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2026-05-23 - 18:22
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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 all highest latencies:
System rackcslot3.osadl.org (updated Sat May 23, 2026 12:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81760rcu_preempt0-21swapper/107:07:221
81750rcu_preempt20936-21diskmemload09:55:321
81740rcu_preempt655-21ls09:32:211
81740rcu_preempt28174-21cron12:22:021
81720rcu_preempt24351-21diskstats09:17:170
81710rcu_preempt20936-21diskmemload10:30:500
81700rcu_preempt31094-21apt-get11:27:121
81700rcu_preempt26244-21users10:17:301
81700rcu_preempt2192-21snmpd08:20:541
81700rcu_preempt14726-21apt-get10:57:131
81690rcu_preempt1118-21munin-run11:32:020
81690rcu_preempt0-21swapper/111:58:441
81690rcu_preempt0-21swapper/111:55:531
81690rcu_preempt0-21swapper/109:15:071
81690rcu_preempt0-21swapper/010:22:440
81680rcu_preempt4844-21awk12:37:241
81680rcu_preempt32280-21sh10:29:071
81680rcu_preempt14097-21sh10:55:281
81680rcu_preempt0-21swapper/012:04:510
81670rcu_preempt6604-21munin-run11:42:010
81670rcu_preempt32318-21sshd07:47:201
81670rcu_preempt29457-21ssh10:23:411
81670rcu_preempt22855-21munin-run12:12:021
81670rcu_preempt0-21swapper/112:28:301
81670rcu_preempt0-21swapper/108:47:251
81670rcu_preempt0-21swapper/011:12:380
81670rcu_preempt0-21swapper/010:55:220
81660rcu_preempt5731-21munin-run08:12:011
81660rcu_preempt0-21swapper/112:23:441
81660rcu_preempt0-21swapper/111:19:531
81660rcu_preempt0-21swapper/012:22:320
81660rcu_preempt0-21swapper/011:55:420
81650rcu_preempt890-21ssh12:31:080
81650rcu_preempt0-21swapper/011:57:500
81640rcu_preempt15215-21rm09:57:310
81640rcu_preempt0-21swapper/111:40:541
81640rcu_preempt0-21swapper/110:37:191
81640rcu_preempt0-21swapper/011:22:190
81630rcu_preempt11153-21ssh11:49:121
81630rcu_preempt0-21swapper/111:42:021
81630rcu_preempt0-21swapper/009:47:130
81620rcu_preempt4312-21ssh09:38:071
81620rcu_preempt3590-21ssh11:36:131
81620rcu_preempt29263-21munin-run07:37:000
81620rcu_preempt22110-21ssh10:11:511
81620rcu_preempt0-21swapper/112:02:411
81620rcu_preempt0-21swapper/111:14:411
81620rcu_preempt0-21swapper/109:42:211
81620rcu_preempt0-21swapper/010:38:350
81610rcu_preempt8433-21ssh10:45:031
81610rcu_preempt20936-21diskmemload10:48:130
81610rcu_preempt20936-21diskmemload10:09:530
81610rcu_preempt0-21swapper/111:04:221
81610rcu_preempt0-21swapper/110:32:271
81610rcu_preempt0-21swapper/109:23:051
81610rcu_preempt0-21swapper/108:52:251
81610rcu_preempt0-21swapper/107:22:221
81610rcu_preempt0-21swapper/008:12:130
81610rcu_preempt0-21swapper/007:12:150
81610rcu_preempt0-21swapper/007:07:540
146550610irq/30-eth0-tx-0-21swapper/009:35:200
81600rcu_preempt6439-21ssh09:42:240
81600rcu_preempt31446-21ps07:42:250
81600rcu_preempt24240-21df09:17:151
81600rcu_preempt20936-21diskmemload11:34:150
