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2025-10-30 - 18:51
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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 Oct 30, 2025 12:43:27)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
89950930irq/17-ehci_hcd4982-21/usr/sbin/munin07:10:531
89950880irq/17-ehci_hcd29215-21apache211:21:110
89950790irq/17-ehci_hcd945-21usb-storage09:47:090
141250760irq/30-eth0-tx-0-21swapper/007:11:290
81750rcu_preempt0-21swapper/111:19:181
81750rcu_preempt0-21swapper/010:44:070
89150740irq/17-ehci_hcd945-21usb-storage11:01:051
81710rcu_preempt31975-21sh11:59:501
81710rcu_preempt2930-21df12:05:440
81710rcu_preempt14253-21apt-get10:30:420
81710rcu_preempt12843-21ssh12:23:430
81710rcu_preempt0-21swapper/011:30:540
81710rcu_preempt0-21swapper/011:00:430
81700rcu_preempt9005-21ssh12:15:501
81700rcu_preempt5458-21ssh10:15:110
81700rcu_preempt0-21swapper/012:40:560
81700rcu_preempt0-21swapper/011:59:540
81700rcu_preempt0-21swapper/008:50:510
81700rcu_preempt0-21swapper/008:05:470
81700rcu_preempt0-21swapper/007:40:560
81690rcu_preempt0-21swapper/110:35:451
81690rcu_preempt0-21swapper/110:05:081
81680rcu_preempt10476-21sh10:23:030
81680rcu_preempt0-21swapper/112:37:051
81680rcu_preempt0-21swapper/110:48:121
81680rcu_preempt0-21swapper/110:24:141
81680rcu_preempt0-21swapper/010:55:280
81680rcu_preempt0-21swapper/010:19:230
81670rcu_preempt20543-1kworker/0:0H07:48:310
81670rcu_preempt13518-21ssh10:29:001
81670rcu_preempt0-21swapper/112:30:111
81670rcu_preempt0-21swapper/109:40:291
81670rcu_preempt0-21swapper/012:27:360
81670rcu_preempt0-21swapper/010:04:150
81660rcu_preempt23702-21/usr/sbin/munin11:45:301
81660rcu_preempt23702-21/usr/sbin/munin11:45:301
81650rcu_preempt28841-21rm11:53:490
81650rcu_preempt2411-21/usr/sbin/munin09:10:441
81650rcu_preempt0-21swapper/112:30:511
81650rcu_preempt0-21swapper/112:24:151
81650rcu_preempt0-21swapper/112:14:251
81650rcu_preempt0-21swapper/111:30:501
81650rcu_preempt0-21swapper/110:40:481
81650rcu_preempt0-21swapper/107:36:411
81650rcu_preempt0-21swapper/012:37:110
89550640irq/17-ehci_hcd7593-21ssh11:15:480
81630rcu_preempt4754-21ssh12:08:241
81630rcu_preempt27734-21ssh10:53:511
81630rcu_preempt27174-21/usr/sbin/munin08:40:471
81630rcu_preempt0-21swapper/109:46:041
81630rcu_preempt0-21swapper/011:40:470
81630rcu_preempt0-21swapper/011:40:470
81630rcu_preempt0-21swapper/011:10:480
81630rcu_preempt0-21swapper/011:05:450
81630rcu_preempt0-21swapper/010:45:460
81630rcu_preempt0-21swapper/009:37:050
81630rcu_preempt0-21swapper/009:00:540
81630rcu_preempt0-21swapper/008:19:340
81620rcu_preempt9473-21munin-run09:25:291
81620rcu_preempt2347-21ssh10:09:191
81620rcu_preempt0-21swapper/109:25:491
81620rcu_preempt0-21swapper/107:40:561
81620rcu_preempt0-21swapper/010:36:580
81620rcu_preempt0-21swapper/007:20:460
81610rcu_preempt5027-21ssh09:16:151
81610rcu_preempt30633-21ssh10:58:501
81610rcu_preempt0-21swapper/012:19:540
