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2025-06-23 - 20:59
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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 792 highest latencies:
System rackcslot3.osadl.org (updated Sat Jun 21, 2025 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81790rcu_preempt19-21ksoftirqd/123:49:441
81760rcu_preempt8564-21munin-run20:26:001
81760rcu_preempt24162-21latency_hist21:21:011
81760rcu_preempt19-21ksoftirqd/100:04:441
81760rcu_preempt15676-21ntp_kernel_err20:51:261
81760rcu_preempt0-21swapper/122:49:051
81740rcu_preempt3502-21awk20:01:291
81740rcu_preempt18668-21ssh23:11:001
81740rcu_preempt0-21swapper/120:26:291
81730rcu_preempt0-21swapper/123:11:211
81720rcu_preempt4378-21sh23:43:461
81720rcu_preempt0-21swapper/119:16:121
81710rcu_preempt9581-21ssh22:52:300
81710rcu_preempt6494-21ssh23:46:420
81710rcu_preempt0-21swapper/123:56:221
81710rcu_preempt0-21swapper/123:21:181
81710rcu_preempt0-21swapper/121:36:011
81710rcu_preempt0-21swapper/121:06:161
81710rcu_preempt0-21swapper/120:06:231
81700rcu_preempt24422-21apt-get22:21:151
81700rcu_preempt0-21swapper/123:26:191
81700rcu_preempt0-21swapper/122:06:281
81700rcu_preempt0-21swapper/121:58:211
81700rcu_preempt0-21swapper/121:19:061
81700rcu_preempt0-21swapper/121:11:241
81700rcu_preempt0-21swapper/120:56:201
81700rcu_preempt0-21swapper/119:21:181
81700rcu_preempt0-21swapper/100:31:201
81700rcu_preempt0-21swapper/100:09:251
81700rcu_preempt0-21swapper/000:44:560
81690rcu_preempt31764-21ssh22:34:240
81690rcu_preempt31104-21diskmemload23:32:291
81690rcu_preempt29942-21diskstats23:31:220
81690rcu_preempt21140-21diskmemload21:18:170
81690rcu_preempt0-21swapper/123:39:331
81690rcu_preempt0-21swapper/122:39:571
81690rcu_preempt0-21swapper/122:02:201
81690rcu_preempt0-21swapper/121:42:411
81690rcu_preempt0-21swapper/100:25:281
81680rcu_preempt28941-21ssh22:29:081
81680rcu_preempt2342-21ssh00:41:171
81680rcu_preempt21140-21diskmemload21:55:190
81680rcu_preempt21140-21diskmemload00:39:300
81680rcu_preempt0-21swapper/122:59:111
81680rcu_preempt0-21swapper/122:54:201
81670rcu_preempt29404-21k10sensors19:36:271
81670rcu_preempt28035-21find19:31:281
81670rcu_preempt21140-21diskmemload23:29:210
81670rcu_preempt0-21swapper/123:53:371
81670rcu_preempt0-21swapper/123:20:011
81670rcu_preempt0-21swapper/123:01:541
81670rcu_preempt0-21swapper/122:35:441
81670rcu_preempt0-21swapper/121:36:281
81670rcu_preempt0-21swapper/121:26:111
81660rcu_preempt7993-21munin-run21:51:001
81660rcu_preempt28847-21apache219:51:161
81660rcu_preempt0-21swapper/100:12:401
151350660irq/31-eth0-tx-17179-21kworker/1:019:13:551
81650rcu_preempt19-21ksoftirqd/122:19:571
81650rcu_preempt0-21swapper/100:36:091
81650rcu_preempt0-21swapper/100:30:261
81650rcu_preempt0-21swapper/100:16:291
81640rcu_preempt22397-21fw_conntrack19:11:150
81630rcu_preempt0-21swapper/122:43:321
81630rcu_preempt0-21swapper/122:11:181
81630rcu_preempt0-21swapper/023:16:310
89450620irq/17-ehci_hcd0-21swapper/023:36:480
81620rcu_preempt0-21swapper/121:55:011
