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2026-03-27 - 23:22
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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 the highest latencies:
System rackcslot3.osadl.org (updated Fri Mar 27, 2026 12:43:25)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81790rcu_preempt31015-21memory11:00:020
81780rcu_preempt8288-21apt-get07:09:511
81760rcu_preempt0-21swapper/111:04:581
81750rcu_preempt0-21swapper/010:28:490
81740rcu_preempt0-21swapper/112:16:371
81730rcu_preempt18930-21kernelversion09:35:040
81730rcu_preempt10915-21ls12:25:070
81730rcu_preempt0-21swapper/107:48:261
89850720irq/17-ehci_hcd0-21swapper/111:45:441
81720rcu_preempt6043-21ssh11:14:561
81720rcu_preempt32129-21sh08:44:410
81720rcu_preempt14950-21/usr/sbin/munin12:34:561
81710rcu_preempt8802-21ssh09:15:180
81710rcu_preempt7339-21diskmemload11:19:520
81710rcu_preempt5595-21sh10:10:311
81710rcu_preempt5367-21diskmemload11:13:571
81710rcu_preempt23137-21ssh10:44:591
81710rcu_preempt23098-21ssh11:47:140
81710rcu_preempt0-21swapper/111:34:521
81710rcu_preempt0-21swapper/008:00:050
81700rcu_preempt7339-21diskmemload09:46:200
81700rcu_preempt5559-1kworker/1:0H10:52:381
81700rcu_preempt31470-21ssh09:59:420
81700rcu_preempt25178-21irqstats08:15:010
81700rcu_preempt14828-21sh11:30:291
81700rcu_preempt0-21swapper/112:08:471
81700rcu_preempt0-21swapper/111:01:421
81700rcu_preempt0-21swapper/110:55:371
81700rcu_preempt0-21swapper/109:04:191
81700rcu_preempt0-21swapper/108:49:511
81700rcu_preempt0-21swapper/108:24:541
81700rcu_preempt0-21swapper/107:34:521
81700rcu_preempt0-21swapper/010:19:050
81690rcu_preempt7339-21diskmemload11:31:070
81690rcu_preempt548-21ntp_states08:45:030
81690rcu_preempt32563-21ntp_states12:05:050
81690rcu_preempt30231-21irqstats08:35:010
81690rcu_preempt24851-21sh09:45:151
81690rcu_preempt19-21ksoftirqd/111:54:531
81690rcu_preempt0-21swapper/109:31:401
81690rcu_preempt0-21swapper/109:24:591
81690rcu_preempt0-21swapper/108:15:011
81690rcu_preempt0-21swapper/107:15:001
81690rcu_preempt0-21swapper/007:10:050
81680rcu_preempt7339-21diskmemload11:38:440
81680rcu_preempt7339-21diskmemload09:43:150
81680rcu_preempt26857-21diskstats11:54:570
81680rcu_preempt0-21swapper/112:40:141
81680rcu_preempt0-21swapper/112:23:441
81680rcu_preempt0-21swapper/112:10:311
81680rcu_preempt0-21swapper/109:54:421
81680rcu_preempt0-21swapper/109:39:431
81680rcu_preempt0-21swapper/109:21:061
81680rcu_preempt0-21swapper/108:39:591
81670rcu_preempt7339-21diskmemload11:40:240
81670rcu_preempt13379-21df09:24:530
81670rcu_preempt0-21swapper/111:50:321
81670rcu_preempt0-21swapper/111:25:371
81670rcu_preempt0-21swapper/110:21:351
81670rcu_preempt0-21swapper/110:06:061
81670rcu_preempt0-21swapper/110:02:371
81670rcu_preempt0-21swapper/109:50:231
81660rcu_preempt31582-21idleruntime-cro12:04:421
81660rcu_preempt0-21swapper/110:33:481
81660rcu_preempt0-21swapper/109:17:491
89850650irq/17-ehci_hcd0-21swapper/007:53:020
