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2026-04-03 - 14:13
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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 highest latencies:
System rackcslot3.osadl.org (updated Fri Apr 03, 2026 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81790rcu_preempt22157-21rm22:16:471
81770rcu_preempt32340-21cron23:39:591
81760rcu_preempt0-21swapper/100:10:181
81740rcu_preempt13297-21cut20:40:221
81710rcu_preempt25475-21ntpq23:25:220
81710rcu_preempt21111-21diskmemload23:32:170
81710rcu_preempt21111-21diskmemload23:16:090
81710rcu_preempt15470-21sh00:09:140
81710rcu_preempt0-21swapper/020:30:210
81710rcu_preempt0-21swapper/019:45:240
81700rcu_preempt2446-21sh22:40:291
81700rcu_preempt18276-21diskmemload23:11:270
81700rcu_preempt12646-21ssh23:00:250
81700rcu_preempt0-21swapper/121:59:211
81700rcu_preempt0-21swapper/121:59:211
81700rcu_preempt0-21swapper/023:52:120
81700rcu_preempt0-21swapper/022:32:010
147650700irq/28-eth0-rx-41ktimersoftd/000:04:250
81690rcu_preempt0-21swapper/123:43:051
81690rcu_preempt0-21swapper/121:24:151
81690rcu_preempt0-21swapper/022:40:280
81680rcu_preempt29636-21kworker/0:221:58:440
81680rcu_preempt29636-21kworker/0:221:58:440
81680rcu_preempt21111-21diskmemload21:41:220
81680rcu_preempt19797-21ssh22:12:420
81680rcu_preempt0-21swapper/123:07:141
81680rcu_preempt0-21swapper/122:46:501
81680rcu_preempt0-21swapper/121:49:091
81680rcu_preempt0-21swapper/121:27:111
81680rcu_preempt0-21swapper/119:15:161
81680rcu_preempt0-21swapper/100:40:251
81680rcu_preempt0-21swapper/023:35:070
81670rcu_preempt13329-21tr00:05:121
81670rcu_preempt0-21swapper/123:32:291
81670rcu_preempt0-21swapper/119:11:411
81670rcu_preempt0-21swapper/100:04:391
81670rcu_preempt0-21swapper/021:21:590
81660rcu_preempt992-21apt-get19:55:111
81660rcu_preempt27059-21apt-get19:30:090
81660rcu_preempt17011-21df_abs23:10:131
81660rcu_preempt1250-21jbd2/sda3-800:19:591
81660rcu_preempt0-21swapper/123:01:311
81660rcu_preempt0-21swapper/122:20:181
81660rcu_preempt0-21swapper/000:15:320
81650rcu_preempt21111-21diskmemload21:25:510
81650rcu_preempt18674-21latency_hist21:04:590
81650rcu_preempt15609-21fw_forwarded_lo22:05:150
81650rcu_preempt12714-21ssh22:00:090
81650rcu_preempt0-21swapper/100:28:201
81650rcu_preempt0-21swapper/022:22:340
81640rcu_preempt0-21swapper/023:56:360
81640rcu_preempt0-21swapper/020:15:170
81640rcu_preempt0-21swapper/000:26:220
89850630irq/17-ehci_hcd0-21swapper/019:10:150
81630rcu_preempt23865-21ssh21:19:521
81630rcu_preempt22156-21wc21:15:240
81630rcu_preempt0-21swapper/121:14:581
81630rcu_preempt0-21swapper/022:25:150
81630rcu_preempt0-21swapper/000:20:170
81620rcu_preempt24992-21ssh23:25:151
81620rcu_preempt2387-21cpu21:40:111
81620rcu_preempt21111-21diskmemload21:36:510
81620rcu_preempt0-21swapper/123:57:361
81620rcu_preempt0-21swapper/122:55:271
81620rcu_preempt0-21swapper/122:25:271
81620rcu_preempt0-21swapper/121:35:561
81620rcu_preempt0-21swapper/121:04:541
