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2025-11-24 - 16:13
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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 792 highest latencies:
System rackcslot3.osadl.org (updated Mon Nov 24, 2025 12:43:25)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81710rcu_preempt17328-21ssh11:55:150
81690rcu_preempt22114-1kworker/1:1H12:22:391
81690rcu_preempt0-21swapper/108:40:171
81690rcu_preempt0-21swapper/010:28:230
151450690irq/28-eth0-rx-21793-21/usr/sbin/munin07:05:131
81680rcu_preempt0-21swapper/011:37:050
81680rcu_preempt0-21swapper/011:25:360
81680rcu_preempt0-21swapper/010:53:170
81670rcu_preempt15668-21if_eth108:50:070
81670rcu_preempt14169-21sh10:51:161
81660rcu_preempt2052-21ssh12:25:310
81660rcu_preempt0-21swapper/109:30:161
81660rcu_preempt0-21swapper/011:03:290
81660rcu_preempt0-21swapper/007:15:120
81650rcu_preempt27208-21awk07:29:510
81650rcu_preempt15632-21ssh11:52:240
151450650irq/28-eth0-rx-41ktimersoftd/009:43:220
81640rcu_preempt4333-21ssh10:35:030
81640rcu_preempt0-21swapper/112:25:271
81640rcu_preempt0-21swapper/111:29:561
81640rcu_preempt0-21swapper/111:05:401
81640rcu_preempt0-21swapper/109:20:471
81640rcu_preempt0-21swapper/108:50:081
81630rcu_preempt9409-21ssh11:41:101
81630rcu_preempt1282-21cpu07:55:041
81630rcu_preempt0-21swapper/111:49:221
81630rcu_preempt0-21swapper/111:02:331
81630rcu_preempt0-21swapper/110:45:581
81630rcu_preempt0-21swapper/110:05:161
81630rcu_preempt0-21swapper/109:38:061
81630rcu_preempt0-21swapper/109:11:211
81630rcu_preempt0-21swapper/107:25:121
81630rcu_preempt0-21swapper/010:41:190
81630rcu_preempt0-21swapper/009:36:400
81620rcu_preempt0-21swapper/112:01:251
81620rcu_preempt0-21swapper/111:22:251
81620rcu_preempt0-21swapper/110:35:071
81620rcu_preempt0-21swapper/012:38:040
81620rcu_preempt0-21swapper/012:20:150
81620rcu_preempt0-21swapper/009:45:500
81620rcu_preempt0-21swapper/009:23:390
81620rcu_preempt0-21swapper/008:41:480
81610rcu_preempt19-21ksoftirqd/109:25:201
81610rcu_preempt0-21swapper/010:22:450
81600rcu_preempt25149-21df_abs12:10:080
81600rcu_preempt14209-21df_inode08:45:070
81600rcu_preempt0-21swapper/111:51:301
81600rcu_preempt0-21swapper/111:38:511
81600rcu_preempt0-21swapper/109:51:201
81600rcu_preempt0-21swapper/108:12:421
81600rcu_preempt0-21swapper/108:05:111
81600rcu_preempt0-21swapper/107:50:101
81600rcu_preempt0-21swapper/012:30:570
81600rcu_preempt0-21swapper/011:22:180
81590rcu_preempt27611-21rm12:14:570
81590rcu_preempt27611-21rm12:14:570
81590rcu_preempt21942-1kworker/1:2H10:55:091
81590rcu_preempt17103-1kworker/1:2H09:48:201
81590rcu_preempt10016-21df10:45:060
81590rcu_preempt0-21swapper/112:38:341
81590rcu_preempt0-21swapper/112:05:061
81590rcu_preempt0-21swapper/110:18:441
81590rcu_preempt0-21swapper/110:10:111
81590rcu_preempt0-21swapper/109:17:001
81590rcu_preempt0-21swapper/109:00:151
81590rcu_preempt0-21swapper/108:35:371
81590rcu_preempt0-21swapper/108:15:151
