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2026-05-15 - 03:49
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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 all highest latencies:
System rackcslot3.osadl.org (updated Fri May 15, 2026 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81780rcu_preempt0-21swapper/023:12:130
81730rcu_preempt4920-21k10sensors20:06:440
81730rcu_preempt26619-21ssh22:19:330
81720rcu_preempt31774-1kworker/0:1H00:36:310
81710rcu_preempt18886-21ssh22:06:000
81710rcu_preempt0-21swapper/023:46:410
81700rcu_preempt0-21swapper/022:49:280
81700rcu_preempt0-21swapper/019:11:180
89950680irq/17-ehci_hcd945-21usb-storage23:34:251
81680rcu_preempt6622-21ssh23:41:350
81680rcu_preempt26449-21sh22:19:011
81680rcu_preempt20338-21diskmemload00:02:260
81680rcu_preempt0-21swapper/123:11:561
81680rcu_preempt0-21swapper/123:11:141
81680rcu_preempt0-21swapper/121:13:231
81680rcu_preempt0-21swapper/022:53:380
146650680irq/31-eth0-tx-181ktimersoftd/123:22:421
81670rcu_preempt22048-21sendmail_mailst19:06:411
81670rcu_preempt0-21swapper/123:59:311
81670rcu_preempt0-21swapper/121:35:081
81670rcu_preempt0-21swapper/121:06:441
81660rcu_preempt3198-21/usr/sbin/munin22:36:361
81660rcu_preempt26207-21munin-run21:21:180
81660rcu_preempt14998-21sendmail_mailqu20:46:420
81650rcu_preempt26686-21ssh00:19:161
81650rcu_preempt0-21swapper/122:46:401
81650rcu_preempt0-21swapper/023:11:080
81640rcu_preempt16190-21proc_pri20:51:411
81640rcu_preempt13099-21ssh22:53:251
81640rcu_preempt0-21swapper/123:36:571
81640rcu_preempt0-21swapper/120:12:251
81640rcu_preempt0-21swapper/100:26:091
81640rcu_preempt0-21swapper/022:43:510
81640rcu_preempt0-21swapper/021:37:410
81640rcu_preempt0-21swapper/021:21:290
81640rcu_preempt0-21swapper/000:29:150
81630rcu_preempt8296-21ssh23:44:351
81630rcu_preempt30102-21cut22:26:300
81630rcu_preempt28669-21/usr/sbin/munin19:36:180
81630rcu_preempt0-21swapper/121:50:211
81630rcu_preempt0-21swapper/100:36:501
81630rcu_preempt0-21swapper/023:59:210
81630rcu_preempt0-21swapper/020:56:180
81630rcu_preempt0-21swapper/000:21:330
81620rcu_preempt23418-21ssh22:13:101
81620rcu_preempt14941-21ps20:46:421
81620rcu_preempt0-21swapper/122:24:191
81620rcu_preempt0-21swapper/100:14:141
81620rcu_preempt0-21swapper/022:31:400
81620rcu_preempt0-21swapper/022:07:020
81620rcu_preempt0-21swapper/021:56:280
89950610irq/17-ehci_hcd1189-21ps22:31:421
81610rcu_preempt4865-21ssh23:37:120
81610rcu_preempt0-21swapper/123:49:511
81610rcu_preempt0-21swapper/122:30:181
81610rcu_preempt0-21swapper/122:04:551
81610rcu_preempt0-21swapper/121:59:201
81610rcu_preempt0-21swapper/121:54:261
81610rcu_preempt0-21swapper/100:26:391
81610rcu_preempt0-21swapper/100:02:131
81600rcu_preempt7297-21ssh21:44:470
81600rcu_preempt7156-21ssh21:44:201
81600rcu_preempt20338-21diskmemload23:53:130
81600rcu_preempt20338-21diskmemload22:11:340
81600rcu_preempt18284-21ssh23:02:421
