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2026-11-15 - 04:03
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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 376 highest latencies:
System rackcslot3.osadl.org (updated Sun Nov 15, 2026 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
811020rcu_preempt11404-21ssh23:09:180
81850rcu_preempt0-21swapper/119:04:331
81730rcu_preempt16356-21diskmemload22:15:061
81730rcu_preempt0-21swapper/019:09:340
81710rcu_preempt22300-21sh00:31:020
81710rcu_preempt2118-21sh23:53:031
81710rcu_preempt18041-21ssh22:19:361
81700rcu_preempt26558-21sh21:34:311
81700rcu_preempt0-21swapper/122:51:471
81700rcu_preempt0-21swapper/121:54:281
81700rcu_preempt0-21swapper/121:14:441
81700rcu_preempt0-21swapper/119:39:411
81700rcu_preempt0-21swapper/023:34:340
81690rcu_preempt9737-21sh00:07:540
81690rcu_preempt9737-21sh00:07:540
81690rcu_preempt26121-21munin-plugin-st19:54:201
81690rcu_preempt14564-21df_abs23:14:330
81690rcu_preempt12754-21diskmemload23:58:231
81690rcu_preempt0-21swapper/121:40:091
81690rcu_preempt0-21swapper/121:14:071
81690rcu_preempt0-21swapper/120:49:391
81690rcu_preempt0-21swapper/022:25:310
81680rcu_preempt27467-21latency_hist19:59:211
81680rcu_preempt0-21swapper/121:24:121
81680rcu_preempt0-21swapper/021:18:020
81670rcu_preempt4829-21cat22:54:461
81670rcu_preempt28980-21missed_timers22:39:441
81670rcu_preempt13352-21ntp_states22:09:430
81670rcu_preempt0-21swapper/000:13:140
89550660irq/17-ehci_hcd41ktimersoftd/019:04:300
81660rcu_preempt26968-21grep19:54:430
81660rcu_preempt23103-21rm22:29:341
81660rcu_preempt21075-21munin-run19:34:201
81660rcu_preempt0-21swapper/123:20:381
81660rcu_preempt0-21swapper/119:35:531
81660rcu_preempt0-21swapper/100:03:261
81650rcu_preempt16599-21iwlist19:14:391
81650rcu_preempt12754-21diskmemload23:12:281
81650rcu_preempt0-21swapper/120:23:231
81650rcu_preempt0-21swapper/021:29:140
81650rcu_preempt0-21swapper/019:44:380
81640rcu_preempt22752-21grep23:29:431
81640rcu_preempt12060-21if_eth121:04:400
89950630irq/17-ehci_hcd945-21usb-storage00:11:051
81630rcu_preempt28938-21ssh23:42:021
81630rcu_preempt22754-21ssh21:26:241
81630rcu_preempt20946-21ssh23:26:201
81630rcu_preempt19-21ksoftirqd/100:30:431
81630rcu_preempt0-21swapper/022:59:450
81630rcu_preempt0-21swapper/022:14:380
81630rcu_preempt0-21swapper/021:50:190
81620rcu_preempt24142-21ssh21:29:381
81620rcu_preempt0-21swapper/123:37:111
81620rcu_preempt0-21swapper/122:47:251
81620rcu_preempt0-21swapper/120:54:471
81620rcu_preempt0-21swapper/119:44:391
81620rcu_preempt0-21swapper/100:36:031
81620rcu_preempt0-21swapper/100:29:171
81620rcu_preempt0-21swapper/021:59:400
81620rcu_preempt0-21swapper/020:44:390
81620rcu_preempt0-21swapper/000:01:360
81610rcu_preempt5318-21/usr/sbin/munin20:39:470
81610rcu_preempt4469-21ssh23:57:210
81610rcu_preempt15437-21munin-run00:19:210
81610rcu_preempt1147-21ssh21:47:091