81620rcu_preempt0-21swapper/119:25:121
81620rcu_preempt0-21swapper/023:40:260
81620rcu_preempt0-21swapper/019:35:210
81610rcu_preempt3266-21latency23:45:201
81610rcu_preempt31444-21ssh22:35:180
81610rcu_preempt26333-21timerandwakeup00:30:260
81610rcu_preempt2166-21munin-run19:59:580
81610rcu_preempt21134-21ssh00:20:331
81610rcu_preempt0-21swapper/123:15:551
81610rcu_preempt0-21swapper/122:32:541
81610rcu_preempt0-21swapper/122:13:541
81610rcu_preempt0-21swapper/122:04:451
81610rcu_preempt0-21swapper/119:30:191
81610rcu_preempt0-21swapper/022:49:110
81610rcu_preempt0-21swapper/021:50:160
81610rcu_preempt0-21swapper/021:50:160
81610rcu_preempt0-21swapper/020:35:120
81600rcu_preempt0-21swapper/122:37:141
81600rcu_preempt0-21swapper/121:08:151
81600rcu_preempt0-21swapper/120:55:081
81600rcu_preempt0-21swapper/119:45:091
81600rcu_preempt0-21swapper/100:34:431
81590rcu_preempt29723-21http_loadtime21:30:161
81590rcu_preempt16593-21ssh22:05:521
81590rcu_preempt11521-21munin-run22:59:590
81590rcu_preempt0-21swapper/123:22:441
81590rcu_preempt0-21swapper/121:50:231
81590rcu_preempt0-21swapper/121:50:231
81590rcu_preempt0-21swapper/120:50:121
81590rcu_preempt0-21swapper/119:54:501
81590rcu_preempt0-21swapper/020:20:150
81590rcu_preempt0-21swapper/019:40:220
81580rcu_preempt6977-21ssh23:51:511
81580rcu_preempt31319-21ssh21:33:120
81580rcu_preempt29848-21ssh00:38:421
81580rcu_preempt0-21swapper/120:35:201
81580rcu_preempt0-21swapper/120:20:091
81580rcu_preempt0-21swapper/120:10:201
81580rcu_preempt0-21swapper/119:21:461
81580rcu_preempt0-21swapper/023:45:210
81580rcu_preempt0-21swapper/021:14:370
81570rcu_preempt8691-21ssh22:54:230
81570rcu_preempt21111-21diskmemload22:17:450
81570rcu_preempt16445-21diskstats20:55:120
81570rcu_preempt0-21swapper/122:52:421
81570rcu_preempt0-21swapper/120:48:381
81570rcu_preempt0-21swapper/120:33:011
81570rcu_preempt0-21swapper/119:41:341
81570rcu_preempt0-21swapper/023:07:260
81560rcu_preempt7204-21ssh21:49:370
81560rcu_preempt21111-21diskmemload00:44:320
81560rcu_preempt17083-21ssh00:10:300
81560rcu_preempt0-21swapper/023:20:350
81550rcu_preempt0-21swapper/020:45:270
81550rcu_preempt0-21swapper/020:28:310
81550rcu_preempt0-21swapper/000:35:190
147650540irq/28-eth0-rx-945-21usb-storage19:20:010
81520rcu_preempt478-21wc19:50:210
81520rcu_preempt3843-21fw_conntrack20:05:131
81520rcu_preempt0-21swapper/020:40:390
81520rcu_preempt0-21swapper/020:09:190
147950520irq/31-eth0-tx-0-21swapper/020:51:130
81510rcu_preempt3431-21munin-run20:04:580
81510rcu_preempt18996-21fw_forwarded_lo21:05:130
81510rcu_preempt0-21swapper/019:25:470
81510rcu_preempt0-21swapper/019:18:490
81470rcu_preempt28586-21fw_forwarded_lo19:35:141
81450rcu_preempt3-21ksoftirqd/020:09:590
81400rcu_preempt2910-21sed20:00:191
23148993834cyclictest945-21usb-storage20:25:081
23148993532cyclictest945-21usb-storage20:15:231
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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