81600rcu_preempt13551-21ssh23:53:271
81600rcu_preempt0-21swapper/121:37:201
81600rcu_preempt0-21swapper/121:16:411
81600rcu_preempt0-21swapper/119:54:251
81600rcu_preempt0-21swapper/119:46:361
81600rcu_preempt0-21swapper/119:16:361
81590rcu_preempt554-21ssh00:31:221
81590rcu_preempt28041-21ssh21:23:201
81590rcu_preempt27353-21ssh23:20:450
81590rcu_preempt27353-21ssh23:20:450
81590rcu_preempt26155-21ssh23:16:481
81590rcu_preempt26155-21ssh23:16:481
81590rcu_preempt20357-21ssh22:06:471
81590rcu_preempt0-21swapper/123:26:211
81590rcu_preempt0-21swapper/122:45:161
81590rcu_preempt0-21swapper/119:56:421
81590rcu_preempt0-21swapper/119:16:121
81590rcu_preempt0-21swapper/100:07:291
81590rcu_preempt0-21swapper/022:39:110
81590rcu_preempt0-21swapper/000:14:290
81580rcu_preempt31950-21ssh23:27:470
81580rcu_preempt2192-21snmpd21:03:220
81580rcu_preempt0-21swapper/122:57:331
81580rcu_preempt0-21swapper/021:49:190
81580rcu_preempt0-21swapper/021:31:380
81580rcu_preempt0-21swapper/021:11:400
81580rcu_preempt0-21swapper/021:06:330
81580rcu_preempt0-21swapper/019:54:130
81580rcu_preempt0-21swapper/019:41:320
81570rcu_preempt29365-21ssh23:23:110
81570rcu_preempt2192-21snmpd19:43:071
81570rcu_preempt21193-21/usr/sbin/munin19:06:410
81570rcu_preempt0-21swapper/120:02:091
81570rcu_preempt0-21swapper/020:31:430
81570rcu_preempt0-21swapper/019:26:360
81570rcu_preempt0-21swapper/000:16:520
81560rcu_preempt18134-21ssh23:02:150
81560rcu_preempt12089-21if_wlan020:36:380
81560rcu_preempt0-21swapper/121:28:341
81560rcu_preempt0-21swapper/120:56:311
81560rcu_preempt0-21swapper/120:06:441
81560rcu_preempt0-21swapper/022:58:530
81560rcu_preempt0-21swapper/022:22:160
81560rcu_preempt0-21swapper/021:29:290
81560rcu_preempt0-21swapper/019:56:370
81560rcu_preempt0-21swapper/000:34:390
81550rcu_preempt26133-21sshd19:26:101
81550rcu_preempt0-21swapper/121:01:521
81550rcu_preempt0-21swapper/120:21:131
81550rcu_preempt0-21swapper/119:34:331
81550rcu_preempt0-21swapper/023:33:100
81550rcu_preempt0-21swapper/021:51:340
81540rcu_preempt0-21swapper/120:21:231
81540rcu_preempt0-21swapper/020:17:330
22357995444cyclictest945-21usb-storage20:35:301
81530rcu_preempt11897-21fw_conntrack20:36:351
81530rcu_preempt0-21swapper/020:51:500
81530rcu_preempt0-21swapper/020:46:000
81530rcu_preempt0-21swapper/000:06:410
81520rcu_preempt0-21swapper/020:26:080
81520rcu_preempt0-21swapper/020:01:430
81520rcu_preempt0-21swapper/019:47:500
81520rcu_preempt0-21swapper/019:18:150
22357995148cyclictest945-21usb-storage20:31:081
22357995047cyclictest945-21usb-storage19:37:251
81490rcu_preempt0-21swapper/020:27:450
22357994643cyclictest945-21usb-storage20:41:391
146250460irq/28-eth0-rx-0-21swapper/019:21:280
22357994441cyclictest945-21usb-storage19:29:011
22356994312cyclictest26763-21kworker/0:020:12:100
81390rcu_preempt29046-21diskstats19:36:320
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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