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2025-11-28 - 00:09
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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 Nov 27, 2025 12:43:25)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81740rcu_preempt30676-21munin-run07:59:491
81730rcu_preempt12985-21/usr/sbin/munin10:59:491
81700rcu_preempt3313-21sh09:43:161
81700rcu_preempt0-21swapper/008:50:090
81690rcu_preempt0-21swapper/009:41:430
81680rcu_preempt0-21swapper/111:15:361
81680rcu_preempt0-21swapper/012:29:300
81680rcu_preempt0-21swapper/011:58:450
151450680irq/28-eth0-rx-21906-21ssh11:15:050
81670rcu_preempt0-21swapper/112:30:101
81670rcu_preempt0-21swapper/111:10:071
81670rcu_preempt0-21swapper/109:58:431
81670rcu_preempt0-21swapper/010:34:140
81660rcu_preempt22406-21sh10:16:471
81660rcu_preempt21861-21munin-run07:24:490
81660rcu_preempt18600-21munin-run11:09:491
81660rcu_preempt0-21swapper/109:20:221
81660rcu_preempt0-21swapper/108:50:111
81660rcu_preempt0-21swapper/009:54:320
81650rcu_preempt4711-21latency_hist10:44:491
81650rcu_preempt0-21swapper/110:06:231
81650rcu_preempt0-21swapper/109:11:321
81640rcu_preempt9043-21sh10:51:121
81640rcu_preempt0-21swapper/111:47:241
81640rcu_preempt0-21swapper/109:51:061
81640rcu_preempt0-21swapper/109:17:131
81640rcu_preempt0-21swapper/011:35:310
81640rcu_preempt0-21swapper/010:48:230
81640rcu_preempt0-21swapper/010:07:510
81630rcu_preempt21856-21munin-run07:24:491
81630rcu_preempt16709-21ssh11:05:110
81630rcu_preempt10846-21sh11:52:551
81630rcu_preempt0-21swapper/110:03:191
81630rcu_preempt0-21swapper/107:05:161
81630rcu_preempt0-21swapper/011:40:150
81620rcu_preempt25521-21grep12:20:081
81620rcu_preempt0-21swapper/112:19:351
81620rcu_preempt0-21swapper/109:35:451
81620rcu_preempt0-21swapper/108:45:051
81620rcu_preempt0-21swapper/011:14:340
81620rcu_preempt0-21swapper/009:48:010
81620rcu_preempt0-21swapper/009:34:580
81620rcu_preempt0-21swapper/009:17:340
81620rcu_preempt0-21swapper/007:45:050
81610rcu_preempt24620-21ssh09:24:130
81610rcu_preempt0-21swapper/109:48:011
81610rcu_preempt0-21swapper/107:50:091
81600rcu_preempt3716-21irqstats11:40:081
81600rcu_preempt3-21ksoftirqd/009:58:110
81600rcu_preempt29769-21ssh11:29:471
81600rcu_preempt27190-21ssh09:28:491
81600rcu_preempt2455-21ssh10:40:060
81600rcu_preempt16691-21munin-run12:04:490
81600rcu_preempt1669-21ssh10:39:011
81600rcu_preempt0-21swapper/112:10:191
81600rcu_preempt0-21swapper/112:07:211
81600rcu_preempt0-21swapper/110:33:201
81600rcu_preempt0-21swapper/012:33:440
81590rcu_preempt4098-21ssh10:42:591
81590rcu_preempt2179-21ssh12:37:160
81590rcu_preempt15617-21ssh11:04:281
81590rcu_preempt0-21swapper/112:35:581
81590rcu_preempt0-21swapper/110:27:551
81590rcu_preempt0-21swapper/110:10:101
81590rcu_preempt0-21swapper/109:32:211
81590rcu_preempt0-21swapper/009:30:170
81590rcu_preempt0-21swapper/008:46:220
81590rcu_preempt0-21swapper/007:09:480
81580rcu_preempt31923-21ssh11:32:370
81580rcu_preempt2653-21ssh11:38:511
81580rcu_preempt25534-21ssh10:23:010
81580rcu_preempt2067-21sshd08:14:211
81580rcu_preempt15580-21ssh12:00:391
81580rcu_preempt15050-21latency_hist10:04:490
81580rcu_preempt11937-21ssh10:56:170
81580rcu_preempt0-21swapper/112:25:061
81580rcu_preempt0-21swapper/111:30:021
81580rcu_preempt0-21swapper/110:20:411
81580rcu_preempt0-21swapper/012:05:130
81580rcu_preempt0-21swapper/011:46:070
81580rcu_preempt0-21swapper/010:29:280
81570rcu_preempt28565-21ssh11:26:110
81570rcu_preempt0-21swapper/108:40:071
81570rcu_preempt0-21swapper/107:45:011
81570rcu_preempt0-21swapper/107:27:241
81570rcu_preempt0-21swapper/011:52:140
81570rcu_preempt0-21swapper/010:53:540
81570rcu_preempt0-21swapper/008:17:290
81570rcu_preempt0-21swapper/007:41:220
81560rcu_preempt0-21swapper/111:55:211
81560rcu_preempt0-21swapper/108:31:531
81560rcu_preempt0-21swapper/011:23:500
81560rcu_preempt0-21swapper/011:00:450
81560rcu_preempt0-21swapper/009:25:070
81550rcu_preempt26912-21ssh12:23:240
81550rcu_preempt23961-21ntpq07:30:100
81550rcu_preempt23961-21ntpq07:30:100
81550rcu_preempt14571-21sensors09:00:111
81550rcu_preempt0-21swapper/108:15:061
81550rcu_preempt0-21swapper/107:19:451
81550rcu_preempt0-21swapper/010:19:440
81550rcu_preempt0-21swapper/009:10:110
81550rcu_preempt0-21swapper/008:35:040
81540rcu_preempt5691-21smartctl08:25:120
81540rcu_preempt16041-21diskmemload10:10:540
81540rcu_preempt1325-21ssh10:37:550
81540rcu_preempt0-21swapper/111:23:271
81540rcu_preempt0-21swapper/108:21:211
81540rcu_preempt0-21swapper/008:31:590
81540rcu_preempt0-21swapper/007:50:130
81540rcu_preempt0-21swapper/007:19:120
81530rcu_preempt2235-21snmpd07:27:470
81530rcu_preempt0-21swapper/109:06:181
81530rcu_preempt0-21swapper/108:24:541
81530rcu_preempt0-21swapper/012:17:520
81520rcu_preempt30964-21df08:00:001
81520rcu_preempt21987-21ssh12:14:280
81520rcu_preempt0-21swapper/108:59:381
81520rcu_preempt0-21swapper/009:02:300
81510rcu_preempt24913-21if_eth007:35:060
81510rcu_preempt2235-21snmpd08:43:400
81500rcu_preempt23969-21ntp_states07:30:101
81500rcu_preempt23969-21ntp_states07:30:101
81490rcu_preempt25586-21users07:35:131
81490rcu_preempt0-21swapper/008:20:100
81480rcu_preempt31904-21users08:00:120
81480rcu_preempt0-21swapper/009:05:170
81470rcu_preempt26262-21irqstats07:40:101
81460rcu_preempt30031-21irqstats07:55:070
81450rcu_preempt32331-21diskstats08:05:031
81450rcu_preempt2041-21users08:10:140
81440rcu_preempt710-21users08:05:140
81410rcu_preempt2235-21snmpd07:10:060
81390rcu_preempt8003-21ntp_states08:35:081
151950350irq/31-eth0-tx-21578-21kworker/1:207:11:441
81330rcu_preempt13029-21head08:55:090
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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