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2026-05-23 - 10:09
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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 May 23, 2026 00:43:25)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
89950820irq/17-ehci_hcd14175-21ntp_states22:12:211
81750rcu_preempt28858-21lsb_release21:40:481
81750rcu_preempt11546-21ps21:12:221
89950740irq/17-ehci_hcd945-21usb-storage22:40:081
81740rcu_preempt17260-21strings23:17:191
81730rcu_preempt10455-21diskmemload00:24:020
81720rcu_preempt18091-21sh21:23:380
81720rcu_preempt10455-21diskmemload23:59:210
81720rcu_preempt0-21swapper/120:37:101
81720rcu_preempt0-21swapper/119:37:091
81710rcu_preempt3159-21ssh21:52:190
81710rcu_preempt15090-21ssh23:12:270
81710rcu_preempt0-21swapper/121:30:161
81710rcu_preempt0-21swapper/023:22:130
81710rcu_preempt0-21swapper/022:22:120
81710rcu_preempt0-21swapper/020:57:150
81700rcu_preempt3267-21apt-get23:52:121
81700rcu_preempt0-21swapper/100:07:171
81700rcu_preempt0-21swapper/023:17:110
81700rcu_preempt0-21swapper/019:07:100
81690rcu_preempt0-21swapper/122:05:371
81690rcu_preempt0-21swapper/021:36:050
81680rcu_preempt26967-21sh23:35:530
81680rcu_preempt10455-21diskmemload21:51:561
81680rcu_preempt0-21swapper/023:39:530
81670rcu_preempt0-21swapper/123:42:141
81670rcu_preempt0-21swapper/121:22:201
81670rcu_preempt0-21swapper/121:02:121
81670rcu_preempt0-21swapper/119:10:101
81670rcu_preempt0-21swapper/021:41:380
81660rcu_preempt477-21ssh23:47:100
81660rcu_preempt30100-21cpuspeed_turbos22:42:121
81660rcu_preempt2750-21ssh23:51:001
81660rcu_preempt0-21swapper/122:07:551
81660rcu_preempt0-21swapper/000:39:230
81660rcu_preempt0-21swapper/000:14:470
81650rcu_preempt0-21swapper/121:59:311
81650rcu_preempt0-21swapper/100:40:281
81650rcu_preempt0-21swapper/022:44:520
81640rcu_preempt27936-21if_eth023:37:151
81640rcu_preempt0-21swapper/123:35:241
81640rcu_preempt0-21swapper/122:23:461
81640rcu_preempt0-21swapper/121:46:031
81640rcu_preempt0-21swapper/121:35:031
81640rcu_preempt0-21swapper/119:57:191
81640rcu_preempt0-21swapper/021:47:160
81640rcu_preempt0-21swapper/020:52:100
81640rcu_preempt0-21swapper/019:57:200
81630rcu_preempt4131-21ssh21:53:451
81630rcu_preempt24357-21munin-run00:32:000
81630rcu_preempt15802-21ssh23:15:021
81630rcu_preempt0-21swapper/120:43:491
81630rcu_preempt0-21swapper/119:53:351
81630rcu_preempt0-21swapper/100:25:401
81630rcu_preempt0-21swapper/022:52:170
81630rcu_preempt0-21swapper/022:51:590
81630rcu_preempt0-21swapper/019:42:150
81620rcu_preempt26326-21ssh22:34:421
81620rcu_preempt26306-21ssh00:34:341
81620rcu_preempt18288-21ssh22:20:321
81620rcu_preempt13599-21ssh23:11:321
81620rcu_preempt0-21swapper/123:57:281
81620rcu_preempt0-21swapper/123:27:141
81620rcu_preempt0-21swapper/100:20:031
81620rcu_preempt0-21swapper/100:06:501
81620rcu_preempt0-21swapper/021:57:160
81620rcu_preempt0-21swapper/021:15:340
81620rcu_preempt0-21swapper/021:02:260
81620rcu_preempt0-21swapper/019:52:250
81620rcu_preempt0-21swapper/019:12:170
89950610irq/17-ehci_hcd0-21swapper/120:05:441
81610rcu_preempt21691-21ssh23:26:151
81610rcu_preempt10726-21ssh23:05:451
81610rcu_preempt0-21swapper/121:17:201
81610rcu_preempt0-21swapper/022:57:510
81610rcu_preempt0-21swapper/000:07:000
81600rcu_preempt7396-21ssh22:58:531
81600rcu_preempt22478-21ssh22:27:191
81600rcu_preempt15403-21ssh00:15:001
81600rcu_preempt14113-21diskstats19:17:131
81600rcu_preempt0-21swapper/120:27:191
81600rcu_preempt0-21swapper/021:27:130
81600rcu_preempt0-21swapper/000:32:450
81590rcu_preempt9330-21/usr/sbin/munin21:07:200
81590rcu_preempt4818-21ssh22:54:151
81590rcu_preempt32021-21latency_hist21:46:590
81590rcu_preempt1887-21ssh22:48:451
81590rcu_preempt11767-21grep22:07:240
81590rcu_preempt10054-21ssh00:03:120
81590rcu_preempt0-21swapper/100:27:171
81590rcu_preempt0-21swapper/022:02:150
81590rcu_preempt0-21swapper/020:47:150
81590rcu_preempt0-21swapper/020:42:210
81590rcu_preempt0-21swapper/019:47:150
81590rcu_preempt0-21swapper/019:22:100
81580rcu_preempt21791-21ssh22:27:090
81580rcu_preempt0-21swapper/119:32:111
81580rcu_preempt0-21swapper/019:17:230
81570rcu_preempt0-21swapper/121:09:021
81570rcu_preempt0-21swapper/120:32:211
81570rcu_preempt0-21swapper/023:04:410
81570rcu_preempt0-21swapper/022:14:000
81570rcu_preempt0-21swapper/020:37:200
81570rcu_preempt0-21swapper/019:27:210
81560rcu_preempt32267-21ssh23:45:230
81560rcu_preempt3-21ksoftirqd/019:32:240
81560rcu_preempt29069-21apt-get20:17:090
81560rcu_preempt0-21swapper/120:47:181
81560rcu_preempt0-21swapper/120:22:161
81560rcu_preempt0-21swapper/119:29:121
81560rcu_preempt0-21swapper/119:12:181
81560rcu_preempt0-21swapper/022:20:170
81550rcu_preempt5811-21fw_forwarded_lo20:52:321
81550rcu_preempt21695-21df_abs19:47:111
81550rcu_preempt0-21swapper/120:09:181
81550rcu_preempt0-21swapper/023:28:050
81550rcu_preempt0-21swapper/023:07:520
81550rcu_preempt0-21swapper/022:40:060
81550rcu_preempt0-21swapper/020:31:330
81550rcu_preempt0-21swapper/019:37:120
146250550irq/28-eth0-rx-41ktimersoftd/022:33:470
81540rcu_preempt0-21swapper/021:20:370
81540rcu_preempt0-21swapper/020:32:200
81540rcu_preempt0-21swapper/000:17:050
81530rcu_preempt28295-21irqstats20:12:171
81530rcu_preempt15921-21ntp_states19:22:211
81530rcu_preempt0-21swapper/119:42:231
81520rcu_preempt0-21swapper/020:14:240
12472995248cyclictest945-21usb-storage23:55:360
81510rcu_preempt29319-21diskstats20:17:131
81510rcu_preempt0-21swapper/020:04:050
12472995146cyclictest945-21usb-storage20:22:150
81500rcu_preempt7050-21diskstats20:57:121
81330rcu_preempt26875-21awk20:07:160
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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