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2025-05-09 - 05:38
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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 Fri May 09, 2025 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81930rcu_preempt19-21ksoftirqd/121:54:251
89850800irq/17-ehci_hcd171rcuc/122:01:071
81790rcu_preempt19-21ksoftirqd/121:25:561
81750rcu_preempt18255-21ssh23:56:430
81750rcu_preempt0-21swapper/122:07:021
81750rcu_preempt0-21swapper/119:09:391
81740rcu_preempt31367-21ssh22:22:161
81740rcu_preempt19-21ksoftirqd/123:39:551
81730rcu_preempt31199-21ntp_kernel_pll_19:24:271
81730rcu_preempt19-21ksoftirqd/100:01:561
81730rcu_preempt12415-21sh23:45:421
81730rcu_preempt0-21swapper/123:56:261
81730rcu_preempt0-21swapper/123:22:211
81730rcu_preempt0-21swapper/120:09:261
81730rcu_preempt0-21swapper/100:04:421
81720rcu_preempt23957-21ssh22:09:130
81720rcu_preempt19-21ksoftirqd/123:08:131
81720rcu_preempt0-21swapper/123:50:431
81720rcu_preempt0-21swapper/123:50:431
81710rcu_preempt0-21swapper/023:10:110
81710rcu_preempt0-21swapper/023:01:570
81700rcu_preempt7806-21sh23:38:151
81700rcu_preempt14714-21sh22:50:421
81700rcu_preempt0-21swapper/122:44:551
81700rcu_preempt0-21swapper/122:33:171
81700rcu_preempt0-21swapper/119:29:271
81700rcu_preempt0-21swapper/023:33:420
81700rcu_preempt0-21swapper/022:15:410
81690rcu_preempt14176-21sh23:49:290
81690rcu_preempt14176-21sh23:49:290
81690rcu_preempt0-21swapper/121:29:091
81690rcu_preempt0-21swapper/022:34:000
81680rcu_preempt19-21ksoftirqd/100:23:211
81680rcu_preempt16797-21munin-run20:39:081
81680rcu_preempt0-21swapper/123:12:551
27848996847cyclictest1700-21kworker/1:119:42:011
81670rcu_preempt19-21ksoftirqd/122:12:581
81670rcu_preempt0-21swapper/022:28:280
81670rcu_preempt0-21swapper/019:09:250
81660rcu_preempt9693-21ssh21:42:451
81660rcu_preempt7507-21sh21:39:190
81660rcu_preempt21533-21sh23:04:150
81660rcu_preempt19369-21ls20:49:081
81660rcu_preempt19-21ksoftirqd/121:20:321
81660rcu_preempt0-21swapper/120:54:241
81650rcu_preempt27125-21df_abs00:14:251
81650rcu_preempt18717-21wc22:59:091
81650rcu_preempt18117-21tr20:44:081
81650rcu_preempt0-21swapper/120:14:351
81650rcu_preempt0-21swapper/100:09:221
81650rcu_preempt0-21swapper/021:19:440
81640rcu_preempt10603-21df_inode21:44:241
81640rcu_preempt0-21swapper/022:54:300
81640rcu_preempt0-21swapper/022:19:270
81630rcu_preempt19-21ksoftirqd/123:24:161
81630rcu_preempt0-21swapper/020:09:270
81630rcu_preempt0-21swapper/019:59:250
81630rcu_preempt0-21swapper/019:24:220
81620rcu_preempt19-21ksoftirqd/100:43:041
81620rcu_preempt11570-21k10sensors20:14:340
81620rcu_preempt0-21swapper/023:24:380
81620rcu_preempt0-21swapper/023:20:410
81620rcu_preempt0-21swapper/000:19:310
81610rcu_preempt26670-21/usr/sbin/munin22:14:281
81610rcu_preempt19-21ksoftirqd/122:58:021
81610rcu_preempt19-21ksoftirqd/100:30:241
81610rcu_preempt0-21swapper/023:39:280
81610rcu_preempt0-21swapper/022:06:210
81610rcu_preempt0-21swapper/020:59:340
81610rcu_preempt0-21swapper/019:44:200
