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2026-06-10 - 07:19
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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 Wed Jun 10, 2026 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
89550730irq/17-ehci_hcd0-21swapper/119:08:491
81730rcu_preempt0-21swapper/021:48:420
89950700irq/17-ehci_hcd945-21usb-storage23:37:500
81700rcu_preempt20831-21diskmemload23:23:270
81700rcu_preempt0-21swapper/100:08:571
81700rcu_preempt0-21swapper/019:58:510
81700rcu_preempt0-21swapper/000:08:300
81690rcu_preempt2411-21ssh00:38:481
81690rcu_preempt0-21swapper/121:34:271
81690rcu_preempt0-21swapper/100:34:251
81680rcu_preempt20831-21diskmemload21:14:411
81680rcu_preempt0-21swapper/123:20:181
81680rcu_preempt0-21swapper/023:30:040
81680rcu_preempt0-21swapper/019:53:470
81680rcu_preempt0-21swapper/000:13:500
81670rcu_preempt19440-21kworker/0:119:08:540
81670rcu_preempt0-21swapper/119:53:521
81660rcu_preempt0-21swapper/122:16:141
81660rcu_preempt0-21swapper/100:02:121
81660rcu_preempt0-21swapper/021:18:170
81660rcu_preempt0-21swapper/000:22:040
81650rcu_preempt26807-21ssh00:23:500
81650rcu_preempt26300-21ssh00:23:431
81650rcu_preempt24160-21munin-run23:18:290
81650rcu_preempt21613-21latency_hist22:13:301
81640rcu_preempt23847-21sed21:18:300
81630rcu_preempt31256-21ssh00:33:001
81630rcu_preempt27901-21missed_timers22:23:531
81630rcu_preempt22516-21ssh22:13:530
81630rcu_preempt0-21swapper/119:13:431
81630rcu_preempt0-21swapper/023:03:190
81630rcu_preempt0-21swapper/021:47:470
81630rcu_preempt0-21swapper/000:03:300
81620rcu_preempt16373-21ssh23:03:441
81620rcu_preempt0-21swapper/123:39:091
81620rcu_preempt0-21swapper/123:08:371
81620rcu_preempt0-21swapper/122:42:171
81620rcu_preempt0-21swapper/122:07:471
81620rcu_preempt0-21swapper/022:29:330
146550620irq/30-eth0-tx-13941-21ssh23:58:510
81610rcu_preempt12730-21ssh21:56:090
81610rcu_preempt10207-21ssh21:51:441
81610rcu_preempt0-21swapper/123:35:191
81610rcu_preempt0-21swapper/122:55:061
81610rcu_preempt0-21swapper/122:45:461
81610rcu_preempt0-21swapper/122:32:211
81610rcu_preempt0-21swapper/121:58:551
81610rcu_preempt0-21swapper/119:33:501
81610rcu_preempt0-21swapper/119:33:501
81610rcu_preempt0-21swapper/100:19:581
81610rcu_preempt0-21swapper/022:38:360
81610rcu_preempt0-21swapper/021:33:050
81610rcu_preempt0-21swapper/020:08:540
81610rcu_preempt0-21swapper/019:48:460
81600rcu_preempt4203-21wc20:03:551
81600rcu_preempt31101-21ssh23:29:341
81600rcu_preempt29279-21munin-run21:28:300
81600rcu_preempt25516-21ssh21:20:071
81600rcu_preempt20631-21python21:08:551
81600rcu_preempt10894-21ssh21:53:301
81600rcu_preempt0-21swapper/123:46:281
81600rcu_preempt0-21swapper/123:24:021
81600rcu_preempt0-21swapper/122:22:401
81600rcu_preempt0-21swapper/121:38:441
81600rcu_preempt0-21swapper/100:03:451
81600rcu_preempt0-21swapper/023:24:070
