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2025-01-14 - 07:32
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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 Tue Jan 14, 2025 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81860rcu_preempt19-21ksoftirqd/121:58:051
81770rcu_preempt19-21ksoftirqd/122:45:251
81770rcu_preempt19-21ksoftirqd/121:42:421
81760rcu_preempt19-21ksoftirqd/122:04:161
81740rcu_preempt2018-21ssh23:01:490
81740rcu_preempt0-21swapper/119:20:451
81730rcu_preempt19-21ksoftirqd/100:18:141
89550710irq/17-ehci_hcd111rcuc/000:22:430
81710rcu_preempt831-21ntp_states00:01:500
81710rcu_preempt7403-21ssh22:10:130
81710rcu_preempt32198-21ssh00:01:090
81710rcu_preempt0-21swapper/022:26:550
89950700irq/17-ehci_hcd12733-21sh00:26:071
81700rcu_preempt0-21swapper/021:41:470
81700rcu_preempt0-21swapper/021:35:220
81690rcu_preempt13267-21diskmemload21:59:540
81690rcu_preempt0-21swapper/020:16:500
81670rcu_preempt0-21swapper/000:38:400
81660rcu_preempt19313-21sendmail-msp21:31:320
81660rcu_preempt15506-21diskstats19:16:470
81650rcu_preempt5605-21munin-run00:11:320
81650rcu_preempt0-21swapper/100:44:291
89950640irq/17-ehci_hcd11399-21sh23:21:281
81640rcu_preempt0-21swapper/022:36:320
81640rcu_preempt0-21swapper/019:36:550
89950630irq/17-ehci_hcd945-21usb-storage20:11:571
81630rcu_preempt626-21ssh23:00:121
81630rcu_preempt25013-21df_abs23:46:460
81630rcu_preempt0-21swapper/022:22:070
89950620irq/17-ehci_hcd181ktimersoftd/100:31:471
81620rcu_preempt8058-21apt-get22:11:430
81620rcu_preempt5708-21ssh23:08:241
81620rcu_preempt19660-21ssh22:32:161
81620rcu_preempt0-21swapper/123:25:291
81620rcu_preempt0-21swapper/122:31:041
81620rcu_preempt0-21swapper/000:26:510
138450620irq/30-eth0-tx-41ktimersoftd/023:24:370
89550610irq/17-ehci_hcd0-21swapper/000:19:240
81610rcu_preempt7302-21ssh00:12:581
81610rcu_preempt5193-21ssh00:10:231
81610rcu_preempt14956-21ssh21:22:471
81610rcu_preempt0-21swapper/122:49:581
81610rcu_preempt0-21swapper/122:06:551
81610rcu_preempt0-21swapper/119:51:531
81610rcu_preempt0-21swapper/119:31:501
81610rcu_preempt0-21swapper/023:31:510
81610rcu_preempt0-21swapper/022:38:440
81610rcu_preempt0-21swapper/000:49:510
81600rcu_preempt9080-21ntp_states21:02:011
81600rcu_preempt29850-21ssh23:54:401
81600rcu_preempt24537-21ssh23:46:111
81600rcu_preempt22645-21ssh22:40:501
81600rcu_preempt22315-21ntp_states19:41:581
81600rcu_preempt18638-21ssh21:29:431
81600rcu_preempt13730-21ssh00:26:531
81600rcu_preempt10155-21sh23:17:340
81600rcu_preempt0-21swapper/123:56:591
81600rcu_preempt0-21swapper/123:46:511
81600rcu_preempt0-21swapper/122:52:521
81600rcu_preempt0-21swapper/121:48:041
81600rcu_preempt0-21swapper/121:39:481
81600rcu_preempt0-21swapper/120:34:461
81600rcu_preempt0-21swapper/120:04:331
81600rcu_preempt0-21swapper/100:48:451
81600rcu_preempt0-21swapper/100:02:501
81600rcu_preempt0-21swapper/023:52:440
81600rcu_preempt0-21swapper/021:26:320
