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2026-03-30 - 18:11
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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 Mon Mar 30, 2026 12:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81800rcu_preempt12654-21munin-run11:29:501
81770rcu_preempt0-21swapper/007:10:150
81720rcu_preempt18775-21sh10:38:550
81710rcu_preempt6904-21diskmemload11:27:310
81710rcu_preempt27435-21uname10:55:100
81710rcu_preempt19987-1kworker/0:1H10:33:150
81710rcu_preempt0-21swapper/011:30:070
81700rcu_preempt32269-21apt-get11:05:020
81700rcu_preempt0-21swapper/009:36:150
81690rcu_preempt29610-21/usr/sbin/munin11:00:180
81690rcu_preempt20657-21df_abs09:40:030
81680rcu_preempt0-21swapper/011:20:260
81660rcu_preempt32322-21ssh12:05:491
81660rcu_preempt0-21swapper/109:51:531
81660rcu_preempt0-21swapper/010:49:110
89850650irq/17-ehci_hcd945-21usb-storage12:21:161
81650rcu_preempt26669-21ssh11:55:160
81650rcu_preempt0-21swapper/107:12:561
81640rcu_preempt16969-21if_eth012:40:091
81640rcu_preempt0-21swapper/109:29:051
81640rcu_preempt0-21swapper/011:11:120
81630rcu_preempt0-21swapper/110:20:471
81630rcu_preempt0-21swapper/009:27:410
81630rcu_preempt0-21swapper/009:15:010
81630rcu_preempt0-21swapper/007:49:260
81620rcu_preempt2201-21ssh11:09:401
81620rcu_preempt0-21swapper/110:48:431
81610rcu_preempt9890-21sshd11:24:111
81610rcu_preempt4849-21ssh10:10:221
81610rcu_preempt24097-21timerwakeupswit09:45:150
81610rcu_preempt21620-21ssh09:40:171
81610rcu_preempt21420-21ssh10:43:551
81610rcu_preempt15993-21ssh10:32:461
81610rcu_preempt15517-21ssh12:36:581
81610rcu_preempt0-21swapper/112:15:131
81610rcu_preempt0-21swapper/110:18:481
81610rcu_preempt0-21swapper/109:00:041
81610rcu_preempt0-21swapper/010:25:020
81610rcu_preempt0-21swapper/009:49:500
81610rcu_preempt0-21swapper/008:40:150
81610rcu_preempt0-21swapper/008:30:060
81610rcu_preempt0-21swapper/007:55:110
81600rcu_preempt4491-21ssh11:13:311
81600rcu_preempt3-21ksoftirqd/011:44:160
81600rcu_preempt25958-21ssh10:51:481
81600rcu_preempt22732-21ssh11:48:571
81600rcu_preempt19847-21ssh11:42:551
81600rcu_preempt19770-21ssh09:38:111
81600rcu_preempt15126-21ssh11:34:211
81600rcu_preempt0-21swapper/111:49:551
81600rcu_preempt0-21swapper/110:55:291
81600rcu_preempt0-21swapper/110:27:211
81600rcu_preempt0-21swapper/109:15:001
81600rcu_preempt0-21swapper/108:40:121
81600rcu_preempt0-21swapper/010:20:150
81600rcu_preempt0-21swapper/010:02:440
81590rcu_preempt6506-21ssh11:16:220
81590rcu_preempt549-21ssh10:04:151
81590rcu_preempt3665-21munin-run12:14:490
81590rcu_preempt30717-21ssh12:04:310
81590rcu_preempt30049-21ssh12:02:061
81590rcu_preempt29573-21ssh09:55:401
81590rcu_preempt27869-21ssh11:58:311
81590rcu_preempt24840-21ssh09:47:551
81590rcu_preempt20555-21grep08:00:040
81590rcu_preempt16765-21ssh11:35:551
81590rcu_preempt11732-21ssh09:22:271
