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2025-09-18 - 01:22
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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 Wed Sep 17, 2025 12:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
141050750irq/28-eth0-rx-10555-21kworker/1:007:10:251
81740rcu_preempt5466-21ssh10:34:031
81720rcu_preempt3879-21ssh11:32:100
81720rcu_preempt21322-21if_eth108:53:581
81720rcu_preempt0-21swapper/010:48:530
81710rcu_preempt30080-21sh11:19:271
81710rcu_preempt0-21swapper/110:39:061
81710rcu_preempt0-21swapper/108:13:381
81710rcu_preempt0-21swapper/107:24:041
81710rcu_preempt0-21swapper/107:19:051
81710rcu_preempt0-21swapper/011:16:000
81710rcu_preempt0-21swapper/009:17:110
81700rcu_preempt31244-21memory12:24:000
81700rcu_preempt27582-21sh12:17:201
81700rcu_preempt20225-1kworker/0:2H07:33:190
81700rcu_preempt0-21swapper/112:02:201
81700rcu_preempt0-21swapper/111:38:141
81700rcu_preempt0-21swapper/110:53:561
81700rcu_preempt0-21swapper/108:59:041
81700rcu_preempt0-21swapper/009:37:140
81690rcu_preempt28399-21sh10:17:291
81690rcu_preempt20445-21sh10:02:411
81690rcu_preempt0-21swapper/112:24:051
81690rcu_preempt0-21swapper/111:11:031
81690rcu_preempt0-21swapper/110:04:381
81690rcu_preempt0-21swapper/109:35:371
81690rcu_preempt0-21swapper/010:13:180
81680rcu_preempt24530-21munin-run09:08:390
81680rcu_preempt21870-21ssh12:04:400
81680rcu_preempt0-21swapper/111:26:271
81670rcu_preempt7353-21df11:38:550
81670rcu_preempt6037-21sh10:35:100
81670rcu_preempt15222-21apt-get10:53:500
81670rcu_preempt0-21swapper/111:31:211
81670rcu_preempt0-21swapper/111:01:071
81660rcu_preempt26767-21ssh09:14:021
81660rcu_preempt0-21swapper/112:04:501
81660rcu_preempt0-21swapper/012:02:370
81660rcu_preempt0-21swapper/009:55:240
81650rcu_preempt6736-21tail12:39:060
81650rcu_preempt0-21swapper/111:55:031
81650rcu_preempt0-21swapper/109:51:021
81650rcu_preempt0-21swapper/108:30:041
81640rcu_preempt8098-21sendmail08:03:370
81640rcu_preempt0-21swapper/112:23:301
81640rcu_preempt0-21swapper/107:42:011
81640rcu_preempt0-21swapper/107:29:041
81640rcu_preempt0-21swapper/009:44:040
81640rcu_preempt0-21swapper/008:53:580
81630rcu_preempt29108-21df_inode09:18:530
81630rcu_preempt28337-21df_abs12:18:530
81630rcu_preempt0-21swapper/108:06:041
81630rcu_preempt0-21swapper/011:34:060
81630rcu_preempt0-21swapper/011:01:360
81630rcu_preempt0-21swapper/010:47:250
81620rcu_preempt0-21swapper/111:15:571
81620rcu_preempt0-21swapper/110:46:541
81620rcu_preempt0-21swapper/109:40:281
81620rcu_preempt0-21swapper/109:18:511
81610rcu_preempt19-21ksoftirqd/112:36:291
81610rcu_preempt0-21swapper/107:59:031
81610rcu_preempt0-21swapper/012:28:530
81610rcu_preempt0-21swapper/011:57:380
81610rcu_preempt0-21swapper/011:11:500
81610rcu_preempt0-21swapper/010:28:580
81610rcu_preempt0-21swapper/009:40:150
81610rcu_preempt0-21swapper/007:14:020
