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2025-12-19 - 07:45
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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 376 highest latencies:
System rackcslot3.osadl.org (updated Fri Dec 19, 2025 00:43:25)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81730rcu_preempt9646-21munin-run19:55:131
81720rcu_preempt1195-21ssh21:16:151
81720rcu_preempt0-21swapper/119:07:501
81710rcu_preempt31174-21irqstats22:50:340
81700rcu_preempt28631-21diskmemload22:10:290
81700rcu_preempt13342-21diskmemload23:12:031
81690rcu_preempt28631-21diskmemload00:17:241
81690rcu_preempt0-21swapper/119:10:311
81690rcu_preempt0-21swapper/021:45:370
81680rcu_preempt8430-21sh23:54:211
81680rcu_preempt28631-21diskmemload21:47:291
81680rcu_preempt0-21swapper/123:05:551
81680rcu_preempt0-21swapper/023:10:290
81670rcu_preempt9147-21sh22:17:140
81670rcu_preempt3303-21awk23:45:370
81670rcu_preempt28631-21diskmemload21:34:130
81670rcu_preempt0-21swapper/100:11:561
81670rcu_preempt0-21swapper/019:45:290
89450660irq/17-ehci_hcd17494-21sed21:40:390
81660rcu_preempt28631-21diskmemload22:52:131
81660rcu_preempt25140-21fw_forwarded_lo23:30:300
81660rcu_preempt0-21swapper/123:38:151
81660rcu_preempt0-21swapper/100:26:431
81650rcu_preempt8391-21munin-run19:50:131
81650rcu_preempt22668-21irqstats00:15:340
81650rcu_preempt15437-21kernelversion23:15:331
81650rcu_preempt0-21swapper/123:21:501
81650rcu_preempt0-21swapper/123:02:501
81650rcu_preempt0-21swapper/121:56:571
81650rcu_preempt0-21swapper/100:01:131
81640rcu_preempt0-21swapper/122:12:361
81640rcu_preempt0-21swapper/122:08:411
81640rcu_preempt0-21swapper/121:26:561
81630rcu_preempt7266-21ssh22:15:191
81630rcu_preempt3-21ksoftirqd/000:12:450
81630rcu_preempt16156-21ssh00:05:351
81620rcu_preempt29755-21df_inode19:05:280
81620rcu_preempt13720-21irqstats21:35:330
81620rcu_preempt0-21swapper/122:22:331
81620rcu_preempt0-21swapper/120:20:361
81620rcu_preempt0-21swapper/120:05:311
81620rcu_preempt0-21swapper/100:31:061
81620rcu_preempt0-21swapper/022:27:460
81620rcu_preempt0-21swapper/019:30:220
81620rcu_preempt0-21swapper/019:19:500
81610rcu_preempt11414-21ssh21:31:321
81610rcu_preempt0-21swapper/121:05:051
81610rcu_preempt0-21swapper/120:26:161
81610rcu_preempt0-21swapper/119:19:351
81610rcu_preempt0-21swapper/023:52:540
81610rcu_preempt0-21swapper/021:15:250
81610rcu_preempt0-21swapper/000:30:450
81610rcu_preempt0-21swapper/000:23:260
81600rcu_preempt31736-21ssh21:14:411
81600rcu_preempt28952-21ssh22:46:451
81600rcu_preempt27578-21df_inode22:45:290
81600rcu_preempt23036-21ssh21:50:131
81600rcu_preempt19115-21ssh21:44:071
81600rcu_preempt19111-21ssh22:32:021
81600rcu_preempt17151-21idleruntime-cro22:30:131
81600rcu_preempt15246-21ssh21:37:491
81600rcu_preempt0-21swapper/122:44:491
81600rcu_preempt0-21swapper/122:00:341
81600rcu_preempt0-21swapper/121:24:131
81600rcu_preempt0-21swapper/100:21:461
81600rcu_preempt0-21swapper/023:38:510
81600rcu_preempt0-21swapper/021:56:160