81590rcu_preempt0-21swapper/111:00:121
81590rcu_preempt0-21swapper/109:10:151
81590rcu_preempt0-21swapper/108:50:051
81590rcu_preempt0-21swapper/108:25:151
81590rcu_preempt0-21swapper/108:10:141
81590rcu_preempt0-21swapper/012:43:140
81590rcu_preempt0-21swapper/012:26:340
81590rcu_preempt0-21swapper/012:20:360
81590rcu_preempt0-21swapper/011:52:040
81590rcu_preempt0-21swapper/011:46:130
81590rcu_preempt0-21swapper/009:30:060
81580rcu_preempt22813-21/usr/sbin/munin08:09:490
81580rcu_preempt2251-21ssh10:05:340
81580rcu_preempt20493-21ssh10:40:420
81580rcu_preempt18089-21ssh10:36:151
81580rcu_preempt15734-21ssh12:37:470
81580rcu_preempt0-21swapper/112:34:081
81580rcu_preempt0-21swapper/112:25:101
81580rcu_preempt0-21swapper/112:11:291
81580rcu_preempt0-21swapper/110:08:231
81580rcu_preempt0-21swapper/109:33:531
81580rcu_preempt0-21swapper/109:07:361
81580rcu_preempt0-21swapper/108:00:111
81580rcu_preempt0-21swapper/107:40:071
81580rcu_preempt0-21swapper/107:36:041
81580rcu_preempt0-21swapper/107:25:141
81580rcu_preempt0-21swapper/107:24:121
81570rcu_preempt32554-21ssh12:06:410
81570rcu_preempt2138-21snmpd07:17:410
81570rcu_preempt2138-21snmpd07:17:410
81570rcu_preempt11707-21cpuspeed_turbos07:25:040
81570rcu_preempt0-21swapper/111:15:211
81570rcu_preempt0-21swapper/108:38:131
81570rcu_preempt0-21swapper/012:33:100
81570rcu_preempt0-21swapper/012:17:200
81570rcu_preempt0-21swapper/011:35:250
81570rcu_preempt0-21swapper/010:51:100
81560rcu_preempt9901-21apt-get09:20:000
81560rcu_preempt7763-21ssh10:16:160
81560rcu_preempt18857-21grep07:50:150
81560rcu_preempt0-21swapper/108:20:041
81560rcu_preempt0-21swapper/107:46:051
81560rcu_preempt0-21swapper/009:55:100
81560rcu_preempt0-21swapper/009:09:580
81560rcu_preempt0-21swapper/008:55:500
81560rcu_preempt0-21swapper/008:50:030
81550rcu_preempt0-21swapper/108:49:321
81550rcu_preempt0-21swapper/108:17:101
81550rcu_preempt0-21swapper/010:10:400
81540rcu_preempt13102-21df_inode07:30:021
81540rcu_preempt0-21swapper/108:04:561
81540rcu_preempt0-21swapper/009:05:080
81540rcu_preempt0-21swapper/008:25:100
81540rcu_preempt0-21swapper/007:42:330
81530rcu_preempt32114-21fw_forwarded_lo08:45:050
81530rcu_preempt24033-21users08:10:160
81530rcu_preempt0-21swapper/008:38:150
81530rcu_preempt0-21swapper/007:22:330
81520rcu_preempt3681-21if_eth109:00:080
81520rcu_preempt0-21swapper/008:20:400
81510rcu_preempt9324-21fw_conntrack07:15:091
81510rcu_preempt9324-21fw_conntrack07:15:091
81510rcu_preempt28725-21ntp_states08:30:101
81510rcu_preempt0-21swapper/107:57:041
81510rcu_preempt0-21swapper/007:30:120
81500rcu_preempt0-21swapper/108:56:581
147950500irq/31-eth0-tx-945-21usb-storage07:35:320
8930994845cyclictest945-21usb-storage07:50:101
81470rcu_preempt0-21swapper/008:15:180
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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