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2026-05-24 - 09:57
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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 May 24, 2026 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
146650890irq/31-eth0-tx-23931-1kworker/1:2H23:30:551
81830rcu_preempt0-21swapper/100:16:221
81790rcu_preempt19-21ksoftirqd/100:22:061
81770rcu_preempt0-21swapper/119:10:081
81760rcu_preempt19074-21diskmemload21:36:321
81760rcu_preempt19-21ksoftirqd/122:04:571
81750rcu_preempt19-21ksoftirqd/100:29:291
81740rcu_preempt0-21swapper/123:50:041
81740rcu_preempt0-21swapper/121:12:221
81730rcu_preempt22197-21/usr/sbin/munin21:17:221
81730rcu_preempt19-21ksoftirqd/121:44:001
81730rcu_preempt0-21swapper/123:34:531
81730rcu_preempt0-21swapper/122:22:261
81720rcu_preempt22911-21strings21:17:260
81710rcu_preempt0-21swapper/020:22:190
81700rcu_preempt30939-21df_inode22:32:191
81700rcu_preempt29912-21diskmemload00:30:290
81700rcu_preempt20613-21ntp_states22:12:261
81700rcu_preempt0-21swapper/022:00:530
81700rcu_preempt0-21swapper/000:12:320
81700rcu_preempt0-21swapper/000:04:400
81690rcu_preempt19669-21munin-run22:12:041
81690rcu_preempt0-21swapper/122:41:261
81680rcu_preempt31139-21kernelversion00:32:241
81680rcu_preempt0-21swapper/023:30:000
81680rcu_preempt0-21swapper/022:23:290
81680rcu_preempt0-21swapper/022:19:250
81670rcu_preempt19-21ksoftirqd/121:47:051
81670rcu_preempt19-21ksoftirqd/100:03:271
81670rcu_preempt0-21swapper/123:17:241
81670rcu_preempt0-21swapper/021:50:570
81670rcu_preempt0-21swapper/000:18:080
81660rcu_preempt0-21swapper/120:57:201
81660rcu_preempt0-21swapper/023:51:260
81660rcu_preempt0-21swapper/022:46:150
81650rcu_preempt19-21ksoftirqd/123:46:581
81650rcu_preempt13730-21mailstats20:47:281
81640rcu_preempt19-21ksoftirqd/121:55:371
81640rcu_preempt0-21swapper/023:57:270
81640rcu_preempt0-21swapper/023:40:180
81640rcu_preempt0-21swapper/020:02:160
81630rcu_preempt30861-21ssh00:32:200
81630rcu_preempt14705-21df_inode22:02:200
81630rcu_preempt0-21swapper/021:40:400
81630rcu_preempt0-21swapper/000:22:310
81620rcu_preempt23185-21tr19:17:251
81620rcu_preempt10366-21ssh21:52:470
81620rcu_preempt0-21swapper/022:37:340
81620rcu_preempt0-21swapper/021:43:290
81620rcu_preempt0-21swapper/019:22:270
81610rcu_preempt28660-21munin-run19:42:040
81610rcu_preempt0-21swapper/023:20:300
81610rcu_preempt0-21swapper/023:03:110
81610rcu_preempt0-21swapper/022:51:360
81610rcu_preempt0-21swapper/019:17:180
81610rcu_preempt0-21swapper/000:09:520
81600rcu_preempt20227-21fw_conntrack19:07:190
81600rcu_preempt0-21swapper/022:08:410
81600rcu_preempt0-21swapper/020:12:280
81590rcu_preempt28477-21ssh21:27:270
81590rcu_preempt0-21swapper/023:35:590
81590rcu_preempt0-21swapper/022:52:360
81590rcu_preempt0-21swapper/022:32:170
81590rcu_preempt0-21swapper/022:28:280
81590rcu_preempt0-21swapper/020:37:160
81580rcu_preempt31782-21if_wlan019:52:230
81580rcu_preempt11385-21ssh23:55:080
81580rcu_preempt0-21swapper/019:42:240