81610rcu_preempt0-21swapper/011:37:410
81610rcu_preempt0-21swapper/009:05:520
81600rcu_preempt24675-21ssh11:45:520
81600rcu_preempt15859-21ssh10:32:211
81600rcu_preempt0-21swapper/110:15:481
81600rcu_preempt0-21swapper/109:58:331
81600rcu_preempt0-21swapper/109:52:171
81600rcu_preempt0-21swapper/109:45:271
81600rcu_preempt0-21swapper/108:25:491
81600rcu_preempt0-21swapper/010:55:540
81600rcu_preempt0-21swapper/009:25:090
81590rcu_preempt6494-21ntpq07:15:521
81590rcu_preempt23825-21ssh12:45:071
81590rcu_preempt17718-21ssh12:32:080
81590rcu_preempt1450-21ssh12:01:591
81590rcu_preempt14023-21ssh11:26:151
81590rcu_preempt0-21swapper/111:53:591
81590rcu_preempt0-21swapper/111:46:411
81590rcu_preempt0-21swapper/111:06:281
81590rcu_preempt0-21swapper/110:14:351
81590rcu_preempt0-21swapper/107:55:541
81590rcu_preempt0-21swapper/107:55:541
81590rcu_preempt0-21swapper/011:25:580
81590rcu_preempt0-21swapper/009:50:550
81590rcu_preempt0-21swapper/009:10:550
81590rcu_preempt0-21swapper/008:40:460
81590rcu_preempt0-21swapper/008:25:500
81580rcu_preempt7036-21/usr/sbin/munin07:20:531
81580rcu_preempt0-21swapper/111:37:371
81580rcu_preempt0-21swapper/111:14:161
81580rcu_preempt0-21swapper/108:55:491
81580rcu_preempt0-21swapper/108:45:301
81580rcu_preempt0-21swapper/108:19:021
81580rcu_preempt0-21swapper/108:10:441
81580rcu_preempt0-21swapper/107:27:051
81580rcu_preempt0-21swapper/009:32:520
81570rcu_preempt29997-21df_inode08:50:451
81570rcu_preempt2255-21sshd09:07:051
81570rcu_preempt19887-21ssh09:42:340
81570rcu_preempt12837-21ssh10:26:460
81570rcu_preempt11024-21ssh09:26:270
81570rcu_preempt0-21swapper/111:25:291
81570rcu_preempt0-21swapper/109:32:451
81570rcu_preempt0-21swapper/108:40:261
81570rcu_preempt0-21swapper/107:45:461
81570rcu_preempt0-21swapper/107:30:541
81570rcu_preempt0-21swapper/012:11:360
81570rcu_preempt0-21swapper/012:05:050
81570rcu_preempt0-21swapper/009:56:260
81570rcu_preempt0-21swapper/008:56:150
81570rcu_preempt0-21swapper/008:45:440
81560rcu_preempt3755-21ssh09:15:430
81560rcu_preempt0-21swapper/007:15:530
81550rcu_preempt0-21swapper/109:01:451
81550rcu_preempt0-21swapper/107:52:381
81540rcu_preempt32547-21cpu10:05:430
81530rcu_preempt0-21swapper/008:35:110
81530rcu_preempt0-21swapper/008:00:460
81520rcu_preempt0-21swapper/007:59:090
81520rcu_preempt0-21swapper/007:59:090
5654995248cyclictest945-21usb-storage08:31:061
5654995147cyclictest945-21usb-storage08:20:491
81490rcu_preempt0-21swapper/008:40:290
81490rcu_preempt0-21swapper/008:13:570
5654994946cyclictest945-21usb-storage08:05:361
5654994946cyclictest945-21usb-storage08:05:091
81480rcu_preempt0-21swapper/007:37:200
81430rcu_preempt9807-21diskstats07:30:460
81420rcu_preempt15513-21python07:50:540
89950410irq/17-ehci_hcd945-21usb-storage08:21:280
565399411cyclictest9033-21ntp_states07:26:010
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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