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2021-10-26 - 23:53

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 100 highest latencies:
System rackcslot3.osadl.org (updated Fri Oct 15, 2021 12:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81890rcu_preempt0-21swapper/112:30:451
89950780irq/17-ehci_hcd945-21usb-storage07:05:470
89550780irq/17-ehci_hcd41ktimersoftd/011:54:520
89950720irq/17-ehci_hcd945-21usb-storage08:07:090
81720rcu_preempt22432-21wc07:05:431
81710rcu_preempt16600-21ssh10:00:280
81700rcu_preempt28358-21ntp_states11:20:370
81700rcu_preempt0-21swapper/012:35:370
81680rcu_preempt1169-21kworker/0:009:44:390
89950670irq/17-ehci_hcd945-21usb-storage09:43:331
81670rcu_preempt0-21swapper/011:31:240
81670rcu_preempt0-21swapper/009:20:210
81670rcu_preempt0-21swapper/009:00:490
81660rcu_preempt31852-21munin-run07:45:130
81660rcu_preempt28777-21ntp_states12:20:480
81660rcu_preempt0-21swapper/012:16:230
81660rcu_preempt0-21swapper/009:12:260
81650rcu_preempt24958-21ssh11:15:320
81650rcu_preempt24940-21ssh12:15:081
81650rcu_preempt20892-21sh09:10:130
81650rcu_preempt0-21swapper/109:39:071
81650rcu_preempt0-21swapper/107:23:451
81650rcu_preempt0-21swapper/010:09:530
81640rcu_preempt0-21swapper/112:19:411
81640rcu_preempt0-21swapper/110:14:241
81630rcu_preempt3098-21cat09:35:330
81630rcu_preempt1272-21ssh09:31:381
81630rcu_preempt0-21swapper/112:38:121
81630rcu_preempt0-21swapper/112:21:051
81630rcu_preempt0-21swapper/109:25:131
81630rcu_preempt0-21swapper/107:11:151
149650630irq/31-eth0-tx-0-21swapper/111:32:041
81620rcu_preempt0-21swapper/012:30:380
81620rcu_preempt0-21swapper/012:10:290
81620rcu_preempt0-21swapper/012:02:490
81620rcu_preempt0-21swapper/010:15:140
81610rcu_preempt32689-21ssh12:28:281
81610rcu_preempt30604-21sendmail-msp07:40:130
81610rcu_preempt2164-21snmpd11:54:521
81610rcu_preempt0-21swapper/111:07:281
81610rcu_preempt0-21swapper/111:01:101
81610rcu_preempt0-21swapper/109:29:421
81610rcu_preempt0-21swapper/108:42:191
81600rcu_preempt30943-21processes10:25:410
81600rcu_preempt29427-21ssh11:22:581
81600rcu_preempt0-21swapper/111:28:481
81600rcu_preempt0-21swapper/110:28:481
81600rcu_preempt0-21swapper/109:47:151
81600rcu_preempt0-21swapper/109:12:081
81600rcu_preempt0-21swapper/108:30:561
81600rcu_preempt0-21swapper/008:23:080
81590rcu_preempt7711-21ssh11:41:551
81590rcu_preempt28502-21ls10:20:450
81590rcu_preempt14979-21ssh09:56:091
81590rcu_preempt12103-21ssh09:50:511
81590rcu_preempt12103-21ssh09:50:511
81590rcu_preempt0-21swapper/111:57:141
81590rcu_preempt0-21swapper/111:50:041
81590rcu_preempt0-21swapper/111:12:541
81590rcu_preempt0-21swapper/110:50:471
81590rcu_preempt0-21swapper/108:55:371
81590rcu_preempt0-21swapper/011:10:340
81590rcu_preempt0-21swapper/009:25:290
81580rcu_preempt9099-21proc_pri09:45:440
81580rcu_preempt32144-21ssh11:28:070
81580rcu_preempt2994-21munin-run10:35:140
81580rcu_preempt0-21swapper/111:35:521
81580rcu_preempt0-21swapper/110:46:451
81580rcu_preempt0-21swapper/110:23:371
81580rcu_preempt0-21swapper/110:18:481
81580rcu_preempt0-21swapper/110:05:511
81580rcu_preempt0-21swapper/107:50:351
81580rcu_preempt0-21swapper/107:35:351
81580rcu_preempt0-21swapper/107:30:451
81580rcu_preempt0-21swapper/012:26:400
81580rcu_preempt0-21swapper/011:09:000
81580rcu_preempt0-21swapper/009:53:010
81580rcu_preempt0-21swapper/009:53:010
81580rcu_preempt0-21swapper/008:25:390
81570rcu_preempt32528-21diskstats09:30:300
81570rcu_preempt2934-21ssh10:35:061
81570rcu_preempt20901-21diskmemload09:55:420
81570rcu_preempt18436-21latency_hist09:00:140
81570rcu_preempt13393-21ssh10:53:540
81570rcu_preempt0-21swapper/112:07:231
81570rcu_preempt0-21swapper/112:03:081
81570rcu_preempt0-21swapper/111:15:471
81570rcu_preempt0-21swapper/110:57:441
81570rcu_preempt0-21swapper/110:42:121
81570rcu_preempt0-21swapper/110:03:411
81570rcu_preempt0-21swapper/108:50:331
81570rcu_preempt0-21swapper/108:24:411
81570rcu_preempt0-21swapper/011:36:030
81560rcu_preempt7431-21ssh10:41:460
81560rcu_preempt25612-21ssh09:17:051
81560rcu_preempt21346-21ssh12:06:550
81560rcu_preempt0-21swapper/108:45:361
81560rcu_preempt0-21swapper/108:25:471
81560rcu_preempt0-21swapper/108:08:371
81560rcu_preempt0-21swapper/107:50:081
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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