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2026-04-23 - 19:37
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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 Apr 23, 2026 12:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81780rcu_preempt29027-21iwlist09:11:100
81770rcu_preempt17925-21df_abs09:51:100
81760rcu_preempt28132-21ntpdc09:06:140
81760rcu_preempt13103-21cut08:06:180
81750rcu_preempt17453-21date10:46:190
81750rcu_preempt0-21swapper/111:41:161
81740rcu_preempt1210-21if_err_wlan007:21:120
81730rcu_preempt7020-21ssh10:28:240
81730rcu_preempt31959-21sh09:18:280
81730rcu_preempt31724-21ssh09:17:491
81730rcu_preempt0-21swapper/112:40:541
81730rcu_preempt0-21swapper/110:26:181
81730rcu_preempt0-21swapper/011:56:200
81730rcu_preempt0-21swapper/009:46:090
81720rcu_preempt9954-21diskmemload10:34:151
81720rcu_preempt4469-21switchtime11:21:200
81720rcu_preempt27888-21sh10:08:040
81720rcu_preempt24023-21wc11:56:191
81720rcu_preempt0-21swapper/112:30:381
81720rcu_preempt0-21swapper/111:51:481
81710rcu_preempt19883-21ntp_states10:51:180
81710rcu_preempt11443-21irqstats08:01:130
81710rcu_preempt0-21swapper/011:51:230
81700rcu_preempt4925-21sh10:25:471
81700rcu_preempt13171-21fw_conntrack12:36:100
81700rcu_preempt11266-1kworker/0:1H11:35:380
81700rcu_preempt0-21swapper/111:21:171
81700rcu_preempt0-21swapper/109:57:581
81700rcu_preempt0-21swapper/109:57:581
81700rcu_preempt0-21swapper/012:22:390
81690rcu_preempt9524-21diskstats09:36:090
81690rcu_preempt8486-21sh09:34:201
81690rcu_preempt31566-21ssh10:15:481
81690rcu_preempt25149-21df_inode08:56:080
81690rcu_preempt17018-21diskmemload09:49:471
81690rcu_preempt1663-21ssh10:19:500
81690rcu_preempt13494-21apt-get08:11:051
81690rcu_preempt0-21swapper/111:03:121
81690rcu_preempt0-21swapper/110:56:161
81690rcu_preempt0-21swapper/108:37:171
81680rcu_preempt8717-21ntp_states10:31:160
81680rcu_preempt5366-21ssh09:28:220
81680rcu_preempt4923-21fw_conntrack07:36:110
81680rcu_preempt31061-21ntp_states11:11:180
81680rcu_preempt29819-21diskmemload09:25:031
81680rcu_preempt18312-21ntp_states11:46:160
81680rcu_preempt0-21swapper/010:36:170
81670rcu_preempt29730-21users12:06:200
81670rcu_preempt15141-21sh10:42:431
81670rcu_preempt0-21swapper/112:14:221
81670rcu_preempt0-21swapper/112:07:281
81670rcu_preempt0-21swapper/111:20:201
81670rcu_preempt0-21swapper/111:08:041
81670rcu_preempt0-21swapper/109:26:011
81670rcu_preempt0-21swapper/108:31:111
81670rcu_preempt0-21swapper/011:40:590
81670rcu_preempt0-21swapper/011:02:140
81660rcu_preempt20480-21latency_hist09:55:541
81660rcu_preempt0-21swapper/112:01:281
81660rcu_preempt0-21swapper/110:47:231
81660rcu_preempt0-21swapper/110:05:571
81660rcu_preempt0-21swapper/109:36:051
81660rcu_preempt0-21swapper/107:56:171
147950660irq/31-eth0-tx-28907-21kworker/1:107:15:281
81650rcu_preempt10527-21kworker/0:207:11:100
81650rcu_preempt0-21swapper/111:40:451
81650rcu_preempt0-21swapper/111:27:441
81650rcu_preempt0-21swapper/110:54:001
81640rcu_preempt6294-21ssh11:26:050
81640rcu_preempt27239-21ssh12:02:110
81640rcu_preempt0-21swapper/111:32:071
81640rcu_preempt0-21swapper/111:15:181
81640rcu_preempt0-21swapper/110:02:411
81640rcu_preempt0-21swapper/108:51:211
81640rcu_preempt0-21swapper/108:42:321
81640rcu_preempt0-21swapper/108:28:001
81640rcu_preempt0-21swapper/107:41:041
81630rcu_preempt14002-21ssh11:39:400
81630rcu_preempt0-21swapper/110:36:101
81630rcu_preempt0-21swapper/109:41:181
81620rcu_preempt13989-21if_wlan010:41:110
81620rcu_preempt0-21swapper/112:44:311
81620rcu_preempt0-21swapper/111:47:331
81620rcu_preempt0-21swapper/108:06:181
81620rcu_preempt0-21swapper/107:16:141
81610rcu_preempt9100-21diskmemload12:28:250
81610rcu_preempt0-21swapper/112:24:501
81610rcu_preempt0-21swapper/112:20:541
81610rcu_preempt0-21swapper/008:41:110
81600rcu_preempt3811-21ssh10:22:290
81600rcu_preempt29819-21diskmemload12:35:290
81600rcu_preempt17368-21ssh12:43:100
81600rcu_preempt0-21swapper/108:23:191
81590rcu_preempt25132-21ssh10:03:310
81590rcu_preempt0-21swapper/112:31:101
81590rcu_preempt0-21swapper/108:46:081
81590rcu_preempt0-21swapper/107:26:111
31844995948cyclictest41ktimersoftd/008:49:250
81580rcu_preempt6587-21fw_forwarded_lo09:31:090
81580rcu_preempt0-21swapper/110:17:591
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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