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2026-07-13 - 23:17
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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 Mon Jul 13, 2026 12:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81760rcu_preempt19964-21apt-get10:31:301
81740rcu_preempt25858-21df_abs09:46:341
81740rcu_preempt0-21swapper/011:45:090
89950730irq/17-ehci_hcd171rcuc/109:27:141
81720rcu_preempt8967-21ntp_offset11:06:411
81720rcu_preempt31690-21sh10:51:211
81720rcu_preempt24809-21sh09:44:281
81720rcu_preempt0-21swapper/107:51:371
81720rcu_preempt0-21swapper/009:56:350
81710rcu_preempt25606-21/usr/sbin/munin09:46:360
81710rcu_preempt16437-21sh10:25:260
81710rcu_preempt0-21swapper/012:02:290
81710rcu_preempt0-21swapper/011:51:130
81710rcu_preempt0-21swapper/010:32:400
81700rcu_preempt4964-21/usr/sbin/munin10:06:180
81700rcu_preempt21398-21irqstats08:01:380
81700rcu_preempt0-21swapper/112:08:471
81700rcu_preempt0-21swapper/111:55:351
81700rcu_preempt0-21swapper/011:37:460
81700rcu_preempt0-21swapper/011:28:120
81700rcu_preempt0-21swapper/010:12:570
81690rcu_preempt7629-21ssh09:16:311
81690rcu_preempt17417-21fw_forwarded_lo07:46:340
81690rcu_preempt0-21swapper/112:45:311
81690rcu_preempt0-21swapper/111:59:181
81690rcu_preempt0-21swapper/109:51:401
81680rcu_preempt24048-21sh11:31:540
81680rcu_preempt0-21swapper/112:30:351
81680rcu_preempt0-21swapper/112:20:051
81680rcu_preempt0-21swapper/111:48:531
81680rcu_preempt0-21swapper/111:21:221
81680rcu_preempt0-21swapper/111:17:331
81680rcu_preempt0-21swapper/109:31:431
81680rcu_preempt0-21swapper/108:35:261
89950670irq/17-ehci_hcd945-21usb-storage12:39:061
81670rcu_preempt25785-21munin-node10:41:281
81670rcu_preempt0-21swapper/108:26:431
81670rcu_preempt0-21swapper/107:11:361
81670rcu_preempt0-21swapper/012:29:470
81670rcu_preempt0-21swapper/010:37:230
81670rcu_preempt0-21swapper/010:29:010
81660rcu_preempt7408-21diskmemload10:45:570
81650rcu_preempt9954-21if_err_wlan007:16:351
81650rcu_preempt23896-21sort10:36:441
81650rcu_preempt22294-21wc08:06:321
81650rcu_preempt0-21swapper/011:25:480
81640rcu_preempt31608-21latency_hist10:51:181
81640rcu_preempt19938-21ssh11:26:301
81640rcu_preempt14346-21wc07:31:451
81640rcu_preempt0-21swapper/112:31:351
81640rcu_preempt0-21swapper/012:16:450
81640rcu_preempt0-21swapper/011:51:520
81640rcu_preempt0-21swapper/008:35:070
81630rcu_preempt6882-21ssh11:03:131
81630rcu_preempt2192-21snmpd09:15:300
81630rcu_preempt0-21swapper/112:01:381
81630rcu_preempt0-21swapper/009:35:140
81630rcu_preempt0-21swapper/009:24:450
81630rcu_preempt0-21swapper/008:11:370
81620rcu_preempt7408-21diskmemload10:59:321
81620rcu_preempt13719-21ssh10:21:070
81620rcu_preempt0-21swapper/112:16:071
81620rcu_preempt0-21swapper/110:07:151
81610rcu_preempt0-21swapper/111:31:331
81610rcu_preempt0-21swapper/110:14:181
