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2026-04-30 - 15:38
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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 100 highest latencies:
System rackcslot3.osadl.org (updated Thu Apr 30, 2026 12:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
89950770irq/17-ehci_hcd0-21swapper/111:08:281
89950730irq/17-ehci_hcd26108-21ssh12:38:001
81710rcu_preempt25933-21cpuspeed_turbos09:55:181
81710rcu_preempt12466-21ssh11:19:211
81700rcu_preempt31276-21diskmemload09:14:081
81700rcu_preempt22695-21if_wlan008:30:221
81690rcu_preempt6088-21sh10:12:350
81690rcu_preempt3980-21cut12:00:181
81690rcu_preempt0-21swapper/107:05:141
81680rcu_preempt1423-21systemd-logind08:35:521
81680rcu_preempt11590-21ssh09:30:231
81680rcu_preempt0-21swapper/010:50:120
81670rcu_preempt25544-21sh09:54:490
81670rcu_preempt0-21swapper/112:30:301
81670rcu_preempt0-21swapper/111:30:171
81670rcu_preempt0-21swapper/012:10:260
81670rcu_preempt0-21swapper/011:47:150
81660rcu_preempt7009-21munin-run10:15:041
81660rcu_preempt26514-21sh11:42:571
81660rcu_preempt0-21swapper/111:12:511
81660rcu_preempt0-21swapper/111:00:191
81660rcu_preempt0-21swapper/109:22:081
81650rcu_preempt6768-21apt-get12:05:150
81650rcu_preempt24554-21cat10:45:050
81650rcu_preempt24370-21munin-run11:40:051
81650rcu_preempt13825-21if_eth007:55:200
81650rcu_preempt0-21swapper/112:15:591
81650rcu_preempt0-21swapper/110:59:251
81640rcu_preempt26356-21df_abs08:45:180
81640rcu_preempt26057-21cron08:45:041
81640rcu_preempt0-21swapper/109:45:141
81640rcu_preempt0-21swapper/109:40:241
81640rcu_preempt0-21swapper/109:28:331
81640rcu_preempt0-21swapper/011:30:580
81640rcu_preempt0-21swapper/009:49:420
81630rcu_preempt28388-21ps08:55:230
81630rcu_preempt12019-21munin-run07:50:040
81630rcu_preempt0-21swapper/110:49:481
81630rcu_preempt0-21swapper/110:25:291
81630rcu_preempt0-21swapper/109:51:421
81630rcu_preempt0-21swapper/109:35:221
81630rcu_preempt0-21swapper/012:27:000
81630rcu_preempt0-21swapper/011:20:270
81630rcu_preempt0-21swapper/011:00:250
81630rcu_preempt0-21swapper/009:14:150
81620rcu_preempt28969-21ssh11:46:481
81620rcu_preempt26862-21sendmail-msp12:40:040
81620rcu_preempt0-21swapper/111:22:491
81620rcu_preempt0-21swapper/109:16:121
81620rcu_preempt0-21swapper/009:25:310
81620rcu_preempt0-21swapper/009:17:330
81610rcu_preempt2997-21ssh11:58:041
81610rcu_preempt0-21swapper/112:20:231
81610rcu_preempt0-21swapper/112:14:061
81610rcu_preempt0-21swapper/109:05:171
81610rcu_preempt0-21swapper/012:15:200
81610rcu_preempt0-21swapper/010:45:260
81610rcu_preempt0-21swapper/010:30:170
81610rcu_preempt0-21swapper/008:35:270
81600rcu_preempt814-21ssh10:04:221
81600rcu_preempt24359-21ssh10:44:401
81600rcu_preempt17950-21k10sensors09:40:290
81600rcu_preempt0-21swapper/112:25:291
81600rcu_preempt0-21swapper/110:23:491
81600rcu_preempt0-21swapper/108:11:491
81600rcu_preempt0-21swapper/011:28:480
81600rcu_preempt0-21swapper/009:58:030
81590rcu_preempt3203-21ssh10:07:231
81590rcu_preempt31744-21ssh11:51:081
81590rcu_preempt17620-21ssh11:27:201
81590rcu_preempt10828-1kworker/1:1H10:16:091
81590rcu_preempt10828-1kworker/1:1H10:16:091
81590rcu_preempt0-21swapper/110:35:241
81590rcu_preempt0-21swapper/110:31:511
81590rcu_preempt0-21swapper/107:20:231
81590rcu_preempt0-21swapper/010:05:530
81590rcu_preempt0-21swapper/009:31:490
81590rcu_preempt0-21swapper/008:05:260
81590rcu_preempt0-21swapper/007:25:510
81580rcu_preempt0-21swapper/112:05:211
81580rcu_preempt0-21swapper/110:54:411
81580rcu_preempt0-21swapper/010:26:230
81580rcu_preempt0-21swapper/010:02:410
81580rcu_preempt0-21swapper/009:35:200
81580rcu_preempt0-21swapper/009:20:330
81580rcu_preempt0-21swapper/007:30:190
81570rcu_preempt28946-21egrep09:00:171
81570rcu_preempt27884-21fw_forwarded_lo08:55:171
81570rcu_preempt0-21swapper/108:00:291
81570rcu_preempt0-21swapper/107:32:301
81570rcu_preempt0-21swapper/107:25:221
81570rcu_preempt0-21swapper/107:11:191
81570rcu_preempt0-21swapper/011:40:280
81570rcu_preempt0-21swapper/007:40:210
81560rcu_preempt10349-21ntpdc07:40:261
81560rcu_preempt0-21swapper/011:52:300
81560rcu_preempt0-21swapper/011:10:290
81560rcu_preempt0-21swapper/011:07:450
81560rcu_preempt0-21swapper/010:22:160
81560rcu_preempt0-21swapper/009:00:380
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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