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2026-04-05 - 23:54
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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 Sun Apr 05, 2026 12:43:25)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81800rcu_preempt9149-21mailstats10:10:311
81760rcu_preempt14937-21if_can109:20:210
81720rcu_preempt0-21swapper/009:53:390
81710rcu_preempt0-21swapper/011:50:310
81710rcu_preempt0-21swapper/009:17:440
81710rcu_preempt0-21swapper/008:55:160
81700rcu_preempt2525-21grep11:00:260
81700rcu_preempt2130-21sh09:56:590
81700rcu_preempt14483-21ssh11:23:460
81700rcu_preempt0-21swapper/010:15:310
81690rcu_preempt0-21swapper/010:46:250
81690rcu_preempt0-21swapper/007:35:290
81680rcu_preempt0-21swapper/008:05:300
81670rcu_preempt0-21swapper/112:17:081
81670rcu_preempt0-21swapper/011:06:170
81670rcu_preempt0-21swapper/010:55:540
81660rcu_preempt15571-21rm10:24:090
81660rcu_preempt0-21swapper/010:53:050
81650rcu_preempt16286-21df_abs10:25:190
81650rcu_preempt13589-21munin-run07:15:050
81650rcu_preempt11596-21diskmemload12:33:211
81640rcu_preempt30648-21cut08:20:230
81640rcu_preempt2138-21snmpd07:14:171
81640rcu_preempt0-21swapper/012:07:420
81640rcu_preempt0-21swapper/007:25:260
81620rcu_preempt4062-21ssh10:00:290
81620rcu_preempt30341-21ssh10:50:511
81620rcu_preempt23175-21ssh12:42:311
81620rcu_preempt0-21swapper/111:35:261
81620rcu_preempt0-21swapper/012:00:290
81620rcu_preempt0-21swapper/010:32:580
147950620irq/31-eth0-tx-41ktimersoftd/012:36:330
81610rcu_preempt2870-21ssh09:59:401
81610rcu_preempt22660-21ssh10:36:181
81610rcu_preempt20255-21ssh12:36:131
81610rcu_preempt12480-21ssh10:17:101
81610rcu_preempt11290-21ssh11:17:041
81610rcu_preempt0-21swapper/112:20:331
81610rcu_preempt0-21swapper/112:10:061
81610rcu_preempt0-21swapper/111:53:571
81610rcu_preempt0-21swapper/109:50:341
81610rcu_preempt0-21swapper/109:47:041
81610rcu_preempt0-21swapper/109:40:191
81610rcu_preempt0-21swapper/108:36:251
81610rcu_preempt0-21swapper/108:30:311
81610rcu_preempt0-21swapper/009:35:230
81610rcu_preempt0-21swapper/009:25:180
81610rcu_preempt0-21swapper/009:00:290
89850600irq/17-ehci_hcd24577-21ntpq07:55:281
81600rcu_preempt868-21ssh10:57:471
81600rcu_preempt8356-21ssh11:10:490
81600rcu_preempt21987-21ssh09:34:051
81600rcu_preempt20006-21ssh10:31:061
81600rcu_preempt14328-21ssh09:19:551
81600rcu_preempt0-21swapper/112:25:451
81600rcu_preempt0-21swapper/111:24:141
81600rcu_preempt0-21swapper/110:45:591
81600rcu_preempt0-21swapper/110:00:241
81600rcu_preempt0-21swapper/109:10:321
81600rcu_preempt0-21swapper/109:05:241
81600rcu_preempt0-21swapper/108:25:341
81600rcu_preempt0-21swapper/108:15:251
81600rcu_preempt0-21swapper/010:14:060
81600rcu_preempt0-21swapper/010:06:190
81600rcu_preempt0-21swapper/009:41:020
89850590irq/17-ehci_hcd945-21usb-storage07:50:201
89850590irq/17-ehci_hcd171rcuc/107:35:051
81590rcu_preempt8954-21ssh11:13:001
81590rcu_preempt0-21swapper/112:14:191
81590rcu_preempt0-21swapper/112:03:531
81590rcu_preempt0-21swapper/111:45:191
81590rcu_preempt0-21swapper/110:40:241
81590rcu_preempt0-21swapper/110:21:311
81590rcu_preempt0-21swapper/110:06:341
81590rcu_preempt0-21swapper/009:05:270
81590rcu_preempt0-21swapper/007:15:280
89450580irq/17-ehci_hcd111rcuc/007:35:050
81580rcu_preempt8338-21ssh12:14:440
81580rcu_preempt3137-21ssh11:01:031
81580rcu_preempt0-21swapper/111:40:321
81580rcu_preempt0-21swapper/111:30:251
81580rcu_preempt0-21swapper/111:07:541
81580rcu_preempt0-21swapper/109:36:061
81580rcu_preempt0-21swapper/107:47:441
81580rcu_preempt0-21swapper/012:42:320
81580rcu_preempt0-21swapper/011:41:390
81570rcu_preempt2138-21snmpd07:39:221
81570rcu_preempt16911-21ssh09:24:191
81570rcu_preempt16899-21sshd11:28:240
81570rcu_preempt11596-21diskmemload11:45:400
81570rcu_preempt11325-21ssh11:17:110
81570rcu_preempt10018-21ssh12:16:270
81570rcu_preempt0-21swapper/109:28:431
81570rcu_preempt0-21swapper/109:00:301
81570rcu_preempt0-21swapper/107:22:471
81570rcu_preempt0-21swapper/012:34:360
81570rcu_preempt0-21swapper/012:28:250
81570rcu_preempt0-21swapper/011:34:390
81570rcu_preempt0-21swapper/010:42:330
81570rcu_preempt0-21swapper/009:34:470
81570rcu_preempt0-21swapper/009:13:240
81560rcu_preempt5690-21fw_conntrack08:50:221
81560rcu_preempt32203-21ssh11:57:010
81560rcu_preempt17364-21ssh10:26:101
81560rcu_preempt0-21swapper/111:55:481
81560rcu_preempt0-21swapper/111:25:111
81560rcu_preempt0-21swapper/108:45:131
81560rcu_preempt0-21swapper/108:10:211
81560rcu_preempt0-21swapper/010:38:450
81560rcu_preempt0-21swapper/007:40:180
81560rcu_preempt0-21swapper/007:20:190
81550rcu_preempt6403-21grep08:50:310
81550rcu_preempt30296-21df08:20:181
81550rcu_preempt22068-21ssh11:38:090
81550rcu_preempt0-21swapper/108:58:071
81550rcu_preempt0-21swapper/108:43:441
81550rcu_preempt0-21swapper/107:40:521
81550rcu_preempt0-21swapper/107:25:291
81550rcu_preempt0-21swapper/008:40:250
81550rcu_preempt0-21swapper/008:30:270
81540rcu_preempt12309-21ssh12:20:330
81540rcu_preempt0-21swapper/108:00:301
81530rcu_preempt0-21swapper/009:48:100
81530rcu_preempt0-21swapper/008:45:090
81530rcu_preempt0-21swapper/008:00:540
81530rcu_preempt0-21swapper/007:50:220
81530rcu_preempt0-21swapper/007:46:000
81520rcu_preempt0-21swapper/008:10:330
13622995243cyclictest945-21usb-storage08:08:141
13622995148cyclictest945-21usb-storage07:15:311
81460rcu_preempt0-21swapper/008:25:340
79950410irq/19-0000:00:30008-21turbostat.cron08:20:000
147950410irq/31-eth0-tx-24502-21strings07:55:260
1599370migration/01977-21/usr/sbin/munin08:35:220
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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