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2026-04-21 - 20:07
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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 Tue Apr 21, 2026 12:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81800rcu_preempt2138-21snmpd12:40:501
81790rcu_preempt19-21ksoftirqd/110:27:191
81760rcu_preempt13337-21ps08:21:120
81760rcu_preempt12458-21ssh10:49:310
81730rcu_preempt19-21ksoftirqd/112:13:501
81720rcu_preempt0-21swapper/010:01:030
81710rcu_preempt19-21ksoftirqd/111:40:291
81710rcu_preempt15462-1kworker/0:1H10:55:580
81710rcu_preempt0-21swapper/012:42:400
81710rcu_preempt0-21swapper/012:35:380
81710rcu_preempt0-21swapper/012:21:100
81710rcu_preempt0-21swapper/011:34:290
81710rcu_preempt0-21swapper/010:18:300
81710rcu_preempt0-21swapper/009:20:490
81700rcu_preempt31069-21ssh11:23:140
81700rcu_preempt0-21swapper/007:56:070
81690rcu_preempt26361-21diskmemload10:38:340
81690rcu_preempt0-21swapper/012:15:210
81680rcu_preempt0-21swapper/107:11:231
81670rcu_preempt16665-21ssh11:56:120
81660rcu_preempt8059-21sshd11:41:050
89450650irq/17-ehci_hcd20279-21ssh10:04:331
81650rcu_preempt6091-21cat11:36:140
81650rcu_preempt27442-21netstat12:16:090
81650rcu_preempt14863-21sh09:54:370
81650rcu_preempt0-21swapper/111:16:591
81640rcu_preempt6120-21munin-run07:55:480
81640rcu_preempt0-21swapper/112:33:561
81630rcu_preempt0-21swapper/012:37:200
81630rcu_preempt0-21swapper/009:02:100
81620rcu_preempt2157-21ssh12:30:151
81620rcu_preempt17990-21ssh10:00:391
81620rcu_preempt17990-21ssh10:00:391
81620rcu_preempt17572-21ssh11:57:531
81620rcu_preempt0-21swapper/112:37:181
81620rcu_preempt0-21swapper/112:25:121
81620rcu_preempt0-21swapper/111:23:011
81620rcu_preempt0-21swapper/110:10:531
81620rcu_preempt0-21swapper/012:05:330
81620rcu_preempt0-21swapper/011:06:090
81620rcu_preempt0-21swapper/010:25:590
81620rcu_preempt0-21swapper/010:06:050
81620rcu_preempt0-21swapper/009:16:110
81620rcu_preempt0-21swapper/008:51:070
81610rcu_preempt9372-21ssh09:44:091
81610rcu_preempt936-21ssh09:26:381
81610rcu_preempt14192-21ssh09:52:331
81610rcu_preempt0-21swapper/111:15:441
81610rcu_preempt0-21swapper/110:51:041
81610rcu_preempt0-21swapper/110:25:011
81610rcu_preempt0-21swapper/109:49:071
81610rcu_preempt0-21swapper/109:16:481
81610rcu_preempt0-21swapper/109:01:011
81610rcu_preempt0-21swapper/010:31:100
81610rcu_preempt0-21swapper/009:26:140
81600rcu_preempt6815-21ssh10:39:111
81600rcu_preempt5812-21switchtime09:36:130
81600rcu_preempt3881-21ssh11:32:411
81600rcu_preempt31596-21ssh09:24:481
81600rcu_preempt23698-21ssh12:10:311
81600rcu_preempt20836-21ssh11:05:221
81600rcu_preempt15462-1kworker/0:1H12:27:330
81600rcu_preempt0-21swapper/111:30:121
81600rcu_preempt0-21swapper/110:43:141
81600rcu_preempt0-21swapper/110:33:161
81600rcu_preempt0-21swapper/110:16:121
81600rcu_preempt0-21swapper/009:56:090
