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2026-07-03 - 07:13
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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 Fri Jul 03, 2026 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
811030rcu_preempt19-21ksoftirqd/123:25:361
81750rcu_preempt9219-21ssh00:00:520
81710rcu_preempt27684-21apt-get22:20:370
81710rcu_preempt0-21swapper/023:35:460
81710rcu_preempt0-21swapper/021:55:460
81710rcu_preempt0-21swapper/021:40:420
81700rcu_preempt0-21swapper/119:40:471
81700rcu_preempt0-21swapper/023:55:520
81690rcu_preempt14248-21munin-run19:50:240
81690rcu_preempt0-21swapper/023:25:040
81690rcu_preempt0-21swapper/021:45:510
81680rcu_preempt30785-21sh00:41:440
81680rcu_preempt27850-1kworker/0:1H23:53:340
81670rcu_preempt2192-21snmpd19:12:591
81670rcu_preempt0-21swapper/100:27:551
81670rcu_preempt0-21swapper/023:18:330
81670rcu_preempt0-21swapper/022:58:570
81660rcu_preempt0-21swapper/020:28:150
81650rcu_preempt0-21swapper/121:51:441
81650rcu_preempt0-21swapper/121:33:091
81650rcu_preempt0-21swapper/100:14:361
81640rcu_preempt0-21swapper/100:36:131
81640rcu_preempt0-21swapper/023:45:290
81640rcu_preempt0-21swapper/022:34:020
81640rcu_preempt0-21swapper/022:15:370
81640rcu_preempt0-21swapper/021:10:370
81630rcu_preempt24573-21diskstats00:30:450
81630rcu_preempt23753-21ssh22:09:341
81630rcu_preempt0-21swapper/122:03:361
81620rcu_preempt5985-21if_wlan019:15:441
81620rcu_preempt5768-21ssh22:47:401
81620rcu_preempt23919-21ssh23:30:371
81620rcu_preempt0-21swapper/100:35:201
81620rcu_preempt0-21swapper/019:40:480
81620rcu_preempt0-21swapper/019:10:430
81610rcu_preempt3880-21ssh22:42:021
81610rcu_preempt0-21swapper/123:40:361
81610rcu_preempt0-21swapper/120:25:401
81610rcu_preempt0-21swapper/100:40:531
81610rcu_preempt0-21swapper/023:10:540
81610rcu_preempt0-21swapper/019:25:360
81600rcu_preempt9286-21ssh22:56:121
81600rcu_preempt8292-21ssh21:25:521
81600rcu_preempt32490-21diskstats23:45:401
81600rcu_preempt21122-21tr22:00:510
81600rcu_preempt20674-21ssh00:22:541
81600rcu_preempt18660-21ssh00:20:150
81600rcu_preempt17091-21ssh23:17:241
81600rcu_preempt0-21swapper/123:52:131
81600rcu_preempt0-21swapper/123:35:271
81600rcu_preempt0-21swapper/122:35:381
81600rcu_preempt0-21swapper/122:27:331
81600rcu_preempt0-21swapper/121:55:511
81600rcu_preempt0-21swapper/121:40:401
81600rcu_preempt0-21swapper/121:39:091
81600rcu_preempt0-21swapper/120:45:421
81600rcu_preempt0-21swapper/120:10:481
81600rcu_preempt0-21swapper/100:18:231
81600rcu_preempt0-21swapper/021:20:400
81600rcu_preempt0-21swapper/000:14:410
81590rcu_preempt27134-21ssh22:17:041
81590rcu_preempt20378-21ssh00:22:010
81590rcu_preempt15227-21ssh23:15:171
81590rcu_preempt12379-21ssh00:06:461
81590rcu_preempt0-21swapper/123:20:421
81590rcu_preempt0-21swapper/122:22:091
81590rcu_preempt0-21swapper/121:15:501
81590rcu_preempt0-21swapper/119:30:351
81590rcu_preempt0-21swapper/023:00:430
81590rcu_preempt0-21swapper/022:45:390
81590rcu_preempt0-21swapper/022:35:440
81590rcu_preempt0-21swapper/022:25:370
81580rcu_preempt6379-21ps23:55:501
81580rcu_preempt28655-21if_can120:45:410
81580rcu_preempt25272-21ssh22:11:581
81580rcu_preempt16240-21ssh21:48:361
81580rcu_preempt12469-21strings23:05:520
81580rcu_preempt11120-21latency19:35:441
81580rcu_preempt0-21swapper/122:52:081
81580rcu_preempt0-21swapper/121:21:421
81580rcu_preempt0-21swapper/121:05:411
81580rcu_preempt0-21swapper/119:50:511
81580rcu_preempt0-21swapper/119:48:521
81580rcu_preempt0-21swapper/023:26:020
81570rcu_preempt0-21swapper/123:02:101
81570rcu_preempt0-21swapper/121:13:011
81570rcu_preempt0-21swapper/119:20:351
81570rcu_preempt0-21swapper/023:31:030
81570rcu_preempt0-21swapper/022:52:520
81570rcu_preempt0-21swapper/021:20:210
81570rcu_preempt0-21swapper/020:35:500
81570rcu_preempt0-21swapper/019:35:420
81560rcu_preempt12389-21memory23:05:511
81560rcu_preempt0-21swapper/120:40:131
81560rcu_preempt0-21swapper/120:07:241
81560rcu_preempt0-21swapper/021:30:460
81560rcu_preempt0-21swapper/000:40:020
81560rcu_preempt0-21swapper/000:05:420
81550rcu_preempt6626-21sshd19:16:060
81550rcu_preempt363-21ssh22:33:361
81550rcu_preempt31748-21ssh23:44:280
81550rcu_preempt31087-21diskstats20:55:401
81550rcu_preempt22027-21fw_forwarded_lo00:25:430
81550rcu_preempt18110-21sshd21:54:100
81550rcu_preempt0-21swapper/120:54:181
81550rcu_preempt0-21swapper/120:44:081
81550rcu_preempt0-21swapper/120:21:401
81550rcu_preempt0-21swapper/100:01:041
81550rcu_preempt0-21swapper/020:21:150
89550540irq/17-ehci_hcd16892-21/usr/sbin/munin20:00:480
81540rcu_preempt2615-21/usr/sbin/munin22:40:430
81540rcu_preempt25636-21ssh22:14:580
81540rcu_preempt0-21swapper/120:17:491
81540rcu_preempt0-21swapper/120:00:431
81540rcu_preempt0-21swapper/021:26:130
146250540irq/28-eth0-rx-41ktimersoftd/021:35:390
81530rcu_preempt0-21swapper/121:00:491
81530rcu_preempt0-21swapper/020:50:540
81530rcu_preempt0-21swapper/020:17:180
81530rcu_preempt0-21swapper/020:14:540
81530rcu_preempt0-21swapper/019:55:290
81520rcu_preempt1704-21ntp_states21:05:480
81520rcu_preempt0-21swapper/119:57:581
81520rcu_preempt0-21swapper/020:55:560
81520rcu_preempt0-21swapper/020:44:120
81520rcu_preempt0-21swapper/020:06:370
5405995249cyclictest945-21usb-storage20:30:421
5405995148cyclictest945-21usb-storage19:25:461
81500rcu_preempt0-21swapper/019:30:480
81480rcu_preempt22768-21memory22:05:460
81480rcu_preempt0-21swapper/021:02:250
146650370irq/31-eth0-tx-8535-1kworker/0:2H19:23:090
89950360irq/17-ehci_hcd0-21swapper/020:31:230
89950360irq/17-ehci_hcd0-21swapper/019:51:310
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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