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2026-08-10 - 00:58
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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 792 highest latencies:
System rackcslot3.osadl.org (updated Sun Aug 09, 2026 12:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81890rcu_preempt26859-21ssh11:35:300
81720rcu_preempt18738-1kworker/0:0H10:55:340
81710rcu_preempt8156-21ssh12:01:030
81710rcu_preempt15953-21sh10:17:071
81710rcu_preempt15439-21diskmemload10:32:070
81710rcu_preempt10716-21sh12:05:361
81710rcu_preempt0-21swapper/010:38:580
81700rcu_preempt0-21swapper/112:35:061
81700rcu_preempt0-21swapper/011:03:500
81700rcu_preempt0-21swapper/009:20:310
81700rcu_preempt0-21swapper/009:03:590
81690rcu_preempt15439-21diskmemload12:37:410
81690rcu_preempt0-21swapper/112:44:191
81690rcu_preempt0-21swapper/111:05:441
81690rcu_preempt0-21swapper/108:28:461
81690rcu_preempt0-21swapper/107:48:571
89950680irq/17-ehci_hcd945-21usb-storage07:13:371
81680rcu_preempt13110-21sh12:09:140
81680rcu_preempt0-21swapper/109:24:031
81680rcu_preempt0-21swapper/012:31:200
81670rcu_preempt20913-21ssh10:25:121
81670rcu_preempt0-21swapper/112:11:181
81670rcu_preempt0-21swapper/110:58:191
81670rcu_preempt0-21swapper/109:03:231
81670rcu_preempt0-21swapper/009:35:360
81660rcu_preempt5588-21/usr/sbin/munin09:58:471
81660rcu_preempt4605-21ps11:53:560
81660rcu_preempt27725-21ssh09:38:581
81660rcu_preempt2192-21snmpd11:44:001
81660rcu_preempt0-21swapper/111:55:411
81660rcu_preempt0-21swapper/111:09:581
81660rcu_preempt0-21swapper/109:53:531
81660rcu_preempt0-21swapper/108:45:401
81660rcu_preempt0-21swapper/012:23:250
81660rcu_preempt0-21swapper/009:28:460
81650rcu_preempt11588-21if_eth010:08:541
81650rcu_preempt0-21swapper/109:34:371
81650rcu_preempt0-21swapper/107:28:521
81640rcu_preempt32645-21ssh12:46:050
81640rcu_preempt15439-21diskmemload09:28:551
81630rcu_preempt2937-21ssh11:51:291
81630rcu_preempt0-21swapper/111:38:481
81630rcu_preempt0-21swapper/110:29:301
81630rcu_preempt0-21swapper/007:46:090
146650630irq/31-eth0-tx-41ktimersoftd/010:52:050
81620rcu_preempt31823-21ssh10:45:091
81620rcu_preempt19-21ksoftirqd/110:23:071
81620rcu_preempt17376-21users07:13:580
81620rcu_preempt1637-21/usr/sbin/munin08:23:511
81620rcu_preempt0-21swapper/111:21:411
81620rcu_preempt0-21swapper/107:43:471
81620rcu_preempt0-21swapper/008:39:020
81620rcu_preempt0-21swapper/008:34:010
81610rcu_preempt27441-21interrupts09:38:540
81610rcu_preempt26905-21ssh11:35:401
81610rcu_preempt2405-21rm11:49:490
81610rcu_preempt1795-21ssh09:50:491
81610rcu_preempt13302-21entropy09:08:501
81610rcu_preempt0-21swapper/011:42:190
81610rcu_preempt0-21swapper/010:07:270
81600rcu_preempt31149-21ssh09:44:541
81600rcu_preempt28480-21if_can112:38:521
81600rcu_preempt23934-21ssh12:29:041
81600rcu_preempt0-21swapper/112:18:511
81600rcu_preempt0-21swapper/112:14:011
