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2026-04-25 - 12:20
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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 Sat Apr 25, 2026 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81790rcu_preempt14215-1kworker/1:1H21:32:241
81770rcu_preempt12755-21sh22:06:181
81740rcu_preempt30877-1kworker/1:2H00:44:571
81740rcu_preempt15239-21sh23:06:350
81740rcu_preempt0-21swapper/021:36:160
81720rcu_preempt7274-21apt-get23:51:111
81720rcu_preempt31586-21ssh22:39:301
81720rcu_preempt30219-21cpuspeed_turbos20:06:111
81720rcu_preempt0-21swapper/121:27:461
81710rcu_preempt28604-21ssh22:34:170
81710rcu_preempt0-21swapper/100:16:161
81710rcu_preempt0-21swapper/021:41:110
147650710irq/28-eth0-rx-0-21swapper/119:12:121
81700rcu_preempt21833-21sh23:19:281
81700rcu_preempt1094-21sh00:37:081
81700rcu_preempt1094-21sh00:37:081
81700rcu_preempt0-21swapper/123:06:181
81700rcu_preempt0-21swapper/121:36:171
81700rcu_preempt0-21swapper/023:58:240
81700rcu_preempt0-21swapper/023:31:490
81690rcu_preempt0-21swapper/122:24:351
81690rcu_preempt0-21swapper/100:03:361
81690rcu_preempt0-21swapper/000:06:250
81680rcu_preempt6610-21apt-get21:56:101
81680rcu_preempt3257-21kworker/0:021:19:170
81680rcu_preempt24564-21diskmemload23:23:460
81680rcu_preempt19883-21munin-run19:25:581
81680rcu_preempt15290-21diskmemload00:24:131
81680rcu_preempt0-21swapper/122:13:171
81680rcu_preempt0-21swapper/121:18:571
81680rcu_preempt0-21swapper/100:30:241
81680rcu_preempt0-21swapper/100:15:261
81670rcu_preempt24882-21sshd19:41:230
81670rcu_preempt0-21swapper/122:05:581
81670rcu_preempt0-21swapper/100:34:201
81660rcu_preempt14015-21cron21:10:581
81660rcu_preempt0-21swapper/100:10:431
81660rcu_preempt0-21swapper/019:11:130
81660rcu_preempt0-21swapper/000:34:210
81650rcu_preempt2639-21turbostat.cron20:30:520
81650rcu_preempt21027-21timerandwakeup19:26:230
81650rcu_preempt18610-21missed_timers22:16:170
81650rcu_preempt13030-21ssh00:01:120
81650rcu_preempt0-21swapper/121:45:051
81650rcu_preempt0-21swapper/119:31:221
81650rcu_preempt0-21swapper/021:51:250
81650rcu_preempt0-21swapper/000:15:260
89850640irq/17-ehci_hcd26758-21ssh21:35:190
81640rcu_preempt27089-21ssh22:31:181
81640rcu_preempt18880-21idleruntime21:21:151
81640rcu_preempt12036-21ps23:01:210
81640rcu_preempt0-21swapper/123:42:181
81640rcu_preempt0-21swapper/122:41:161
81640rcu_preempt0-21swapper/022:21:440
81630rcu_preempt7860-21ssh22:54:591
81630rcu_preempt27319-21ssh23:28:171
81630rcu_preempt13056-21df_abs21:06:110
81630rcu_preempt0-21swapper/121:46:341
81630rcu_preempt0-21swapper/021:10:580
81620rcu_preempt8194-21munin-run22:55:580
81620rcu_preempt18447-21ssh23:12:161
81620rcu_preempt0-21swapper/123:22:111
81620rcu_preempt0-21swapper/023:37:240
81620rcu_preempt0-21swapper/022:11:240
81610rcu_preempt19953-21ssh22:19:091
81610rcu_preempt0-21swapper/023:51:100