81650rcu_preempt4517-21df_abs10:09:550
81650rcu_preempt19-21ksoftirqd/109:34:541
81650rcu_preempt0-21swapper/108:12:541
81640rcu_preempt17465-21if_can107:44:590
81640rcu_preempt0-21swapper/110:17:011
89850630irq/17-ehci_hcd0-21swapper/011:06:180
81630rcu_preempt4993-21if_eth012:14:590
81630rcu_preempt0-21swapper/111:21:101
81630rcu_preempt0-21swapper/110:37:281
81630rcu_preempt0-21swapper/108:44:591
81620rcu_preempt0-21swapper/112:31:041
81620rcu_preempt0-21swapper/112:25:251
81620rcu_preempt0-21swapper/107:20:001
81610rcu_preempt20417-21ssh11:42:041
81610rcu_preempt0-21swapper/110:40:311
81610rcu_preempt0-21swapper/107:55:051
81610rcu_preempt0-21swapper/107:39:541
81610rcu_preempt0-21swapper/107:30:071
89050600irq/17-ehci_hcd945-21usb-storage10:33:280
81600rcu_preempt0-21swapper/110:28:001
81590rcu_preempt29199-21ssh10:56:100
81590rcu_preempt0-21swapper/109:12:441
81590rcu_preempt0-21swapper/108:35:021
81580rcu_preempt6081-21munin-run09:09:411
81580rcu_preempt0-21swapper/107:59:581
81570rcu_preempt0-21swapper/108:55:001
81570rcu_preempt0-21swapper/107:24:411
81560rcu_preempt7339-21diskmemload10:38:140
81560rcu_preempt2138-21snmpd09:54:300
81560rcu_preempt0-21swapper/108:34:211
81560rcu_preempt0-21swapper/108:19:531
81560rcu_preempt0-21swapper/107:51:151
81560rcu_preempt0-21swapper/010:06:210
9422995546cyclictest181ktimersoftd/108:04:471
81550rcu_preempt7339-21diskmemload12:39:110
81540rcu_preempt11990-21ssh09:21:310
81540rcu_preempt0-21swapper/012:29:460
81540rcu_preempt0-21swapper/012:11:120
81530rcu_preempt8241-21ssh11:19:320
81530rcu_preempt12145-21ssh11:25:170
9421995249cyclictest945-21usb-storage09:29:540
9421995148cyclictest945-21usb-storage10:47:150
9421995148cyclictest945-21usb-storage08:50:330
9421995147cyclictest945-21usb-storage08:19:580
9421995146cyclictest945-21usb-storage12:02:350
81510rcu_preempt0-21swapper/010:44:380
81510rcu_preempt0-21swapper/008:30:110
147650500irq/28-eth0-rx-41ktimersoftd/011:11:580
9421994945cyclictest945-21usb-storage08:25:560
81490rcu_preempt25821-21memory10:50:010
81490rcu_preempt0-21swapper/009:04:030
9421994845cyclictest945-21usb-storage12:40:250
9421994845cyclictest945-21usb-storage07:34:570
81480rcu_preempt7415-21fw_forwarded_lo12:19:580
9421994744cyclictest945-21usb-storage11:50:510
9421994744cyclictest945-21usb-storage10:24:170
9421994744cyclictest945-21usb-storage08:13:330
9421994744cyclictest945-21usb-storage08:06:330
9421994744cyclictest945-21usb-storage07:29:330
9421994743cyclictest945-21usb-storage09:09:560
9421994743cyclictest945-21usb-storage09:05:080
9421994643cyclictest945-21usb-storage09:55:000
9421994643cyclictest945-21usb-storage08:54:530
9421994643cyclictest945-21usb-storage07:39:560
9421994441cyclictest945-21usb-storage07:19:330
9421994340cyclictest945-21usb-storage07:56:330
147950410irq/31-eth0-tx-0-21swapper/007:30:020
147850340irq/30-eth0-tx-11731-21python07:20:060
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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