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2025-11-30 - 19:20
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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 Nov 30, 2025 12:43:25)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81970rcu_preempt20779-21ssh09:29:150
81760rcu_preempt0-21swapper/009:42:130
81750rcu_preempt0-21swapper/112:36:321
81720rcu_preempt7679-21cut09:00:061
81720rcu_preempt7679-21cut09:00:061
81710rcu_preempt21375-21if_wlan011:25:061
81710rcu_preempt0-21swapper/111:35:051
81700rcu_preempt9571-21diskmemload12:01:101
81700rcu_preempt19512-21sh10:24:060
81690rcu_preempt22826-21cpuspeed_turbos10:30:030
81690rcu_preempt0-21swapper/109:25:101
81690rcu_preempt0-21swapper/109:10:071
81680rcu_preempt28032-21ssh10:39:271
81680rcu_preempt0-21swapper/110:18:491
81680rcu_preempt0-21swapper/110:00:271
81680rcu_preempt0-21swapper/009:05:130
81670rcu_preempt5286-21grep08:50:071
81670rcu_preempt0-21swapper/112:16:291
81670rcu_preempt0-21swapper/009:46:020
81660rcu_preempt29346-21apt-get11:40:010
81660rcu_preempt18555-21ssh11:20:060
81660rcu_preempt11587-21cyclictest08:56:281
81660rcu_preempt11030-21memory07:05:071
81660rcu_preempt0-21swapper/111:15:011
81660rcu_preempt0-21swapper/107:45:091
89650650irq/17-ehci_hcd41ktimersoftd/007:06:260
81650rcu_preempt10818-21ssh11:05:211
81650rcu_preempt0-21swapper/109:18:061
81650rcu_preempt0-21swapper/107:55:011
81650rcu_preempt0-21swapper/011:13:300
81640rcu_preempt9571-21diskmemload12:10:091
81640rcu_preempt27015-21df_abs08:10:021
81640rcu_preempt26950-21ssh09:39:581
81640rcu_preempt0-21swapper/111:56:321
81640rcu_preempt0-21swapper/111:50:131
81640rcu_preempt0-21swapper/111:40:271
81640rcu_preempt0-21swapper/110:42:361
81640rcu_preempt0-21swapper/109:56:531
81630rcu_preempt24617-21sendmail_mailqu11:30:111
81630rcu_preempt13035-21cpu07:15:020
81630rcu_preempt0-21swapper/111:01:091
81630rcu_preempt0-21swapper/108:30:041
81620rcu_preempt14360-21ssh11:12:021
81620rcu_preempt0-21swapper/108:00:051
81620rcu_preempt0-21swapper/011:32:360
81620rcu_preempt0-21swapper/009:50:120
81610rcu_preempt9571-21diskmemload10:27:580
81610rcu_preempt24084-21ssh10:30:521
81610rcu_preempt19368-21ssh12:21:021
81610rcu_preempt17411-21ssh09:21:591
81610rcu_preempt0-21swapper/111:46:241
81610rcu_preempt0-21swapper/007:20:160
81600rcu_preempt22388-21ssh09:30:251
81600rcu_preempt22298-21ssh10:29:101
81600rcu_preempt11393-21ssh10:10:010
81600rcu_preempt0-21swapper/112:06:431
81600rcu_preempt0-21swapper/111:20:041
81600rcu_preempt0-21swapper/110:54:061
81600rcu_preempt0-21swapper/109:54:221
81600rcu_preempt0-21swapper/011:47:590
81600rcu_preempt0-21swapper/009:56:570
81590rcu_preempt9932-21ssh10:05:551
81590rcu_preempt5710-21ssh10:55:491
81590rcu_preempt21970-21ssh12:26:021
81590rcu_preempt12625-21ssh10:10:291
81590rcu_preempt0-21swapper/112:34:371
81590rcu_preempt0-21swapper/110:20:081