81610rcu_preempt0-21swapper/022:42:480
81600rcu_preempt4843-21ssh22:49:481
81600rcu_preempt3738-21ssh23:44:000
81600rcu_preempt32513-21ssh23:37:001
81600rcu_preempt3-21ksoftirqd/000:17:210
81600rcu_preempt12323-21ssh23:59:251
81600rcu_preempt0-21swapper/122:29:511
81600rcu_preempt0-21swapper/120:21:181
81600rcu_preempt0-21swapper/022:01:370
81600rcu_preempt0-21swapper/021:46:210
81600rcu_preempt0-21swapper/020:08:240
81590rcu_preempt5320-21ssh23:46:201
81590rcu_preempt5185-21ssh21:52:311
81590rcu_preempt30478-21ssh23:34:261
81590rcu_preempt25717-21sh00:24:160
81590rcu_preempt25102-21ssh22:26:540
81590rcu_preempt15290-21diskmemload22:56:060
81590rcu_preempt0-21swapper/122:58:091
81590rcu_preempt0-21swapper/120:26:141
81590rcu_preempt0-21swapper/020:16:210
81590rcu_preempt0-21swapper/020:11:130
81590rcu_preempt0-21swapper/000:44:240
81580rcu_preempt23212-21ssh21:27:550
81580rcu_preempt20255-21ssh21:22:530
81580rcu_preempt15290-21diskmemload23:11:010
81580rcu_preempt0-21swapper/120:56:151
81580rcu_preempt0-21swapper/119:51:191
81580rcu_preempt0-21swapper/023:46:190
81580rcu_preempt0-21swapper/023:20:240
81580rcu_preempt0-21swapper/020:51:190
81580rcu_preempt0-21swapper/020:21:160
81570rcu_preempt30572-21ssh22:36:270
81570rcu_preempt28103-21ssh00:27:370
81570rcu_preempt0-21swapper/123:04:501
81570rcu_preempt0-21swapper/121:11:181
81570rcu_preempt0-21swapper/120:16:221
81570rcu_preempt0-21swapper/120:05:491
81570rcu_preempt0-21swapper/119:38:181
81570rcu_preempt0-21swapper/021:56:570
81570rcu_preempt0-21swapper/019:56:190
81560rcu_preempt3368-21ssh22:46:200
81560rcu_preempt0-21swapper/121:01:151
81560rcu_preempt0-21swapper/120:42:211
81560rcu_preempt0-21swapper/119:26:141
81560rcu_preempt0-21swapper/023:26:360
81560rcu_preempt0-21swapper/022:06:190
81550rcu_preempt17480-21/usr/sbin/munin19:16:120
81550rcu_preempt0-21swapper/120:51:431
81550rcu_preempt0-21swapper/119:56:111
81550rcu_preempt0-21swapper/019:45:580
81550rcu_preempt0-21swapper/000:36:230
81550rcu_preempt0-21swapper/000:36:230
81540rcu_preempt0-21swapper/120:49:331
81540rcu_preempt0-21swapper/120:15:291
81540rcu_preempt0-21swapper/119:46:231
81540rcu_preempt0-21swapper/119:41:481
81540rcu_preempt0-21swapper/019:55:070
81540rcu_preempt0-21swapper/019:39:550
17359995446cyclictest945-21usb-storage20:33:111
81530rcu_preempt0-21swapper/021:05:450
81520rcu_preempt0-21swapper/119:16:221
81520rcu_preempt0-21swapper/020:35:480
81520rcu_preempt0-21swapper/020:02:580
81520rcu_preempt0-21swapper/019:21:220
17359995239cyclictest945-21usb-storage20:38:161
81500rcu_preempt0-21swapper/019:32:260
81490rcu_preempt8095-21df_inode20:46:110
81430rcu_preempt10639-21fw_forwarded_lo20:56:130
81400rcu_preempt3-21ksoftirqd/020:36:190
1735899362cyclictest0-21swapper/020:45:340
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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