81600rcu_preempt0-21swapper/022:48:450
81600rcu_preempt0-21swapper/022:43:410
81590rcu_preempt8074-21/usr/sbin/munin23:48:441
81590rcu_preempt6633-21ssh21:44:191
81590rcu_preempt29608-21ssh21:28:431
81590rcu_preempt28294-21ssh21:24:561
81590rcu_preempt22655-21ssh00:14:291
81590rcu_preempt18242-21munin-run21:03:291
81590rcu_preempt0-21swapper/123:54:451
81590rcu_preempt0-21swapper/122:50:531
81590rcu_preempt0-21swapper/122:35:461
81590rcu_preempt0-21swapper/119:23:571
81590rcu_preempt0-21swapper/023:08:560
81590rcu_preempt0-21swapper/023:04:340
81590rcu_preempt0-21swapper/000:33:490
81580rcu_preempt30815-21ssh00:31:290
81580rcu_preempt27238-21ssh22:23:390
81580rcu_preempt24418-21ssh22:18:350
81580rcu_preempt13566-21apt-get22:58:421
81580rcu_preempt0-21swapper/123:15:161
81580rcu_preempt0-21swapper/121:04:011
81580rcu_preempt0-21swapper/120:28:431
81580rcu_preempt0-21swapper/022:01:100
81580rcu_preempt0-21swapper/019:18:440
81570rcu_preempt1529-21ssh21:35:190
81570rcu_preempt10009-21ssh23:51:380
81570rcu_preempt0-21swapper/120:52:561
81570rcu_preempt0-21swapper/120:34:591
81570rcu_preempt0-21swapper/119:47:561
81570rcu_preempt0-21swapper/119:39:231
81570rcu_preempt0-21swapper/022:54:490
81570rcu_preempt0-21swapper/020:43:440
81560rcu_preempt6061-21if_can020:13:470
81560rcu_preempt3-21ksoftirqd/021:40:380
81560rcu_preempt21449-21ssh22:13:040
81560rcu_preempt0-21swapper/120:45:471
81560rcu_preempt0-21swapper/120:27:141
81560rcu_preempt0-21swapper/119:28:301
81560rcu_preempt0-21swapper/023:53:490
81560rcu_preempt0-21swapper/022:33:510
81560rcu_preempt0-21swapper/022:06:390
81560rcu_preempt0-21swapper/000:42:090
81550rcu_preempt8154-21munin-run20:23:290
81550rcu_preempt2192-21snmpd23:46:090
81550rcu_preempt0-21swapper/120:40:331
81550rcu_preempt0-21swapper/120:15:571
81550rcu_preempt0-21swapper/023:38:550
81550rcu_preempt0-21swapper/019:33:520
81550rcu_preempt0-21swapper/019:33:520
81540rcu_preempt0-21swapper/120:11:571
81540rcu_preempt0-21swapper/020:53:580
81540rcu_preempt0-21swapper/019:28:330
81540rcu_preempt0-21swapper/019:24:360
81530rcu_preempt0-21swapper/119:51:301
81530rcu_preempt0-21swapper/020:28:520
81520rcu_preempt8417-21cpuspeed_turbos20:23:430
81520rcu_preempt0-21swapper/119:21:371
81520rcu_preempt0-21swapper/020:38:540
81520rcu_preempt0-21swapper/019:14:360
22854995249cyclictest945-21usb-storage19:58:491
81510rcu_preempt0-21swapper/021:02:560
81500rcu_preempt0-21swapper/120:22:511
81500rcu_preempt0-21swapper/020:48:540
146650500irq/31-eth0-tx-0-21swapper/120:53:421
81490rcu_preempt3392-21df20:03:440
81490rcu_preempt0-21swapper/019:45:510
81490rcu_preempt0-21swapper/019:41:180
81480rcu_preempt0-21swapper/021:05:590
22853994741cyclictest945-21usb-storage21:08:560
81460rcu_preempt0-21swapper/020:34:320
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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