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2026-09-10 - 18:09
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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 highest latencies:
System rackcslot3.osadl.org (updated Thu Sep 10, 2026 12:43:25)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81800rcu_preempt24445-21latency_hist07:31:141
81760rcu_preempt19-21ksoftirqd/109:53:011
81750rcu_preempt21595-21python07:16:381
81750rcu_preempt19-21ksoftirqd/110:33:051
81740rcu_preempt0-21swapper/110:27:521
81710rcu_preempt2192-21snmpd12:21:271
81710rcu_preempt16525-21apt-get11:21:280
81710rcu_preempt0-21swapper/010:21:350
81710rcu_preempt0-21swapper/007:41:260
81700rcu_preempt9135-21diskmemload11:06:290
81700rcu_preempt19-21ksoftirqd/111:46:101
81700rcu_preempt0-21swapper/009:44:270
81690rcu_preempt0-21swapper/012:21:370
81690rcu_preempt0-21swapper/012:16:340
81690rcu_preempt0-21swapper/010:35:470
81680rcu_preempt28896-21/usr/sbin/munin10:41:280
81680rcu_preempt12382-21/usr/sbin/munin08:51:290
81680rcu_preempt0-21swapper/010:46:350
81670rcu_preempt27738-21latency_hist09:36:150
81670rcu_preempt10902-21awk08:46:140
81650rcu_preempt5490-21/usr/sbin/munin09:56:150
81650rcu_preempt19573-21k10sensors09:16:390
81640rcu_preempt0-21swapper/012:12:010
81640rcu_preempt0-21swapper/010:30:130
81630rcu_preempt5753-21ssh12:02:380
81630rcu_preempt0-21swapper/011:26:370
81630rcu_preempt0-21swapper/010:36:300
81620rcu_preempt0-21swapper/012:06:380
81620rcu_preempt0-21swapper/008:28:240
81620rcu_preempt0-21swapper/007:31:350
81620rcu_preempt0-21swapper/007:26:370
81610rcu_preempt0-21swapper/011:53:190
81610rcu_preempt0-21swapper/011:32:320
81610rcu_preempt0-21swapper/010:13:220
81610rcu_preempt0-21swapper/007:18:260
81600rcu_preempt29534-21munin-run12:51:150
81600rcu_preempt0-21swapper/010:19:330
81600rcu_preempt0-21swapper/009:31:370
81600rcu_preempt0-21swapper/009:28:190
81590rcu_preempt9638-21munin-run08:41:150
81590rcu_preempt7991-21ssh10:00:511
81590rcu_preempt30075-21ssh10:42:281
81590rcu_preempt26012-21ssh11:39:301
81590rcu_preempt22460-21ssh09:26:111
81590rcu_preempt2192-21snmpd12:36:300
81590rcu_preempt0-21swapper/110:53:151
81590rcu_preempt0-21swapper/110:25:241
81590rcu_preempt0-21swapper/108:56:311
81590rcu_preempt0-21swapper/108:41:331
81590rcu_preempt0-21swapper/012:33:000
81590rcu_preempt0-21swapper/011:57:290
81590rcu_preempt0-21swapper/008:01:330
81580rcu_preempt9891-21ssh10:03:101
81580rcu_preempt8380-21munin-run08:36:150
81580rcu_preempt729-21ssh10:50:041
81580rcu_preempt26490-21ssh12:44:041
81580rcu_preempt18429-21ssh12:27:180
81580rcu_preempt11702-21ssh12:15:421
81580rcu_preempt0-21swapper/112:37:201
81580rcu_preempt0-21swapper/111:47:521
81580rcu_preempt0-21swapper/111:17:291
81580rcu_preempt0-21swapper/111:12:391
81580rcu_preempt0-21swapper/111:09:431
81580rcu_preempt0-21swapper/111:00:011
81580rcu_preempt0-21swapper/110:37:401
81580rcu_preempt0-21swapper/109:16:311
81580rcu_preempt0-21swapper/108:36:071
81580rcu_preempt0-21swapper/108:26:291
81580rcu_preempt0-21swapper/107:41:351
81580rcu_preempt0-21swapper/010:01:360
81570rcu_preempt571-21ssh11:52:101
81570rcu_preempt2776-21ssh09:50:250
81570rcu_preempt18856-21ssh12:28:551
81570rcu_preempt18276-21ssh11:24:091
81570rcu_preempt0-21swapper/112:34:301
81570rcu_preempt0-21swapper/112:08:151
81570rcu_preempt0-21swapper/111:29:391
81570rcu_preempt0-21swapper/110:16:411
81570rcu_preempt0-21swapper/110:12:101
81570rcu_preempt0-21swapper/110:07:461
81570rcu_preempt0-21swapper/109:42:471
81570rcu_preempt0-21swapper/109:32:101
81570rcu_preempt0-21swapper/108:40:411
81570rcu_preempt0-21swapper/107:30:421
81570rcu_preempt0-21swapper/107:21:401
81570rcu_preempt0-21swapper/011:21:010
81570rcu_preempt0-21swapper/010:58:260
81570rcu_preempt0-21swapper/010:06:400
81570rcu_preempt0-21swapper/009:56:400
21813995753cyclictest945-21usb-storage11:56:511
81560rcu_preempt6096-21ssh12:03:501
81560rcu_preempt3412-21ssh10:55:040
81560rcu_preempt29534-21ssh09:39:031
81560rcu_preempt22848-21ssh11:32:001
81560rcu_preempt0-21swapper/111:05:191
81560rcu_preempt0-21swapper/109:26:561
81560rcu_preempt0-21swapper/108:56:071
81560rcu_preempt0-21swapper/108:47:501
81560rcu_preempt0-21swapper/107:50:081
81560rcu_preempt0-21swapper/012:45:560
81560rcu_preempt0-21swapper/009:24:070
81560rcu_preempt0-21swapper/008:56:210
81560rcu_preempt0-21swapper/008:11:310
21813995646cyclictest945-21usb-storage12:20:001
21813995646cyclictest945-21usb-storage08:24:321
21813995645cyclictest945-21usb-storage12:49:191
81550rcu_preempt25573-21ssh11:37:480
81550rcu_preempt2148-21ssh09:47:591
81550rcu_preempt0-21swapper/109:07:051
81550rcu_preempt0-21swapper/011:15:280
81550rcu_preempt0-21swapper/011:03:540
81550rcu_preempt0-21swapper/008:46:320
81550rcu_preempt0-21swapper/007:56:420
81540rcu_preempt30636-21ssh11:47:530
81540rcu_preempt0-21swapper/108:16:231
81540rcu_preempt0-21swapper/108:01:431
81540rcu_preempt0-21swapper/107:56:481
81540rcu_preempt0-21swapper/107:53:121
81540rcu_preempt0-21swapper/011:43:570
81540rcu_preempt0-21swapper/009:01:330
81540rcu_preempt0-21swapper/008:21:410
81540rcu_preempt0-21swapper/008:16:410
81540rcu_preempt0-21swapper/008:07:100
81530rcu_preempt0-21swapper/107:39:031
21813995348cyclictest945-21usb-storage09:11:281
21812995348cyclictest945-21usb-storage09:06:310
81520rcu_preempt22258-21if_can107:21:310
21813995249cyclictest945-21usb-storage09:05:301
21813995247cyclictest945-21usb-storage08:14:381
21813995147cyclictest945-21usb-storage08:06:221
81500rcu_preempt0-21swapper/007:39:040
81490rcu_preempt0-21swapper/007:50:100
21812994945cyclictest945-21usb-storage07:51:250
81480rcu_preempt18128-21ntp_states09:11:370
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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