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2022-01-26 - 12:02

AMD G-T48L Processor, 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 Wed Jan 26, 2022 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81810rcu_preempt8495-21sh22:24:281
89950780irq/17-ehci_hcd26986-21ssh23:59:501
81730rcu_preempt0-21swapper/119:15:281
81710rcu_preempt0-21swapper/100:01:561
81700rcu_preempt6585-21apt-get21:21:440
81700rcu_preempt0-21swapper/023:16:560
81700rcu_preempt0-21swapper/000:35:150
81700rcu_preempt0-21swapper/000:29:590
81690rcu_preempt6412-21ntp_states19:16:540
81690rcu_preempt25264-21fw_conntrack23:56:510
81670rcu_preempt3739-21apt-get21:16:430
81670rcu_preempt20067-21ssh22:46:450
81670rcu_preempt20067-21ssh22:46:450
81670rcu_preempt19-21ksoftirqd/123:40:351
81670rcu_preempt19-21ksoftirqd/123:05:241
81670rcu_preempt18376-21/usr/sbin/munin20:06:481
81660rcu_preempt9806-21irqstats22:26:540
81650rcu_preempt2164-21snmpd20:43:020
81650rcu_preempt12126-21cpuspeed_turbos22:31:460
81650rcu_preempt0-21swapper/022:59:130
81650rcu_preempt0-21swapper/022:18:590
81640rcu_preempt24078-21ntp_offset20:26:560
81640rcu_preempt0-21swapper/121:41:041
81640rcu_preempt0-21swapper/120:17:311
81640rcu_preempt0-21swapper/119:46:561
81640rcu_preempt0-21swapper/100:14:361
81640rcu_preempt0-21swapper/022:37:010
81640rcu_preempt0-21swapper/021:46:540
81630rcu_preempt4667-21ssh22:16:541
81630rcu_preempt1623-21ssh22:11:550
81630rcu_preempt14872-21df21:36:460
81630rcu_preempt10685-21ssh00:31:461
81630rcu_preempt0-21swapper/122:59:031
81630rcu_preempt0-21swapper/121:57:331
81630rcu_preempt0-21swapper/121:27:321
81630rcu_preempt0-21swapper/120:46:501
81630rcu_preempt0-21swapper/023:14:400
81630rcu_preempt0-21swapper/022:54:310
149650630irq/31-eth0-tx-945-21usb-storage23:43:471
81620rcu_preempt4644-21ssh00:18:431
81620rcu_preempt30752-21munin-run22:06:280
81620rcu_preempt26100-21ssh21:56:530
81620rcu_preempt20143-21sort21:46:290
81620rcu_preempt18516-21ssh00:46:191
81620rcu_preempt17565-21latency23:41:560
81620rcu_preempt16927-21ssh22:40:361
81620rcu_preempt0-21swapper/122:55:201
81620rcu_preempt0-21swapper/122:16:151
81620rcu_preempt0-21swapper/121:09:231
81620rcu_preempt0-21swapper/120:42:511
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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