81590rcu_preempt0-21swapper/011:13:580
81590rcu_preempt0-21swapper/011:08:380
81590rcu_preempt0-21swapper/009:54:190
81580rcu_preempt16352-21ssh09:59:101
81580rcu_preempt12583-21latency_hist08:39:510
81580rcu_preempt0-21swapper/111:55:331
81580rcu_preempt0-21swapper/110:31:131
81580rcu_preempt0-21swapper/110:31:131
81580rcu_preempt0-21swapper/110:28:271
81580rcu_preempt0-21swapper/108:25:091
81580rcu_preempt0-21swapper/108:24:491
81580rcu_preempt0-21swapper/011:30:300
81580rcu_preempt0-21swapper/010:18:070
151950580irq/31-eth0-tx-41ktimersoftd/012:06:560
81570rcu_preempt7172-21ssh10:40:051
81570rcu_preempt2926-21ssh10:31:140
81570rcu_preempt2926-21ssh10:31:140
81570rcu_preempt26359-21ssh12:11:151
81570rcu_preempt19247-21ssh10:04:390
81570rcu_preempt18172-21ssh10:01:041
81570rcu_preempt0-21swapper/112:29:531
81570rcu_preempt0-21swapper/111:19:141
81570rcu_preempt0-21swapper/111:12:001
81570rcu_preempt0-21swapper/110:21:541
81570rcu_preempt0-21swapper/109:40:251
81570rcu_preempt0-21swapper/011:41:130
81570rcu_preempt0-21swapper/009:15:430
81570rcu_preempt0-21swapper/009:12:030
81560rcu_preempt23886-21sshd10:11:110
81560rcu_preempt21191-21ssh10:06:470
81560rcu_preempt21168-21df07:05:040
81560rcu_preempt0-21swapper/111:26:411
81560rcu_preempt0-21swapper/108:49:421
81560rcu_preempt0-21swapper/012:01:300
81560rcu_preempt0-21swapper/011:17:220
81560rcu_preempt0-21swapper/010:55:320
81560rcu_preempt0-21swapper/009:32:450
81560rcu_preempt0-21swapper/009:25:480
81560rcu_preempt0-21swapper/008:05:140
81550rcu_preempt13972-21ssh09:55:050
81550rcu_preempt0-21swapper/112:16:411
81550rcu_preempt0-21swapper/112:16:411
81550rcu_preempt0-21swapper/109:05:091
81550rcu_preempt0-21swapper/108:31:451
81550rcu_preempt0-21swapper/107:41:101
81540rcu_preempt12776-21ssh11:47:320
81540rcu_preempt0-21swapper/108:02:091
81540rcu_preempt0-21swapper/107:34:341
81540rcu_preempt0-21swapper/107:14:041
81540rcu_preempt0-21swapper/007:22:100
81540rcu_preempt0-21swapper/007:12:060
81520rcu_preempt2235-21snmpd07:17:511
81520rcu_preempt0-21swapper/107:20:151
81520rcu_preempt0-21swapper/009:03:110
81520rcu_preempt0-21swapper/007:46:000
81520rcu_preempt0-21swapper/007:39:490
81510rcu_preempt0-21swapper/008:12:100
81500rcu_preempt32519-21cpuspeed_turbos07:50:050
81490rcu_preempt17617-21munin-run08:59:510
81490rcu_preempt16949-21modprobe08:55:081
81490rcu_preempt0-21swapper/008:26:000
22160994947cyclictest946-21usb-storage08:30:040
81480rcu_preempt0-21swapper/008:19:580
22161994845cyclictest946-21usb-storage07:35:101
90050460irq/17-ehci_hcd41ktimersoftd/007:55:040
81440rcu_preempt28423-21users07:30:170
22160994442cyclictest946-21usb-storage09:05:050
81430rcu_preempt3281-21ntp_states08:00:130
22160994239cyclictest946-21usb-storage07:40:110
81410rcu_preempt6597-21fw_forwarded_lo08:15:080
22161994135cyclictest946-21usb-storage07:45:061
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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