81590rcu_preempt9905-21ssh22:14:021
81590rcu_preempt31719-21munin-run22:56:320
81590rcu_preempt27538-21kernelversion21:46:510
81590rcu_preempt2136-21snmpd20:23:391
81590rcu_preempt18486-21awk19:26:510
81590rcu_preempt18486-21awk19:26:510
81590rcu_preempt0-21swapper/123:04:421
81590rcu_preempt0-21swapper/122:21:361
81590rcu_preempt0-21swapper/121:06:531
81590rcu_preempt0-21swapper/120:16:551
81590rcu_preempt0-21swapper/119:56:331
81590rcu_preempt0-21swapper/020:56:540
81590rcu_preempt0-21swapper/020:56:540
81590rcu_preempt0-21swapper/020:21:530
81590rcu_preempt0-21swapper/019:46:450
81580rcu_preempt32459-21ssh21:55:380
81580rcu_preempt21290-21ssh21:33:461
81580rcu_preempt20769-21ssh23:38:101
81580rcu_preempt20389-21ssh00:41:231
81580rcu_preempt19794-21ntpq19:31:520
81580rcu_preempt16784-21ssh23:30:341
81580rcu_preempt11104-21ssh22:17:160
81580rcu_preempt0-21swapper/123:31:581
81580rcu_preempt0-21swapper/123:15:271
81580rcu_preempt0-21swapper/023:06:490
81580rcu_preempt0-21swapper/021:11:320
81570rcu_preempt8525-21ssh23:13:070
81570rcu_preempt29942-21ntpq20:11:530
81570rcu_preempt22391-21ssh21:36:350
81570rcu_preempt0-21swapper/122:19:271
81570rcu_preempt0-21swapper/121:52:031
81570rcu_preempt0-21swapper/120:09:331
81570rcu_preempt0-21swapper/119:23:291
81570rcu_preempt0-21swapper/023:29:420
81570rcu_preempt0-21swapper/022:46:550
81570rcu_preempt0-21swapper/000:31:530
81560rcu_preempt13250-21sshd21:20:450
81560rcu_preempt0-21swapper/020:02:000
81560rcu_preempt0-21swapper/019:41:540
89950550irq/17-ehci_hcd0-21swapper/023:43:290
81550rcu_preempt7199-21ssh00:12:350
81550rcu_preempt25410-21ssh22:45:360
81550rcu_preempt0-21swapper/121:14:511
81550rcu_preempt0-21swapper/119:49:311
81550rcu_preempt0-21swapper/119:37:301
81550rcu_preempt0-21swapper/022:05:320
81550rcu_preempt0-21swapper/019:53:210
138250550irq/28-eth0-rx-41ktimersoftd/020:43:540
81540rcu_preempt22410-21ssh00:44:050
81540rcu_preempt0-21swapper/121:20:091
81540rcu_preempt0-21swapper/120:56:391
81540rcu_preempt0-21swapper/120:56:391
81540rcu_preempt0-21swapper/120:53:501
81540rcu_preempt0-21swapper/120:37:181
81540rcu_preempt0-21swapper/020:37:250
81540rcu_preempt0-21swapper/019:22:190
81530rcu_preempt0-21swapper/023:38:030
81530rcu_preempt0-21swapper/022:56:400
81530rcu_preempt0-21swapper/020:34:280
81520rcu_preempt26501-21/usr/sbin/munin20:01:310
81520rcu_preempt0-21swapper/020:47:010
89950510irq/17-ehci_hcd0-21swapper/120:44:061
16421995148cyclictest945-21usb-storage20:29:031
81500rcu_preempt0-21swapper/021:14:180
16421995047cyclictest181ktimersoftd/120:50:051
16421994946cyclictest945-21usb-storage19:30:041
16421994946cyclictest945-21usb-storage19:30:041
81480rcu_preempt1143-21memory20:26:510
138250470irq/28-eth0-rx-0-21swapper/021:02:010
81450rcu_preempt6107-21fw_conntrack20:51:490
79850360irq/19-0000:00:29006-21cron20:11:310
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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