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2025-11-07 - 19:09
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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 100 highest latencies:
System rackcslot3.osadl.org (updated Thu Nov 06, 2025 12:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81790rcu_preempt754-21diskmemload09:31:151
81780rcu_preempt0-21swapper/010:59:020
81770rcu_preempt19-21ksoftirqd/109:52:511
81750rcu_preempt1911-21cpuspeed_turbos07:11:021
81750rcu_preempt13082-21latency_hist07:55:471
81740rcu_preempt6209-21df_inode10:21:031
81740rcu_preempt0-21swapper/011:28:300
81720rcu_preempt6157-21ntpq12:16:101
81720rcu_preempt11452-21sh10:30:480
81700rcu_preempt2224-21snmpd09:30:191
81700rcu_preempt17465-21diskstats10:41:051
81700rcu_preempt0-21swapper/112:01:121
81700rcu_preempt0-21swapper/007:16:140
81690rcu_preempt4100-21ssh09:21:001
81690rcu_preempt0-21swapper/112:36:141
81690rcu_preempt0-21swapper/111:34:061
81690rcu_preempt0-21swapper/111:00:141
81690rcu_preempt0-21swapper/110:32:541
81690rcu_preempt0-21swapper/110:19:051
81690rcu_preempt0-21swapper/110:08:271
81690rcu_preempt0-21swapper/110:02:191
81680rcu_preempt24397-21sh08:40:470
81680rcu_preempt0-21swapper/109:50:401
81680rcu_preempt0-21swapper/012:18:460
141050680irq/28-eth0-rx-181ktimersoftd/109:36:591
81670rcu_preempt13218-21apt-get07:55:581
81670rcu_preempt0-21swapper/110:51:581
81670rcu_preempt0-21swapper/010:30:450
81670rcu_preempt0-21swapper/010:30:450
81660rcu_preempt5879-21df_abs07:26:031
81660rcu_preempt21063-21ssh09:50:470
81660rcu_preempt0-21swapper/112:40:541
81660rcu_preempt0-21swapper/112:34:171
81660rcu_preempt0-21swapper/112:26:021
81660rcu_preempt0-21swapper/111:50:131
81660rcu_preempt0-21swapper/109:16:131
81660rcu_preempt0-21swapper/108:01:091
81650rcu_preempt0-21swapper/112:22:131
81650rcu_preempt0-21swapper/111:37:171
81650rcu_preempt0-21swapper/111:37:171
81650rcu_preempt0-21swapper/108:35:471
81650rcu_preempt0-21swapper/108:26:061
81650rcu_preempt0-21swapper/012:04:450
81650rcu_preempt0-21swapper/009:44:220
81640rcu_preempt9441-21/usr/sbin/munin07:41:050
81640rcu_preempt0-21swapper/109:01:231
81640rcu_preempt0-21swapper/012:27:100
81640rcu_preempt0-21swapper/011:36:070
81640rcu_preempt0-21swapper/011:36:070
81640rcu_preempt0-21swapper/011:33:150
89550630irq/17-ehci_hcd0-21swapper/009:51:420
81630rcu_preempt754-21diskmemload11:56:411
81630rcu_preempt754-21diskmemload11:11:131
81630rcu_preempt4333-21munin-run11:15:470
81630rcu_preempt15746-21sshd08:06:020
81630rcu_preempt0-21swapper/012:36:130
81630rcu_preempt0-21swapper/012:15:480
81630rcu_preempt0-21swapper/010:51:050
81630rcu_preempt0-21swapper/010:35:580
81630rcu_preempt0-21swapper/007:21:120
81620rcu_preempt7708-21ps07:31:130
81620rcu_preempt7708-21ps07:31:130
81620rcu_preempt4511-21/usr/sbin/munin11:16:061
81620rcu_preempt30071-21ssh11:02:551
81620rcu_preempt26910-21apt-get11:56:000
81620rcu_preempt2538-21ssh10:15:051
81620rcu_preempt24991-21if_wlan008:41:081
81620rcu_preempt19815-21timerwakeupswit12:41:180
81620rcu_preempt0-21swapper/112:11:021
81620rcu_preempt0-21swapper/110:28:541
81620rcu_preempt0-21swapper/110:28:541
81620rcu_preempt0-21swapper/011:51:130
81620rcu_preempt0-21swapper/008:56:000
81620rcu_preempt0-21swapper/008:51:040
81620rcu_preempt0-21swapper/008:46:060
89950610irq/17-ehci_hcd0-21swapper/107:48:121
81610rcu_preempt20193-21ssh11:43:091
81610rcu_preempt1069-21ssh11:09:521
81610rcu_preempt0-21swapper/110:46:491
81610rcu_preempt0-21swapper/110:37:001
81610rcu_preempt0-21swapper/010:46:150
81610rcu_preempt0-21swapper/010:05:590
81600rcu_preempt754-21diskmemload09:37:360
81600rcu_preempt0-21swapper/109:56:061
81600rcu_preempt0-21swapper/108:31:001
81600rcu_preempt0-21swapper/009:31:400
81600rcu_preempt0-21swapper/008:16:140
141050600irq/28-eth0-rx-181ktimersoftd/111:54:441
81590rcu_preempt8608-21if_eth007:36:051
81590rcu_preempt754-21diskmemload09:41:511
81590rcu_preempt0-21swapper/112:10:401
81590rcu_preempt0-21swapper/111:28:091
81590rcu_preempt0-21swapper/111:25:301
81580rcu_preempt1388-21munin-run11:10:470
81580rcu_preempt0-21swapper/108:51:541
81580rcu_preempt0-21swapper/011:49:560
81580rcu_preempt0-21swapper/010:11:140
81580rcu_preempt0-21swapper/009:29:590
81580rcu_preempt0-21swapper/008:22:380
81580rcu_preempt0-21swapper/008:11:130
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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