81610rcu_preempt0-21swapper/122:28:261
81610rcu_preempt0-21swapper/122:13:591
81610rcu_preempt0-21swapper/122:08:431
81610rcu_preempt0-21swapper/121:59:481
81610rcu_preempt0-21swapper/120:39:061
81610rcu_preempt0-21swapper/100:14:341
81610rcu_preempt0-21swapper/023:49:370
81610rcu_preempt0-21swapper/022:39:430
81610rcu_preempt0-21swapper/021:34:400
81610rcu_preempt0-21swapper/021:32:530
81600rcu_preempt31482-21rm23:46:441
81600rcu_preempt27323-21ssh22:36:370
81600rcu_preempt21082-21munin-run19:34:200
81600rcu_preempt16543-21ssh23:18:481
81600rcu_preempt11625-21ssh23:09:320
81590rcu_preempt29615-21cron23:44:200
81590rcu_preempt0-21swapper/123:00:141
81590rcu_preempt0-21swapper/121:04:481
81590rcu_preempt0-21swapper/120:59:401
81590rcu_preempt0-21swapper/100:21:271
81590rcu_preempt0-21swapper/023:48:550
81590rcu_preempt0-21swapper/022:52:270
81590rcu_preempt0-21swapper/022:48:130
89950580irq/17-ehci_hcd0-21swapper/122:36:461
81580rcu_preempt3537-21ssh21:50:401
81580rcu_preempt30881-21gzip20:09:451
81580rcu_preempt23181-21ssh23:29:510
81580rcu_preempt10214-21/usr/sbin/munin20:59:210
81580rcu_preempt0-21swapper/123:04:461
81580rcu_preempt0-21swapper/120:39:461
81580rcu_preempt0-21swapper/022:56:380
81580rcu_preempt0-21swapper/021:41:500
81580rcu_preempt0-21swapper/021:19:450
81580rcu_preempt0-21swapper/020:29:400
81580rcu_preempt0-21swapper/019:14:340
81570rcu_preempt19596-21/usr/sbin/munin19:24:481
81570rcu_preempt19550-21ssh00:25:250
81570rcu_preempt19139-21ssh22:20:280
81570rcu_preempt0-21swapper/100:04:371
81570rcu_preempt0-21swapper/100:04:371
81570rcu_preempt0-21swapper/023:19:360
81570rcu_preempt0-21swapper/022:05:530
81570rcu_preempt0-21swapper/021:59:150
81560rcu_preempt13369-21ssh21:09:380
81560rcu_preempt11421-21grep20:59:460
81560rcu_preempt0-21swapper/120:48:241
81560rcu_preempt0-21swapper/023:24:320
81560rcu_preempt0-21swapper/020:04:400
81550rcu_preempt23111-21ssh22:29:350
81550rcu_preempt0-21swapper/120:27:321
81550rcu_preempt0-21swapper/019:59:450
81550rcu_preempt0-21swapper/019:38:270
81550rcu_preempt0-21swapper/019:24:410
81540rcu_preempt12754-21diskmemload00:37:500
81540rcu_preempt0-21swapper/120:05:501
81540rcu_preempt0-21swapper/119:10:431
81540rcu_preempt0-21swapper/020:54:210
81540rcu_preempt0-21swapper/000:22:050
81530rcu_preempt0-21swapper/021:47:200
81510rcu_preempt0-21swapper/120:32:511
81500rcu_preempt0-21swapper/020:23:200
14772995047cyclictest945-21usb-storage20:14:331
81490rcu_preempt23063-21memory19:39:400
81490rcu_preempt0-21swapper/019:53:090
81480rcu_preempt4289-21df_inode20:34:350
81450rcu_preempt18363-21python19:19:451
81440rcu_preempt31877-21memory20:14:400
81410rcu_preempt1759-21diskstats20:24:360
147950410irq/30-eth0-tx-0-21swapper/020:09:340
81400rcu_preempt2096-21snmpd19:21:230
89950350irq/17-ehci_hcd945-21usb-storage19:59:291
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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