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2026-03-15 - 19:25
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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 Sun Mar 15, 2026 12:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81740rcu_preempt919-21sh10:20:010
81730rcu_preempt0-21swapper/108:29:321
81720rcu_preempt0-21swapper/109:41:501
81700rcu_preempt4707-21ssh12:31:050
81700rcu_preempt28330-21ssh10:10:281
81700rcu_preempt0-21swapper/110:24:361
81700rcu_preempt0-21swapper/011:13:080
81690rcu_preempt9832-1kworker/0:1H10:46:450
81690rcu_preempt9040-21sh11:38:510
81690rcu_preempt29670-21diskmemload12:18:370
81690rcu_preempt0-21swapper/111:24:361
81680rcu_preempt29670-21diskmemload12:31:121
81680rcu_preempt24349-21k10sensors08:49:320
81680rcu_preempt19647-21apt-get08:34:191
81680rcu_preempt0-21swapper/111:16:181
81670rcu_preempt8285-21/usr/sbin/munin07:49:190
81670rcu_preempt5768-21ssh12:34:220
81670rcu_preempt19189-21df_abs09:54:221
81670rcu_preempt0-21swapper/111:33:131
81670rcu_preempt0-21swapper/111:11:481
81670rcu_preempt0-21swapper/109:22:231
81660rcu_preempt7880-21grep10:34:231
81660rcu_preempt2417-21apt-get10:24:210
81660rcu_preempt1921-21latency_hist07:24:090
81660rcu_preempt0-21swapper/112:13:451
81660rcu_preempt0-21swapper/110:31:421
81660rcu_preempt0-21swapper/107:10:431
81660rcu_preempt0-21swapper/010:18:010
81660rcu_preempt0-21swapper/010:05:540
81660rcu_preempt0-21swapper/009:51:490
81660rcu_preempt0-21swapper/008:59:280
81650rcu_preempt28428-21ntpq12:14:311
81650rcu_preempt14192-21ssh09:44:290
81650rcu_preempt14192-21ssh09:44:290
81650rcu_preempt1388-21grep11:24:100
81650rcu_preempt12800-21ntp_offset08:04:311
81650rcu_preempt12746-21munin-run10:44:090
81650rcu_preempt1261-21idleruntime-cro11:24:091
81650rcu_preempt0-21swapper/111:57:121
81650rcu_preempt0-21swapper/111:39:301
81650rcu_preempt0-21swapper/111:34:391
81650rcu_preempt0-21swapper/110:52:401
81650rcu_preempt0-21swapper/108:42:031
81640rcu_preempt6037-21tail10:29:360
81640rcu_preempt0-21swapper/111:51:271
81640rcu_preempt0-21swapper/111:07:171
81640rcu_preempt0-21swapper/110:23:161
81640rcu_preempt0-21swapper/107:44:301
81640rcu_preempt0-21swapper/011:54:210
81630rcu_preempt26737-21ntpq08:59:321
81630rcu_preempt0-21swapper/109:51:391
81630rcu_preempt0-21swapper/109:27:251
81630rcu_preempt0-21swapper/012:24:230
81630rcu_preempt0-21swapper/011:59:230
81630rcu_preempt0-21swapper/011:46:260
81630rcu_preempt0-21swapper/009:17:480
81630rcu_preempt0-21swapper/008:54:260
81630rcu_preempt0-21swapper/008:18:140
81630rcu_preempt0-21swapper/007:29:290
89850620irq/17-ehci_hcd19-21ksoftirqd/111:45:051
81620rcu_preempt2138-21snmpd08:13:370
81620rcu_preempt10125-21ssh09:36:431
81620rcu_preempt0-21swapper/112:19:301
81620rcu_preempt0-21swapper/111:03:391
81620rcu_preempt0-21swapper/109:09:091
81620rcu_preempt0-21swapper/107:59:321
81620rcu_preempt0-21swapper/010:13:070
81620rcu_preempt0-21swapper/009:59:360
