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2026-08-20 - 10:16
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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 Thu Aug 20, 2026 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81820rcu_preempt0-21swapper/119:54:521
81810rcu_preempt19-21ksoftirqd/123:21:021
81790rcu_preempt19-21ksoftirqd/121:37:271
81780rcu_preempt0-21swapper/100:38:281
81740rcu_preempt24668-21df_abs19:59:401
81720rcu_preempt29037-21ls22:54:411
81720rcu_preempt19-21ksoftirqd/123:02:461
81710rcu_preempt30285-21wc23:59:470
81710rcu_preempt0-21swapper/119:14:471
81710rcu_preempt0-21swapper/022:39:460
81710rcu_preempt0-21swapper/022:39:250
81710rcu_preempt0-21swapper/000:39:490
81710rcu_preempt0-21swapper/000:04:530
81700rcu_preempt13797-21ssh23:27:560
81700rcu_preempt0-21swapper/023:03:480
81700rcu_preempt0-21swapper/022:58:080
81700rcu_preempt0-21swapper/021:49:460
81690rcu_preempt25305-21munin-run21:44:250
81690rcu_preempt19-21ksoftirqd/122:25:031
81690rcu_preempt0-21swapper/023:39:470
81690rcu_preempt0-21swapper/000:29:530
81680rcu_preempt16535-21sh23:33:590
81680rcu_preempt0-21swapper/021:58:000
81680rcu_preempt0-21swapper/021:37:430
81670rcu_preempt0-21swapper/023:34:540
81670rcu_preempt0-21swapper/019:14:460
81660rcu_preempt26355-21/usr/sbin/munin22:49:410
81660rcu_preempt0-21swapper/022:08:170
81650rcu_preempt25108-21ssh23:49:470
81650rcu_preempt19-21ksoftirqd/123:07:341
81650rcu_preempt19-21ksoftirqd/121:51:101
81650rcu_preempt0-21swapper/022:09:590
81640rcu_preempt0-21swapper/022:20:220
81640rcu_preempt0-21swapper/000:45:400
81630rcu_preempt19-21ksoftirqd/122:50:591
81630rcu_preempt14272-21irqstats00:34:460
81630rcu_preempt0-21swapper/022:45:500
81630rcu_preempt0-21swapper/000:09:400
81620rcu_preempt17526-21munin-run21:29:260
81620rcu_preempt0-21swapper/021:29:500
81620rcu_preempt0-21swapper/020:19:500
81610rcu_preempt19-21ksoftirqd/100:40:231
81610rcu_preempt1626-21ssh21:59:500
81600rcu_preempt7579-21missed_timers00:19:470
81600rcu_preempt19556-21df_abs19:39:380
81600rcu_preempt0-21swapper/023:47:300
81600rcu_preempt0-21swapper/021:23:360
81600rcu_preempt0-21swapper/020:39:390
81600rcu_preempt0-21swapper/000:28:370
81590rcu_preempt0-21swapper/120:09:531
81590rcu_preempt0-21swapper/023:22:250
81590rcu_preempt0-21swapper/021:46:230
81590rcu_preempt0-21swapper/020:14:450
81590rcu_preempt0-21swapper/020:04:450
81580rcu_preempt8209-21ssh00:20:321
81580rcu_preempt5223-21kernelversion20:49:450
81580rcu_preempt26739-21ssh23:53:441
81580rcu_preempt24336-21ssh23:49:151
81580rcu_preempt21180-21ssh23:42:071
81580rcu_preempt18060-21ssh23:35:091
81580rcu_preempt15081-21ssh22:26:350
81580rcu_preempt1340-21ssh00:06:291
81580rcu_preempt0-21swapper/123:33:271
81580rcu_preempt0-21swapper/122:49:201
81580rcu_preempt0-21swapper/122:10:361
81580rcu_preempt0-21swapper/121:42:411
81580rcu_preempt0-21swapper/121:24:511
81580rcu_preempt0-21swapper/022:16:520
81580rcu_preempt0-21swapper/020:09:550
81570rcu_preempt7229-21/usr/sbin/munin20:59:490
81570rcu_preempt5443-21ssh23:10:161
81570rcu_preempt3907-21ssh00:11:161
81570rcu_preempt32143-21ssh21:56:241
81570rcu_preempt29347-21ssh23:58:460
81570rcu_preempt2489-21ssh22:01:491
81570rcu_preempt12219-21latency_hist21:19:260
81570rcu_preempt0-21swapper/123:55:151
81570rcu_preempt0-21swapper/123:15:391
81570rcu_preempt0-21swapper/122:30:481
81570rcu_preempt0-21swapper/122:15:371
81570rcu_preempt0-21swapper/121:47:041
81570rcu_preempt0-21swapper/120:56:401
81570rcu_preempt0-21swapper/120:38:181
81570rcu_preempt0-21swapper/100:46:561
81570rcu_preempt0-21swapper/100:18:321
81570rcu_preempt0-21swapper/023:05:160
81560rcu_preempt3765-21if_can120:44:420
81560rcu_preempt31300-21ssh00:01:301
81560rcu_preempt14419-21ssh21:23:061
81560rcu_preempt12513-21ssh22:21:151
81560rcu_preempt0-21swapper/123:24:551
81560rcu_preempt0-21swapper/122:39:351
81560rcu_preempt0-21swapper/122:37:461
81560rcu_preempt0-21swapper/122:05:561
81560rcu_preempt0-21swapper/121:33:121
81560rcu_preempt0-21swapper/120:07:001
81560rcu_preempt0-21swapper/119:44:591
81560rcu_preempt0-21swapper/100:30:211
81560rcu_preempt0-21swapper/022:29:450
81560rcu_preempt0-21swapper/021:09:480
81560rcu_preempt0-21swapper/019:19:400
14170995647cyclictest945-21usb-storage20:54:121
81550rcu_preempt9460-21date21:04:510
81550rcu_preempt17616-21ps19:29:490
81550rcu_preempt10510-21ssh00:27:011
81550rcu_preempt0-21swapper/121:16:171
81550rcu_preempt0-21swapper/121:02:531
81550rcu_preempt0-21swapper/120:49:181
81550rcu_preempt0-21swapper/119:51:241
81550rcu_preempt0-21swapper/023:12:260
81550rcu_preempt0-21swapper/000:14:590
14170995546cyclictest945-21usb-storage20:21:181
81540rcu_preempt0-21swapper/119:42:391
81540rcu_preempt0-21swapper/119:24:281
81540rcu_preempt0-21swapper/119:23:171
81540rcu_preempt0-21swapper/019:44:430
14170995443cyclictest945-21usb-storage20:40:231
81530rcu_preempt0-21swapper/023:19:170
81530rcu_preempt0-21swapper/020:29:500
81530rcu_preempt0-21swapper/020:00:380
81520rcu_preempt0-21swapper/019:56:030
81520rcu_preempt0-21swapper/019:27:510
14170995249cyclictest945-21usb-storage20:31:491
14170995248cyclictest945-21usb-storage21:11:161
14170995248cyclictest945-21usb-storage21:07:211
14170995248cyclictest945-21usb-storage20:24:451
14170995248cyclictest945-21usb-storage20:14:491
81510rcu_preempt0-21swapper/020:56:480
14170995148cyclictest945-21usb-storage19:35:191
14170995148cyclictest945-21usb-storage19:29:541
81490rcu_preempt0-21swapper/020:37:160
81480rcu_preempt31019-21fw_conntrack20:24:420
1416999406cyclictest2467-21kworker/0:019:53:570
1416999399cyclictest2467-21kworker/0:019:34:470
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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