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2022-06-27 - 16:45

x86 AMD G-T48L @1400 MHz, Linux 4.4.4-rt11 (Profile)

Latency plot of system in rack #c, slot #3
Data to construct the above plot have been generated using the RT test utility cyclictest.
Command line: cyclictest -l100000000 -m -Sp99 -i200 -h400 -q
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 50 highest latencies:
System rackcslot3.osadl.org (updated Mon Jun 27, 2022 12:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81760rcu_preempt845-1kworker/0:2H09:39:320
148650760irq/30-eth0-tx-9455-21kworker/0:209:57:290
81740rcu_preempt11949-21/usr/sbin/munin07:34:270
81730rcu_preempt4587-21sh12:16:100
81710rcu_preempt0-21swapper/109:59:291
81710rcu_preempt0-21swapper/109:36:551
81710rcu_preempt0-21swapper/107:09:341
81710rcu_preempt0-21swapper/011:37:530
81700rcu_preempt4283-21diskmemload09:45:120
81700rcu_preempt31772-21diskstats10:04:260
81700rcu_preempt31764-21df_inode10:04:261
81700rcu_preempt19879-21sh10:43:581
81700rcu_preempt10395-21sh11:25:320
81700rcu_preempt0-21swapper/111:46:401
81700rcu_preempt0-21swapper/012:05:260
81700rcu_preempt0-21swapper/009:25:440
81700rcu_preempt0-21swapper/009:20:320
148750700irq/31-eth0-tx-0-21swapper/012:02:310
81690rcu_preempt2976-1kworker/1:0H07:37:041
81690rcu_preempt29185-21df_inode09:59:300
81690rcu_preempt0-21swapper/010:19:340
81680rcu_preempt17158-21sh09:36:360
81680rcu_preempt0-21swapper/109:48:361
81680rcu_preempt0-21swapper/109:19:301
81680rcu_preempt0-21swapper/011:34:020
81680rcu_preempt0-21swapper/011:20:550
89950670irq/17-ehci_hcd0-21swapper/011:15:140
81670rcu_preempt9644-21ssh10:24:200
81670rcu_preempt21929-21ls08:14:270
81670rcu_preempt16482-21sh07:54:090
81670rcu_preempt13674-21ssh12:34:220
81670rcu_preempt0-21swapper/112:24:281
81670rcu_preempt0-21swapper/112:14:561
81670rcu_preempt0-21swapper/112:03:081
81670rcu_preempt0-21swapper/109:04:301
81670rcu_preempt0-21swapper/108:12:111
81660rcu_preempt7699-21sh12:22:430
81660rcu_preempt14757-21strings07:44:311
81660rcu_preempt14757-21strings07:44:311
81660rcu_preempt0-21swapper/108:31:571
81660rcu_preempt0-21swapper/107:57:081
89950650irq/17-ehci_hcd945-21usb-storage09:40:431
89950650irq/17-ehci_hcd32231-21/usr/sbin/munin08:54:301
89550650irq/17-ehci_hcd0-21swapper/011:51:050
81650rcu_preempt28741-21proc_pri08:39:330
81650rcu_preempt19944-21turbostat10:44:090
81650rcu_preempt11022-21ssh11:27:361
81650rcu_preempt0-21swapper/112:42:301
81650rcu_preempt0-21swapper/112:09:381
81650rcu_preempt0-21swapper/110:49:371
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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