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2025-12-17 - 06:49
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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 Wed Dec 17, 2025 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81820rcu_preempt0-21swapper/019:05:200
81800rcu_preempt3-21ksoftirqd/022:21:090
81750rcu_preempt14309-21/usr/sbin/munin23:45:251
81740rcu_preempt11802-21users23:40:341
81710rcu_preempt6860-21diskmemload22:07:010
81710rcu_preempt6372-21diskstats22:45:231
81710rcu_preempt28295-21switchtime21:40:341
81700rcu_preempt6860-21diskmemload21:35:310
81700rcu_preempt6860-21diskmemload21:30:240
81690rcu_preempt6860-21diskmemload00:35:440
81690rcu_preempt6860-21diskmemload00:23:160
81690rcu_preempt5208-21fw_forwarded_lo21:55:251
81690rcu_preempt0-21swapper/122:25:341
81680rcu_preempt6860-21diskmemload21:53:330
81680rcu_preempt2907-21df22:40:210
81680rcu_preempt13381-21sh21:19:331
81680rcu_preempt10785-21df23:40:210
81680rcu_preempt0-21swapper/022:17:150
81670rcu_preempt6860-21diskmemload23:40:031
81670rcu_preempt4544-21sh22:42:001
81670rcu_preempt30138-21sh22:31:511
81670rcu_preempt22953-21sh23:58:171
81660rcu_preempt6873-21sh23:34:491
81660rcu_preempt31286-21sh23:21:461
81650rcu_preempt860-21sh21:49:081
81650rcu_preempt3-21ksoftirqd/023:15:450
81650rcu_preempt1689-21sh22:38:151
81650rcu_preempt0-21swapper/119:05:191
81650rcu_preempt0-21swapper/100:12:291
81650rcu_preempt0-21swapper/021:24:150
81650rcu_preempt0-21swapper/021:14:500
81650rcu_preempt0-21swapper/000:11:390
81640rcu_preempt3-21ksoftirqd/021:16:060
81640rcu_preempt26243-21sh00:03:081
81640rcu_preempt0-21swapper/123:29:131
81640rcu_preempt0-21swapper/123:18:061
81640rcu_preempt0-21swapper/123:14:551
81640rcu_preempt0-21swapper/100:06:541
81630rcu_preempt0-21swapper/100:32:541
81630rcu_preempt0-21swapper/022:01:030
81620rcu_preempt9817-21if_can122:50:251
81620rcu_preempt3-21ksoftirqd/000:28:370
81620rcu_preempt14897-21ps19:30:290
81620rcu_preempt0-21swapper/119:55:211
81610rcu_preempt26598-21/usr/sbin/munin20:20:071
81610rcu_preempt0-21swapper/122:20:291
81610rcu_preempt0-21swapper/121:30:471
81610rcu_preempt0-21swapper/121:12:371
81610rcu_preempt0-21swapper/121:06:351
81610rcu_preempt0-21swapper/120:51:121
81610rcu_preempt0-21swapper/020:50:290
81610rcu_preempt0-21swapper/019:25:070
81600rcu_preempt6860-21diskmemload00:05:170
81600rcu_preempt17275-21apt-get23:50:181
81600rcu_preempt14150-21ssh22:08:411
81600rcu_preempt0-21swapper/123:00:581
81600rcu_preempt0-21swapper/122:14:271
81600rcu_preempt0-21swapper/119:30:501
81600rcu_preempt0-21swapper/100:16:371
81600rcu_preempt0-21swapper/023:37:200
81600rcu_preempt0-21swapper/023:29:460
81600rcu_preempt0-21swapper/022:12:130
81590rcu_preempt6646-21ssh00:22:121
81590rcu_preempt3-21ksoftirqd/023:04:490
81590rcu_preempt0-21swapper/122:19:481
