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2025-11-17 - 18:20
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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 376 highest latencies:
System rackcslot3.osadl.org (updated Mon Nov 17, 2025 12:43:25)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
90050760irq/17-ehci_hcd946-21usb-storage07:05:471
81760rcu_preempt3070-21cpu11:30:111
81760rcu_preempt19013-21diskmemload10:45:201
81760rcu_preempt19013-21diskmemload10:45:201
81750rcu_preempt19203-21diskstats10:05:141
81740rcu_preempt10255-21latency_hist08:34:560
81700rcu_preempt11819-21sh10:48:540
81700rcu_preempt11819-21sh10:48:540
81690rcu_preempt28564-21ssh11:17:471
81690rcu_preempt0-21swapper/012:14:130
81690rcu_preempt0-21swapper/010:50:200
81680rcu_preempt0-21swapper/009:22:320
81680rcu_preempt0-21swapper/009:22:320
89650670irq/17-ehci_hcd7244-21ssh09:44:461
81670rcu_preempt0-21swapper/011:03:090
81670rcu_preempt0-21swapper/009:58:160
81660rcu_preempt0-21swapper/010:02:460
81650rcu_preempt6903-21ssh10:40:120
81650rcu_preempt0-21swapper/010:18:510
81630rcu_preempt32607-21ssh11:25:110
81630rcu_preempt0-21swapper/110:15:501
81630rcu_preempt0-21swapper/007:16:130
81620rcu_preempt0-21swapper/009:27:540
81610rcu_preempt0-21swapper/007:10:110
81600rcu_preempt0-21swapper/012:21:030
81600rcu_preempt0-21swapper/011:05:140
81600rcu_preempt0-21swapper/009:15:210
81600rcu_preempt0-21swapper/009:10:140
81600rcu_preempt0-21swapper/008:22:580
81590rcu_preempt0-21swapper/110:42:431
81590rcu_preempt0-21swapper/109:22:171
81590rcu_preempt0-21swapper/109:22:171
81590rcu_preempt0-21swapper/109:11:331
81590rcu_preempt0-21swapper/012:04:320
81590rcu_preempt0-21swapper/011:44:130
81590rcu_preempt0-21swapper/010:55:120
81590rcu_preempt0-21swapper/007:06:450
81580rcu_preempt9484-21ssh09:47:581
81580rcu_preempt31149-21ssh11:21:561
81580rcu_preempt17456-21ssh10:58:291
81580rcu_preempt0-21swapper/112:14:291
81580rcu_preempt0-21swapper/112:00:541
81580rcu_preempt0-21swapper/111:55:221
81580rcu_preempt0-21swapper/111:40:121
81580rcu_preempt0-21swapper/111:10:181
81580rcu_preempt0-21swapper/111:09:331
81580rcu_preempt0-21swapper/110:25:141
81580rcu_preempt0-21swapper/110:23:101
81580rcu_preempt0-21swapper/110:02:161
81580rcu_preempt0-21swapper/109:53:371
81580rcu_preempt0-21swapper/109:17:231
81580rcu_preempt0-21swapper/108:00:121
81580rcu_preempt0-21swapper/107:55:171
81580rcu_preempt0-21swapper/107:40:241
81580rcu_preempt0-21swapper/107:20:221
81580rcu_preempt0-21swapper/012:35:140
81580rcu_preempt0-21swapper/012:31:380
81580rcu_preempt0-21swapper/008:25:220
81570rcu_preempt885-21ssh12:25:100
81570rcu_preempt3273-21ssh10:33:481
81570rcu_preempt29749-21ssh09:26:331
81570rcu_preempt17670-21sendmail_mailst11:55:200
81570rcu_preempt1641-21ssh11:26:401
81570rcu_preempt13269-21ssh09:55:021
81570rcu_preempt0-21swapper/112:21:221
81570rcu_preempt0-21swapper/112:15:011
81570rcu_preempt0-21swapper/112:09:031
81570rcu_preempt0-21swapper/111:52:301
81570rcu_preempt0-21swapper/111:35:571