81600rcu_preempt20936-21diskmemload10:20:490
81600rcu_preempt17449-21ssh11:02:130
81600rcu_preempt16136-21ssh10:00:241
81600rcu_preempt1358-21ssh12:32:081
81600rcu_preempt0-21swapper/111:25:021
81600rcu_preempt0-21swapper/110:48:341
81600rcu_preempt0-21swapper/109:51:171
81600rcu_preempt0-21swapper/109:28:141
81600rcu_preempt0-21swapper/009:22:280
81600rcu_preempt0-21swapper/008:42:240
81590rcu_preempt4183-21ssh12:37:150
81590rcu_preempt27098-21df_abs07:27:160
81590rcu_preempt0-21swapper/110:02:491
81590rcu_preempt0-21swapper/108:32:181
81590rcu_preempt0-21swapper/107:32:071
81590rcu_preempt0-21swapper/012:12:110
81590rcu_preempt0-21swapper/011:46:180
81590rcu_preempt0-21swapper/010:43:300
81580rcu_preempt3550-21ssh10:36:470
81580rcu_preempt21688-21ssh11:08:281
81580rcu_preempt0-21swapper/110:13:471
81580rcu_preempt0-21swapper/109:00:081
81580rcu_preempt0-21swapper/108:37:241
81580rcu_preempt0-21swapper/107:56:081
81580rcu_preempt0-21swapper/012:18:030
81580rcu_preempt0-21swapper/010:02:210
81580rcu_preempt0-21swapper/008:32:150
81580rcu_preempt0-21swapper/008:27:270
81570rcu_preempt25053-21ssh12:15:171
81570rcu_preempt20936-21diskmemload10:14:380
81570rcu_preempt0-21swapper/109:02:221
81570rcu_preempt0-21swapper/108:42:161
81570rcu_preempt0-21swapper/108:31:101
81570rcu_preempt0-21swapper/107:12:451
81570rcu_preempt0-21swapper/011:01:050
81570rcu_preempt0-21swapper/009:29:220
81570rcu_preempt0-21swapper/009:02:260
81570rcu_preempt0-21swapper/008:02:170
81570rcu_preempt0-21swapper/007:52:150
81560rcu_preempt23567-21ssh09:16:090
81560rcu_preempt12639-21ssh09:52:500
81560rcu_preempt0-21swapper/109:09:431
81560rcu_preempt0-21swapper/012:34:050
81560rcu_preempt0-21swapper/012:10:120
81560rcu_preempt0-21swapper/009:10:480
81560rcu_preempt0-21swapper/008:57:290
81560rcu_preempt0-21swapper/007:17:220
81550rcu_preempt6972-21sshd08:16:081
81550rcu_preempt21802-21ssh11:08:520
81550rcu_preempt0-21swapper/107:37:451
81550rcu_preempt0-21swapper/011:20:370
81540rcu_preempt31154-21irqstats07:42:211
81540rcu_preempt2555-21irqstats07:57:211
81540rcu_preempt0-21swapper/108:22:071
81540rcu_preempt0-21swapper/108:22:071
81540rcu_preempt0-21swapper/107:19:081
81540rcu_preempt0-21swapper/007:40:590
81540rcu_preempt0-21swapper/007:22:250
146650540irq/31-eth0-tx-41ktimersoftd/009:37:330
81530rcu_preempt0-21swapper/011:47:260
81520rcu_preempt27454-21memory07:27:221
81520rcu_preempt0-21swapper/008:53:050
81520rcu_preempt0-21swapper/008:22:390
81520rcu_preempt0-21swapper/008:22:390
81520rcu_preempt0-21swapper/008:20:520
81510rcu_preempt0-21swapper/008:47:290
81510rcu_preempt0-21swapper/007:58:150
81500rcu_preempt0-21swapper/008:08:370
89950490irq/17-ehci_hcd945-21usb-storage08:39:530
81480rcu_preempt31932-21dpkg07:47:120
22957994845cyclictest945-21usb-storage08:02:271
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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