81620rcu_preempt0-21swapper/009:28:040
81610rcu_preempt9837-21ssh11:39:280
81610rcu_preempt782-21kworker/0:207:09:330
81610rcu_preempt0-21swapper/112:35:511
81610rcu_preempt0-21swapper/112:27:041
81610rcu_preempt0-21swapper/112:01:451
81610rcu_preempt0-21swapper/110:05:491
81610rcu_preempt0-21swapper/108:19:351
81610rcu_preempt0-21swapper/107:23:061
81610rcu_preempt0-21swapper/011:29:250
81610rcu_preempt0-21swapper/010:34:490
81610rcu_preempt0-21swapper/007:48:120
81600rcu_preempt31700-21ssh09:16:391
81600rcu_preempt29670-21diskmemload12:08:050
81600rcu_preempt22019-21if_eth109:59:291
81600rcu_preempt20444-21ssh10:58:261
81600rcu_preempt15733-21ssh09:48:061
81600rcu_preempt15733-21ssh09:48:061
81600rcu_preempt0-21swapper/110:45:031
81600rcu_preempt0-21swapper/110:40:291
81600rcu_preempt0-21swapper/109:29:191
81600rcu_preempt0-21swapper/012:39:120
81600rcu_preempt0-21swapper/009:13:300
81600rcu_preempt0-21swapper/007:44:080
89850590irq/17-ehci_hcd3-21ksoftirqd/010:51:130
81590rcu_preempt32754-21ssh09:19:220
81590rcu_preempt29670-21diskmemload12:11:040
81590rcu_preempt0-21swapper/112:08:061
81590rcu_preempt0-21swapper/110:15:311
81590rcu_preempt0-21swapper/011:16:190
81590rcu_preempt0-21swapper/011:04:050
81580rcu_preempt8710-21ssh09:34:270
81580rcu_preempt0-21swapper/112:42:291
81580rcu_preempt0-21swapper/109:08:181
81580rcu_preempt0-21swapper/108:49:281
81580rcu_preempt0-21swapper/108:14:391
81580rcu_preempt0-21swapper/108:09:221
81580rcu_preempt0-21swapper/008:39:220
81580rcu_preempt0-21swapper/007:19:310
81570rcu_preempt3084-21sshd07:28:071
81570rcu_preempt0-21swapper/108:57:311
81570rcu_preempt0-21swapper/107:57:311
81570rcu_preempt0-21swapper/107:36:271
81570rcu_preempt0-21swapper/107:18:091
81570rcu_preempt0-21swapper/012:22:510
81570rcu_preempt0-21swapper/011:51:260
81570rcu_preempt0-21swapper/010:55:310
81570rcu_preempt0-21swapper/009:32:200
81560rcu_preempt29670-21diskmemload09:56:480
81560rcu_preempt28390-21sshd09:08:020
81560rcu_preempt0-21swapper/011:22:460
81560rcu_preempt0-21swapper/009:39:440
81550rcu_preempt8771-21irqstats07:49:281
81550rcu_preempt0-21swapper/011:04:290
81550rcu_preempt0-21swapper/008:46:500
81550rcu_preempt0-21swapper/007:34:570
81540rcu_preempt0-21swapper/007:59:280
81530rcu_preempt12349-21fw_forwarded_lo08:04:260
81530rcu_preempt0-21swapper/008:21:180
89850520irq/17-ehci_hcd945-21usb-storage08:26:381
89850520irq/17-ehci_hcd945-21usb-storage08:26:381
81520rcu_preempt6324-21memory07:39:291
81520rcu_preempt0-21swapper/008:35:420
81520rcu_preempt0-21swapper/008:30:020
81520rcu_preempt0-21swapper/007:54:330
81520rcu_preempt0-21swapper/007:14:400
81510rcu_preempt0-21swapper/008:27:310
81510rcu_preempt0-21swapper/008:27:310
81460rcu_preempt3509-21/usr/sbin/munin07:29:251
3167999463cyclictest22189-21apt-esm-hook08:44:211
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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