_preempt0-21swapper/100:13:171
81600rcu_preempt0-21swapper/000:38:530
81590rcu_preempt3-21ksoftirqd/022:43:470
81590rcu_preempt22206-21ssh21:16:301
81590rcu_preempt19556-21ssh00:23:101
81590rcu_preempt16683-21ssh00:17:241
81590rcu_preempt16640-21ssh23:13:010
81590rcu_preempt1130-21munin-run19:58:340
81590rcu_preempt0-21swapper/122:11:231
81590rcu_preempt0-21swapper/121:04:011
81590rcu_preempt0-21swapper/119:33:581
81590rcu_preempt0-21swapper/119:29:011
81590rcu_preempt0-21swapper/100:38:501
81590rcu_preempt0-21swapper/100:31:031
81590rcu_preempt0-21swapper/023:45:100
81590rcu_preempt0-21swapper/023:28:550
81590rcu_preempt0-21swapper/020:48:540
81580rcu_preempt9985-21munin-run20:33:341
81580rcu_preempt7678-21ssh21:50:080
81580rcu_preempt396-21ssh21:37:161
81580rcu_preempt20049-21diskmemload00:01:170
81580rcu_preempt16591-21ssh22:08:480
81580rcu_preempt0-21swapper/123:26:471
81580rcu_preempt0-21swapper/122:13:491
81580rcu_preempt0-21swapper/121:28:521
81580rcu_preempt0-21swapper/120:22:431
81580rcu_preempt0-21swapper/119:25:051
81580rcu_preempt0-21swapper/020:13:550
22233995853cyclictest945-21usb-storage22:42:561
81570rcu_preempt0-21swapper/123:45:051
81570rcu_preempt0-21swapper/123:21:391
81570rcu_preempt0-21swapper/120:52:351
81570rcu_preempt0-21swapper/120:43:291
81570rcu_preempt0-21swapper/020:30:230
81560rcu_preempt0-21swapper/023:19:000
81560rcu_preempt0-21swapper/021:29:020
81560rcu_preempt0-21swapper/020:43:550
81550rcu_preempt2711-21ssh21:40:510
81550rcu_preempt0-21swapper/119:19:251
81550rcu_preempt0-21swapper/119:17:251
81550rcu_preempt0-21swapper/019:36:240
81540rcu_preempt3642-21ssh23:49:240
81540rcu_preempt18414-21ssh00:19:090
81540rcu_preempt0-21swapper/119:57:481
81540rcu_preempt0-21swapper/020:04:520
81540rcu_preempt0-21swapper/019:39:210
81540rcu_preempt0-21swapper/019:24:540
81530rcu_preempt30181-21fw_forwarded_lo19:43:520
81530rcu_preempt22584-21df_inode19:13:490
81530rcu_preempt0-21swapper/120:58:551
81530rcu_preempt0-21swapper/020:23:120
81530rcu_preempt0-21swapper/019:28:560
81520rcu_preempt4838-21sort20:09:031
81510rcu_preempt0-21swapper/021:08:530
81500rcu_preempt5807-21ntp_states20:14:001
81500rcu_preempt15420-21fw_forwarded_lo20:53:550
22222995047cyclictest945-21usb-storage19:53:330
81490rcu_preempt2224-21snmpd20:43:431
81460rcu_preempt2413-21munin-run20:03:340
81450rcu_preempt24085-21irqstats19:18:540
81440rcu_preempt11944-21memory20:38:570
81410rcu_preempt4911-21users20:09:040
81370rcu_preempt11300-21latency_hist20:38:340
89550320irq/17-ehci_hcd0-21swapper/021:03:480
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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