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2025-12-04 - 07:23
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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 Thu Dec 04, 2025 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
151950980irq/31-eth0-tx-0-21swapper/121:11:111
81780rcu_preempt25061-21ssh23:49:571
81780rcu_preempt12676-21diskstats22:25:001
81760rcu_preempt19303-21head21:35:101
81740rcu_preempt11326-21k10sensors21:20:111
81740rcu_preempt0-21swapper/121:17:071
81730rcu_preempt28323-1kworker/1:0H00:28:551
81730rcu_preempt19-21ksoftirqd/121:59:341
81710rcu_preempt31565-21ssh21:59:570
81710rcu_preempt0-21swapper/119:09:131
81700rcu_preempt0-21swapper/123:48:171
81700rcu_preempt0-21swapper/019:24:490
81690rcu_preempt19-21ksoftirqd/100:16:181
81690rcu_preempt0-21swapper/120:20:061
81680rcu_preempt7554-21ssh21:14:590
81680rcu_preempt17123-21if_err_eth119:50:030
81680rcu_preempt0-21swapper/023:49:060
81680rcu_preempt0-21swapper/023:11:080
81670rcu_preempt25555-21latency_hist20:24:451
81670rcu_preempt0-21swapper/000:32:420
81660rcu_preempt17761-21apt-get22:34:570
81640rcu_preempt0-21swapper/000:35:520
81630rcu_preempt0-21swapper/021:33:200
81620rcu_preempt0-21swapper/023:20:100
81610rcu_preempt5647-21df_inode00:15:020
81610rcu_preempt14671-21if_wlan019:40:030
81610rcu_preempt0-21swapper/122:07:121
81610rcu_preempt0-21swapper/023:15:050
81610rcu_preempt0-21swapper/022:05:050
81600rcu_preempt20856-21munin-run21:39:450
81600rcu_preempt0-21swapper/023:07:200
81600rcu_preempt0-21swapper/022:53:260
81600rcu_preempt0-21swapper/020:50:060
81600rcu_preempt0-21swapper/020:15:020
81600rcu_preempt0-21swapper/020:08:080
81600rcu_preempt0-21swapper/019:20:040
81590rcu_preempt0-21swapper/023:03:010
81590rcu_preempt0-21swapper/022:55:010
81590rcu_preempt0-21swapper/022:43:490
81590rcu_preempt0-21swapper/022:11:320
81590rcu_preempt0-21swapper/021:57:260
81580rcu_preempt19-21ksoftirqd/123:03:251
81580rcu_preempt0-21swapper/019:35:080
151950580irq/31-eth0-tx-41ktimersoftd/022:24:440
81570rcu_preempt5856-21ntp_states19:05:090
81570rcu_preempt22274-21ssh21:40:270
81570rcu_preempt11089-21ssh22:20:451
81570rcu_preempt0-21swapper/123:44:091
81570rcu_preempt0-21swapper/122:56:561
81570rcu_preempt0-21swapper/122:36:191
81570rcu_preempt0-21swapper/122:17:511
81570rcu_preempt0-21swapper/121:32:221
81570rcu_preempt0-21swapper/100:03:541
81570rcu_preempt0-21swapper/023:36:320
151450570irq/28-eth0-rx-41ktimersoftd/000:06:560
81560rcu_preempt9039-21ssh23:19:361
81560rcu_preempt16361-21ssh23:32:281
81560rcu_preempt14995-21ssh00:31:571
81560rcu_preempt14805-21ssh21:27:371
81560rcu_preempt0-21swapper/123:55:301
81560rcu_preempt0-21swapper/123:26:431
81560rcu_preempt0-21swapper/122:48:131
81560rcu_preempt0-21swapper/122:42:101
81560rcu_preempt0-21swapper/122:01:231
81560rcu_preempt0-21swapper/121:47:021
81560rcu_preempt0-21swapper/121:01:551
