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2023-03-24 - 03:07

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 Mar 24, 2023 00:43:25)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81920rcu_preempt20939-21kworker/1:122:43:111
81780rcu_preempt19-21ksoftirqd/122:54:521
81770rcu_preempt0-21swapper/021:00:220
81770rcu_preempt0-21swapper/021:00:220
81750rcu_preempt26783-21sshd23:17:360
81740rcu_preempt9867-21latency_hist21:50:020
81730rcu_preempt15953-21diskstats22:00:191
81730rcu_preempt0-21swapper/119:10:241
81730rcu_preempt0-21swapper/019:20:240
81730rcu_preempt0-21swapper/000:15:160
89850720irq/17-ehci_hcd945-21usb-storage19:13:400
81720rcu_preempt15750-21cron20:50:020
81720rcu_preempt0-21swapper/021:25:180
81710rcu_preempt9335-21ntpq22:45:340
81710rcu_preempt0-21swapper/023:55:360
81710rcu_preempt0-21swapper/020:30:310
81700rcu_preempt6255-21ssh00:39:580
81700rcu_preempt28762-1kworker/1:2H21:21:331
81700rcu_preempt0-21swapper/021:23:250
147850700irq/31-eth0-tx-19-21ksoftirqd/122:58:211
81690rcu_preempt29691-21ssh00:23:200
81690rcu_preempt0-21swapper/022:50:130
81690rcu_preempt0-21swapper/021:44:350
81680rcu_preempt24790-21munin-run23:15:020
81680rcu_preempt22032-21diskmemload00:12:221
81680rcu_preempt0-21swapper/123:06:271
81680rcu_preempt0-21swapper/022:42:100
81670rcu_preempt17534-21if_err_wlan020:55:340
81670rcu_preempt0-21swapper/123:57:361
81670rcu_preempt0-21swapper/021:16:270
81670rcu_preempt0-21swapper/020:10:170
81660rcu_preempt25998-21irqstats00:15:311
81660rcu_preempt22032-21diskmemload00:27:220
81660rcu_preempt0-21swapper/023:41:350
81650rcu_preempt9339-21df_abs23:45:220
81650rcu_preempt31017-21ssh21:30:171
81650rcu_preempt30350-21sort23:25:020
81650rcu_preempt0-21swapper/121:05:281
81650rcu_preempt0-21swapper/022:06:440
81640rcu_preempt467-21timerandwakeup19:45:281
81640rcu_preempt3834-21sendmail_mailqu22:35:311
81640rcu_preempt32759-21sh23:29:310
81640rcu_preempt1668-21mailstats23:30:350
81640rcu_preempt0-21swapper/121:15:311
81640rcu_preempt0-21swapper/120:20:171
81630rcu_preempt8854-21ssh22:45:271
81630rcu_preempt4429-21processes23:35:330
81630rcu_preempt0-21swapper/119:55:221
81630rcu_preempt0-21swapper/022:26:460
81620rcu_preempt28360-21missed_timers00:20:281
81620rcu_preempt25254-21sendmail_mailtr19:15:270
81620rcu_preempt0-21swapper/123:15:231
81620rcu_preempt0-21swapper/021:55:220
81610rcu_preempt4488-21ssh22:36:460
81610rcu_preempt31887-21kworker/u4:223:07:360
81610rcu_preempt29127-21ssh22:23:350
81610rcu_preempt10275-21ssh21:50:250
81610rcu_preempt0-21swapper/123:35:351
81610rcu_preempt0-21swapper/120:45:281
81610rcu_preempt0-21swapper/120:05:211
81610rcu_preempt0-21swapper/100:05:201
81610rcu_preempt0-21swapper/100:00:321
81610rcu_preempt0-21swapper/022:10:310
81600rcu_preempt9068-21ssh21:47:391
81600rcu_preempt320-21fw_conntrack22:30:270
81600rcu_preempt19110-21sshd00:02:170
81600rcu_preempt17906-21diskmemload23:00:400
81600rcu_preempt0-21swapper/123:27:191
81600rcu_preempt0-21swapper/023:50:350
81600rcu_preempt0-21swapper/023:50:350
81600rcu_preempt0-21swapper/022:57:050
81600rcu_preempt0-21swapper/021:05:190
81600rcu_preempt0-21swapper/019:55:270
81600rcu_preempt0-21swapper/000:41:120
81590rcu_preempt3088-21ssh00:33:510
81590rcu_preempt26610-21ssh22:19:380
81590rcu_preempt12126-21ssh21:53:391
81590rcu_preempt0-21swapper/123:45:281
81590rcu_preempt0-21swapper/123:40:221
81590rcu_preempt0-21swapper/022:01:040
81590rcu_preempt0-21swapper/021:38:090
81590rcu_preempt0-21swapper/021:30:190
81590rcu_preempt0-21swapper/019:47:360
81590rcu_preempt0-21swapper/000:10:270
89850580irq/17-ehci_hcd0-21swapper/121:43:021
81580rcu_preempt28637-21processes23:20:341
81580rcu_preempt26406-21proc_pri19:20:301
81580rcu_preempt20075-21ssh00:05:040
81580rcu_preempt18588-21ssh23:02:541
81580rcu_preempt0-21swapper/120:25:181
81580rcu_preempt0-21swapper/020:50:390
81580rcu_preempt0-21swapper/020:20:030
81580rcu_preempt0-21swapper/020:16:060
81580rcu_preempt0-21swapper/019:41:450
81580rcu_preempt0-21swapper/019:27:400
81570rcu_preempt6091-21ssh00:39:301
81570rcu_preempt322-21ssh00:29:191
81570rcu_preempt28127-21sshd22:20:371
81570rcu_preempt21116-21df_abs21:10:170
81570rcu_preempt2026-21ssh23:30:561
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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