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2026-04-26 - 03:21
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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 Sun Apr 26, 2026 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81910rcu_preempt0-21swapper/121:45:011
89050830irq/17-ehci_hcd0-21swapper/023:28:480
81750rcu_preempt22788-21df_abs20:21:141
89850740irq/17-ehci_hcd2225-21ssh23:06:061
81730rcu_preempt20249-21ls00:36:191
81730rcu_preempt20209-1kworker/1:2H00:44:541
81730rcu_preempt0-21swapper/121:54:501
81720rcu_preempt7203-21timerwakeupswit19:16:261
81710rcu_preempt0-21swapper/122:15:261
81710rcu_preempt0-21swapper/100:11:271
81710rcu_preempt0-21swapper/022:31:260
81700rcu_preempt8187-21df23:16:141
81700rcu_preempt22599-21sh22:43:410
81700rcu_preempt21974-21fw_conntrack21:46:160
81700rcu_preempt0-21swapper/121:32:571
81700rcu_preempt0-21swapper/121:21:231
81700rcu_preempt0-21swapper/120:06:291
81700rcu_preempt0-21swapper/019:11:130
81700rcu_preempt0-21swapper/000:21:220
81690rcu_preempt32153-21sh22:03:411
89850680irq/17-ehci_hcd16315-21ssh00:29:191
81680rcu_preempt8954-21/usr/sbin/munin00:16:171
81680rcu_preempt19997-21ssh22:39:271
81680rcu_preempt0-21swapper/123:44:101
81680rcu_preempt0-21swapper/122:07:101
81670rcu_preempt0-21swapper/119:24:311
81670rcu_preempt0-21swapper/021:39:130
147650670irq/28-eth0-rx-41ktimersoftd/000:37:430
89450660irq/17-ehci_hcd0-21swapper/023:13:100
81660rcu_preempt32554-21ssh23:59:181
81660rcu_preempt3-21ksoftirqd/022:07:370
81660rcu_preempt28370-21sed23:51:231
81660rcu_preempt22867-21ssh22:44:311
81660rcu_preempt14995-21apt-get19:51:120
81660rcu_preempt0-21swapper/123:24:461
89850650irq/17-ehci_hcd26239-21ssh22:51:111
81650rcu_preempt6371-21ssh21:19:071
81650rcu_preempt30280-21sh22:56:300
81650rcu_preempt24739-21sh00:44:030
81650rcu_preempt18803-21cat21:41:011
81650rcu_preempt0-21swapper/123:38:421
81650rcu_preempt0-21swapper/100:33:491
81650rcu_preempt0-21swapper/021:41:120
81640rcu_preempt24238-21ssh22:46:231
81640rcu_preempt0-21swapper/121:58:521
81640rcu_preempt0-21swapper/119:46:111
81640rcu_preempt0-21swapper/100:09:411
81640rcu_preempt0-21swapper/023:51:280
81640rcu_preempt0-21swapper/023:39:060
81640rcu_preempt0-21swapper/000:18:330
81630rcu_preempt22909-21ssh21:46:371
81630rcu_preempt0-21swapper/123:05:341
81630rcu_preempt0-21swapper/119:34:071
81630rcu_preempt0-21swapper/023:09:520
81630rcu_preempt0-21swapper/022:24:560
81630rcu_preempt0-21swapper/020:46:170
81630rcu_preempt0-21swapper/019:26:230
81630rcu_preempt0-21swapper/019:24:300
81620rcu_preempt26234-21ssh22:51:100
81620rcu_preempt25840-21ntpdc20:31:211
81620rcu_preempt15078-21ssh23:27:271
81620rcu_preempt0-21swapper/119:11:491
81620rcu_preempt0-21swapper/100:01:221
81620rcu_preempt0-21swapper/021:06:220
81610rcu_preempt4003-21munin-run21:16:000
81610rcu_preempt17431-21ssh22:35:241
81610rcu_preempt14050-21ssh22:28:311
81610rcu_preempt0-21swapper/123:49:121
81610rcu_preempt0-21swapper/123:33:541
81610rcu_preempt0-21swapper/122:19:531
81610rcu_preempt0-21swapper/022:01:460
81610rcu_preempt0-21swapper/021:52:250
81610rcu_preempt0-21swapper/021:28:350
89850600irq/17-ehci_hcd945-21usb-storage22:57:281
81600rcu_preempt5292-21ssh22:12:340
81600rcu_preempt15773-21ps19:51:241
81600rcu_preempt0-21swapper/022:47:240
81600rcu_preempt0-21swapper/021:56:230
81600rcu_preempt0-21swapper/021:22:430
81600rcu_preempt0-21swapper/021:19:340
81590rcu_preempt12091-21ssh21:28:401
81590rcu_preempt0-21swapper/100:21:231
81590rcu_preempt0-21swapper/023:41:170
81590rcu_preempt0-21swapper/022:26:160
81590rcu_preempt0-21swapper/022:18:200
81580rcu_preempt24812-21python20:26:251
81580rcu_preempt11743-21ssh22:25:221
81580rcu_preempt0-21swapper/119:56:111
81580rcu_preempt0-21swapper/119:28:041
81580rcu_preempt0-21swapper/021:34:360
81580rcu_preempt0-21swapper/000:14:040
81570rcu_preempt17936-21ssh23:32:140
81570rcu_preempt16025-21ssh00:28:320
81570rcu_preempt0-21swapper/120:57:331
81570rcu_preempt0-21swapper/120:41:371
81570rcu_preempt0-21swapper/120:40:341
81570rcu_preempt0-21swapper/119:36:191
81570rcu_preempt0-21swapper/023:18:040
81570rcu_preempt0-21swapper/020:31:250
81570rcu_preempt0-21swapper/020:21:250
81570rcu_preempt0-21swapper/019:32:350
81570rcu_preempt0-21swapper/000:00:240
81560rcu_preempt17062-21ssh00:31:070
81560rcu_preempt0-21swapper/121:11:231
81560rcu_preempt0-21swapper/121:06:161
81560rcu_preempt0-21swapper/023:24:310
81560rcu_preempt0-21swapper/019:46:260
81560rcu_preempt0-21swapper/019:20:070
81550rcu_preempt2650-21ssh00:03:080
81550rcu_preempt19897-21ssh22:39:090
81550rcu_preempt0-21swapper/120:18:451
81550rcu_preempt0-21swapper/120:15:281
81550rcu_preempt0-21swapper/119:41:221
81550rcu_preempt0-21swapper/023:46:160
81550rcu_preempt0-21swapper/023:04:200
81550rcu_preempt0-21swapper/020:56:190
81550rcu_preempt0-21swapper/019:56:140
81550rcu_preempt0-21swapper/000:06:210
147650550irq/28-eth0-rx-19-21ksoftirqd/121:01:131
147650550irq/28-eth0-rx-19-21ksoftirqd/120:46:111
81540rcu_preempt0-21swapper/123:14:071
81540rcu_preempt0-21swapper/120:05:091
81540rcu_preempt0-21swapper/021:01:200
81540rcu_preempt0-21swapper/020:45:380
81540rcu_preempt0-21swapper/020:36:260
81530rcu_preempt0-21swapper/020:30:290
81530rcu_preempt0-21swapper/019:43:080
81520rcu_preempt0-21swapper/120:53:531
81520rcu_preempt0-21swapper/020:20:320
81520rcu_preempt0-21swapper/020:06:010
81500rcu_preempt0-21swapper/019:36:220
6015994946cyclictest945-21usb-storage20:12:400
81460rcu_preempt18267-21awk20:01:210
6015994643cyclictest945-21usb-storage20:51:310
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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