81620rcu_preempt0-21swapper/020:36:130
81610rcu_preempt21140-21diskmemload22:30:510
81600rcu_preempt21140-21diskmemload23:55:000
81600rcu_preempt21140-21diskmemload00:08:080
81600rcu_preempt0-21swapper/120:46:211
81600rcu_preempt0-21swapper/120:36:161
81590rcu_preempt0-21swapper/121:01:231
81590rcu_preempt0-21swapper/120:16:131
81590rcu_preempt0-21swapper/119:41:241
81580rcu_preempt0-21swapper/120:41:261
81580rcu_preempt0-21swapper/120:11:211
81580rcu_preempt0-21swapper/000:20:120
81570rcu_preempt0-21swapper/023:43:090
23291995748cyclictest945-21usb-storage22:12:500
81560rcu_preempt0-21swapper/120:35:251
81560rcu_preempt0-21swapper/119:57:551
81560rcu_preempt0-21swapper/119:27:551
81550rcu_preempt0-21swapper/119:50:261
81540rcu_preempt7306-21ssh22:48:490
151250540irq/30-eth0-tx-0-21swapper/023:10:060
151050540irq/28-eth0-rx-41ktimersoftd/020:43:230
81530rcu_preempt3077-21df_inode21:41:170
81520rcu_preempt0-21swapper/023:12:450
81520rcu_preempt0-21swapper/022:00:240
151050520irq/28-eth0-rx-41ktimersoftd/023:21:210
151050520irq/28-eth0-rx-41ktimersoftd/022:09:130
151050520irq/28-eth0-rx-41ktimersoftd/021:37:370
81510rcu_preempt0-21swapper/021:35:130
23291995148cyclictest945-21usb-storage22:16:190
23291995148cyclictest945-21usb-storage21:46:180
23291995148cyclictest945-21usb-storage21:26:200
23291995148cyclictest945-21usb-storage20:26:240
151050510irq/28-eth0-rx-41ktimersoftd/000:00:260
23291995047cyclictest945-21usb-storage22:21:280
23291995047cyclictest945-21usb-storage22:02:540
23291995046cyclictest945-21usb-storage23:01:280
23291995046cyclictest945-21usb-storage00:28:390
23291995046cyclictest945-21usb-storage00:21:230
151050500irq/28-eth0-rx-41ktimersoftd/000:11:390
89850490irq/17-ehci_hcd29459-21switchtime19:36:280
81490rcu_preempt31461-21ssh00:35:000
23291994946cyclictest945-21usb-storage22:44:490
23291994946cyclictest945-21usb-storage21:21:270
23291994946cyclictest945-21usb-storage20:56:180
23291994946cyclictest945-21usb-storage19:56:220
23291994946cyclictest945-21usb-storage19:55:060
23291994944cyclictest945-21usb-storage19:23:010
23291994845cyclictest945-21usb-storage22:39:310
23291994845cyclictest945-21usb-storage20:31:000
23291994843cyclictest945-21usb-storage19:31:180
81470rcu_preempt0-21swapper/019:18:520
23291994744cyclictest945-21usb-storage22:57:370
81460rcu_preempt2650-21diskstats20:01:160
81450rcu_preempt17758-21fw_conntrack21:01:170
23291994542cyclictest945-21usb-storage20:06:110
23291994542cyclictest945-21usb-storage00:05:490
23291994441cyclictest945-21usb-storage21:11:250
23291994441cyclictest945-21usb-storage19:41:290
23291994340cyclictest945-21usb-storage20:15:060
151050430irq/28-eth0-rx-0-21swapper/020:16:150
23291994239cyclictest945-21usb-storage20:51:270
89850410irq/17-ehci_hcd945-21usb-storage20:50:050
81390rcu_preempt26210-21fw_conntrack19:26:200
151150390irq/29-eth0-rx-0-21swapper/020:21:270
151350380irq/31-eth0-tx-0-21swapper/019:46:230
89850320irq/17-ehci_hcd0-21swapper/021:07:520
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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