146650580irq/31-eth0-tx-0-21swapper/122:53:491
146450580irq/29-eth0-rx-0-21swapper/100:21:331
89950570irq/17-ehci_hcd0-21swapper/123:37:221
81570rcu_preempt3764-21apt-get22:42:151
81570rcu_preempt20679-21ssh22:12:270
81570rcu_preempt19-21ksoftirqd/100:42:031
81570rcu_preempt0-21swapper/023:24:100
81570rcu_preempt0-21swapper/023:12:280
81570rcu_preempt0-21swapper/023:10:560
81570rcu_preempt0-21swapper/022:59:480
81570rcu_preempt0-21swapper/021:02:260
81570rcu_preempt0-21swapper/000:38:190
89950560irq/17-ehci_hcd0-21swapper/120:32:161
81560rcu_preempt19074-21diskmemload21:22:210
81560rcu_preempt19-21ksoftirqd/123:01:131
81560rcu_preempt0-21swapper/021:32:380
81550rcu_preempt9208-21df_abs20:32:170
81550rcu_preempt4982-21python23:42:300
81550rcu_preempt20834-21ssh21:13:410
81550rcu_preempt18061-21tr21:07:180
21092995548cyclictest945-21usb-storage21:09:341
21092995548cyclictest945-21usb-storage19:51:011
81540rcu_preempt32199-21/usr/sbin/munin19:52:291
81540rcu_preempt25237-21grep19:27:180
81540rcu_preempt19-21ksoftirqd/121:57:101
81540rcu_preempt0-21swapper/020:27:220
81540rcu_preempt0-21swapper/020:17:310
21092995449cyclictest945-21usb-storage21:25:471
21092995449cyclictest945-21usb-storage20:43:211
21092995449cyclictest945-21usb-storage20:29:421
21092995447cyclictest945-21usb-storage20:14:061
21092995446cyclictest945-21usb-storage20:23:561
21092995446cyclictest945-21usb-storage20:06:441
81530rcu_preempt12693-21sshd20:45:100
81530rcu_preempt0-21swapper/020:55:400
81530rcu_preempt0-21swapper/019:14:240
21092995349cyclictest945-21usb-storage22:30:321
21092995349cyclictest945-21usb-storage20:38:041
21092995349cyclictest945-21usb-storage19:44:381
21092995348cyclictest945-21usb-storage21:03:321
21092995348cyclictest945-21usb-storage20:54:191
21092995348cyclictest945-21usb-storage19:36:171
21092995348cyclictest945-21usb-storage19:30:121
21092995348cyclictest945-21usb-storage19:24:551
21092995348cyclictest945-21usb-storage19:15:401
81520rcu_preempt19-21ksoftirqd/123:55:011
81520rcu_preempt19-21ksoftirqd/122:47:221
81520rcu_preempt0-21swapper/020:57:440
81520rcu_preempt0-21swapper/020:48:040
81520rcu_preempt0-21swapper/019:34:380
21092995249cyclictest945-21usb-storage20:09:151
21092995248cyclictest945-21usb-storage23:25:111
21092995247cyclictest945-21usb-storage20:19:381
21092995247cyclictest945-21usb-storage19:58:361
21092995247cyclictest945-21usb-storage19:37:451
81510rcu_preempt19-21ksoftirqd/123:14:081
81510rcu_preempt19-21ksoftirqd/121:27:181
21092995148cyclictest945-21usb-storage23:57:511
21092995148cyclictest945-21usb-storage22:20:591
21092995148cyclictest945-21usb-storage21:39:431
21092995148cyclictest945-21usb-storage00:07:351
21092995147cyclictest945-21usb-storage23:08:321
21092995047cyclictest945-21usb-storage23:02:091
21091995047cyclictest945-21usb-storage20:02:030
81490rcu_preempt0-21swapper/020:12:030
81400rcu_preempt30574-21cut19:47:240
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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