81590rcu_preempt0-21swapper/121:50:201
81590rcu_preempt0-21swapper/120:10:261
81590rcu_preempt0-21swapper/100:28:391
81590rcu_preempt0-21swapper/000:34:280
81590rcu_preempt0-21swapper/000:19:250
81580rcu_preempt6864-21munin-run21:10:070
81580rcu_preempt3-21ksoftirqd/023:52:340
81580rcu_preempt3-21ksoftirqd/023:33:170
81580rcu_preempt3-21ksoftirqd/023:20:350
81580rcu_preempt3-21ksoftirqd/022:47:400
81580rcu_preempt3-21ksoftirqd/022:34:520
81580rcu_preempt25335-21ssh21:36:081
81580rcu_preempt22799-21sshd20:00:531
81580rcu_preempt18126-21ps21:25:321
81580rcu_preempt14034-21df21:20:221
81580rcu_preempt0-21swapper/122:55:291
81580rcu_preempt0-21swapper/120:05:301
81580rcu_preempt0-21swapper/100:36:391
81580rcu_preempt0-21swapper/022:55:080
81580rcu_preempt0-21swapper/020:20:210
81570rcu_preempt6887-21ssh21:57:290
81570rcu_preempt30084-21ps20:30:301
81570rcu_preempt3-21ksoftirqd/023:57:290
81570rcu_preempt3-21ksoftirqd/023:14:040
81570rcu_preempt3-21ksoftirqd/022:27:400
81570rcu_preempt1758-21sshd20:45:591
81570rcu_preempt10424-21ssh22:50:320
81570rcu_preempt0-21swapper/120:27:461
81570rcu_preempt0-21swapper/119:50:311
81570rcu_preempt0-21swapper/119:24:551
81570rcu_preempt0-21swapper/023:46:570
81570rcu_preempt0-21swapper/022:35:440
81560rcu_preempt3-21ksoftirqd/021:47:340
81560rcu_preempt25624-21df_abs20:15:230
81560rcu_preempt22039-21ssh23:08:350
81560rcu_preempt10844-21ssh22:03:461
81560rcu_preempt0-21swapper/123:09:181
81560rcu_preempt0-21swapper/120:22:131
81560rcu_preempt0-21swapper/119:45:281
81550rcu_preempt27217-21ssh21:40:130
81550rcu_preempt0-21swapper/120:45:031
81550rcu_preempt0-21swapper/120:35:511
81550rcu_preempt0-21swapper/021:25:210
81550rcu_preempt0-21swapper/020:28:480
81550rcu_preempt0-21swapper/019:41:460
81550rcu_preempt0-21swapper/019:15:400
81550rcu_preempt0-21swapper/000:04:470
81540rcu_preempt0-21swapper/121:04:441
81540rcu_preempt0-21swapper/119:26:521
81540rcu_preempt0-21swapper/119:15:141
81530rcu_preempt0-21swapper/120:55:531
81530rcu_preempt0-21swapper/119:40:321
81530rcu_preempt0-21swapper/019:36:300
81520rcu_preempt0-21swapper/020:58:430
81520rcu_preempt0-21swapper/020:45:080
81520rcu_preempt0-21swapper/020:13:460
81510rcu_preempt16485-21sshd19:39:041
81510rcu_preempt0-21swapper/019:50:380
81510rcu_preempt0-21swapper/019:10:250
8888995048cyclictest41ktimersoftd/020:08:440
81490rcu_preempt32517-21ntp_states20:40:320
81490rcu_preempt20695-21fw_conntrack19:55:220
81490rcu_preempt0-21swapper/021:01:540
81460rcu_preempt31600-21users20:35:310
8888994543cyclictest945-21usb-storage20:00:220
81440rcu_preempt18394-21irqstats19:45:270
81330rcu_preempt3-21ksoftirqd/019:30:070
81300rcu_preempt30154-21grep20:30:310
147950300irq/31-eth0-tx-0-21swapper/119:12:051
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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