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2026-01-02 - 10:43
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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 792 highest latencies:
System rackcslot3.osadl.org (updated Fri Jan 02, 2026 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
147850840irq/30-eth0-tx-23352-21cron00:40:510
81800rcu_preempt22818-21df_inode21:51:070
81780rcu_preempt0-21swapper/019:09:380
81780rcu_preempt0-21swapper/019:09:380
81760rcu_preempt0-21swapper/123:41:541
81720rcu_preempt30987-21munin-plugin-st22:05:521
81720rcu_preempt0-21swapper/022:02:270
81700rcu_preempt0-21swapper/123:03:091
81690rcu_preempt29085-21sh23:53:321
81690rcu_preempt22165-21sh00:37:111
81690rcu_preempt21394-21apt-get23:41:020
81690rcu_preempt0-21swapper/121:51:141
81690rcu_preempt0-21swapper/119:41:131
81690rcu_preempt0-21swapper/119:31:121
81680rcu_preempt15483-21munin-run23:30:521
81680rcu_preempt0-21swapper/122:21:161
81680rcu_preempt0-21swapper/100:21:481
81670rcu_preempt9779-21df_abs19:46:071
81670rcu_preempt2138-21snmpd21:26:061
81670rcu_preempt21185-21idleruntime-cro23:40:520
81670rcu_preempt0-21swapper/123:46:231
81670rcu_preempt0-21swapper/100:03:021
81660rcu_preempt6455-21ssh22:18:091
81660rcu_preempt16547-21netstat20:11:121
81660rcu_preempt0-21swapper/123:58:411
81660rcu_preempt0-21swapper/122:59:291
81660rcu_preempt0-21swapper/000:26:530
81650rcu_preempt29856-21/usr/sbin/munin21:06:120
81650rcu_preempt1694-21irqstats23:06:140
81650rcu_preempt15736-21munin-run20:10:510
81650rcu_preempt0-21swapper/119:53:351
81650rcu_preempt0-21swapper/119:36:051
81650rcu_preempt0-21swapper/023:01:270
81650rcu_preempt0-21swapper/021:16:150
81650rcu_preempt0-21swapper/020:27:340
81650rcu_preempt0-21swapper/019:57:420
81640rcu_preempt21512-21ssh22:44:191
81640rcu_preempt14812-21ssh00:26:031
81640rcu_preempt0-21swapper/121:13:041
81640rcu_preempt0-21swapper/021:49:320
81640rcu_preempt0-21swapper/021:22:170
81630rcu_preempt8636-21ssh00:15:160
81630rcu_preempt7839-21ssh00:12:591
81630rcu_preempt2751-21ssh00:04:010
81630rcu_preempt24741-21munin-run22:50:510
81630rcu_preempt18066-21ssh23:35:010
81630rcu_preempt0-21swapper/023:21:080
81630rcu_preempt0-21swapper/023:21:080
81630rcu_preempt0-21swapper/020:16:120
81630rcu_preempt0-21swapper/019:21:180
81620rcu_preempt5712-21ssh23:12:341
81620rcu_preempt0-21swapper/121:56:101
81620rcu_preempt0-21swapper/100:16:061
81620rcu_preempt0-21swapper/023:29:020
81620rcu_preempt0-21swapper/023:16:140
81620rcu_preempt0-21swapper/022:41:120
81620rcu_preempt0-21swapper/022:31:180
81620rcu_preempt0-21swapper/020:14:340
81620rcu_preempt0-21swapper/019:11:170
81610rcu_preempt399-21sshd19:08:351
81610rcu_preempt399-21sshd19:08:351
81610rcu_preempt3778-21ssh22:13:480
81610rcu_preempt0-21swapper/122:37:031
81610rcu_preempt0-21swapper/122:33:161
81610rcu_preempt0-21swapper/121:33:481
81610rcu_preempt0-21swapper/021:37:510