81610rcu_preempt0-21swapper/110:01:211
81610rcu_preempt0-21swapper/110:00:081
81610rcu_preempt0-21swapper/108:37:571
81610rcu_preempt0-21swapper/012:41:120
81610rcu_preempt0-21swapper/010:46:420
81610rcu_preempt0-21swapper/009:51:180
81600rcu_preempt3-21ksoftirqd/012:12:350
81600rcu_preempt15850-21ssh10:23:471
81600rcu_preempt11545-21ntpq07:21:421
81600rcu_preempt0-21swapper/108:11:311
81600rcu_preempt0-21swapper/107:56:361
81600rcu_preempt0-21swapper/012:06:280
81600rcu_preempt0-21swapper/007:41:420
81590rcu_preempt7408-21diskmemload12:32:370
81590rcu_preempt4810-21ssh11:00:480
81590rcu_preempt18202-21ssh10:26:571
81590rcu_preempt16138-21fw_conntrack07:41:331
81590rcu_preempt0-21swapper/112:21:401
81590rcu_preempt0-21swapper/111:45:491
81590rcu_preempt0-21swapper/111:36:371
81590rcu_preempt0-21swapper/111:11:371
81590rcu_preempt0-21swapper/109:23:591
81590rcu_preempt0-21swapper/012:22:270
81590rcu_preempt0-21swapper/011:09:390
81590rcu_preempt0-21swapper/010:53:280
81590rcu_preempt0-21swapper/010:09:110
81590rcu_preempt0-21swapper/009:39:070
81590rcu_preempt0-21swapper/007:31:330
81580rcu_preempt5238-21ssh11:56:240
81580rcu_preempt14081-21fw_forwarded_lo09:26:350
81580rcu_preempt0-21swapper/108:51:391
81580rcu_preempt0-21swapper/108:16:371
81580rcu_preempt0-21swapper/107:48:161
81580rcu_preempt0-21swapper/107:26:421
81580rcu_preempt0-21swapper/012:41:460
81580rcu_preempt0-21swapper/011:17:300
81580rcu_preempt0-21swapper/008:51:320
89950570irq/17-ehci_hcd945-21usb-storage07:39:301
81570rcu_preempt21492-21ssh09:38:361
81570rcu_preempt0-21swapper/110:17:261
81570rcu_preempt0-21swapper/108:56:511
81570rcu_preempt0-21swapper/108:47:081
81570rcu_preempt0-21swapper/108:41:561
81570rcu_preempt0-21swapper/008:16:400
81560rcu_preempt0-21swapper/109:04:551
81560rcu_preempt0-21swapper/108:25:101
81560rcu_preempt0-21swapper/009:44:530
81560rcu_preempt0-21swapper/009:17:390
146650560irq/31-eth0-tx-8297-21/usr/sbin/munin07:11:440
81550rcu_preempt0-21swapper/109:12:291
81550rcu_preempt0-21swapper/011:05:300
81550rcu_preempt0-21swapper/009:06:320
81550rcu_preempt0-21swapper/008:21:210
81550rcu_preempt0-21swapper/008:06:430
81550rcu_preempt0-21swapper/007:53:000
81550rcu_preempt0-21swapper/007:26:360
81540rcu_preempt12497-21ssh11:12:440
81540rcu_preempt11947-21munin-run07:26:180
81540rcu_preempt0-21swapper/007:59:580
81530rcu_preempt0-21swapper/008:26:390
81520rcu_preempt0-21swapper/009:05:430
81510rcu_preempt0-21swapper/008:48:050
81510rcu_preempt0-21swapper/007:39:020
9434995047cyclictest945-21usb-storage08:01:391
81500rcu_preempt31739-21ntp_states08:41:400
81480rcu_preempt6063-21expr09:06:451
81440rcu_preempt30659-21sensors_temp08:36:440
81430rcu_preempt10288-21ntp_states07:16:400
79950370irq/19-0000:00:2347-21latency_hist08:56:180
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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