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2025-07-12 - 10:41
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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 Jul 12, 2025 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81770rcu_preempt17120-21cat21:35:471
81760rcu_preempt0-21swapper/023:42:420
89950710irq/17-ehci_hcd23648-21ntp_states20:21:110
89950710irq/17-ehci_hcd23648-21ntp_states20:21:110
81710rcu_preempt0-21swapper/123:34:011
81690rcu_preempt0-21swapper/023:24:150
81690rcu_preempt0-21swapper/022:51:060
81680rcu_preempt2055-21sh23:06:110
81680rcu_preempt0-21swapper/023:05:090
81680rcu_preempt0-21swapper/021:54:300
81680rcu_preempt0-21swapper/021:54:300
81670rcu_preempt10786-21sh21:23:160
81670rcu_preempt0-21swapper/019:06:010
81650rcu_preempt22591-21apt-get21:45:591
81650rcu_preempt0-21swapper/121:14:471
81650rcu_preempt0-21swapper/019:42:440
81640rcu_preempt0-21swapper/123:06:311
81630rcu_preempt2224-21snmpd00:37:291
81630rcu_preempt15453-21timerandwakeup21:31:130
81630rcu_preempt0-21swapper/121:21:251
81630rcu_preempt0-21swapper/100:04:141
81620rcu_preempt18224-21diskmemload00:37:050
81620rcu_preempt0-21swapper/123:21:191
81620rcu_preempt0-21swapper/121:54:141
81620rcu_preempt0-21swapper/121:54:141
81620rcu_preempt0-21swapper/121:26:091
81620rcu_preempt0-21swapper/100:00:311
81620rcu_preempt0-21swapper/022:21:120
81610rcu_preempt29152-21mailstats22:56:130
81610rcu_preempt22650-21ssh22:45:561
81610rcu_preempt15666-1kworker/0:2H21:36:080
81610rcu_preempt13649-21ssh23:28:121
81610rcu_preempt0-21swapper/022:03:180
81610rcu_preempt0-21swapper/019:10:590
141350610irq/31-eth0-tx-32529-21kworker/1:119:08:501
81600rcu_preempt24995-21ssh23:49:491
81600rcu_preempt13099-21ssh22:26:311
81600rcu_preempt0-21swapper/123:17:481
81600rcu_preempt0-21swapper/123:17:481
81600rcu_preempt0-21swapper/123:14:211
81600rcu_preempt0-21swapper/123:00:241
81600rcu_preempt0-21swapper/122:39:381
81600rcu_preempt0-21swapper/122:33:191
81600rcu_preempt0-21swapper/122:21:481
81600rcu_preempt0-21swapper/122:05:521
81600rcu_preempt0-21swapper/120:52:551
81600rcu_preempt0-21swapper/119:42:521
81600rcu_preempt0-21swapper/023:18:290
81600rcu_preempt0-21swapper/023:18:290
81600rcu_preempt0-21swapper/022:13:590
81600rcu_preempt0-21swapper/020:06:030
81600rcu_preempt0-21swapper/019:47:520
81600rcu_preempt0-21swapper/000:18:190
81590rcu_preempt8587-21ssh21:20:221
81590rcu_preempt19762-21ssh23:40:480
81590rcu_preempt18709-21ssh23:37:201
81590rcu_preempt15617-21ssh21:31:291
81590rcu_preempt0-21swapper/123:53:491
81590rcu_preempt0-21swapper/122:20:391
81590rcu_preempt0-21swapper/122:11:531
81590rcu_preempt0-21swapper/100:27:351
81590rcu_preempt0-21swapper/100:12:181
81590rcu_preempt0-21swapper/023:15:010
81590rcu_preempt0-21swapper/022:20:380
81590rcu_preempt0-21swapper/019:23:070
81590rcu_preempt0-21swapper/000:31:140
81590rcu_preempt0-21swapper/000:11:000
5197995947cyclictest945-21usb-storage00:04:580