81600rcu_preempt0-21swapper/009:56:090
81590rcu_preempt8633-21idleruntime-cro08:05:480
81590rcu_preempt6448-21ssh09:38:071
81590rcu_preempt26024-21rm11:14:430
81590rcu_preempt22840-21ssh11:07:471
81590rcu_preempt2138-21snmpd08:20:300
81590rcu_preempt13960-21tr08:26:000
81590rcu_preempt0-21swapper/112:19:321
81590rcu_preempt0-21swapper/111:54:211
81590rcu_preempt0-21swapper/110:59:381
81590rcu_preempt0-21swapper/108:40:361
81590rcu_preempt0-21swapper/107:46:151
81590rcu_preempt0-21swapper/107:45:041
81590rcu_preempt0-21swapper/107:31:061
81590rcu_preempt0-21swapper/011:49:570
81590rcu_preempt0-21swapper/011:26:530
81580rcu_preempt12454-21ssh10:49:311
81580rcu_preempt1109-21latency_hist07:35:490
81580rcu_preempt10043-21munin-run10:45:480
81580rcu_preempt0-21swapper/110:10:291
81580rcu_preempt0-21swapper/109:31:021
81580rcu_preempt0-21swapper/108:42:041
81580rcu_preempt0-21swapper/011:02:050
81570rcu_preempt9353-21ssh11:42:411
81570rcu_preempt2439-21diskstats09:31:020
81570rcu_preempt20710-21ssh12:04:461
81570rcu_preempt18773-21sshd08:45:230
81570rcu_preempt0-21swapper/108:51:071
81570rcu_preempt0-21swapper/108:06:061
81570rcu_preempt0-21swapper/108:04:331
81570rcu_preempt0-21swapper/010:21:070
81570rcu_preempt0-21swapper/009:46:160
81560rcu_preempt7342-21apt-get09:41:010
81560rcu_preempt29480-21kworker/0:207:11:050
81560rcu_preempt28818-21rm11:19:560
81560rcu_preempt14333-21ssh11:51:200
81560rcu_preempt12045-21ssh11:47:511
81560rcu_preempt0-21swapper/108:30:451
81560rcu_preempt0-21swapper/108:16:091
81560rcu_preempt0-21swapper/108:15:171
81560rcu_preempt0-21swapper/107:23:291
81560rcu_preempt0-21swapper/012:06:000
81560rcu_preempt0-21swapper/009:06:020
81560rcu_preempt0-21swapper/007:22:480
81550rcu_preempt14214-21ssh10:51:200
81550rcu_preempt0-21swapper/109:15:221
81550rcu_preempt0-21swapper/109:06:021
81550rcu_preempt0-21swapper/108:32:031
81550rcu_preempt0-21swapper/107:19:031
81550rcu_preempt0-21swapper/010:12:190
81550rcu_preempt0-21swapper/008:13:480
81550rcu_preempt0-21swapper/007:41:040
81540rcu_preempt0-21swapper/107:37:531
81540rcu_preempt0-21swapper/008:47:030
81530rcu_preempt31795-21ntp_states07:26:101
81530rcu_preempt0-21swapper/009:13:530
81530rcu_preempt0-21swapper/008:33:480
81530rcu_preempt0-21swapper/007:18:060
81520rcu_preempt9398-21missed_timers08:06:090
81520rcu_preempt31078-21egrep07:26:010
81520rcu_preempt0-21swapper/107:52:191
81520rcu_preempt0-21swapper/007:49:560
81520rcu_preempt0-21swapper/007:37:590
28399995148cyclictest945-21usb-storage08:36:030
28400994744cyclictest945-21usb-storage08:56:011
89850450irq/17-ehci_hcd945-21usb-storage08:25:481
147950440irq/31-eth0-tx-19-21ksoftirqd/108:00:071
89850390irq/17-ehci_hcd19309-21/usr/sbin/munin08:46:071
147850340irq/30-eth0-tx-21453-21/usr/sbin/munin08:56:120
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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