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2026-06-05 - 04:09
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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 Jun 05, 2026 00:43:25)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
146250960irq/28-eth0-rx-0-21swapper/022:43:480
81740rcu_preempt25574-21ssh22:33:480
81720rcu_preempt12501-21ssh00:09:540
81710rcu_preempt0-21swapper/023:43:200
81710rcu_preempt0-21swapper/023:10:370
81710rcu_preempt0-21swapper/020:33:210
81700rcu_preempt25445-21sh00:36:181
81700rcu_preempt0-21swapper/121:33:171
81700rcu_preempt0-21swapper/022:42:560
81690rcu_preempt23637-21sh22:31:421
81690rcu_preempt22434-21sh00:30:270
81690rcu_preempt0-21swapper/122:35:101
81690rcu_preempt0-21swapper/100:19:271
81690rcu_preempt0-21swapper/023:22:440
81680rcu_preempt6408-21ssh23:58:270
81680rcu_preempt11409-1kworker/0:2H22:30:480
81680rcu_preempt0-21swapper/122:26:271
81680rcu_preempt0-21swapper/100:13:261
81670rcu_preempt28700-21sh21:40:421
81670rcu_preempt23512-21ssh23:30:250
81670rcu_preempt20689-21rm23:25:020
81670rcu_preempt18938-21ls23:23:041
81670rcu_preempt0-21swapper/123:09:451
81670rcu_preempt0-21swapper/122:50:281
89950660irq/17-ehci_hcd945-21usb-storage22:02:341
81660rcu_preempt17251-21expr22:18:300
81660rcu_preempt0-21swapper/100:23:351
81650rcu_preempt3-21ksoftirqd/000:25:250
81650rcu_preempt27213-21sed19:58:291
81650rcu_preempt16095-21apt-get19:18:140
81650rcu_preempt10969-21dpkg00:08:201
81650rcu_preempt0-21swapper/122:20:031
81640rcu_preempt11409-1kworker/0:2H22:12:420
81640rcu_preempt0-21swapper/123:45:221
81640rcu_preempt0-21swapper/122:08:191
81640rcu_preempt0-21swapper/120:59:301
81640rcu_preempt0-21swapper/119:08:261
81640rcu_preempt0-21swapper/021:29:560
81640rcu_preempt0-21swapper/021:23:470
81630rcu_preempt21653-21latency_hist23:28:041
81630rcu_preempt0-21swapper/122:43:121
81630rcu_preempt0-21swapper/122:38:181
81630rcu_preempt0-21swapper/122:14:581
81630rcu_preempt0-21swapper/121:55:391
81630rcu_preempt0-21swapper/121:23:271
81630rcu_preempt0-21swapper/023:13:180
81630rcu_preempt0-21swapper/023:03:080
81630rcu_preempt0-21swapper/020:43:230
81620rcu_preempt2192-21snmpd21:15:081
81620rcu_preempt21234-21ssh22:27:260
81620rcu_preempt21030-21if_err_eth000:28:251
81620rcu_preempt0-21swapper/121:32:541
81620rcu_preempt0-21swapper/119:13:221
81620rcu_preempt0-21swapper/019:48:150
81620rcu_preempt0-21swapper/000:14:470
81610rcu_preempt4593-21ssh23:55:161
81610rcu_preempt26486-21forks00:38:221
81610rcu_preempt0-21swapper/123:07:111
81610rcu_preempt0-21swapper/121:18:261
81610rcu_preempt0-21swapper/120:28:291
81610rcu_preempt0-21swapper/100:00:441
81610rcu_preempt0-21swapper/023:48:530
81600rcu_preempt9344-21ssh22:04:021
81600rcu_preempt25068-21irqstats23:33:241
81600rcu_preempt0-21swapper/123:02:161
81600rcu_preempt0-21swapper/122:56:351
81600rcu_preempt0-21swapper/121:48:221
81600rcu_preempt0-21swapper/120:18:211
81600rcu_preempt0-21swapper/022:51:160
81600rcu_preempt0-21swapper/019:28:230
89950590irq/17-ehci_hcd7089-21ssh23:00:110
81590rcu_preempt5177-21cut20:43:041
81590rcu_preempt2800-21ssh21:53:180
81590rcu_preempt25701-21ntpdc19:53:251
81590rcu_preempt24235-21ssh23:32:431
81590rcu_preempt0-21swapper/121:44:031
81590rcu_preempt0-21swapper/120:33:301
81590rcu_preempt0-21swapper/120:13:221
81590rcu_preempt0-21swapper/120:08:221
81590rcu_preempt0-21swapper/119:18:201
81590rcu_preempt0-21swapper/023:41:560
81590rcu_preempt0-21swapper/000:36:000
81580rcu_preempt3-21ksoftirqd/021:39:270
81580rcu_preempt26297-21ssh23:35:330
81580rcu_preempt11409-1kworker/0:2H21:59:560
81580rcu_preempt0-21swapper/119:26:321
81580rcu_preempt0-21swapper/100:04:061
81580rcu_preempt0-21swapper/023:53:350
81580rcu_preempt0-21swapper/022:54:280
81580rcu_preempt0-21swapper/022:07:500
81580rcu_preempt0-21swapper/021:48:200
81570rcu_preempt9498-21ssh00:03:390
81570rcu_preempt28723-21ssh23:39:341
81570rcu_preempt27863-21if_can120:03:220
81570rcu_preempt0-21swapper/123:52:271
81570rcu_preempt0-21swapper/123:17:411
81570rcu_preempt0-21swapper/121:12:001
81570rcu_preempt0-21swapper/120:49:591
81570rcu_preempt0-21swapper/119:42:241
81570rcu_preempt0-21swapper/021:38:000
81570rcu_preempt0-21swapper/021:21:030
81570rcu_preempt0-21swapper/019:39:520
81570rcu_preempt0-21swapper/019:09:480
81560rcu_preempt31171-21/usr/sbin/munin20:18:040
81560rcu_preempt28497-21ssh00:42:190
81560rcu_preempt15600-21ssh21:18:010
81560rcu_preempt0-21swapper/120:24:081
81560rcu_preempt0-21swapper/119:36:311
81560rcu_preempt0-21swapper/119:28:251
81560rcu_preempt0-21swapper/000:22:320
81550rcu_preempt3-21ksoftirqd/021:45:350
81550rcu_preempt0-21swapper/120:43:121
81550rcu_preempt0-21swapper/120:03:441
81550rcu_preempt0-21swapper/119:47:341
81550rcu_preempt0-21swapper/019:36:310
81540rcu_preempt32451-21sendmail-msp20:23:040
81540rcu_preempt2583-21ls20:33:030
81540rcu_preempt0-21swapper/022:14:070
81530rcu_preempt2192-21snmpd21:05:050
81520rcu_preempt29504-21ntp_states20:08:260
81520rcu_preempt23144-21ntp_states19:43:260
81520rcu_preempt0-21swapper/021:02:300
81520rcu_preempt0-21swapper/019:27:520
14706995248cyclictest945-21usb-storage20:53:220
81510rcu_preempt12046-21irqstats21:08:230
81510rcu_preempt0-21swapper/119:49:111
89950490irq/17-ehci_hcd0-21swapper/019:56:060
14707994946cyclictest945-21usb-storage20:53:591
81470rcu_preempt6782-21fw_forwarded_lo20:48:190
81460rcu_preempt5062-21users20:38:300
146250460irq/28-eth0-rx-27378-21munin-run20:03:040
14707994339cyclictest945-21usb-storage21:05:311
81380rcu_preempt15313-21irqstats19:13:220
14706993531cyclictest945-21usb-storage20:23:260
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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