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2026-07-02 - 03:24
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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 Jul 02, 2026 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81760rcu_preempt19345-21df_inode19:10:321
81750rcu_preempt17964-21df_abs00:15:361
81750rcu_preempt15689-21ssh00:10:411
81730rcu_preempt23627-21sh21:24:141
81730rcu_preempt0-21swapper/000:42:510
81720rcu_preempt26865-21ssh22:30:320
81710rcu_preempt0-21swapper/122:30:401
81710rcu_preempt0-21swapper/100:20:381
81710rcu_preempt0-21swapper/100:00:471
81710rcu_preempt0-21swapper/022:15:380
81710rcu_preempt0-21swapper/022:05:460
81710rcu_preempt0-21swapper/020:25:350
81710rcu_preempt0-21swapper/020:25:350
81700rcu_preempt32401-21fw_conntrack22:40:361
81700rcu_preempt0-21swapper/123:32:351
81700rcu_preempt0-21swapper/000:36:000
81700rcu_preempt0-21swapper/000:36:000
81690rcu_preempt5178-21/usr/sbin/munin23:50:380
81690rcu_preempt29473-21apt-get21:35:331
81690rcu_preempt16883-21sh23:10:560
81680rcu_preempt23209-21sh22:22:591
81680rcu_preempt2192-21snmpd23:53:251
81680rcu_preempt14535-1kworker/1:0H23:19:591
81680rcu_preempt0-21swapper/123:36:551
81680rcu_preempt0-21swapper/100:27:221
81670rcu_preempt31198-21sh22:37:580
81670rcu_preempt0-21swapper/121:17:061
81670rcu_preempt0-21swapper/100:35:121
81670rcu_preempt0-21swapper/100:35:121
81670rcu_preempt0-21swapper/022:23:250
81670rcu_preempt0-21swapper/022:01:500
81660rcu_preempt30368-21cron19:55:190
81660rcu_preempt22797-21/usr/sbin/munin19:25:200
81660rcu_preempt18539-21sh22:15:180
81660rcu_preempt13825-21latency20:55:390
81660rcu_preempt13655-21cut23:05:421
81660rcu_preempt0-21swapper/122:12:051
81660rcu_preempt0-21swapper/121:45:451
81660rcu_preempt0-21swapper/121:45:451
81660rcu_preempt0-21swapper/100:00:151
81660rcu_preempt0-21swapper/022:25:530
81660rcu_preempt0-21swapper/019:13:480
81650rcu_preempt30361-21mailstats22:35:441
81650rcu_preempt0-21swapper/123:44:441
81650rcu_preempt0-21swapper/122:53:021
81650rcu_preempt0-21swapper/122:00:181
81640rcu_preempt18208-21diskmemload00:07:141
81640rcu_preempt0-21swapper/123:13:271
81640rcu_preempt0-21swapper/120:32:451
81640rcu_preempt0-21swapper/120:20:351
81640rcu_preempt0-21swapper/119:50:491
81640rcu_preempt0-21swapper/119:30:371
81640rcu_preempt0-21swapper/022:59:100
81630rcu_preempt31823-21ssh00:41:161
81620rcu_preempt27070-21ssh21:30:370
81620rcu_preempt2661-21ntpq20:10:421
81620rcu_preempt23328-21ssh23:24:391
81620rcu_preempt20642-21ssh22:18:331
81620rcu_preempt0-21swapper/121:51:161
81620rcu_preempt0-21swapper/023:25:480
81620rcu_preempt0-21swapper/023:02:520
81620rcu_preempt0-21swapper/022:41:480
81620rcu_preempt0-21swapper/000:05:310
81610rcu_preempt32275-21ssh21:40:261
81610rcu_preempt21905-21df_abs19:20:341
81610rcu_preempt21689-21if_can121:20:380
81610rcu_preempt0-21swapper/123:29:171
81610rcu_preempt0-21swapper/122:55:431
81610rcu_preempt0-21swapper/122:01:541
81610rcu_preempt0-21swapper/121:30:431