141250610irq/30-eth0-tx-0-21swapper/111:44:161
81600rcu_preempt31689-21ssh09:23:421
81600rcu_preempt2927-21ssh09:29:021
81600rcu_preempt12767-21/usr/sbin/munin11:48:581
81600rcu_preempt0-21swapper/112:31:161
81600rcu_preempt0-21swapper/111:07:531
81600rcu_preempt0-21swapper/110:53:191
81600rcu_preempt0-21swapper/107:53:591
81600rcu_preempt0-21swapper/011:03:590
81600rcu_preempt0-21swapper/008:59:010
81590rcu_preempt839-21ssh10:25:231
81590rcu_preempt4319-21sshd07:47:041
81590rcu_preempt25523-21ssh10:11:381
81590rcu_preempt21501-21kworker/0:207:09:010
81590rcu_preempt20225-1kworker/0:2H10:23:340
81590rcu_preempt19616-21ssh10:00:020
81590rcu_preempt0-21swapper/111:38:461
81590rcu_preempt0-21swapper/110:32:501
81590rcu_preempt0-21swapper/109:43:451
81590rcu_preempt0-21swapper/107:48:571
27891995956cyclictest41ktimersoftd/007:53:570
81580rcu_preempt9406-21ssh10:42:390
81580rcu_preempt30243-21ssh10:19:371
81580rcu_preempt0-21swapper/112:39:021
81580rcu_preempt0-21swapper/109:54:551
81580rcu_preempt0-21swapper/107:38:231
81580rcu_preempt0-21swapper/010:18:290
81570rcu_preempt25786-21diskmemload12:10:111
81570rcu_preempt20635-21sed08:49:041
81570rcu_preempt1829-21ssh10:28:290
81570rcu_preempt1060-21ssh09:25:580
81570rcu_preempt0-21swapper/108:36:101
81570rcu_preempt0-21swapper/108:36:101
81570rcu_preempt0-21swapper/107:14:001
81570rcu_preempt0-21swapper/009:30:570
89950560irq/17-ehci_hcd29997-21ssh11:19:120
81560rcu_preempt3298-21ssh12:33:410
81560rcu_preempt27185-21ssh12:15:490
81560rcu_preempt0-21swapper/109:09:021
81560rcu_preempt0-21swapper/011:49:530
81560rcu_preempt0-21swapper/011:26:550
81560rcu_preempt0-21swapper/010:08:290
81560rcu_preempt0-21swapper/008:34:000
81560rcu_preempt0-21swapper/008:34:000
81560rcu_preempt0-21swapper/007:43:540
81560rcu_preempt0-21swapper/007:38:550
81550rcu_preempt0-21swapper/109:07:071
81550rcu_preempt0-21swapper/108:23:581
81550rcu_preempt0-21swapper/009:52:230
81550rcu_preempt0-21swapper/009:09:050
81550rcu_preempt0-21swapper/008:23:530
81540rcu_preempt24851-21ssh12:11:210
81540rcu_preempt0-21swapper/011:45:330
81530rcu_preempt18112-21cat08:39:061
81530rcu_preempt0-21swapper/108:19:051
81530rcu_preempt0-21swapper/008:09:230
81520rcu_preempt0-21swapper/008:07:470
81520rcu_preempt0-21swapper/007:23:040
81510rcu_preempt14785-21diskstats08:28:550
81510rcu_preempt10897-21df08:13:530
27892995147cyclictest945-21usb-storage08:43:541
27892994944cyclictest945-21usb-storage08:11:571
81480rcu_preempt0-21swapper/008:20:240
27891994642cyclictest945-21usb-storage08:48:570
81440rcu_preempt31444-21mailstats07:24:020
81420rcu_preempt17286-21df_inode08:38:550
81420rcu_preempt0-21swapper/008:47:310
141350410irq/31-eth0-tx-20965-21apache207:37:530
27891993835cyclictest945-21usb-storage07:49:350
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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