81600rcu_preempt0-21swapper/020:25:380
81600rcu_preempt0-21swapper/000:08:370
81590rcu_preempt4613-21ssh00:36:371
81590rcu_preempt29934-21timerandwakeup21:10:390
81590rcu_preempt11279-21ssh23:58:091
81590rcu_preempt0-21swapper/122:58:341
81590rcu_preempt0-21swapper/023:56:110
81590rcu_preempt0-21swapper/021:28:220
89050580irq/17-ehci_hcd0-21swapper/023:28:310
81580rcu_preempt4230-21ssh23:47:121
81580rcu_preempt31220-21ssh22:01:200
81580rcu_preempt21028-21sshd20:37:231
81580rcu_preempt0-21swapper/123:30:571
81580rcu_preempt0-21swapper/123:26:081
81580rcu_preempt0-21swapper/122:38:231
81580rcu_preempt0-21swapper/020:35:370
81580rcu_preempt0-21swapper/019:50:350
81570rcu_preempt0-21swapper/123:42:301
81570rcu_preempt0-21swapper/023:44:400
81570rcu_preempt0-21swapper/023:04:180
81570rcu_preempt0-21swapper/022:59:230
81570rcu_preempt0-21swapper/022:34:310
81570rcu_preempt0-21swapper/021:03:430
81570rcu_preempt0-21swapper/000:35:330
81560rcu_preempt25247-21fw_forwarded_lo20:55:301
81560rcu_preempt2455-21ssh22:07:040
81560rcu_preempt13789-21ssh00:01:120
81560rcu_preempt0-21swapper/120:34:231
81560rcu_preempt0-21swapper/119:20:281
81560rcu_preempt0-21swapper/023:09:280
81560rcu_preempt0-21swapper/022:21:210
81560rcu_preempt0-21swapper/019:35:320
81560rcu_preempt0-21swapper/000:27:530
147850560irq/30-eth0-tx-28631-21diskmemload23:18:220
81550rcu_preempt0-21swapper/119:40:481
81550rcu_preempt0-21swapper/119:40:481
81550rcu_preempt0-21swapper/119:35:241
81550rcu_preempt0-21swapper/119:27:581
81550rcu_preempt0-21swapper/022:40:400
81550rcu_preempt0-21swapper/021:24:520
81550rcu_preempt0-21swapper/020:55:380
81550rcu_preempt0-21swapper/020:47:220
81550rcu_preempt0-21swapper/020:44:220
81550rcu_preempt0-21swapper/020:17:290
81550rcu_preempt0-21swapper/020:13:380
81550rcu_preempt0-21swapper/019:55:280
81550rcu_preempt0-21swapper/019:21:120
81540rcu_preempt20580-21ssh23:23:300
81540rcu_preempt0-21swapper/120:48:501
81540rcu_preempt0-21swapper/120:11:541
81540rcu_preempt0-21swapper/119:57:141
81540rcu_preempt0-21swapper/119:30:251
81540rcu_preempt0-21swapper/022:39:220
81540rcu_preempt0-21swapper/021:51:070
81540rcu_preempt0-21swapper/020:50:330
81540rcu_preempt0-21swapper/019:28:130
81530rcu_preempt0-21swapper/120:01:141
81530rcu_preempt0-21swapper/020:24:440
81530rcu_preempt0-21swapper/020:00:230
81530rcu_preempt0-21swapper/019:40:370
81530rcu_preempt0-21swapper/019:40:370
81530rcu_preempt0-21swapper/019:10:280
89850520irq/17-ehci_hcd945-21usb-storage20:15:331
81510rcu_preempt19741-21timerwakeupswit20:30:400
81500rcu_preempt0-21swapper/120:40:351
147650490irq/28-eth0-rx-0-21swapper/120:50:131
30670994744cyclictest945-21usb-storage21:05:251
30670994744cyclictest945-21usb-storage21:05:251
81390rcu_preempt0-21swapper/020:05:350
30669993835cyclictest945-21usb-storage21:05:270
30669993835cyclictest945-21usb-storage21:05:270
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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