81610rcu_preempt0-21swapper/019:29:210
81600rcu_preempt0-21swapper/021:38:280
81600rcu_preempt0-21swapper/021:25:000
81600rcu_preempt0-21swapper/000:38:390
81590rcu_preempt3941-21ssh21:32:200
81590rcu_preempt0-21swapper/023:45:100
81590rcu_preempt0-21swapper/023:34:090
81590rcu_preempt0-21swapper/022:38:010
81590rcu_preempt0-21swapper/020:19:320
81590rcu_preempt0-21swapper/000:30:120
81580rcu_preempt15077-21ssh21:52:390
81580rcu_preempt0-21swapper/023:14:340
81580rcu_preempt0-21swapper/022:42:010
81580rcu_preempt0-21swapper/021:59:500
81580rcu_preempt0-21swapper/019:49:230
81580rcu_preempt0-21swapper/000:25:000
81580rcu_preempt0-21swapper/000:11:530
81570rcu_preempt29135-21ssh00:18:500
81570rcu_preempt19-21ksoftirqd/122:26:531
81570rcu_preempt19-21ksoftirqd/121:15:511
81570rcu_preempt13259-21apt-get22:49:210
81570rcu_preempt0-21swapper/021:04:350
81570rcu_preempt0-21swapper/000:06:450
151250570irq/30-eth0-tx-41ktimersoftd/000:42:030
89850560irq/17-ehci_hcd945-21usb-storage19:34:321
81560rcu_preempt28330-21ssh21:18:300
81560rcu_preempt11078-21ntpdc21:44:300
81560rcu_preempt0-21swapper/020:04:210
81560rcu_preempt0-21swapper/019:34:300
81550rcu_preempt17099-21ssh21:55:070
81550rcu_preempt0-21swapper/022:44:280
81550rcu_preempt0-21swapper/020:49:260
81550rcu_preempt0-21swapper/019:39:310
81540rcu_preempt19-21ksoftirqd/122:36:101
81540rcu_preempt0-21swapper/020:25:110
81540rcu_preempt0-21swapper/000:00:430
81530rcu_preempt19-21ksoftirqd/123:30:011
81530rcu_preempt19-21ksoftirqd/123:16:191
89850520irq/17-ehci_hcd945-21usb-storage21:49:241
81520rcu_preempt6866-21ssh00:36:101
81520rcu_preempt30336-21cron19:24:081
81520rcu_preempt21671-21python20:54:310
81520rcu_preempt19-21ksoftirqd/121:38:081
81520rcu_preempt0-21swapper/019:14:290
81510rcu_preempt19-21ksoftirqd/122:39:251
81510rcu_preempt19-21ksoftirqd/100:26:321
81510rcu_preempt0-21swapper/020:45:370
27848995148cyclictest945-21usb-storage20:06:211
27847995047cyclictest945-21usb-storage21:09:340
27847995047cyclictest945-21usb-storage21:09:340
81490rcu_preempt0-21swapper/019:21:180
27848994946cyclictest945-21usb-storage19:16:041
81480rcu_preempt16157-21irqstats20:34:280
27848994644cyclictest181ktimersoftd/120:25:431
27847994643cyclictest945-21usb-storage20:29:220
151350430irq/31-eth0-tx-23101-21kworker/1:021:14:071
151350430irq/31-eth0-tx-23101-21kworker/1:021:14:071
27848994239cyclictest181ktimersoftd/119:54:311
2784799421cyclictest0-21swapper/019:57:070
151350420irq/31-eth0-tx-23101-21kworker/1:021:07:071
27847994138cyclictest945-21usb-storage20:39:320
151350410irq/31-eth0-tx-30322-21kworker/1:020:00:411
151350400irq/31-eth0-tx-30322-21kworker/1:020:31:451
151350400irq/31-eth0-tx-23101-21kworker/1:021:03:071
89850390irq/17-ehci_hcd3896-21/usr/sbin/munin19:44:301
151350380irq/31-eth0-tx-30322-21kworker/1:020:53:251
89850370irq/17-ehci_hcd10512-21kworker/1:120:20:251
89850340irq/17-ehci_hcd945-21usb-storage19:53:171
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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