81610rcu_preempt0-21swapper/023:30:450
81610rcu_preempt0-21swapper/021:56:430
81600rcu_preempt4678-21ssh22:49:351
81600rcu_preempt3438-21ssh23:46:271
81600rcu_preempt30512-21/usr/sbin/munin19:55:430
81600rcu_preempt27727-21ssh00:35:271
81600rcu_preempt27727-21ssh00:35:271
81600rcu_preempt2192-21snmpd20:02:051
81600rcu_preempt15615-21ssh22:09:351
81600rcu_preempt0-21swapper/120:35:411
81600rcu_preempt0-21swapper/021:40:070
81600rcu_preempt0-21swapper/000:00:410
89550590irq/17-ehci_hcd12032-21/usr/sbin/munin20:50:420
81590rcu_preempt27335-21missed_timers19:40:411
81590rcu_preempt25512-21ssh22:26:281
81590rcu_preempt20843-21irqstats19:15:381
81590rcu_preempt0-21swapper/121:25:501
81590rcu_preempt0-21swapper/120:50:361
81590rcu_preempt0-21swapper/119:57:041
81590rcu_preempt0-21swapper/023:48:390
81590rcu_preempt0-21swapper/023:20:420
81590rcu_preempt0-21swapper/023:15:370
81590rcu_preempt0-21swapper/022:48:450
81590rcu_preempt0-21swapper/000:30:440
81590rcu_preempt0-21swapper/000:30:440
81580rcu_preempt9193-21ssh23:58:020
81580rcu_preempt3442-21diskstats20:15:351
81580rcu_preempt2192-21snmpd21:02:181
81580rcu_preempt12752-21ssh23:04:531
81580rcu_preempt11026-21diskstats20:45:361
81580rcu_preempt0-21swapper/120:41:411
81580rcu_preempt0-21swapper/119:35:411
81580rcu_preempt0-21swapper/119:26:201
81580rcu_preempt0-21swapper/023:40:470
81580rcu_preempt0-21swapper/019:35:400
81570rcu_preempt6091-21switchtime22:50:470
81570rcu_preempt5727-21/usr/sbin/munin20:25:331
81570rcu_preempt5727-21/usr/sbin/munin20:25:331
81570rcu_preempt20367-21ssh21:18:110
81570rcu_preempt13139-21ssh23:05:350
81570rcu_preempt0-21swapper/021:29:540
81570rcu_preempt0-21swapper/020:40:380
81570rcu_preempt0-21swapper/020:22:090
81560rcu_preempt3-21ksoftirqd/023:37:360
81560rcu_preempt2192-21snmpd20:07:061
81560rcu_preempt21130-21python00:20:450
81560rcu_preempt18208-21diskmemload21:46:580
81560rcu_preempt18208-21diskmemload21:46:580
81560rcu_preempt0-21swapper/020:30:330
81560rcu_preempt0-21swapper/019:15:410
81550rcu_preempt17861-21ps21:10:420
81550rcu_preempt1568-21python20:05:450
81550rcu_preempt0-21swapper/021:50:410
81550rcu_preempt0-21swapper/021:00:380
81550rcu_preempt0-21swapper/019:25:390
81550rcu_preempt0-21swapper/000:10:490
81540rcu_preempt11555-21ps20:45:440
81540rcu_preempt0-21swapper/021:44:430
81540rcu_preempt0-21swapper/020:01:440
81540rcu_preempt0-21swapper/019:45:300
81540rcu_preempt0-21swapper/000:17:340
81530rcu_preempt14011-21ntp_states20:55:421
81530rcu_preempt0-21swapper/019:30:330
81530rcu_preempt0-21swapper/000:25:400
81520rcu_preempt16552-21ntp_states21:05:431
81520rcu_preempt0-21swapper/121:13:291
81520rcu_preempt0-21swapper/020:36:060
146250520irq/28-eth0-rx-41ktimersoftd/021:06:540
146250520irq/28-eth0-rx-41ktimersoftd/020:11:020
81510rcu_preempt0-21swapper/119:45:461
81450rcu_preempt27208-21irqstats19:40:390
81430rcu_preempt3436-21df_inode20:15:340
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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