81580rcu_preempt8771-21sendmail21:20:470
81580rcu_preempt2903-21ssh00:08:561
81580rcu_preempt24893-21ssh21:50:170
81580rcu_preempt21298-21ssh22:41:501
81580rcu_preempt2004-21cpuspeed_turbos21:06:000
81580rcu_preempt0-21swapper/123:42:171
81580rcu_preempt0-21swapper/121:45:461
81580rcu_preempt0-21swapper/121:06:061
81580rcu_preempt0-21swapper/100:16:121
81580rcu_preempt0-21swapper/022:46:080
81580rcu_preempt0-21swapper/022:33:560
81580rcu_preempt0-21swapper/022:26:040
81580rcu_preempt0-21swapper/021:13:050
81570rcu_preempt802-21ssh22:05:421
81570rcu_preempt3225-21cron00:10:470
81570rcu_preempt13517-21ssh00:29:110
81570rcu_preempt0-21swapper/120:06:041
81570rcu_preempt0-21swapper/119:51:111
81570rcu_preempt0-21swapper/119:46:121
81570rcu_preempt0-21swapper/119:26:111
81570rcu_preempt0-21swapper/119:22:351
81570rcu_preempt0-21swapper/100:22:411
81570rcu_preempt0-21swapper/022:07:510
81560rcu_preempt30445-21ssh22:00:001
81560rcu_preempt15888-21ssh00:33:141
81560rcu_preempt0-21swapper/120:57:081
81560rcu_preempt0-21swapper/120:19:251
81560rcu_preempt0-21swapper/120:14:091
81560rcu_preempt0-21swapper/119:57:131
81560rcu_preempt0-21swapper/023:51:330
81560rcu_preempt0-21swapper/019:35:080
81560rcu_preempt0-21swapper/000:00:380
81550rcu_preempt28251-21ssh21:56:050
81550rcu_preempt21419-21ssh21:42:050
81550rcu_preempt0-21swapper/123:01:511
81550rcu_preempt0-21swapper/120:46:131
81550rcu_preempt0-21swapper/120:24:091
81550rcu_preempt0-21swapper/120:24:091
81550rcu_preempt0-21swapper/119:31:031
81550rcu_preempt0-21swapper/023:46:230
81550rcu_preempt0-21swapper/023:26:410
81550rcu_preempt0-21swapper/022:42:190
81550rcu_preempt0-21swapper/022:38:170
81550rcu_preempt0-21swapper/021:29:190
81550rcu_preempt0-21swapper/020:36:100
81550rcu_preempt0-21swapper/020:16:050
81540rcu_preempt0-21swapper/122:54:301
81540rcu_preempt0-21swapper/020:12:120
81540rcu_preempt0-21swapper/019:27:410
81540rcu_preempt0-21swapper/000:22:100
81530rcu_preempt0-21swapper/121:02:531
81530rcu_preempt0-21swapper/120:27:371
81530rcu_preempt0-21swapper/019:56:360
81530rcu_preempt0-21swapper/019:35:580
89950520irq/17-ehci_hcd945-21usb-storage20:43:080
81520rcu_preempt0-21swapper/119:18:521
81520rcu_preempt0-21swapper/020:53:090
81520rcu_preempt0-21swapper/020:31:550
81520rcu_preempt0-21swapper/019:51:400
81510rcu_preempt0-21swapper/120:40:021
81510rcu_preempt0-21swapper/120:32:081
81510rcu_preempt0-21swapper/019:19:020
5202995148cyclictest945-21usb-storage20:01:131
81500rcu_preempt29523-21fw_forwarded_lo20:46:040
81500rcu_preempt16724-21ssh23:34:340
81500rcu_preempt12325-21ntp_states19:36:091
5202995047cyclictest945-21usb-storage19:12:181
81490rcu_preempt0-21swapper/020:02:070
5202994946cyclictest945-21usb-storage20:42:231
5197994947cyclictest945-21usb-storage20:25:580
81440rcu_preempt32240-21irqstats20:56:050
81360rcu_preempt570-21/usr/sbin/munin21:01:080
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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