81570rcu_preempt0-21swapper/111:04:381
81570rcu_preempt0-21swapper/110:50:481
81570rcu_preempt0-21swapper/109:07:541
81570rcu_preempt0-21swapper/108:13:271
81570rcu_preempt0-21swapper/107:12:021
81570rcu_preempt0-21swapper/011:32:130
81570rcu_preempt0-21swapper/011:24:450
81570rcu_preempt0-21swapper/011:12:370
81570rcu_preempt0-21swapper/010:10:270
81570rcu_preempt0-21swapper/009:44:420
81570rcu_preempt0-21swapper/009:30:420
81560rcu_preempt4038-21ssh09:38:401
81560rcu_preempt30088-21ssh12:19:280
81560rcu_preempt23195-21ssh10:11:011
81560rcu_preempt0-21swapper/112:38:101
81560rcu_preempt0-21swapper/112:31:261
81560rcu_preempt0-21swapper/111:45:341
81560rcu_preempt0-21swapper/110:38:041
81560rcu_preempt0-21swapper/109:30:371
81560rcu_preempt0-21swapper/108:52:071
81560rcu_preempt0-21swapper/107:45:221
81560rcu_preempt0-21swapper/107:45:221
81560rcu_preempt0-21swapper/011:47:220
81560rcu_preempt0-21swapper/009:51:590
81550rcu_preempt5922-21cpuspeed_turbos11:35:100
81550rcu_preempt32673-21ssh10:28:350
81550rcu_preempt29097-21ssh10:21:210
81550rcu_preempt2204-21ssh12:25:581
81550rcu_preempt17757-21munin-run09:04:550
81550rcu_preempt0-21swapper/107:50:221
81550rcu_preempt0-21swapper/107:37:191
81550rcu_preempt0-21swapper/012:05:040
81550rcu_preempt0-21swapper/011:51:250
81550rcu_preempt0-21swapper/010:36:400
81550rcu_preempt0-21swapper/010:34:460
81550rcu_preempt0-21swapper/009:45:220
81550rcu_preempt0-21swapper/009:39:220
81550rcu_preempt0-21swapper/008:55:140
81550rcu_preempt0-21swapper/008:50:120
81550rcu_preempt0-21swapper/008:15:100
81550rcu_preempt0-21swapper/007:25:240
81540rcu_preempt0-21swapper/108:29:261
81540rcu_preempt0-21swapper/108:19:321
81540rcu_preempt0-21swapper/107:16:221
81540rcu_preempt0-21swapper/011:16:100
81540rcu_preempt0-21swapper/009:07:390
81540rcu_preempt0-21swapper/008:47:330
81540rcu_preempt0-21swapper/008:05:120
151450540irq/28-eth0-rx-41ktimersoftd/007:57:530
81530rcu_preempt28601-21idleruntime-cro07:39:560
81530rcu_preempt0-21swapper/108:33:051
81530rcu_preempt0-21swapper/107:26:321
81530rcu_preempt0-21swapper/010:08:010
81530rcu_preempt0-21swapper/008:43:210
81530rcu_preempt0-21swapper/008:10:440
81530rcu_preempt0-21swapper/007:52:510
81510rcu_preempt0-21swapper/108:57:221
21041995148cyclictest946-21usb-storage08:40:091
21041995145cyclictest946-21usb-storage09:00:111
151450510irq/28-eth0-rx-3537-21fgrep08:05:211
81500rcu_preempt0-21swapper/108:48:221
21040995048cyclictest946-21usb-storage07:40:190
21040995048cyclictest946-21usb-storage07:30:110
21041994947cyclictest946-21usb-storage07:30:071
81480rcu_preempt0-21swapper/007:45:220
81480rcu_preempt0-21swapper/007:45:220
21041994845cyclictest946-21usb-storage08:20:191
21040994441cyclictest946-21usb-storage08:34:310
21040994441cyclictest946-21usb-storage07:23:090
90050370irq/17-ehci_hcd0-21swapper/008:00:110
151450340irq/28-eth0-rx-7596-21kworker/1:008:35:151
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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