81600rcu_preempt0-21swapper/110:42:251
81600rcu_preempt0-21swapper/110:03:581
81600rcu_preempt0-21swapper/109:21:171
81600rcu_preempt0-21swapper/107:35:051
81600rcu_preempt0-21swapper/012:04:060
81600rcu_preempt0-21swapper/010:10:010
81600rcu_preempt0-21swapper/009:45:190
81590rcu_preempt32556-21ssh11:46:340
81590rcu_preempt2986-21df_abs09:53:490
81590rcu_preempt28977-21latency_hist08:03:330
81590rcu_preempt27077-21ssh10:37:330
81590rcu_preempt21741-21ssh11:27:101
81590rcu_preempt15110-21ssh10:14:280
81590rcu_preempt0-21swapper/112:01:511
81590rcu_preempt0-21swapper/111:29:001
81590rcu_preempt0-21swapper/110:50:111
81590rcu_preempt0-21swapper/108:48:551
81590rcu_preempt0-21swapper/012:23:520
81590rcu_preempt0-21swapper/011:13:480
81590rcu_preempt0-21swapper/010:45:270
81590rcu_preempt0-21swapper/008:43:590
81590rcu_preempt0-21swapper/008:18:590
89950580irq/17-ehci_hcd945-21usb-storage11:15:031
81580rcu_preempt21227-21ssh12:24:151
81580rcu_preempt0-21swapper/110:34:121
81580rcu_preempt0-21swapper/108:58:221
81580rcu_preempt0-21swapper/108:38:481
81580rcu_preempt0-21swapper/108:14:011
81580rcu_preempt0-21swapper/011:03:180
81580rcu_preempt0-21swapper/010:20:050
81570rcu_preempt23997-21ssh11:30:280
81570rcu_preempt15206-21latency12:13:540
81570rcu_preempt0-21swapper/108:03:151
81570rcu_preempt0-21swapper/009:26:010
81560rcu_preempt8201-21ssh10:03:260
81560rcu_preempt21437-21ssh10:27:070
81560rcu_preempt19472-21ssh11:23:310
81560rcu_preempt15439-21diskmemload11:12:280
81560rcu_preempt0-21swapper/012:42:550
81560rcu_preempt0-21swapper/009:48:520
81550rcu_preempt14576-21fw_conntrack09:13:501
81550rcu_preempt0-21swapper/108:38:241
81550rcu_preempt0-21swapper/108:03:351
81550rcu_preempt0-21swapper/107:24:021
81550rcu_preempt0-21swapper/009:13:560
81550rcu_preempt0-21swapper/008:08:430
81540rcu_preempt23545-21sensors07:39:011
81540rcu_preempt2192-21snmpd08:33:160
81540rcu_preempt21692-21modprobe07:33:490
81540rcu_preempt19939-21sshd07:25:160
81540rcu_preempt17917-21modprobe07:18:521
81540rcu_preempt0-21swapper/108:11:301
81540rcu_preempt0-21swapper/011:25:260
81540rcu_preempt0-21swapper/009:08:390
81530rcu_preempt0-21swapper/008:59:010
81530rcu_preempt0-21swapper/008:48:390
81530rcu_preempt0-21swapper/007:48:590
81520rcu_preempt0-21swapper/107:53:481
81520rcu_preempt0-21swapper/008:24:530
81520rcu_preempt0-21swapper/007:33:160
17453995249cyclictest945-21usb-storage10:58:501
89950510irq/17-ehci_hcd945-21usb-storage09:03:581
81510rcu_preempt0-21swapper/008:14:490
81500rcu_preempt17843-21fw_conntrack07:18:500
81490rcu_preempt28815-21users07:59:010
89950480irq/17-ehci_hcd945-21usb-storage08:18:531
81480rcu_preempt10340-21users08:54:010
81420rcu_preempt23713-21users07:39:020
146650410irq/31-eth0-tx-26741-21kworker/0:007:53:560
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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