81610rcu_preempt0-21swapper/021:12:550
81610rcu_preempt0-21swapper/000:06:030
81600rcu_preempt9725-21ssh21:28:390
81600rcu_preempt5324-21ssh23:11:260
81600rcu_preempt516-21ssh22:08:001
81600rcu_preempt0-21swapper/123:38:021
81600rcu_preempt0-21swapper/120:56:071
81600rcu_preempt0-21swapper/023:57:290
81600rcu_preempt0-21swapper/022:58:190
81600rcu_preempt0-21swapper/022:26:360
81600rcu_preempt0-21swapper/021:35:320
81590rcu_preempt30991-21diskmemload21:41:040
81590rcu_preempt27262-21ssh22:54:401
81590rcu_preempt23603-21cpuspeed20:41:040
81590rcu_preempt20232-21sed20:26:131
81590rcu_preempt18477-21ntp_states00:31:161
81590rcu_preempt0-21swapper/122:12:541
81590rcu_preempt0-21swapper/121:38:121
81590rcu_preempt0-21swapper/121:23:561
81590rcu_preempt0-21swapper/119:29:291
81590rcu_preempt0-21swapper/100:06:461
81590rcu_preempt0-21swapper/022:53:330
81590rcu_preempt0-21swapper/021:57:300
81590rcu_preempt0-21swapper/019:54:180
81580rcu_preempt3618-21ssh23:10:031
81580rcu_preempt23582-21ssh22:47:111
81580rcu_preempt18095-21ssh22:38:040
81580rcu_preempt0-21swapper/121:44:251
81580rcu_preempt0-21swapper/023:46:150
81580rcu_preempt0-21swapper/022:17:000
81580rcu_preempt0-21swapper/022:06:360
81580rcu_preempt0-21swapper/020:37:330
81580rcu_preempt0-21swapper/020:31:350
81580rcu_preempt0-21swapper/019:32:150
81580rcu_preempt0-21swapper/000:31:140
81570rcu_preempt29130-21ssh23:53:400
81570rcu_preempt18132-21ssh23:35:141
81570rcu_preempt13882-21ssh00:23:280
81570rcu_preempt0-21swapper/122:28:331
81570rcu_preempt0-21swapper/121:46:361
81570rcu_preempt0-21swapper/119:16:031
81570rcu_preempt0-21swapper/119:15:431
81570rcu_preempt0-21swapper/022:22:210
81570rcu_preempt0-21swapper/019:29:320
81570rcu_preempt0-21swapper/019:20:510
81560rcu_preempt3447-21ssh21:17:251
81560rcu_preempt24261-21ntpq20:41:131
81560rcu_preempt2138-21snmpd20:47:521
81560rcu_preempt0-21swapper/123:23:191
81560rcu_preempt0-21swapper/123:23:191
81560rcu_preempt0-21swapper/123:18:411
81560rcu_preempt0-21swapper/120:06:181
81560rcu_preempt0-21swapper/119:56:161
81560rcu_preempt0-21swapper/020:25:220
81560rcu_preempt0-21swapper/019:41:430
81560rcu_preempt0-21swapper/000:19:270
81550rcu_preempt0-21swapper/120:36:131
81550rcu_preempt0-21swapper/119:20:521
81550rcu_preempt0-21swapper/019:49:150
81540rcu_preempt0-21swapper/121:02:341
81540rcu_preempt0-21swapper/120:31:221
81540rcu_preempt0-21swapper/021:04:530
81540rcu_preempt0-21swapper/020:51:010
81540rcu_preempt0-21swapper/020:02:410
81530rcu_preempt0-21swapper/120:51:131
81530rcu_preempt0-21swapper/120:16:261
81530rcu_preempt0-21swapper/120:02:261
81510rcu_preempt25523-21ntp_states20:46:150
81480rcu_preempt7145-21df19:36:060
455994642cyclictest945-21usb-storage21:06:081
455994541cyclictest945-21usb-storage20:21:041
454993734cyclictest945-21usb-storage20:57:110
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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