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2026-01-07 - 15:00
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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 Jan 07, 2026 12:43:25)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81930rcu_preempt19-21ksoftirqd/111:17:511
81820rcu_preempt18275-21fw_conntrack12:36:231
81800rcu_preempt13114-21ntp_states12:26:291
81770rcu_preempt13125-21ssh11:31:241
81750rcu_preempt0-21swapper/109:51:311
81710rcu_preempt0-21swapper/107:06:271
81710rcu_preempt0-21swapper/007:06:250
81700rcu_preempt3548-21sh11:15:140
81690rcu_preempt0-21swapper/012:40:070
81690rcu_preempt0-21swapper/010:43:530
81690rcu_preempt0-21swapper/008:21:230
81680rcu_preempt29926-21munin-run12:01:070
81680rcu_preempt14436-1kworker/0:1H09:22:580
81670rcu_preempt0-21swapper/010:19:120
89850660irq/17-ehci_hcd0-21swapper/107:51:071
81660rcu_preempt25391-21sendmail-msp09:01:060
81660rcu_preempt21745-21ssh11:46:230
81660rcu_preempt0-21swapper/109:01:571
81660rcu_preempt0-21swapper/011:34:550
81660rcu_preempt0-21swapper/010:22:110
81660rcu_preempt0-21swapper/010:15:450
81640rcu_preempt0-21swapper/010:36:030
81630rcu_preempt16441-21ssh12:31:551
81630rcu_preempt12077-21ssh12:26:000
81630rcu_preempt0-21swapper/011:51:520
81630rcu_preempt0-21swapper/007:25:170
81620rcu_preempt0-21swapper/011:07:310
81620rcu_preempt0-21swapper/008:48:110
81620rcu_preempt0-21swapper/008:12:250
81610rcu_preempt19-21ksoftirqd/112:19:201
81610rcu_preempt0-21swapper/012:35:240
81610rcu_preempt0-21swapper/008:45:360
81610rcu_preempt0-21swapper/008:36:230
81610rcu_preempt0-21swapper/008:33:000
89450600irq/17-ehci_hcd5759-21cat07:41:270
81600rcu_preempt30739-21ssh12:01:280
81600rcu_preempt30280-21ssh11:05:310
81600rcu_preempt29526-21ssh09:12:120
81600rcu_preempt23223-21ssh10:52:070
81600rcu_preempt21955-21rm09:55:310
81600rcu_preempt0-21swapper/112:02:401
81600rcu_preempt0-21swapper/111:24:481
81600rcu_preempt0-21swapper/110:23:581
81600rcu_preempt0-21swapper/010:49:420
81600rcu_preempt0-21swapper/009:33:200
81590rcu_preempt9145-21ssh10:27:520
81590rcu_preempt6856-21ssh09:29:220
81590rcu_preempt23995-21ssh09:58:020
81590rcu_preempt19361-21ssh11:41:270
81590rcu_preempt18688-21ssh10:45:301
81590rcu_preempt15528-21ssh09:44:040
81590rcu_preempt14974-21ssh10:38:150
81590rcu_preempt0-21swapper/109:49:381
81590rcu_preempt0-21swapper/109:36:241
81590rcu_preempt0-21swapper/109:21:141
81590rcu_preempt0-21swapper/109:17:381
81590rcu_preempt0-21swapper/012:11:480
81590rcu_preempt0-21swapper/012:09:480
81590rcu_preempt0-21swapper/011:22:080
81590rcu_preempt0-21swapper/011:16:250
81590rcu_preempt0-21swapper/010:06:350
81590rcu_preempt0-21swapper/009:48:080
81580rcu_preempt5046-21ssh12:12:211
81580rcu_preempt28721-21ssh11:57:141
81580rcu_preempt27183-21ssh10:03:451
81580rcu_preempt13331-21ssh09:41:060
81580rcu_preempt12380-21ssh10:34:111
81580rcu_preempt11741-21ssh11:28:470
81580rcu_preempt10174-21ssh09:35:251
81580rcu_preempt0-21swapper/112:06:151
81580rcu_preempt0-21swapper/111:45:231
81580rcu_preempt0-21swapper/111:07:181
81580rcu_preempt0-21swapper/111:02:311
81580rcu_preempt0-21swapper/110:39:131
81580rcu_preempt0-21swapper/109:11:351
81580rcu_preempt0-21swapper/107:56:321
81580rcu_preempt0-21swapper/107:31:341
81580rcu_preempt0-21swapper/107:24:431
81580rcu_preempt0-21swapper/012:26:130
81580rcu_preempt0-21swapper/012:18:560
81580rcu_preempt0-21swapper/011:37:080
81580rcu_preempt0-21swapper/010:04:120
81580rcu_preempt0-21swapper/009:21:050
81580rcu_preempt0-21swapper/007:34:120
81570rcu_preempt32588-21ssh10:12:131
81570rcu_preempt3243-21ssh11:14:191
81570rcu_preempt26776-21apt-get09:06:181
81570rcu_preempt21489-21ssh10:50:301
81570rcu_preempt0-21swapper/112:23:171
81570rcu_preempt0-21swapper/110:56:241
81570rcu_preempt0-21swapper/109:00:431
81570rcu_preempt0-21swapper/108:46:251
81570rcu_preempt0-21swapper/108:41:271
81570rcu_preempt0-21swapper/010:56:240
81570rcu_preempt0-21swapper/008:28:150
81570rcu_preempt0-21swapper/007:12:400
89450560irq/17-ehci_hcd15209-21latency_hist08:21:070
81560rcu_preempt26568-21ssh11:54:231
81560rcu_preempt24928-21ssh10:00:471
81560rcu_preempt12128-21ssh11:29:531
81560rcu_preempt0-21swapper/111:47:271
81560rcu_preempt0-21swapper/110:54:181
81560rcu_preempt0-21swapper/110:26:261
81560rcu_preempt0-21swapper/109:41:221
81560rcu_preempt0-21swapper/107:52:531
81560rcu_preempt0-21swapper/107:41:191
81560rcu_preempt0-21swapper/008:51:120
81560rcu_preempt0-21swapper/008:06:460
81560rcu_preempt0-21swapper/007:30:190
81550rcu_preempt28141-21ssh10:06:091
81550rcu_preempt0-21swapper/111:38:081
81550rcu_preempt0-21swapper/109:29:151
81550rcu_preempt0-21swapper/108:06:251
81550rcu_preempt0-21swapper/107:17:221
81550rcu_preempt0-21swapper/008:00:060
81550rcu_preempt0-21swapper/007:37:190
81540rcu_preempt27703-21python09:06:310
81540rcu_preempt2461-21ps10:16:301
81540rcu_preempt0-21swapper/108:25:001
81540rcu_preempt0-21swapper/108:12:501
81540rcu_preempt0-21swapper/107:26:311
81540rcu_preempt0-21swapper/008:04:060
81540rcu_preempt0-21swapper/007:49:120
81530rcu_preempt0-21swapper/108:51:251
81520rcu_preempt0-21swapper/108:26:501
81510rcu_preempt14531-21irqstats08:16:281
81500rcu_preempt0-21swapper/108:31:091
147650490irq/28-eth0-rx-41ktimersoftd/009:02:450
81480rcu_preempt19840-21ntp_states08:36:291
81480rcu_preempt10907-21grep08:01:281
81430rcu_preempt30221-21fw_forwarded_lo07:11:241
147850430irq/30-eth0-tx-31215-21/usr/sbin/munin07:16:300
89850390irq/17-ehci_hcd0-21swapper/007:55:020
147950340irq/31-eth0-tx-27226-21kworker/1:107:36:221
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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