81560rcu_preempt0-21swapper/120:07:311
81560rcu_preempt0-21swapper/119:44:591
81560rcu_preempt0-21swapper/119:18:261
81560rcu_preempt0-21swapper/100:05:381
81560rcu_preempt0-21swapper/023:31:010
81560rcu_preempt0-21swapper/022:15:060
81560rcu_preempt0-21swapper/021:50:360
81560rcu_preempt0-21swapper/021:47:210
81560rcu_preempt0-21swapper/021:10:000
81560rcu_preempt0-21swapper/020:26:250
81560rcu_preempt0-21swapper/020:01:290
81560rcu_preempt0-21swapper/000:11:440
81560rcu_preempt0-21swapper/000:02:520
90050550irq/17-ehci_hcd946-21usb-storage20:54:131
81550rcu_preempt4523-21ssh00:11:341
81550rcu_preempt27433-21ssh23:54:380
81550rcu_preempt0-21swapper/122:31:531
81550rcu_preempt0-21swapper/122:14:221
81550rcu_preempt0-21swapper/119:25:551
81550rcu_preempt0-21swapper/022:45:010
81550rcu_preempt0-21swapper/021:26:510
81550rcu_preempt0-21swapper/021:00:100
81550rcu_preempt0-21swapper/020:35:520
81550rcu_preempt0-21swapper/020:14:250
81550rcu_preempt0-21swapper/019:31:100
81540rcu_preempt27464-21ssh22:52:141
81540rcu_preempt12577-21df_abs22:24:590
81540rcu_preempt0-21swapper/120:17:221
81540rcu_preempt0-21swapper/119:52:201
81540rcu_preempt0-21swapper/119:35:231
81540rcu_preempt0-21swapper/100:38:441
81540rcu_preempt0-21swapper/100:19:561
81540rcu_preempt0-21swapper/023:59:110
81540rcu_preempt0-21swapper/023:24:520
81540rcu_preempt0-21swapper/022:31:130
81540rcu_preempt0-21swapper/021:20:100
81540rcu_preempt0-21swapper/019:45:060
90050530irq/17-ehci_hcd946-21usb-storage19:09:560
81530rcu_preempt0-21swapper/119:59:061
81530rcu_preempt0-21swapper/000:26:190
81530rcu_preempt0-21swapper/000:20:300
6271995349cyclictest12988-21kworker/1:021:41:521
81520rcu_preempt0-21swapper/120:55:451
81520rcu_preempt0-21swapper/120:42:361
81520rcu_preempt0-21swapper/120:38:221
81520rcu_preempt0-21swapper/020:30:330
81510rcu_preempt4594-21memory23:10:051
81510rcu_preempt25412-21sshd20:20:230
81510rcu_preempt19737-21ssh23:39:500
81510rcu_preempt0-21swapper/120:30:261
81510rcu_preempt0-21swapper/119:33:291
81510rcu_preempt0-21swapper/020:44:490
81510rcu_preempt0-21swapper/020:44:340
6271995148cyclictest946-21usb-storage23:39:051
6271995148cyclictest946-21usb-storage23:07:081
6271995148cyclictest946-21usb-storage20:09:571
6271995148cyclictest30471-21kworker/1:120:46:241
81500rcu_preempt0-21swapper/020:57:230
6271995047cyclictest946-21usb-storage23:20:451
6271995047cyclictest946-21usb-storage21:53:061
6271995047cyclictest181ktimersoftd/121:05:121
6271994745cyclictest946-21usb-storage19:20:271
6271994743cyclictest6218-21kworker/1:119:12:321
6270994644cyclictest946-21usb-storage19:55:100
81450rcu_preempt7798-21expr19:15:000
81450rcu_preempt3839-21irqstats21:05:050
6271994542cyclictest11504-21kworker/1:119:42:241
90050400irq/17-ehci_hcd0-21swapper/119:59:571
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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