81590rcu_preempt0-21swapper/109:38:091
81590rcu_preempt0-21swapper/107:10:021
81590rcu_preempt0-21swapper/012:00:120
81590rcu_preempt0-21swapper/011:35:550
81590rcu_preempt0-21swapper/007:30:010
81590rcu_preempt0-21swapper/007:10:030
81580rcu_preempt8541-21ssh11:01:000
81580rcu_preempt32395-21ssh10:45:431
81580rcu_preempt3-21ksoftirqd/011:26:290
81580rcu_preempt29697-21ssh10:40:480
81580rcu_preempt23207-21ssh09:32:590
81580rcu_preempt0-21swapper/107:19:471
81580rcu_preempt0-21swapper/012:17:580
81580rcu_preempt0-21swapper/007:50:150
81570rcu_preempt5926-21grep10:00:030
81570rcu_preempt16920-21df_abs07:30:011
81570rcu_preempt16788-21ssh11:16:010
81570rcu_preempt0-21swapper/109:45:071
81570rcu_preempt0-21swapper/108:15:081
81570rcu_preempt0-21swapper/107:50:051
81570rcu_preempt0-21swapper/012:39:290
81570rcu_preempt0-21swapper/011:58:250
81570rcu_preempt0-21swapper/010:55:510
81570rcu_preempt0-21swapper/010:17:350
89650560irq/17-ehci_hcd19666-21ssh12:22:140
81560rcu_preempt3218-21ssh10:51:580
81560rcu_preempt24424-21ssh12:30:170
81560rcu_preempt22148-21ssh12:26:410
81560rcu_preempt0-21swapper/108:42:321
81560rcu_preempt0-21swapper/107:36:371
81560rcu_preempt0-21swapper/011:07:260
81560rcu_preempt0-21swapper/010:47:080
81560rcu_preempt0-21swapper/010:05:070
81560rcu_preempt0-21swapper/008:35:040
81560rcu_preempt0-21swapper/008:09:470
81550rcu_preempt27195-21ssh10:36:470
81550rcu_preempt17714-21ssh09:22:520
81550rcu_preempt0-21swapper/108:45:061
81550rcu_preempt0-21swapper/108:26:491
81550rcu_preempt0-21swapper/108:04:491
81550rcu_preempt0-21swapper/107:44:371
81550rcu_preempt0-21swapper/012:11:210
81550rcu_preempt0-21swapper/009:16:280
81550rcu_preempt0-21swapper/008:52:000
81550rcu_preempt0-21swapper/007:36:470
81540rcu_preempt9571-21diskmemload12:05:050
81540rcu_preempt25705-21ssh09:36:430
81540rcu_preempt11546-21ssh09:12:010
81540rcu_preempt0-21swapper/108:21:021
81540rcu_preempt0-21swapper/107:24:471
81540rcu_preempt0-21swapper/008:25:140
81530rcu_preempt661-21cat08:34:470
81530rcu_preempt0-21swapper/011:52:360
81530rcu_preempt0-21swapper/007:57:440
81530rcu_preempt0-21swapper/007:45:070
81530rcu_preempt0-21swapper/007:43:170
81520rcu_preempt1552-21ntp_states08:35:091
81520rcu_preempt0-21swapper/008:56:260
81520rcu_preempt0-21swapper/008:46:140
81520rcu_preempt0-21swapper/008:02:110
81510rcu_preempt25877-21fw_conntrack08:05:040
81490rcu_preempt13704-21ntp_states07:15:101
81470rcu_preempt0-21swapper/008:42:540
11590994643cyclictest946-21usb-storage09:05:011
81450rcu_preempt30329-21python08:20:120
11589994224cyclictest7186-21apt-get09:00:000
11589994224cyclictest7186-21apt-get09:00:000
151450390irq/28-eth0-rx-28973-21/usr/sbin/munin08:15:130
90050380irq/17-ehci_hcd0-21swapper/007:27:420
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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