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2022-05-26 - 23:15

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 100 highest latencies:
System rackcslot3.osadl.org (updated Fri May 20, 2022 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81760rcu_preempt30815-21latency_hist22:57:501
81750rcu_preempt15688-21switchtime00:38:150
81740rcu_preempt5008-21ssh00:18:001
81740rcu_preempt17213-21switchtime21:23:131
81740rcu_preempt10826-21latency_hist21:12:491
81740rcu_preempt0-21swapper/021:28:280
81730rcu_preempt5638-21sh23:12:060
81730rcu_preempt1822-21ssh23:03:100
81730rcu_preempt13879-21ssh21:18:031
81720rcu_preempt19284-21sendmail_mailqu23:38:131
81720rcu_preempt19284-21sendmail_mailqu23:38:131
81710rcu_preempt18166-21sh22:31:461
81710rcu_preempt0-21swapper/120:28:031
81700rcu_preempt21632-21ntpq23:43:101
81700rcu_preempt21632-21ntpq23:43:101
81700rcu_preempt0-21swapper/122:16:281
81700rcu_preempt0-21swapper/120:23:051
81700rcu_preempt0-21swapper/021:18:140
81700rcu_preempt0-21swapper/021:15:330
81690rcu_preempt0-21swapper/100:06:051
81690rcu_preempt0-21swapper/023:41:170
81690rcu_preempt0-21swapper/023:41:170
81690rcu_preempt0-21swapper/021:39:360
81680rcu_preempt0-21swapper/122:18:061
89550670irq/17-ehci_hcd0-21swapper/000:18:430
81670rcu_preempt0-21swapper/121:37:541
81670rcu_preempt0-21swapper/000:26:540
89950660irq/17-ehci_hcd17030-21sendmail00:42:491
81660rcu_preempt6982-21munin-run20:57:490
81660rcu_preempt2993-21ssh00:12:591
81660rcu_preempt27997-21munin-run20:12:491
81660rcu_preempt20992-21munin-run21:32:491
81660rcu_preempt13401-21sh00:33:420
81660rcu_preempt0-21swapper/023:31:470
81660rcu_preempt0-21swapper/000:05:000
81650rcu_preempt8593-21cpuspeed_turbos23:18:011
81650rcu_preempt32676-21ps20:28:120
81650rcu_preempt3-21ksoftirqd/023:51:180
81650rcu_preempt0-21swapper/123:48:231
81640rcu_preempt31574-21ssh22:58:091
81640rcu_preempt29731-21tail21:48:141
81640rcu_preempt27920-21ssh22:51:270
81640rcu_preempt0-21swapper/122:48:411
81640rcu_preempt0-21swapper/021:43:040
81640rcu_preempt0-21swapper/021:26:440
89550630irq/17-ehci_hcd7864-21ssh22:10:060
81630rcu_preempt4613-21ssh22:03:110
81630rcu_preempt16036-21munin-run22:27:490
81630rcu_preempt16036-21munin-run22:27:490
81630rcu_preempt1292-21kworker/u4:100:34:041
81630rcu_preempt0-21swapper/122:43:031
81630rcu_preempt0-21swapper/023:27:490
81630rcu_preempt0-21swapper/022:55:410
81620rcu_preempt7500-21ssh23:14:441
81620rcu_preempt3-21ksoftirqd/022:46:090
81620rcu_preempt2072-21ssh00:09:040
81620rcu_preempt0-21swapper/121:33:111
81620rcu_preempt0-21swapper/121:16:491
81620rcu_preempt0-21swapper/020:15:160
81610rcu_preempt9782-21ssh00:28:040
81610rcu_preempt3254-21ssh22:01:161
81610rcu_preempt2852-21ssh23:05:201
81610rcu_preempt18601-21ssh22:33:000
81610rcu_preempt15307-21ssh23:31:121
81610rcu_preempt0-21swapper/123:10:571
81610rcu_preempt0-21swapper/122:40:331
81610rcu_preempt0-21swapper/122:33:011
81610rcu_preempt0-21swapper/122:03:011
81610rcu_preempt0-21swapper/119:08:101
81610rcu_preempt0-21swapper/100:08:081
81610rcu_preempt0-21swapper/021:03:060
81600rcu_preempt9767-21ssh23:18:480
81600rcu_preempt30183-21ssh21:49:270
81600rcu_preempt27776-21ssh21:44:321
81600rcu_preempt0-21swapper/123:23:051
81600rcu_preempt0-21swapper/120:52:301
81600rcu_preempt0-21swapper/119:28:031
81600rcu_preempt0-21swapper/119:13:111
81600rcu_preempt0-21swapper/100:23:591
81600rcu_preempt0-21swapper/100:02:161
81590rcu_preempt5730-21munin-run20:52:490
81590rcu_preempt17292-21ssh23:34:131
81590rcu_preempt0-21swapper/122:09:291
81590rcu_preempt0-21swapper/121:53:061
81590rcu_preempt0-21swapper/121:03:081
81590rcu_preempt0-21swapper/119:48:041
81590rcu_preempt0-21swapper/119:42:501
81590rcu_preempt0-21swapper/021:08:120
81580rcu_preempt7996-21ssh23:16:380
81580rcu_preempt3-21ksoftirqd/022:58:010
81580rcu_preempt20874-21/usr/sbin/munin23:43:110
81580rcu_preempt20874-21/usr/sbin/munin23:43:110
81580rcu_preempt0-21swapper/123:53:431
81580rcu_preempt0-21swapper/122:24:551
81580rcu_preempt0-21swapper/122:24:551
81580rcu_preempt0-21swapper/119:53:021
81580rcu_preempt0-21swapper/023:54:000
81580rcu_preempt0-21swapper/020:43:060
81570rcu_preempt8278-21kworker/0:119:08:060
81570rcu_preempt4298-21ssh00:14:320
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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